Fast moving drilling rig

• US 20040211598A1
• Filed: 04/20/2004
• Published: 10/28/2004
• Est. Priority Date: 04/25/2003
• Status: Active Grant

• Current Assignee: National Oilwell LP (National Oilwell Varco Incorporated)
• Original Assignee: National Oilwell Inc (NOV, Inc.)
• Inventors: Palidis, Anastasios
• Granted Patent: US 7,765,749 B2
• Time in Patent Office: Days
• US Class Current: 175/162
• CPC Class Codes: E21B 15/00 Supports for the drilling machine, e.g. derricks or masts
• CPC Class Codes: E21B 7/02 Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting

Abstract

A method and apparatus for transporting and assembling a drilling rig is disclosed. The drilling rig of a preferred embodiment of the present invention utilizes specialized positioning pads integral to the side boxes of the drilling rig to facilitate the connection of the center drill floor of the drilling rig to the side boxes of the rig. A preferred embodiment of the present invention may also utilize a specialized positioning dolly and an adjustable fifth-wheel truck connection for transporting the mast to the drill site, assembling the mast sections together, and positioning the mast for connection to the drill floor of the rig. The result is a unique drilling rig design and sequence for assembly that significantly reduces the time required to transport the rig from location to location and to assemble the rig at the drill site.

Claims

1. A transportable drilling rig comprising:

a first side box comprising one or more positioning pads, each positioning pad comprising a plurality of positioning cylinders capable of moving the side box in the horizontal and vertical directions;

a second side box comprising one or more positioning pads, each positioning pad comprising a plurality of positioning cylinders capable of moving the side box in the horizontal and vertical directions;

a drill floor;

a drilling rig mast.

2. The transportable drilling rig of claim 1 wherein the first side box and the second side box comprise a plurality of positioning pads.

3. The transportable drilling rig of claim 2 wherein the first side box and the second side box further comprise a telescoping diagonal brace attached to each of said side boxes.

4. The transportable drilling rig of claim 2 wherein the first side box and the second side box further comprise a plurality of telescoping diagonal braces attached to each of said side boxes.

5. The transportable drilling rig of claim 3 wherein the first side box and the second side box further comprise a plurality of leg frames.

6. The transportable drilling rig of claim 5 further comprising a drill floor raising cylinder.

7. The transportable drilling rig of claim 6 wherein the first side box and the second side box further comprise a plurality of drill floor raising cylinders.

8. The transportable drilling rig of claim 7 further comprising a mast raising cylinder.

9. The transportable drilling rig of claim 7 further comprising a plurality of mast raising cylinders.

10. The transportable drilling rig of claim 9 wherein the drill floor comprises a plurality of drill floor side boxes connected to a center drill floor section.

11. The transportable drilling rig of claim 10 further comprising:

a plurality of mating lugs attached to the drill floor side boxes;

a plurality of mating lugs attached to the center drill floor section.

12. The transportable drilling rig of claim 11 wherein the plurality of mating lugs attached to the drill floor side boxes are pinned together with the plurality of mating lugs attached to the center drill floor section.

13. The transportable drilling rig of claim 1 wherein the first side box and the second side box each have a fifth-wheel connection for connection to a truck for transport.

14. The transportable drilling rig of claim 13 wherein the first side box and the second side box are each connected to a wheeled transporter for transporting the first side box and the second side box by truck.

15. The transportable drilling rig of claim 13 wherein the first side box and the second side box are each connected to a plurality of wheeled transporters for transporting the first side box and the second side box by truck.

16. The transportable drilling rig of claim 11 wherein the positioning cylinders of the first side box and the positioning cylinders of the second side box comprise one or more vertical positioning cylinders and one or more horizontal positioning cylinders.

17. The transportable drilling rig of claim 16 wherein the vertical positioning cylinders and the horizontal positioning cylinders are operated by a portable hydraulic power unit.

18. The transportable drilling rig of claim 16 wherein the positioning cylinders are used to align the plurality of mating lugs on the drill floor side boxes with the plurality of mating lugs on the center drill floor section.

19. The transportable drilling rig of claim 1 further comprising a drawworks mounted on a wheeled trailer for transport.

20. The transportable drilling rig of claim 19 wherein the drawworks remains mounted on the wheeled trailer during drilling operations.

21. The transportable drilling rig of claim 1 wherein the drilling rig mast is connected to the drill floor from the direction of the V-door side of the transportable drilling rig.

22. The transportable drilling rig of claim 21 wherein the drilling rig mast comprises a bottom section and a top section.

23. The transportable drilling rig of claim 22 wherein the bottom section of the drilling rig mast is connected to the drill floor by a plurality of mast connecting lugs.

24. The transportable drilling rig of claim 22 wherein the drilling rig mast further comprises a lower section that is transportable by a wheeled trailer.

25. The transportable drilling rig of claim 21 wherein a section of the drilling rig mast is transported to a drill site with a top drive installed prior to transport to the drill site.

26. The transportable drilling rig of claim 21 wherein a section of the drilling rig mast is transported to the drill site with a drill line spooler installed prior to transport to the drill site.

27. The transportable drilling rig of claim 21 wherein a section of the drilling rig mast is transported to the drill site with a traveling block installed prior to transport to the drill site.

28. The transportable drilling rig of claim 21 wherein a section of the drilling rig mast is transported to the drill site with a crown block installed prior to transport to the drill site.

29. The transportable drilling rig of claim 26 wherein drill line is spooled around the drill line spooler prior to transport to the drill site.

30. The transportable drilling rig of claim 22 wherein the top section of the drilling rig mast is connected to a truck and to a positioning dolly for transport to a drill site.

31. The transportable drilling rig of claim 30 wherein the positioning dolly has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

32. The transportable drilling rig of claim 30 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

33. The transportable drilling rig of claim 32 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

34. The transportable drilling rig of claim 24 wherein the top section of the drilling rig mast is connected to the lower section of the drilling rig mast by a plurality of mast connecting lugs.

35. The transportable drilling rig of claim 34 wherein the connected top section and lower section of the drilling rig mast is connected to the bottom section of the drilling rig mast.

36. The transportable drilling rig of claim 1 wherein the drilling rig mast is connected to the drill floor from the direction of the drawworks side of the transportable drilling rig.

37. The transportable drilling rig of claim 36 wherein the drilling rig mast comprises a lower section and a top section.

38. The transportable drilling rig of claim 37 wherein the lower section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to a drill site.

39. The transportable drilling rig of claim 38 wherein the lower section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

40. The transportable drilling rig of claim 39 wherein the fifth-wheel connection comprises a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

41. The transportable drilling rig of claim 38 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

42. The transportable drilling rig of claim 37 wherein a section of the drilling rig mast is transported to the drill site with a top drive installed prior to transport to the drill site.

43. The transportable drilling rig of claim 37 wherein a section of the drilling rig mast is transported to the drill site with a drill line spooler installed prior to transport to the drill site.

44. The transportable drilling rig of claim 37 wherein a section of the drilling rig mast is transported to the drill site with a traveling block installed prior to transport to the drill site.

45. The transportable drilling rig of claim 37 wherein the top section of the drilling rig mast is transported to the drill site with a crown block installed prior to transport to the drill site.

46. The transportable drilling rig of claim 44 wherein drill line is spooled around the drill line spooler prior to transport to the drill site.

47. The transportable drilling rig of claim 37 wherein the top section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to a drill site.

48. The transportable drilling rig of claim 47 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

49. The transportable drilling rig of claim 48 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

50. The transportable drilling rig of claim 49 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

51. The transportable drilling rig of claim 37 wherein the top section of the drilling rig mast is connected to the lower section of the drilling rig mast by a plurality of mast connecting lugs.

52. The transportable drilling rig of claim 51 wherein the connected top section and lower section of the drilling rig mast is connected to the drill floor.

53. The transportable drilling rig of claim 1 wherein the drilling rig mast is raised to an operating position by one or more mast raising cylinders.

54. The transportable drilling rig of claim 1 wherein the drilling rig mast is raised to an operating position by a plurality of mast raising cylinders.

55. The transportable drilling rig of claim 54 wherein the plurality of mast raising cylinders are hydraulically operated.

56. The transportable drilling rig of claim 54 wherein a plurality of mast support legs secure the drilling rig mast in the operating position.

57. The transportable drilling rig of claim 1 wherein the drill floor is raised to an elevated position by one or more drill floor raising cylinders.

58. The transportable drilling rig of claim 1 wherein the drill floor is raised to an elevated position by a plurality of drill floor raising cylinders.

59. The transportable drilling rig of claim 58 wherein the plurality of drill floor raising cylinders are hydraulically operated.

60. The transportable drilling rig of claim 58 wherein a plurality of front leg frames and a plurality of rear leg frames support the drill floor in the elevated position.

61. The transportable drilling rig of claim 58 wherein one or more telescoping diagonal braces secure the drill floor in the elevated position.

62. The transportable drilling rig of claim 58 wherein a plurality of telescoping diagonal braces secure the drill floor in the elevated position.

63. The transportable drilling rig of claim 62 wherein the plurality of telescoping diagonal braces comprise a plurality of concentric cylinders that telescope inwardly as the drill floor is raised to an elevated position.

64. The transportable drilling rig of claim 63 wherein the plurality of telescoping diagonal braces are in an extended position prior to the drill floor being raised to the elevated position.

65. The transportable drilling rig of claim 64 further comprising a plurality of mating lugs attached to the concentric cylinders of the telescoping diagonal braces.

66. The transportable drilling rig of claim 65 wherein the plurality of mating lugs on the concentric cylinders of the telescoping diagonal braces are pinned together to secure the telescoping diagonal braces in a position whereby the drill floor is secured in the elevated position.

356. The transportable drilling rig of claim 1 further comprising a drawworks mounted on the drill floor.

357. The transportable drilling rig of claim 22 wherein a section of the drilling rig mast is transported to the drill site on a trailer.

358. The transportable drilling rig of claim 357 wherein the trailer has a plurality of positioning cylinders capable of moving the section of the drilling rig mast in the horizontal and vertical directions.

67. A transportable drilling rig comprising:

a first side box comprising one or more positioning pads, each positioning pad comprising a plurality of positioning cylinders capable of moving the side box in the horizontal and vertical directions;

wherein the first side box comprises a base side box, a drill floor side box, one or more telescoping diagonal braces, and a plurality of leg frames;

wherein the first side box further comprises a fifth-wheel connection for connection to a truck on one end of the first side box and one or more connection points for connecting the first side box to one or more wheeled transporters on the opposite end of the first side box;

a second side box comprising one or more positioning pads, each positioning pad comprising a plurality of positioning cylinders capable of moving the side box in the horizontal and vertical directions;

wherein the second side box comprises a base side box, a drill floor side box, one or more telescoping diagonal braces, and a plurality of leg frames;

wherein the second side box further comprises a fifth-wheel connection for connection to a truck on one end of the second side box and one or more connection points for connecting the second side box to one or more wheeled transporters on the opposite end of the second side box;

a drawworks;

a drill floor comprising a center drill floor section connected to the drill floor side boxes of the first side box and the second side box;

a drilling rig mast.

68. The transportable drilling rig of claim 67 further comprising a drill floor raising cylinder.

69. The transportable drilling rig of claim 67 wherein the first side box and the second side box further comprise one or more drill floor raising cylinders.

70. The transportable drilling rig of claim 67 further comprising a mast raising cylinder.

71. The transportable drilling rig of claim 67 wherein the first side box and the second side box further comprise one or more mast raising cylinders.

72. The transportable drilling rig of claim 67 wherein the positioning cylinders of the first side box and the positioning cylinders of the second side box comprise one or more vertical positioning cylinders and one or more horizontal positioning cylinders.

73. The transportable drilling rig of claim 67 wherein the drilling rig mast is connected to the drill floor from the direction of the V-door side of the transportable drilling rig.

74. The transportable drilling rig of claim 73 wherein the drilling rig mast comprises a bottom section and a top section.

75. The transportable drilling rig of claim 74 wherein the drilling rig mast further comprises a lower section that is transportable by a wheeled trailer.

76. The transportable drilling rig of claim 74 wherein the top section of the drilling rig mast is connected to a truck and to a positioning dolly for transport to a drill site.

77. The transportable drilling rig of claim 76 wherein the positioning dolly has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

78. The transportable drilling rig of claim 76 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

79. The transportable drilling rig of claim 78 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

80. The transportable drilling rig of claim 67 wherein the drilling rig mast is connected to the drill floor from the direction of the drawworks side of the transportable drilling rig.

81. The transportable drilling rig of claim 80 wherein the drilling rig mast comprises a lower section and a top section.

82. The transportable drilling rig of claim 81 wherein the lower section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to a drill site.

83. The transportable drilling rig of claim 82 wherein the lower section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

84. The transportable drilling rig of claim 83 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

85. The transportable drilling rig of claim 82 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

86. The transportable drilling rig of claim 81 wherein the top section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to a drill site.

87. The transportable drilling rig of claim 86 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

88. The transportable drilling rig of claim 87 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

89. The transportable drilling rig of claim 86 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

90. The transportable drilling rig of claim 67 wherein the drilling rig mast is raised to an operating position by a mast raising cylinder.

91. The transportable drilling rig of claim 67 wherein the drilling rig mast is raised to an operating position by a plurality of mast raising cylinders.

92. The transportable drilling rig of claim 91 wherein a plurality of mast support legs secure the drilling rig mast in the operating position.

93. The transportable drilling rig of claim 67 wherein the drill floor is raised to an elevated position by a drill floor raising cylinder.

94. The transportable drilling rig of claim 67 wherein the drill floor is raised to an elevated position by a plurality of drill floor raising cylinders.

95. The transportable drilling rig of claim 94 wherein a plurality of front leg frames and a plurality of rear leg frames support the drill floor in the elevated position.

96. The transportable drilling rig of claim 94 wherein a plurality of telescoping diagonal braces secure the drill floor in the elevated position.

97. A transportable drilling rig comprising:

a first side box comprising one or more positioning pads, each positioning pad comprising a plurality of positioning cylinders capable of moving the side box in the horizontal and vertical directions;

wherein the first side box comprises a base side box, a drill floor side box, one or more telescoping diagonal braces, and a plurality of leg frames;

wherein the first side box further comprises a fifth-wheel connection for connection to a truck on one end of the first side box and one or more connection points for connecting the first side box to one or more wheeled transporters on the opposite end of the first side box;

a second side box comprising one or more positioning pads, each positioning pad comprising a plurality of positioning cylinders capable of moving the side box in the horizontal and vertical directions;

wherein the second side box comprises a base side box, a drill floor side box, one or more telescoping diagonal braces, and a plurality of leg frames;

wherein the second side box further comprises a fifth-wheel connection for connection to a truck on one end of the second side box and one or more connection points for connecting the second side box to one or more wheeled transporters on the opposite end of the second side box;

a drawworks;

a drill floor comprising a center drill floor section connected to the drill floor side boxes of the first side box and the second side box;

a drilling rig mast connected to the drill floor from the V-door side of the transportable drilling rig, the drilling rig mast comprising a bottom section, a lower section, and a top section;

wherein the bottom section of the drilling rig mast is connected to the drill floor;

wherein the lower section of the drilling rig mast is transportable by a wheeled trailer;

wherein the top section of the drilling rig mast is connected to a truck and to a positioning dolly for transport to a drill site.

98. The transportable drilling rig of claim 97 wherein the first side box and the second side box further comprise one or more drill floor raising cylinders.

99. The transportable drilling rig of claim 97 wherein the first side box and the second side box further comprise one or more mast raising cylinders.

100. The transportable drilling rig of claim 97 wherein the positioning cylinders of the first side box and the positioning cylinders of the second side box comprise one or more vertical positioning cylinders and one or more horizontal positioning cylinders.

101. The transportable drilling rig of claim 100 wherein the vertical positioning cylinders and the horizontal positioning cylinders are operated by a portable hydraulic power unit.

102. The transportable drilling rig of claim 97 wherein a lower section of the drilling rig mast is transported to the drill site with a top drive installed prior to transport to the drill site.

103. The transportable drilling rig of claim 97 wherein a section of the drilling rig mast is transported to the drill site with a drill line spooler installed prior to transport to the drill site.

104. The transportable drilling rig of claim 97 wherein a section of the drilling rig mast is transported to the drill site with a traveling block installed prior to transport to the drill site.

105. The transportable drilling rig of claim 97 wherein a section of the drilling rig mast is transported to the drill site with a crown block installed prior to transport to the drill site.

106. The transportable drilling rig of claim 103 wherein drill line is spooled around the drill line spooler prior to transport to the drill site.

107. The transportable drilling rig of claim 97 wherein the positioning dolly has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

108. The transportable drilling rig of claim 97 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

109. The transportable drilling rig of claim 108 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

110. The transportable drilling rig of claim 97 wherein the top section of the drilling rig mast is connected to the lower section of the drilling rig mast by a plurality of mast connecting lugs.

111. The transportable drilling rig of claim 110 wherein the connected top section and lower section of the drilling rig mast is connected to the bottom section of the drilling rig mast.

112. The transportable drilling rig of claim 97 wherein the drilling rig mast is raised to an operating position by a mast raising cylinder.

113. The transportable drilling rig of claim 97 wherein the drilling rig mast is raised to an operating position by a plurality of mast raising cylinders.

114. The transportable drilling rig of claim 113 wherein a plurality of mast support legs secure the drilling rig mast in the operating position.

115. The transportable drilling rig of claim 97 wherein the drill floor is raised to an elevated position by a drill floor raising cylinder.

116. The transportable drilling rig of claim 97 wherein the drill floor is raised to an elevated position by a plurality of drill floor raising cylinders.

117. The transportable drilling rig of claim 116 wherein a plurality of front leg frames and a plurality of rear leg frames support the drill floor in the elevated position.

118. The transportable drilling rig of claim 117 wherein a plurality of telescoping diagonal braces secure the drill floor in the elevated position.

119. A transportable drilling rig comprising:

a first side box comprising one or more positioning pads, each positioning pad comprising a plurality of positioning cylinders capable of moving the side box in the horizontal and vertical directions;

wherein the first side box comprises a base side box, a drill floor side box, one or more telescoping diagonal braces, and a plurality of leg frames;

wherein the first side box further comprises a fifth-wheel connection for connection to a truck on one end of the first side box and one or more connection points for connecting the first side box to one or more wheeled transporters on the opposite end of the first side box;

a second side box comprising one or more positioning pads, each positioning pad comprising a plurality of positioning cylinders capable of moving the side box in the horizontal and vertical directions;

wherein the second side box comprises a base side box, a drill floor side box, one or more telescoping diagonal braces, and a plurality of leg frames;

wherein the second side box further comprises a fifth-wheel connection for connection to a truck on one end of the second side box and one or more connection points for connecting the second side box to one or more wheeled transporters on the opposite end of the second side box;

a drawworks;

a drill floor comprising a center drill floor section connected to the drill floor side boxes of the first side box and the second side box;

a drilling rig mast connected to the drill floor from the drawworks side of the transportable drilling rig, the drilling rig mast comprising a lower section and a top section;

wherein the lower section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to a drill site;

wherein the top section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to the drill site.

120. The transportable drilling rig of claim 119 further comprising a drill floor raising cylinder.

121. The transportable drilling rig of claim 119 wherein the first side box and the second side box further comprise one or more drill floor raising cylinders.

122. The transportable drilling rig of claim 119 further comprising one or more mast raising cylinders.

123. The transportable drilling rig of claim 119 wherein the first side box and the second side box further comprise one or more mast raising cylinders.

124. The transportable drilling rig of claim 119 wherein the positioning cylinders of the first side box and the positioning cylinders of the second side box comprise one or more vertical positioning cylinders and one or more horizontal positioning cylinders.

125. The transportable drilling rig of claim 124 wherein the vertical positioning cylinders and the horizontal positioning cylinders are operated by a portable hydraulic power unit.

126. The transportable drilling rig of claim 119 wherein the lower section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

127. The transportable drilling rig of claim 126 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

128. The transportable drilling rig of claim 119 wherein the wheeled dolly connected to the lower section of the drilling rig mast is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

129. The transportable drilling rig of claim 119 wherein the lower section of the drilling rig mast is transported to the drill site with a top drive installed prior to transport to the drill site.

130. The transportable drilling rig of claim 119 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

131. The transportable drilling rig of claim 130 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

132. The transportable drilling rig of claim 119 wherein the wheeled dolly connected to the top section of the drilling rig mast is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

133. The transportable drilling rig of claim 119 wherein the top section of the drilling rig mast is transported to the drill site with a drill line spooler installed prior to transport to the drill site.

134. The transportable drilling rig of claim 119 wherein the top section of the drilling rig mast is transported to the drill site with a traveling block installed prior to transport to the drill site.

135. The transportable drilling rig of claim 119 wherein the top section of the drilling rig mast is transported to the drill site with a crown block installed prior to transport to the drill site.

136. The transportable drilling rig of claim 133 wherein drill line is spooled around the drill line spooler prior to transport to the drill site.

137. The transportable drilling rig of claim 119 wherein the top section of the drilling rig mast is connected to the lower section of the drilling rig mast.

138. The transportable drilling rig of claim 137 wherein the connected top section and lower section of the drilling rig mast is connected to the drill floor.

139. The transportable drilling rig of claim 119 wherein the drilling rig mast is raised to an operating position by a mast raising cylinder.

140. The transportable drilling rig of claim 119 wherein the drilling rig mast is raised to an operating position by a plurality of mast raising cylinders.

141. The transportable drilling rig of claim 140 wherein a plurality of mast support legs secure the drilling rig mast in the operating position.

142. The transportable drilling rig of claim 119 wherein the drill floor is raised to an elevated position by a drill floor raising cylinder.

143. The transportable drilling rig of claim 119 wherein the drill floor is raised to an elevated position by a plurality of drill floor raising cylinders.

144. The transportable drilling rig of claim 143 wherein a plurality of front leg frames and a plurality of rear leg frames support the drill floor in the elevated position.

145. The transportable drilling rig of claim 143 wherein a plurality of telescoping diagonal braces secure the drill floor in the elevated position.

146. A transportable drilling rig comprising:

a first side box comprising a drill floor side box;

a second side box comprising a drill floor side box;

a drill floor comprising a center drill floor section connected to the drill floor side boxes of the first side box and the second side box;

wherein the center drill floor section is connected to the drill floor side boxes by a plurality of structural connectors, the structural connectors comprising;

a support plate with a plurality of fixed support members extending therethrough, the fixed support members comprising contoured tops and side walls;

a mating lug assembly comprising a plurality of mating lug plates, wherein the mating lug plates have a plurality of mating lugs attached to each plate, the mating lugs comprising notches therein that are shaped and sized to mate with the fixed support members;

a drawworks;

a drilling rig mast.

147. The transportable drilling rig of claim 146 wherein the first side box and the second side box further comprise a base side box, one or more telescoping diagonal braces, and a plurality of leg frames

148. The transportable drilling rig of claim 146 further comprising a drill floor raising cylinder.

149. The transportable drilling rig of claim 146 wherein the first side box and the second side box further comprise one or more drill floor raising cylinders.

150. The transportable drilling rig of claim 146 further comprising a mast raising cylinder.

151. The transportable drilling rig of claim 146 wherein the first side box and the second side box further comprise one or more mast raising cylinders.

152. The transportable drilling rig of claim 146 wherein the first side box and the second side box are each skid mounted for transport by truck.

153. The transportable drilling rig of claim 152 wherein the first side box and the second side box are positioned at a drill site by a plurality of horizontal spreaders and one or more diagonal spreaders.

154. The transportable drilling rig of claim 146 wherein the center drill floor section is transported by truck to a drill site.

155. The transportable drilling rig of claim 154 wherein the center drill floor section is removed from the truck by a crane and positioned for connection to the first side box and to the second side box.

156. The transportable drilling rig of claim 146 wherein the drilling rig mast is connected to the drill floor from the direction of the V-door side of the transportable drilling rig.

157. The transportable drilling rig of claim 156 wherein the drilling rig mast comprises a bottom section, a lower section, and a top section.

158. The transportable drilling rig of claim 157 wherein the bottom section of the drilling rig mast is connected to the drill floor by a plurality of mast connecting lugs.

159. The transportable drilling rig of claim 157 wherein the lower section of the drilling rig mast is transportable by a wheeled trailer.

160. The transportable drilling rig of claim 157 wherein the top section of the drilling rig mast is connected to a truck and to a positioning dolly for transport to a drill site.

161. The transportable drilling rig of claim 160 wherein the positioning dolly has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

162. The transportable drilling rig of claim 160 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

163. The transportable drilling rig of claim 162 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

164. The transportable drilling rig of claim 157 wherein the top section of the drilling rig mast is connected to the lower section of the drilling rig mast by a plurality of mast connecting lugs.

165. The transportable drilling rig of claim 164 wherein the connected top section and lower section of the drilling rig mast is connected to the bottom section of the drilling rig mast.

166. The transportable drilling rig of claim 146 wherein the drilling rig mast is connected to the drill floor from the direction of the drawworks side of the transportable drilling rig.

167. The transportable drilling rig of claim 166 wherein the drilling rig mast comprises a lower section and a top section.

168. The transportable drilling rig of claim 167 wherein the lower section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to a drill site.

169. The transportable drilling rig of claim 168 wherein the lower section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

170. The transportable drilling rig of claim 169 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

171. The transportable drilling rig of claim 168 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

172. The transportable drilling rig of claim 167 wherein the top section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to a drill site.

173. The transportable drilling rig of claim 172 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

174. The transportable drilling rig of claim 173 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

175. The transportable drilling rig of claim 172 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

176. The transportable drilling rig of claim 167 wherein the top section of the drilling rig mast is connected to the lower section of the drilling rig mast by a plurality of mast connecting lugs.

177. The transportable drilling rig of claim 176 wherein the connected top section and lower section of the drilling rig mast is connected to the drill floor.

178. The transportable drilling rig of claim 146 wherein the drilling rig mast is raised to an operating position by a mast raising cylinder.

179. The transportable drilling rig of claim 146 wherein the drilling rig mast is raised to an operating position by a plurality of mast raising cylinders.

180. The transportable drilling rig of claim 179 wherein a plurality of mast support legs secure the drilling rig mast in the operating position.

181. The transportable drilling rig of claim 146 wherein the drill floor is raised to an elevated position by a drill floor raising cylinder.

182. The transportable drilling rig of claim 146 wherein the drill floor is raised to an elevated position by a plurality of drill floor raising cylinders.

183. The transportable drilling rig of claim 182 wherein a plurality of front leg frames and a plurality of rear leg frames support the drill floor in the elevated position.

184. The transportable drilling rig of claim 182 wherein a plurality of telescoping diagonal braces secure the drill floor in the elevated position.

185. A transportable drilling rig comprising:

a first side box comprising a drill floor side box, the drill floor side box having a support rail attached thereto;

a second side box comprising a drill floor side box, the drill floor side box having a support rail attached thereto;

a drill floor comprising a center drill floor section connected to the drill floor side boxes of the first side box and the second side box, the center drill floor section having a plurality of support rails attached thereto;

a mating block connector system comprising a plurality of mating blocks attached to the support rails of the drill floor side boxes, a plurality of mating blocks attached to the support rails of the center drill floor section, and a plurality of guide bars attached to the support rails of the drill floor side boxes;

a drilling rig mast.

186. The transportable drilling rig of claim 185 wherein the first side box and the second side box further comprise a base side box, one or more telescoping diagonal braces, and a plurality of leg frames.

187. The transportable drilling rig of claim 185 further comprising a drill floor raising cylinder.

188. The transportable drilling rig of claim 185 wherein the first side box and the second side box further comprise one or more drill floor raising cylinders.

189. The transportable drilling rig of claim 185 further comprising a mast raising cylinder.

190. The transportable drilling rig of claim 185 wherein the first side box and the second side box further comprise one or more mast raising cylinders.

191. The transportable drilling rig of claim 185 wherein the first side box and the second side box are each skid mounted for transport by truck to a drill site.

192. The transportable drilling rig of claim 185 wherein the first side box and the second side box are positioned at a drill site by one or more horizontal spreaders and one or more diagonal spreaders.

193. The transportable drilling rig of claim 185 wherein the center drill floor section is transported by truck to a drill site.

194. The transportable drilling rig of claim 193 wherein the center drill floor section is removed from the truck and slid onto the support rails attached to the drill floor side boxes.

195. The transportable drilling rig of claim 194 wherein the leading edges of the support rails attached to the drill floor side boxes are rounded and tapered downwardly.

196. The transportable drilling rig of claim 195 wherein the leading edges of the support rails attached to the center drill floor section are rounded.

197. The transportable drilling rig of claim 194 wherein the surfaces of the support rails attached to the center drill floor section are substantially horizontal and slide on the surfaces of the support rails attached to the drill floor side boxes.

198. The transportable drilling rig of claim 197 wherein contact between the surfaces of the support rails attached to the center drill floor section and the surfaces of the support rails attached to the drill floor side boxes supports the vertical load of the center drill floor section.

199. The transportable drilling rig of claim 185 wherein the guide bar is attached to the support rails of the drill floor side boxes and extends along an inwardly directed line between the plurality of mating blocks attached to the support rails.

200. The transportable drilling rig of claim 185 wherein the mating block connector system further comprises a pin connection at each mating block location.

201. The transportable drilling rig of claim 200 wherein the pin connections comprise pin lugs attached to the drill floor side boxes, pin arms attached to the pin lugs, and pin lugs attached to the center drill floor section.

202. The transportable drilling rig of claim 201 wherein the pin arms have pin holes therein for mating with pin holes in the pin lugs attached to the center drill floor section.

203. The transportable drilling rig of claim 185 wherein the support rails attached to the drill floor side boxes have two mating blocks at each mating block connection point.

204. The transportable drilling rig of claim 185 wherein the support rails attached to the center drill floor section have two mating blocks at each mating block connection point.

205. The transportable drilling rig of claim 185 wherein the drilling rig mast is connected to the drill floor from the direction of the V-door side of the transportable drilling rig.

206. The transportable drilling rig of claim 205 wherein the drilling rig mast comprises a bottom section, a lower section, and a top section.

207. The transportable drilling rig of claim 206 wherein the bottom section of the drilling rig mast is connected to the drill floor by a plurality of mast connecting lugs.

208. The transportable drilling rig of claim 206 wherein the lower section of the drilling rig mast is transportable by a wheeled trailer.

209. The transportable drilling rig of claim 206 wherein the top section of the drilling rig mast is connected to a truck and to a positioning dolly for transport to a drill site.

210. The transportable drilling rig of claim 209 wherein the positioning dolly has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

211. The transportable drilling rig of claim 209 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

212. The transportable drilling rig of claim 211 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

213. The transportable drilling rig of claim 206 wherein the top section of the drilling rig mast is connected to the lower section of the drilling rig mast by a plurality of mast connecting lugs.

214. The transportable drilling rig of claim 213 wherein the connected top section and lower section of the drilling rig mast is connected to the bottom section of the drilling rig mast.

215. The transportable drilling rig of claim 185 wherein the drilling rig mast is connected to the drill floor from the direction of the drawworks side of the transportable drilling rig.

216. The transportable drilling rig of claim 215 wherein the drilling rig mast comprises a lower section and a top section.

217. The transportable drilling rig of claim 216 wherein the lower section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to a drill site.

218. The transportable drilling rig of claim 217 wherein the lower section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

219. The transportable drilling rig of claim 218 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

220. The transportable drilling rig of claim 217 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

221. The transportable drilling rig of claim 216 wherein the top section of the drilling rig mast is connected to a truck and to a wheeled dolly for transport to a drill site.

222. The transportable drilling rig of claim 221 wherein the top section of the drilling rig mast is connected to the truck by a fifth-wheel connection.

223. The transportable drilling rig of claim 222 wherein the fifth-wheel connection has a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

224. The transportable drilling rig of claim 221 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

225. The transportable drilling rig of claim 216 wherein the top section of the drilling rig mast is connected to the lower section of the drilling rig mast by a plurality of mast connecting lugs.

226. The transportable drilling rig of claim 225 wherein the connected top section and lower section of the drilling rig mast is connected to the drill floor.

227. The transportable drilling rig of claim 185 wherein the drilling rig mast is raised to an operating position by a mast raising cylinder.

228. The transportable drilling rig of claim 185 wherein the drilling rig mast is raised to an operating position by a plurality of mast raising cylinders.

229. The transportable drilling rig of claim 228 wherein a plurality of mast support legs secure the drilling rig mast in the operating position.

230. The transportable drilling rig of claim 185 wherein the drill floor is raised to an elevated position by a drill floor raising cylinder.

231. The transportable drilling rig of claim 185 wherein the drill floor is raised to an elevated position by a plurality of drill floor raising cylinders.

232. The transportable drilling rig of claim 231 wherein a plurality of front leg frames and a plurality of rear leg frames support the drill floor in the elevated position.

233. The transportable drilling rig of claim 232 wherein one or more telescoping diagonal braces secure the drill floor in the elevated position.

234. The transportable drilling rig of claim 232 wherein a plurality of telescoping diagonal braces secure the drill floor in the elevated position.

235. A method of assembling a drilling rig at a drill site comprising:

positioning a first side box, the first side box comprising one or more positioning pads connected thereto;

positioning a center drill floor section;

aligning a plurality of connection points on the center drill floor section with a plurality of connection points on the first side box through operation of the positioning pads connected to the first side box;

connecting the center drill floor section to the first side box;

positioning a second side box, the second side box comprising one or more positioning pads connected thereto;

aligning a plurality of connection points on the center drill floor section with a plurality of connection points on the second side box through operation of the positioning pads connected to the second side box;

connecting the center drill floor section to the second side box;

connecting a drilling rig mast to the center drill floor section;

raising the drilling rig mast;

raising a drill floor to an elevated position, the drill floor comprising the drill floor side boxes connected to the center drill floor section.

236. The method of claim 235 wherein the first side box and the second side box each comprise a plurality of positioning pads.

237. The method of claim 235 further comprising connecting the first side box to a truck by a fifth-wheel connection for transport to the drill site.

238. The method of claim 237 further comprising connecting the first side box to one or more wheeled transporters for transport to the drill site.

239. The method of claim 235 further comprising transporting the center drill floor section to the drill site by truck.

240. The method of claim 235 further comprising utilizing a plurality of positioning cylinders integral to the positioning pads to move the first side box in the horizontal and vertical directions for alignment of the first side box with the center drill floor section for connection thereto.

241. The method of claim 240 further comprising connecting the center drill floor section to the first side box by pinning a plurality of mating lugs attached to the first side box together with a plurality of mating lugs attached to the center drill floor section.

242. The method of claim 235 further comprising connecting the second side box to a truck by a fifth-wheel connection for transport to the drill site.

243. The method of claim 242 further comprising connecting the second side box to one or more wheeled transporters for transport to the drill site.

244. The method of claim 235 further comprising utilizing a plurality of positioning cylinders integral to the positioning pads to move the second side box in the horizontal and vertical directions for alignment of the second side box with the center drill floor section for connection thereto.

245. The method of claim 244 further comprising connecting the center drill floor section to the second side box by pinning a plurality of mating lugs attached to the second side box together with a plurality of mating lugs attached to the center drill floor section.

246. The method of claim 235 further comprising mounting a drawworks on a wheeled trailer for transport to the drill site.

247. The method of claim 246 further comprising leaving the drawworks mounted on the wheeled trailer during drilling operations.

248. The method of claim 235 further comprising connecting the drilling rig mast to the center drill floor section from the direction of the V-door side of the drilling rig.

249. The method of claim 248 further comprising connecting a bottom section, a lower section, and a top section of the drilling rig mast together to form the drilling rig mast.

250. The method of claim 249 further comprising connecting the bottom section of the drilling rig mast to the center drill floor section by a plurality of mast connecting lugs.

251. The method of claim 249 further comprising transporting the lower section of the drilling rig mast to the drill site by a wheeled trailer.

252. The method of claim 235 further comprising transporting a section of the drilling rig mast to the drill site with a top drive installed prior to transport to the drill site.

253. The method of claim 235 further comprising transporting a section of the drilling rig mast to the drill site with a drill line spooler installed prior to transport to the drill site.

254. The method of claim 235 further comprising transporting a section of the drilling rig mast to the drill site with a traveling block installed prior to transport to the drill site.

255. The method of claim 235 further comprising transporting a section of the drilling rig mast to the drill site with a crown block installed prior to transport to the drill site.

256. The method of claim 253 further comprising spooling a drill line around the drill line spooler prior to transport to the drill site.

257. The method of claim 249 further comprising connecting the top section of the drilling rig mast to a truck and to a positioning dolly for transport to the drill site.

258. The method of claim 257 further comprising utilizing a plurality of positioning cylinders integral to the positioning dolly to move the top section of the drilling rig mast in the horizontal and vertical directions for alignment of the top section of the drilling rig mast with the lower section of the drilling rig mast for connection thereto.

259. The method of claim 257 further comprising connecting the top section of the drilling rig mast to the truck by a fifth-wheel connection.

260. The method of claim 259 further comprising utilizing a plurality of positioning cylinders integral to the fifth wheel connection to move the top section of the drilling rig mast in the horizontal and vertical directions for alignment of the top section of the drilling rig mast with the lower section of the drilling rig mast for connection thereto.

261. The method of claim 249 further comprising connecting the top section of the drilling rig mast to the lower section of the drilling rig mast.

262. The method of claim 261 further comprising connecting the connected top section and lower section of the drilling rig mast to the bottom section of the drilling rig mast.

263. The method of claim 235 further comprising connecting the drilling rig mast to the center drill floor section from the direction of the drawworks side of the drilling rig.

264. The method of claim 263 further comprising connecting a lower section and a top section of the drilling rig mast together to form the drilling rig mast.

265. The method of claim 264 further comprising connecting the lower section of the drilling rig mast to a truck and to a wheeled dolly for transport to the drill site.

266. The method of claim 265 further comprising connecting the lower section of the drilling rig mast to the truck by a fifth-wheel connection.

267. The method of claim 266 further comprising utilizing a plurality of positioning cylinders integral to the fifth wheel connection to move the lower section of the drilling rig mast in the horizontal and vertical directions for alignment of the lower section of the drilling rig mast with the top section of the drilling rig mast for connection thereto.

268. The method of claim 265 further comprising utilizing a plurality of positioning cylinders integral to the wheeled dolly to move the lower section of the drilling rig mast in the horizontal and vertical directions for alignment of the lower section of the drilling rig mast with the top section of the drilling rig mast for connection thereto.

269. The method of claim 263 further comprising transporting a section of the drilling rig mast to the drill site with a top drive installed prior to transport to the drill site.

270. The method of claim 264 further comprising connecting the top section of the drilling rig mast to a truck and to a wheeled dolly for transport to the drill site.

271. The method of claim 270 further comprising connecting the top section of the drilling rig mast to the truck by a fifth-wheel connection.

272. The method of claim 271 further comprising utilizing a plurality of positioning cylinders integral to the fifth wheel connection to move the top section of the drilling rig mast in the horizontal and vertical directions for alignment of the top section of the drilling rig mast with the lower section of the drilling rig mast for connection thereto.

273. The method of claim 270 further comprising utilizing a plurality of positioning cylinders integral to the wheeled dolly to move the top section of the drilling rig mast in the horizontal and vertical directions for alignment of the top section of the drilling rig mast with the lower section of the drilling rig mast for connection thereto.

274. The method of claim 263 further comprising transporting a section of the drilling rig mast to the drill site with a drill line spooler installed prior to transport to the drill site.

275. The method of claim 263 further comprising transporting a section of the drilling rig mast to the drill site with a traveling block installed prior to transport to the drill site.

276. The method of claim 263 further comprising transporting a section of the drilling rig mast to the drill site with a crown block installed prior to transport to the drill site.

277. The method of claim 274 further comprising spooling drill line around the drill line spooler prior to transport to the drill site.

278. The method of claim 264 further comprising connecting the top section of the drilling rig mast to the lower section of the drilling rig mast by a plurality of mast connecting lugs.

279. The method of claim 278 further comprising connecting the connected top section and lower section of the drilling rig mast to the center drill floor section.

280. The method of claim 235 further comprising raising the drilling rig mast by a mast raising cylinder.

281. The method of claim 235 further comprising raising the drilling rig mast by a plurality of mast raising cylinders.

282. The method of claim 235 further comprising securing the drilling rig mast in the operating position with a plurality of mast support legs.

283. The method of claim 235 further comprising raising the center drill floor section to an elevated position by a drill floor raising cylinder.

284. The method of claim 235 further comprising raising the center drill floor section to an elevated position by a plurality of drill floor raising cylinders.

285. The method of claim 235 further comprising supporting the center drill floor section in the elevated position with a plurality of front leg frames and a plurality of rear leg frames.

286. The method of claim 235 further comprising securing the center drill floor section in the elevated position with a telescoping diagonal brace.

287. The method of claim 235 further comprising securing the center drill floor section in the elevated position with a plurality of telescoping diagonal braces.

288. The method of claim 287 whereby the telescoping diagonal braces telescope inwardly as the drill floor is raised to an elevated position.

289. The method of claim 287 further comprising securing the telescoping diagonal braces in a retracted position such that the telescoping diagonal braces secure the drill floor in the elevated position.

290. A method of assembling a drilling rig at a drill site comprising:

positioning a first side box, the first side box having a drill floor side box;

positioning a second side box, the second side box having a drill floor side box;

positioning a center drill floor section;

connecting the center drill floor section to the drill floor side boxes of the first side box and the second side box to form a drill floor;

whereby the center drill floor section is connected to the drill floor side boxes by a plurality of structural connectors, the structural connectors comprising;

a support plate with a plurality of fixed support members extending therethrough, the fixed support members comprising contoured tops and side walls;

a mating lug assembly comprising a plurality of mating lug plates, wherein the mating lug plates have a plurality of mating lugs attached to each plate, the mating lugs comprising notches therein that are shaped and sized to mate with the fixed support members;

connecting a drilling rig mast to the center drill floor section;

raising the drilling rig mast;

raising the drill floor to an elevated position.

291. The method of claim 290 further comprising transporting the first side box and the second side box to the drill site by truck.

292. The method of claim 290 further comprising positioning the first side box and the second side box at the drill site by a plurality of horizontal spreaders and one or more diagonal spreaders.

293. The method of claim 290 further comprising transporting the center drill floor section to the drill site by truck.

294. The method of claim 293 further comprising removing the center drill floor section from the truck by a crane, wherein the crane is used to position the center drill floor section for connection to the drill floor side boxes of the first side box and the second side box.

295. The method of claim 290 further comprising connecting the drilling rig mast to the center drill floor section from the direction of the V-door side of the drilling rig.

296. The method of claim 295 further comprising providing the drilling rig mast with a bottom section, a lower section, and a top section.

297. The method of claim 296 further comprising connecting the bottom section of the drilling rig mast to the center drill floor section.

298. The method of claim 296 further comprising transporting the lower section of the drilling rig mast to the drill site by a wheeled trailer.

299. The method of claim 296 further comprising transporting the top section of the drilling rig mast to the drill site by a truck and a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

300. The method of claim 299 further comprising connecting the top section of the drilling rig mast to the truck by a fifth-wheel connection, the fifth-wheel connection comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

301. The method of claim 300 further comprising positioning the top section of the drilling rig mast and the lower section of the drilling rig mast for connection by use of the positioning cylinders of the positioning dolly and the positioning cylinders of the fifth-wheel connection.

302. The method of claim 301 further comprising connecting the top section of the drilling rig mast to the lower section of the drilling rig mast.

303. The method of claim 302 further comprising connecting the connected top section and lower section of the drilling rig mast to the bottom section of the drilling rig mast.

304. The method of claim 290 further comprising connecting the drilling rig mast to the center drill floor section from the direction of the drawworks side of the drilling rig.

305. The method of claim 304 further comprising providing the drilling rig mast with a lower section and a top section.

306. The method of claim 305 further comprising connecting the lower section of the drilling rig mast to a truck and to a wheeled dolly for transport to the drill site.

307. The method of claim 306 further comprising connecting the lower section of the drilling rig mast to the truck by a fifth-wheel connection, the fifth-wheel connection comprising a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

308. The method of claim 306 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

309. The method of claim 305 further comprising connecting the top section of the drilling rig mast to a truck and to a wheeled dolly for transport to the drill site.

310. The method of claim 309 further comprising connecting the top section of the drilling rig mast to the truck by a fifth-wheel connection, the fifth-wheel connection comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

311. The method of claim 309 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

312. The method of claim 311 further comprising positioning the top section of the drilling rig mast and the lower section of the drilling rig mast for connection by use of the positioning cylinders of the positioning dolly and the positioning cylinders of the fifth-wheel connection.

313. The method of claim 305 further comprising connecting the top section of the drilling rig mast to the lower section of the drilling rig mast with a plurality of mast connecting lugs.

314. The method of claim 313 further comprising connecting the connected top section and lower section of the drilling rig mast to the center drill floor section.

315. The method of claim 290 further comprising raising the drilling rig mast to an operating position by a mast raising cylinder.

316. The method of claim 290 further comprising raising the drilling rig mast to an operating position by a plurality of mast raising cylinders.

317. The method of claim 316 further comprising securing the drilling rig mast in the operating position by a plurality of mast support legs.

318. The method of claim 290 further comprising raising the drill floor to an elevated position by a drill floor raising cylinder.

319. The method of claim 290 further comprising raising the drill floor to an elevated position by a plurality of drill floor raising cylinders.

320. The method of claim 319 further comprising supporting the drill floor in the elevated position with a plurality of front leg frames and a plurality of rear leg frames.

321. The method of claim 320 further comprising securing the drill floor in the elevated position with a telescoping diagonal brace.

322. The method of claim 320 further comprising securing the drill floor in the elevated position with a plurality of telescoping diagonal braces.

323. A method of assembling a drilling rig at a drill site comprising:

positioning a first side box, the first side box having a drill floor side box comprising a support rail attached thereto;

positioning a second side box, the second side box having a drill floor side box comprising a support rail attached thereto;

positioning a center drill floor section for connection to the drill floor side boxes of the first side box and the second side box to form a drill floor, the center drill floor section comprising a plurality of support rails attached thereto;

skidding the plurality of support rails attached to the center drill floor section into engagement with the support rails attached to the drill floor side boxes of the first and second side boxes;

whereby the skidding of the support rails into engagement is facilitated by a mating block connector system, the mating block connector system comprising;

a plurality of mating blocks attached to the support rails of the drill floor side boxes;

a plurality of mating blocks attached to the support rails of the center drill floor section;

a plurality of guide bars attached to the support rails of the drill floor side boxes;

connecting a drilling rig mast to the center drill floor section;

raising the drilling rig mast to an operating position;

raising the drill floor to an elevated position.

324. The method of claim 323 further comprising transporting the first side box and the second side box to the drill site by truck.

325. The method of claim 323 further comprising positioning the first side box and the second side box at the drill site by a plurality of horizontal spreaders and one or more diagonal spreaders.

326. The method of claim 323 further comprising transporting the center drill floor section to the drill site by truck.

327. The method of claim 326 further comprising removing the center drill floor section from the truck by skidding the center drill floor section off of the truck.

328. The method of claim 323 further comprising connecting the drilling rig mast to the drill floor from the direction of the V-door side of the drilling rig.

329. The method of claim 328 further comprising providing the drilling rig mast with a bottom section, a lower section, and a top section.

330. The method of claim 329 further comprising connecting the bottom section of the drilling rig mast to the drill floor.

331. The method of claim 329 further comprising transporting the lower section of the drilling rig mast to the drill site by a wheeled trailer.

332. The method of claim 329 further comprising transporting the top section of the drilling rig mast to the drill site by a truck and a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

333. The method of claim 332 further comprising connecting the top section of the drilling rig mast to the truck by a fifth-wheel connection, the fifth-wheel connection comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

334. The method of claim 333 further comprising positioning the top section of the drilling rig mast and the lower section of the drilling rig mast for connection by use of the positioning cylinders of the positioning dolly and the positioning cylinders of the fifth-wheel connection.

335. The method of claim 334 further comprising connecting the top section of the drilling rig mast to the lower section of the drilling rig mast.

336. The method of claim 335 further comprising connecting the connected top section and lower section of the drilling rig mast to the bottom section of the drilling rig mast.

337. The method of claim 323 whereby the drilling rig mast is connected to the center drill floor section from the direction of the drawworks side of the drilling rig.

338. The method of claim 337 further comprising providing the drilling rig mast with a lower section and a top section.

339. The method of claim 338 further comprising connecting the lower section of the drilling rig mast to a truck and to a wheeled dolly for transport to the drill site.

340. The method of claim 339 further comprising connecting the lower section of the drilling rig mast to the truck by a fifth-wheel connection, the fifth-wheel connection comprising a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

341. The method of claim 339 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the lower section of the drilling rig mast in the horizontal and vertical directions.

342. The method of claim 338 further comprising connecting the top section of the drilling rig mast to a truck and to a wheeled dolly for transport to the drill site.

343. The method of claim 342 further comprising connecting the top section of the drilling rig mast to the truck by a fifth-wheel connection, the fifth-wheel connection comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

344. The method of claim 342 wherein the wheeled dolly is a positioning dolly, the positioning dolly comprising a plurality of positioning cylinders capable of moving the top section of the drilling rig mast in the horizontal and vertical directions.

345. The method of claim 344 further comprising positioning the top section of the drilling rig mast and the lower section of the drilling rig mast for connection by use of the positioning cylinders of the positioning dolly and the positioning cylinders of the fifth-wheel connection.

346. The method of claim 345 further comprising connecting the top section of the drilling rig mast to the lower section of the drilling rig mast.

347. The method of claim 346 further comprising connecting the connected top section and lower section of the drilling rig mast to the center drill floor section.

348. The method of claim 323 further comprising raising the drilling rig mast to an operating position by a mast raising cylinder.

349. The method of claim 323 further comprising raising the drilling rig mast to an operating position by a plurality of mast raising cylinders.

350. The method of claim 349 further comprising securing the drilling rig mast in the operating position by a plurality of mast support legs.

351. The method of claim 323 further comprising raising the drill floor to an elevated position by a drill floor raising cylinder.

352. The method of claim 323 further comprising raising the drill floor to an elevated position by a plurality of drill floor raising cylinders.

353. The method of claim 352 further comprising supporting the drill floor in the elevated position with a plurality of front leg frames and a plurality of rear leg frames.

354. The method of claim 353 further comprising securing the drill floor in the elevated position with a telescoping diagonal brace.

355. The method of claim 353 further comprising securing the drill floor in the elevated position with a plurality of telescoping diagonal braces.