دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a nonionic polymer (polyacrylamide) used in flocculation, clarifying and even gelling acids and other brines. Very stable, but difficult to effectively break.

n: A kind of baculate clay, sometimes called salt-resisting clay or brinish clay because it is easy to slake in the brine and it is high yield.

n: water that has a large quantity of salt, especially sodium chloride, dissolved in it;salt water.

n: Dissolving a great quantity of salt, especailly sodium chloride. Usually used to make up salt water drilling fluid.

a mixture of water and a soluble salt. Most common brines are sodium chloride NaCl, potassium chloride KCl and calcium chloride CaCl2. Brine densities may range from 8.33 to > 19 lb/gal (1 to >2.28 g/cc). The USGS definition of a brine is a salinity of mo

n: A kind of clay containing concave-convex rabdolith.

n: A kind of criterion reflecting hardness of material. The abbreviation is HB.

a measure of the hardness of the material, generally measured by pushing a small ball into the surface and measuring the force used to displace the ball to a set depth.

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 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 measure of how reactive to water a clay mineral is.

related to concentration of cations on negatively charged clay surfaces that, when brine is present, can be exchanged/satisfied for/by cations in the brine. The total of exchangeable cations that a porous medium can absorb, expressed in moles of ion charg

a lower toxicity weighting agent for brine.

a lower toxicity (than Zinc) weighting agent for higher density brines.