دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the common name for anhydrous calcium sulphate. caSﾰ4.

n: The main component is calcium sulphate which has no crystal water. The formation which contains this gypse is very usual in drilling and it can contaminate the fresh water drilling fluid. This formation swells when the drilling fluid go through it and som

CaSO4 formation. Usually formed as an evaporite from a drying lake of trapped sea water.

n: water that contains relatively low concentrations of soluble salts. Brackish water is saltier than fresh water but not as salty as salt water.

n: The water which contains lesser salt, including hard water whose pH is from 7 to 9. Usually the content of chloride is less than 18970g/L. It comes from coastal waters, bay, variole or inland lake. This kind of water contain more Ca2+ and Mg2+. We should

indefinite term meaning water with small amounts of salt. Saltier than fresh water.

n: a moisture-absorbing chemical compound, or desiccant, CaCI2, used to accelerate setting times in cement and as a drying agent. It is also added to fresh water to increase the waters weight and to give it desirable properties during well completion or workover.

n: CaCl2, a kind of absorption chemical compound.Usually used for calcium mud and heavy weight additive of completion fluid.

CaCl2, a water soluble brine weighting agent.

water condensed from gas as it is produced. Usually fresh water.

n: treated fresh water that circulates inside a diesel engine to transfer heat. cooperative n: an organisation or company that collects money or resources from several companies into a common-use pool, which can be utilised by any cooperative member if the need arises. One of the largest private oil spill response cooperatives is the Marine Spill Response Corporation (MSRC),formed by a group of US oil companies.

n: the mass or weight of a substance per unit volume. For instance, the density of a drilling mud may be 10 pounds per gallon, 74.8 pounds/cubic foot, or 1,198.2 kilograms/cubic metre. Specific gravity, relative density, and API gravity are other units of density.

n: Mass per unit volume expressed in pounds per gallon (ppg),grams per cubic (g/cc),or pounds per cubic ft (lb/cu.ft). Drilling-fluid density is commonly referred to as mud weight.


the mass per volume of a substance. Density of fresh water is 8.33 pounds per gallon or 1 gram/cc.

v: to remove dissolved salt from crude oil. Sometimes fresh water is injected into the crude stream to dissolve salt for removal by electrostatic treaters.

n: a well into which salt water or spent chemical is pumped, most commonly part of a saltwater-disposal system.

a well into which fluids such as produced water and some liquid wastes can be injected. It is in a non hydrocarbon, non-fresh water sand and is not connected to the hydrocarbon bearing formation.

n: the fresh water or salt water used in dynamic kill

n: a coastal indentation or bay into which a river empties and where fresh water mixes with seawater. Compare marine delta.