QUARTER TURN TUBING ANCHOR CATCHER

摘要

A torque anchor for anchoring well equipment in a well conduit to arrest movement in both longitudinal directions and rotation in a first direction, but not rotation in an opposed second direction. A mandrel connected to the equipment has one or more grooves for slideably receiving respective pins from a drag body on the mandrel. A slip cage on the mandrel houses slips for selectively engaging and disengaging the conduit. Manipulation of the mandrel at surface causes the pins to move within the one or more grooves on the mandrel and the drag body to move toward the slip retainer driving the slips outward to grip the conduit. Further pulling at surface maintains the set position. The anchor is unseta surface by releasing the pull, rotating the mandrel in the second direction, and pushing the mandrel to disengage the slips.

主权项

1. A tubing anchor catcher tool that is positionable within a well conduit for preventing movement of a tubing string, the tool comprising:
a. a mandrel that is connectible at a first end and a second end within the tubing string, the mandrel comprising an externally facing groove; b. a slip cage that is slidably mountable about the mandrel, the slip cage comprising a slip that is adapted for engaging the inner surface of the well conduit; c. a first cone element that is slidably mountable about the mandrel, adjacent the slip cage towards a first end of the tool, the first cone element comprising a first conical surface; d. a drag body that is slidably mountable about the mandrel, adjacent the slip cage towards a second end of the tool, the drag body comprising a drag member that is sized for frictionally engaging an inner surface of the well conduit, a pin for engaging the externally facing groove, and a second conical surface; and e. a biasing member that is slidably mountable about the mandrel adjacent the first cone element for engaging the first cone element when the biasing member is compressed;
wherein the tool is articulatable between a run-in position and a set position, when in the run-in position the slip is retracted into the slip cage and when in the set position at least the second conical surface is moved underneath the slip for extending the slip outward from the slip cage.