دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

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.

n: (obsolete) kelly;kelly joint. grinding and buffing n: in pipeline construction, the process of cleaning pipe ends of dirt. rust, mill scale, or solvent to prepare them for welding. Grinding and buffing tasks are accomplished with power hand tools such as wire brushes and buffers. grind out v: to test for the presence of water in oil by use of a centrifuge.

n: refer to “kelly”

n: the collection of dirt, paraffin, oil, mill scale, rust, and other debris that is cleaned out of a pipeline when a scraper or a pig is put through the line.

n: a term used to describe a mixture of diesel oil,bentonite,and sometimes cement,that is used to combat lost circulation.

n: thin. dense oxide scale that forms on the surface of newly manufactured steel as it cools. Mill scale can become cathodic to its own steel base. forming galvanic corrosion cells.

an iron oxide on the pipe walls that is formed during pipe manufacture.

n: a cylindrical or spherical device that is affixed to the end of a wireline just above the hook to keep the line straight and to provide weight. v: to soak metal pieces in a chemical solution to remove dirt and scale from the metals surface.

a chemical treatment of the tubulars to remove pipe dope, mill scale and mud or cement residue.