COMBINED ANTI-ROTATION AND FLOW CONTROL TOOL

摘要

A combined anti-rotation and flow control tool comprises a tubular housing for connection with an oil production tubing string. A flow port in the side wall of the housing is selectively covered by a collar rotatably mounted on the tubular housing and including corresponding ports therein for selective alignment wi th the flow ports as the collar is rotated. An anti-rotation mechanism includes a fixed jaw on the tubular housing and a floating jaw on the collar for rotation therewith to vary the overall diameter of the tool as the floating jaw rotates relative to the fix ed jaw. The collar and the floating jaw are coupled for movement together so that the fl ow ports are always in the open position when the anti-rotation mechanism is in a set position anchored against righthand rotation of the tubing string.