دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a quick-release clamp that may be fitted around a strapping tape at any convenient position throughout its length.

n: in pipeline construction, a protective coating of polyethylene, polyvinyl, coal-tar-base, or butyl-mastic tape that is wrapped around pipe to prevent corrosion. Tape coatings are applied on the line, and any defects can be repaired relatively quickly and simply.

n: a guide that slides freely along strapping tape and that is used to pull and hold the tape in the correct position for taking measurements.

n: rolls of plastic sheeting with a preapplied adhesive that are used to coat pipelines to prevent corrosion after they are buried.

n: A kind of tool of taper mill,mainly used to mill casing that be collapsed.

n: a tap with a gradually decreasing diameter from the top. It is used to retrieve a hollow fish such as a drill collar and is the male counterpart of a die collar. The taper tap is run into a hollow fish and rotated to cut enough threads to provide a firm grip and permit the fish to be pulled and recovered. See tap. Compare die collar.

a spear-like fishing device with threads to engage ID threaded fish.

a two piece fitting placed in the master bushing to hold the slips.

n: A string of casing that consists of two or more sizes or weights.

n: A string of drill collar that consists of two or more sizes or weights.