دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the theoretical maximum flow that a well could deliver with a zero backpressure at the middle of the perforations.

the volume a solid occupies when added to a fluid divided by its weight. m3/kg or gal/lb.

n: A cement that can quickly solidify. It is manufactured by adding accelerater to oil well cement.

n: a chemical additive that reduces the setting time of cement. See cement, cementing materials.

n: A downhole tool used in conjunction with a jar to store energy that is released suddenly when the jar operates.

an energy increasing device, with sudden energy release, used in a jarring string while fishing.

n: It is made by adding suitable powder of lime or carbonate to the cement.

n: 1. in general, a substance added in small amounts to a larger amount of another substance to change some characteristic of the latter. In the oil industry, additives are used in lubricating oil, fuel, drilling mud, and cement. 2. in cementing, a substance added to cement to change its characteristics to satisfy specific conditions in die well. A cement additive may work as an accelerator, retarder, dispersant, or other reactant.

n: The agent put into the drilling fluid in order to change some performances of the drilling fluid or slurry.

a compound incorporated into a gas, liquid, or solid system to alter the properties for a particular purpose.

n: (RSPA) a DOT agency that oversees the Office of Pipeline Safety, intermodal containers, highway portable tanks, railroad cars, and anything used in interstate or international commerce not regulated by the coast guard. Under OPA, RSPA has authority over onshore oil and hazardous materials pipelines that are used in interstate commerce. Address: 400 7th Street SW;Washington, DC 20590;(202) 366-4433.

n: Made by adding gas into common water base drilling fluid. Mainly used to protect circulation loss in low pressure formation and leakage zone.

n: a motor-driven paddle or blade used to mix the liquids and solids in drilling mud.

n: A mechanically driven impeller used to stir the drilling fluid to assist in the suspension of solids, blending of additives, and maintenance of uniform consistency.