دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

The general collar that have a row of blind hole at one side face,which can decrease the well deviation.

A kind of material that be used to mamufacture medium sticky CMC

abbr: water-oil ratio.

water oil contact

n: the acting of a force through distance, or the overcoming of a resistance to motion. No work is done unless motion is produced. Mathematically, work is force times distance.

n: see personnel basket.

the basket on a snubbing unit where the operator stands.

n: a boat or self-propelled barge used to carry supplies, tools, and equipment to job site offshore.

n: hardness developed in metals as a result of cold-working.

a metal deterioration in which the metal becomes progressively harder and more brittle with repeated application of load.

v: to perform one or more of a variety of remedial operations on a producing oilwell to try to increase production. Examples of workover operations are deepening, plugging back, pulling and resetting liners, and squeeze cementing.

n: 1. in drilling, the string of drill pipe or tubing suspended in a well to which is attached a special tool or device that is used to carry out a certain task, such as squeeze cementing or fishing. 2. in pipe- line construction, the string of washpipe that replaces the pilot string in a directionally drilled river crossing. The work string remains in place under the river until the actual pipeline is made up and is ready to be pulled back across the river.

The drill pipe or tubing string with special tool ,which can fishing, snubbing cementing,etc.






a special, often large string of tubulars that are used during the completion of the well. Usually higher pressure capacity or allow higher weights than the production tubing.