دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the equipment installed at the surface of the wellbore. A wellhead includes such equipment as the casinghead and tubing head. adj: pertaining to the wellhead (e.g., wellhead pressure).

the mechanical connection between the tree and the casing. May house tubular hangers, annular access valves. It is connected to the casing by welding, threads, hydraulic forming or set screws.

n: The surface termination of a wellbore that incorporates facilities for installing casing hangers during the well construction phase. The wellhead also incorporates a means of hanging the production tubing and installing the Christmas tree and surface flow

n: the price received by the producer for sales at the well. See also crude oil average domestic first purchase price.

abbr: War Emergency Pipelines.

n: crude oil produced from the Pennian Basin of West Texas and eastern New Mexico. Its gravity falls between light and heavy crude oil. It is a benchmark" crude in that its price is often quoted as a measure of general crude oil prices.

water bearing with little hydrocarbon.

n: see oil-bath air cleanel:

n: through making the liquid phase of underflow come from apex more than the quantity under balance,which can make sediment ejection more successful.

n: in pipeline construction, a boring technique similar to slick boring that is used for small-diameter pipe such as natural gas distribution lines. Water is the lubricant. Compare slick boring.

n: see mud box.