FIELD: transport.
SUBSTANCE: device for moving, connecting and disconnecting pipe section with pipe column contains pipe engagement assembly made capable to be connected with driving shaft of upper drive to transfer torque during pipe section spinning up/down. Herewith, pipe engagement assembly has self-engaging ball and cone assembly made capable to engage with pipe section. Ball and cone assembly is resistive to both static and dynamic load and is configured to carry total weight of pipe column during simultaneous rotation and vertical movement of the pipe column in a well. Pipe engagement assembly may be made interchangeable with internal or external pipe section gripper with power disengager controlled by hydraulic or pneumatic system, and with locking mechanism. Ball and cone assembly contains multiple balls with at least one direction inside multiple cones; herewith, multiple cones are oriented in at least two different directions. The claim also includes methods for engagement and disengagement of pipe section with pipe column using the said device.
EFFECT: reduced labour input for round trip operations.
28 cl, 8 dwg
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