초록 ▼

A tool for pressure testing flow conductors. The tool can engage the inside wall of a flow conductor at any location and form a pressure barrier to allow hydrostatic testing of the flow conductor on one side of the tool for leaks. The tool can be used to test either vertical or horizontal flow condu

A tool for pressure testing flow conductors. The tool can engage the inside wall of a flow conductor at any location and form a pressure barrier to allow hydrostatic testing of the flow conductor on one side of the tool for leaks. The tool can be used to test either vertical or horizontal flow conductors. The tool is particularly adapted for use with pumpdown or through the flowline (TFL) servicing equipment for hydrostatic testing of tubing in wells. The tool is initially inserted into the flow conductor in a retracted condition. The tool can be moved through the conductor as desired until activated at a selected position within the flow conductor.

대표청구항 ▼

A tool for pressure testing flow conductors, comprising: a. mandrel means; b. means, carried on the exterior of said mandrel means, for sealing between said mandrel means and said flow conductor; c. a flow passage through said mandrel means having openings on either side of said sealing means; d. a

A tool for pressure testing flow conductors, comprising: a. mandrel means; b. means, carried on the exterior of said mandrel means, for sealing between said mandrel means and said flow conductor; c. a flow passage through said mandrel means having openings on either side of said sealing means; d. a check valve contained within said flow passage blocking fluid flow in one direction and allowing fluid flow in the other direction; e. means for expanding said sealing means; f. slips carried by said mandrel means in an initially retracted position; g. means for biasing said slips to an expanded position to engage said flow conductor whereby movement of said tool in said one direction is prevented and movement of said tool in said other direction is allowed; h. means for holding said slip biasing means in an inert condition until activated; and i. said means for expanding said sealing means further comprising telescoping sections on said mandrel adjacent to said sealing means, means for releasably holding said telescoping sections in an extended position, and means for applying a force to one of said telescoping sections when said slips are engaged with said flow conductor, whereby said releasable holding means are overcome and said telescoping sections move to a position expanding said sealing means to engage said flow conductor.