초록 ▼

A system for handling reeled tubing including a guide, a shear for cutting the tubing, and a tubing injector including upper and lower strippers and guides and an enclosure for the injector. The enclosure in one form excludes sea water in an open bottomed enclosure and in the other maintains pressur

A system for handling reeled tubing including a guide, a shear for cutting the tubing, and a tubing injector including upper and lower strippers and guides and an enclosure for the injector. The enclosure in one form excludes sea water in an open bottomed enclosure and in the other maintains pressure in a completely closed enclosure.

대표청구항 ▼

A shear comprising; first and second opposed rams, means for extending and retracting said rams, said first ram having a first abutment member with a substantially semicylindrical vertically extending convex abutment surface for bending the wall of a vertically extending tubing into a double C confi

A shear comprising; first and second opposed rams, means for extending and retracting said rams, said first ram having a first abutment member with a substantially semicylindrical vertically extending convex abutment surface for bending the wall of a vertically extending tubing into a double C configuration, said second ram carrying a cutting blade with a horizontally extending cutting edge, and a cutout in said blade adjacent the cutting edge and on the side of the blade adjacent said abutment surface, said means for extending said rams extending said abutment surface and cutting edge into overlapping relationship to cut a tubing and crimp the tubing in said cutout. A tubing handling system comprising: a shear comprising: first and second opposed rams, means for extending and retracting said rams, said first ram having a first abutment member with a substantially semicylindrical vertically extending convex abutment surface for bending the wall of a vertically extending tubing into a double C configuration, said second ram carrying a cutting blade with a horizontally extending cutting edge, and a cutout in said blade adjacent the cutting edge and on the side of the blade adjacent said semicylindrical surface, said means for extending said rams extending said semicylindrical surface and cutting edge into overlapping relationship to cut a tubing and crimp the tubing in said cutout; a tubing guide attached to the top of said shear and centering a tubing in said shear comprising: a tubular flexible member for receiving a tubing, and a coiled spring embedded in the flexible member; a tubing injector in an enclosure for moving tubing though a wellhead: and a stripper attached between the injector and shear centering a tubing in the shear comprising: a housing, upper and lower confronting cup-shaped receptacles in said housing, resilient seals in said receptacle, a bore through the receptacles and seals for receiving a tubing, holding means between said resilient seals holding them in engagement with said receptacles and with a tubing to seal therewith, and fluid relief ports in said housing between said receptacles to exhaust fluid from said housing.