دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

Reworking of the sediment by burrowing animals.

a raised metal lip, e.g.;around a perforation.

n: a bladed tool used to scrape away junk or debris from inside casing;it is usually run into the casing on drill pipe or tubing.

n: A tool for cleaning crud of inside wall of casing. The blade with sword is installed in the cavity of cage. The blade clings the pipe wall because of leaf spring.

a downhole tool with scraping teeth and brushes that is used to remove perforating burrs, “lipped down” areas in connection pins and remove mill scale, dried mud or cement, pipe dope and other well completion debris.

v: to clean and deburr the threads of a pipe so that it will make up properly.

n: The operation that cut down a part of joint and make new thread due to severe wornout of thread.

v: to remove small projections (burrs) from metal pieces or threads.

to remove rough edges, flares, burrs, etc. from a piece of equipment prior to fishing.

a hollow carrier perforating gun with relief ports drilled part way through the gun body to provide an exit point for the perforation charge and to provide a recess to minimize damage from the burr that forms around the exit hole in the perforating gun.

n: a hole radially drilled in the wall of the meter tube or fitting, the inside edge of which is flush and without any burrs.