دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: CaBr2`6H2O, white powder. A kind of liquid heavy weight additive, usually for heavy brinish completion fluid.

CaBr2, water soluble brine weighting agent.

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 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.

n: A kind of cationic surface active agent. Used for foaming agent of drill fluid and clay inhibitor of completion fluid.

n: A main component of flowloop simulator of drill fluid and completion fluid.

completion fluid.

n: a drilling fluid made up mainly of chemical salts, such as sodium chloride, calcium chloride, or potassium chloride. Clear brine contains little or no clay or other solid material and is virtually transparent. It is often used when drilling into a producing formation because clear brine minimises formation damage. See completion fluid formation damage.

a brine without suspended solids.

n: low-solids fluid or drilling mud used when a well is being completed. It is selected not only for its ability to control formation pressure, but also for the properties that minimise formation damage.

n: A special drilling mud used when a well is being competed. It is selected not only for its ability to control formation pressure, but also for its properties that minimize formation damage.

a brine, oil or gas based fluid that is used as isolation (kill, separation, inhibition functions, etc.) fluid during the completion of a well. Commonly sea water, NaCl brine, formation water, KCl brine, CaCl2 brine, etc. Oil based fluids are common where

n: a drilling fluid specially formulated to minimize formation damage as the borehole penetrates the producing zone. See formation damage. Compare completion fluid.

the fluid used to drill the pay zone.

n: a special drilling fluid that contains a salt or an ester of formic acid (formate),which is chemically combined with another element such as potassium or cesium. Formate fluids are very stable at high temperatures and can be made very dense (heavy) without adding weighting materials such as barite. Formate fluids are used as completion fluids because they minimise formation damage. See completion fluid, formation damage.