دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a tray, installed in an absorber tower or fractionating column, that is similar to a bubble-cap tray, except that it has only holes but no bubble caps through it. This type of tray is more efficient than the bubblecap tray or the valve tray and less expensive than either;however, it does not operate properly over a wide range of flow rates.

n: the rig with a small mast that used to workover.

n: a tubular part designed to fit over another part.

n: An inexact term describing a borehole (and associated casing program) significantly smaller than a standard approach, commonly a wellbore less than 6 in. in diameter. The slimhole concept has its roots in the observed correlation between well costs and vo

a smaller well. Thought to be cheaper to drill, but much more expensive to repair or workover and often limited on fluid flow rate potential.

n: a prover with a volume between detectors that does not permit a minimum accumulation of 1,000 direct (unaltered) pulses from the meter. Small-volume provers require meter pulse discrimination by pulse interpolation counter or other techniques to increase the resolution.

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.

n: the process of lowering pipe into the wellbore when the well is shut in on a kick and when the pipes weight is not sufficient to overcome the force of well pressure.

a job where the well is workover without killing the well. Usually accomplished by multiple barriers that seal on the tubulars.

n: either a stand-alone device or a rig-assist device that is used to force pipe into the well when the well is shut in on a kick. When the pipes weight is not sufficient to overcome the upward force of well pressure, a snubbing unit must be used. Compare stripping in.

n: It is a kind of good mud thinner and calcium remover.