CT drilling rig
First Claim
1. An apparatus for disposal on a platform for introducing into a well a bottomhole assembly and an umbilical, comprising:
- a plurality of modular structures stacked one on another with adjacent modular structures being releaseably attached, said stacked module structures forming a vertical open area for deploying the bottomhole assembly, said stacked modular structures having an opening for accessing at least a portion of said vertical open area.
1 Assignment
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Accused Products
Abstract
A drilling rig includes a tower, a stabilizer for lifting/lowering an injector and BOP stack, and a powered arm adapted to manipulate BHA segments. The tower includes a plurality of interlocking modules and is mounted on a two perpendicularly aligned skids. The tower is also provided with an opening that enables the side loading of equipment. The preferred rig includes one module adapted to support a stabilizer that includes hydraulic lifts that can raise the injector and BOP stack off the wellhead. The stabilizer also accommodates the thermal expansion of the BOP stack by rising and lowering the stack during well servicing operations. The powered arm attaches to the tower and includes an articulated gripper for manipulating the bottom hole assembly segments. Preferably, the powered arm is controlled by a general purpose computer that guides the powered arm through a predetermined sweep.
101 Citations
22 Claims
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1. An apparatus for disposal on a platform for introducing into a well a bottomhole assembly and an umbilical, comprising:
a plurality of modular structures stacked one on another with adjacent modular structures being releaseably attached, said stacked module structures forming a vertical open area for deploying the bottomhole assembly, said stacked modular structures having an opening for accessing at least a portion of said vertical open area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of deploying a bottomhole assembly on composite coiled tubing, comprising:
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erecting a tower over a well;
installing a stack assembly;
lifting a first segment of the BHA into a position above an injector;
inserting the first segment into the injector;
lifting a second segment of the BHA into a position above the injector;
connecting the first segment to the second segment, the lifting and connecting steps being repeated for the remaining BHA segments;
installing a coiled tubing guide above the injector;
threading composite coiled tubing through the guide; and
connecting the composite coiled tubing to the BHA.- View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
disconnecting the stack assembly from the well;
lifting the stack assembly off of the well; and
moving the tower above a second well.
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18. The method of claim 12 further comprising controlling the lifting and handling steps using a general purpose computer.
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19. The method of claim 12 wherein said lifting, inserting, connecting and installing steps are at last partially controlled from a remote control cabin.
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20. The method of claim 12 wherein said erecting step is performed by stacking a plurality of modules.
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21. An apparatus for supporting well operations, comprising:
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a first set of rails;
a second set of rails disposed in substantially perpendicular relation to said first set of rails;
a first plurality of clamps provided on said first set of rails to releasably engage said second set of rails;
a rig tower disposed on said first set of rails; and
a second plurality of clamps provided on said tower to releaseably engage said first set of rails. - View Dependent Claims (22)
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Specification