دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a fishing tool installed inside washover pipe to prevent a fish stuck off bottom from falling to bottom during a washover. Slips on the anchor washpipe spear engage the inside of the washover pipe as the pipe travels downhole around the fish.

n: A kind of wash over fishing tool. The slip grip which is used to wash over and fish the pipe stick in the wellbore is installed in the washover pipe.

n: see washover backoff connector.

n: a powerful magnet placed in the return line between the wellbore and the mud pit to remove metal particles from the drilling mud. A ditch magnet is often used during milling operations.

n: A device used to aspirate the iron fillings and powers from the drill fluid when corrode or washover the junk

n: the threaded connector used to connect the washover pipe
and drill pipe

n: the thin washover shoe with short tooth range and shallow tooth depth,used to nill the hard formation or the hole section with small annular clearance

n: the washover pipe used for unfreezing or the small pipe which is used to dirll off the stem in the well

n: a process that small fish which jamed in well or drilling rig through steps of washover,oil bubble or jarring is able to raise or continue to down.

n: a process that drill column which jamed in well or other columns through free stick steps of jarring,oil bubble or washover is able to raise or continue to down.

n: Low an inside cutter or outer cutter with bite in or out of the stuck drilling tools ,and then rotate the pipe so that the cutter cuts the pipe in the expected location .The left pipe in the well can be processed by washover backoff connector tool