دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: to part or open fractures in productive hard limestone formations by using a combination of oil and acid or water and acid under high pressure. See formation fracturing.

to fracture stimulate a formation by injecting the acid over the parting pressure of the rock and using the acid to etch channels in the fracture face.

n: in pipeline construction, a combination of anchors used to hold a lay barge on station and move it forward along the planned route. Lay-barge anchors may weigh in excess of 20 tons (18 tonnes),and a dozen or more may be needed.

n: The combination of drill tool that decreases the deviation angle in directional drilling.

n: The combination of drill tool that holds the deviation angle in directional drilling.

n: the smallest quantity of an element capable of either entering into a chemical combination or existing alone.

n: an area of reduced diameter in pipe caused by excessive longitudinal strain or by a combination of longitudinal strain and the swaging action of a body. A bottleneck may result if the downward motion of the drill pipe is stopped with the slips instead of the brake.

n: any substance or combination of substances that, when dissolved in water, produces a solution that resists a change in its hydrogen ion concentration with the addition of acid or base.

a chemical used to keep the pH in a certain range without extremes of high or low pH.

n: (BLM) an agency within the Department of the Interior (DOI) that is responsible for managing the nations public lands and resources in a combination of ways that best serves the needs of the American people. The resources on public lands under BLM authority include recreation;forestry;fish and wildlife;range;timber;minerals;water-shed;wilderness;and natural, scientific, and cultural values. Address: Dept. of the Interior, Main Interior Bldg.;Washington, DC 20240;Directors Office (202) 452- 5125.

n: a chemical combination of calcium, carbon, and oxygen, CaCO3 It is the main constituent of lime-stone. It forms a tenacious scale in water-andling facilities and is a cause of water hardness.

n: CaCO3, white powder or crystal. Used for fluid loss agent of non-soil phase completion fluid and heavy weight additive of drill fluid.

CaCO3, limestone, a common formation or when in particles, a weighting or fluid loss agent.

n: a chemical combination of calcium, magnesium, carbon, and oxygen, CaMgCO3. It is the main constituent of dolomite. Compare calcium carbonate.