Oilfield

Oilfield

Oilfield refers to a region with an abundance of oil wells extracting petroleum from below the ground.

Contributors in Oilfield

Oilfield

A test performed to ensure stable well conditions or the integrity of a plug, valve or flow-control device. In most cases, the flow cheque involves observing stable fluid levels or conditions for a ...

Step rate test

Oil & gas; Oilfield

A test performed in preparation for a hydraulic fracturing treatment in which an injection fluid is injected for a defined period in a series of increasing pump rates. The resulting data are used to ...

Produced water

Oil & gas; Oilfield

A term used to describe water produced from a wellbore that is not a treatment fluid. The characteristics of produced water vary and use of the term often implies an inexact or unknown composition. ...

Commingled flow

Oil & gas; Oilfield

A term used to describe the flow pattern where two or more fluid phases may be present in a relatively even distribution. The flow rate and conduit geometry may cause an apparent mixing of the ...

Bottomhole sampler

Oil & gas; Oilfield

A tool or assembly used to retrieve samples of fluids or fill material from the wellbore. Used as a treatment design aid, the retrieved samples can be checked for compatibility with the selected ...

Swage

Oil & gas; Oilfield

A threaded adapter used to connect a circulating line to a casing or tubing string. A casing or tubing swage generally is required as a contingency option to enable any obstruction or fill to be ...

Collar

Oil & gas; Oilfield

A threaded coupling used to join two lengths of pipe such as production tubing, casing or liner. The type of thread and style of collar varies with the specifications and manufacturer of the tubing.