Adjustable rotating guides for spider or elevator

• US 20040251055A1
• Filed: 03/05/2004
• Published: 12/16/2004
• Est. Priority Date: 07/29/2002
• Status: Active Grant

• Current Assignee: Weatherford Technology Holdings, LLC (Weatherford International PLC)
• Original Assignee: Weatherford/Lamb Incorporated (Weatherford International PLC)
• Inventors: Heidecke, Karsten, Shahin, David
• Granted Patent: US 6,994,176 B2
• Time in Patent Office: Days
• US Class Current: 175/423
• CPC Class Codes: E21B 19/07 Slip-type elevators
• CPC Class Codes: E21B 19/102 using rollers or spherical balls as load gripping elements
• CPC Class Codes: E21B 19/24 Guiding or centralising devices for drilling rods or pipes
• CPC Class Codes: E21B 7/20 Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Abstract

The present invention provides a method and apparatus for gripping one or more tubulars, which may include casing, during a tubular handling operation, drilling operation, and/or drilling with casing operation. The gripping apparatus comprises a housing having a bore extending therethrough and one or more gripping members which extend radially within the bore to grippingly engage a tubular or casing when activated. Adjustable guides attached to a portion of the gripping apparatus facilitate rotational movement of the casing during the drilling operation when the gripping members of the gripping apparatus are deactivated.

Claims

1. A gripping apparatus for supporting a tubular comprising:

a housing having a bore extending therethrough;

one or more gripping members moveable radially within the bore to grippingly engage the tubular; and

one or more guide rolling members to facilitate movement of the tubular within the housing.

2. The gripping apparatus of claim 1, wherein the one or more guide rolling members facilitate rotational movement of the tubular within the housing.

3. The gripping apparatus of claim 1, wherein the one or more guide rolling members are positioned in a manner capable of centering the tubular.

4. The gripping apparatus of claim 1, wherein the one or more guide rolling members are adjustable to accommodate tubulars of different sizes.

5. The gripping apparatus of claim 1, wherein the one or more guide rolling members are oriented radially inward toward the tubular with respect to the housing.

6. The gripping apparatus of claim 1, wherein the one or more guide rolling members are extendable further radially inward toward the tubular than the one or more gripping members.

7. The gripping apparatus of claim 1, wherein the one or more guide rolling members comprises:

a clevis having a shaft at one end;

a pin for coupling a roller to the clevis; and

a mounting assembly, wherein the shaft is adjustable within the mounting assembly.

8. The gripping apparatus of claim 7, wherein the shaft is adjustable within the mounting assembly by fluid pressure.

9. The gripping apparatus of claim 7, wherein the clevis is disposed parallel to the rotational axis of the tubular.

10. The gripping apparatus of claim 1, wherein the one or more guide rolling members are rollable along the outer diameter of the tubular.

11. The gripping apparatus of claim 1, wherein an axis of the one or more guide rolling members is substantially parallel to an axis of the housing.

12. The gripping apparatus of claim 1, wherein an axis of the one or more guide rolling members is substantially parallel to an axis of the tubular.

13. The gripping apparatus of claim 1, wherein the one or more guide rolling members are adjustable from a first position wherein an axis of the one or more guide rolling members is substantially parallel to an axis of the tubular to a second position wherein the axis of the one or more guide rolling members is not substantially parallel to the axis of the tubular.

14. The gripping apparatus of claim 1, wherein an axis of the one or more guide rolling members is approximately equidistant from an axis of the housing.

15. The gripping apparatus of claim 1, wherein the tubular is casing.

16. A method of drilling with casing into a formation, comprising:

providing a gripping apparatus having an opening therethrough and one or more gripping members disposed therein, the gripping apparatus comprising one or more guide rolling members disposed within the opening;

adjusting the one or more guide rolling members radially within the opening;

lowering a first casing having an earth removal member operatively attached to its lower end into the formation while rotating the first casing; and

contacting the first casing with the one or more guide rolling members while lowering the first casing.

17. The method of claim 16, wherein lowering the first casing comprises rotating the first casing.

18. The method of claim 16, wherein adjusting the one or more guide rolling members radially within the opening comprises adjusting the axis of the one or more guide rolling members radially to accommodate misalignment between an axis of the first casing and an axis of the opening.

19. The method of claim 16, further comprising:

drilling the first casing to a desired depth within the formation; and

activating the gripping apparatus to cause the one or more gripping members to grippingly engage an outer diameter of the first casing.

20. The method of claim 16, further comprising:

drilling the first casing to a desired depth within the formation; and

activating the gripping apparatus to inhibit axial movement of the first casing.

21. The method of claim 20, further comprising:

connecting a second casing to the first casing;

lowering the second casing into the formation while rotating the second casing; and

contacting the second casing with the one or guide rolling members while rotating the second casing.

22. The method of claim 16, wherein the one or more guide rolling members roll along the outer diameter of the first casing while the first casing is rotating.

23. The method of claim 16, wherein adjusting the one or more guide rolling members further comprises pivoting the one or more guide rolling members from rollable along an outer diameter of the first casing while the first casing is rotating to rollable along the outer diameter of the first casing while the first casing is moving axially within the gripping apparatus.

24. The method of claim 16, wherein adjusting the one or more guide rolling members further comprises pivoting the one or more guide rolling members from a position wherein the axis of the one or more guide rolling members is parallel to the axis of the first casing to a position wherein the axis of the one or more guide rolling members is not parallel to the axis of the first casing.

25. The method of claim 16, further comprising contacting the first casing with the one or more guide rolling members while lowering the first casing.

26. The method of claim 25, wherein the rotating and lowering the first casing is simultaneous.

27. The method of claim 16, wherein extending the one or more guide rolling members comprises calculating the extension of the one or more guide rolling members necessary to contact an outer diameter of the first casing string.