دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: see vuggy formation.

wing valve on a wellhead.

abbr: weighted average cost of gas.

water-alternating-gas;a tertiary drive mechanism using alternating injections of water and gas.

n: in pipeline construction, a multiheaded circular propane torch that is manually rotated inside the end of a pipe for preheating.

a method of controlling kicks in which the weight of the kill weight mud is calculated by the difference between the difference of casing and tubing pressure and the volume of fluid increase;followed by injection of the kill weight mud to displace the li

n: a well-killing method in which the well is shut in and the mud weight is raised the amount required to kill the well. The heavy mud is then circulated into the well while the kick fluids are circulated out. So called because one shuts the well in and waits for the mud to be weighted before circulation begins.

adj: (WOC) pertaining to the time when drilling or completion operations are suspended so that the cement in a well can harden sufficiently.