دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

Static condition of the length of tubing in the well, where buoyed tube weight (well fluid sensitive) equals the well pressure acting against the cross-sectional area of the tube. The balance point does not include any frictional forces exerted by frictio

n: a special blowout preventer used in snubbing.

an extension of a retrievable tool that is used to set and release the tool.

hydraulic workover, usually working under pressure. Some HWO units are set up with pipe handling capacity as are snubbing units.

a snubbing job in which the well is workover without killing the well with fluid. Usually accomplished by multiple barriers that seal on the tubulars.

a hydraulic workover/snubbing tubing running term – when the weight of the pipe is sufficient to pull the pipe into a well against the surface pressure.

hydraulic workover/snubbing tubing running term – when the weight of the pipe is not sufficient to pull the pipe into a well against the surface pressure and additional force (snubbing) is required.

n: a snubbing unit.

n: see tools for operating under pressure.

n: oil well cement with radioactive tracer ,able to detecte the cement out of the casing or the snubbing cementing situation and the leaker on the casing

without a drilling or workover rig (may involve a wireline unit, snubbing unit, or coiled tubing unit).

Snubbing usually requires an array of wireline blocks and wire rope that forces the pipe or tools into the well through a stripper head or blowout preventer until the weight of the string is sufficient to overcome the lifting effect of the well pressure on the pipe in the preventer. In workover opera- tions, snubbing is usually accomplished by using hydraulic power to force the pipe through the stripping head or blowout preventer. 2. to tie up short with a line.