دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the term, usually in a phrase like so long thereafter as oil or gas is produced in paying quantities," that extends a lease beyond its primary term. Compare primary term.

n: the use of blowout prevention equipment to control a kick. Compare primary well control.

n: the winding of an induction apparatus, such as a transformer, in which an emf is induced by the current in the primary winding.

n: the time in seconds that it takes 1 quart of drilling mud to flow out of a Marsh funnel. It is a measure of the muds viscosity. See also Marshfunnel.

n: 1. a unit of land measurement in the rectangular survey system. Each 6-mile (9.7-kilometre) square, or township, is divided into 36 sections. A section usually is 1 square mile (2,590 square kilometres),or 640 acres (256 hectares). It may be larger or smaller, depending on its position in the township. 2. vertically arrayed data.

n: the process by which a portion of pipe, usually casing, is actually removed by cutting with a mill.

n: The process that milling a section of casing in the well by milling tool.

abbr: sediment;used in drilling reports.

n: (S&W) a material coexisting with, yet foreign to, petroleum liquid and requiring a separate measurement for reasons that include sales accounting. This foreign material includes free water and sediment (dynamic measurement) and/ or emulsified or suspended water and sediment (static measurement). The quantity of suspended material present is determined by a centrifuge or laboratory testing of a sample of petroleum liquid.

n: a sample obtained from the bottom of the tank to determine the amount of non-merchantable material present.