دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The drilling fluid filtrate reducer of amylum derivant that amylum reacts with alkyl sulfate in the alcaline condition.

aluminum and potassium sulfate compound. Used was water clairfying.

process where a special resin exchanges chloride or hydroxide for contaminant anions such as fluoride, nitrate, sulfate and bicarbonate. Water purification is the primary use.

n pl: a large, widely distributed group of typically one-celled microorganisms. See anaerobic bacteria, sulfate reducing bacteria.

n: Refers to the microbe that makes drilling fluid decrease filtration rate and viscosity due to it can destroy amylum additive.

One of the many forms of the barium sulfate mineral. The BaSO4 material is used in drilling mud as a weighting agent and can produce a slurry of over 20 lb/gal in water.

BASO4 scale is produced in the well and in facilities as the result of precipitation when incompatible waters (one having Ba ion and the other SO4 ion) are mixed or when the equilibrium of the flowing fluid reduced and a precipitate is triggered by over s

barium sulfate.

n: CaSO4, microsolubility. Used for depressant of inorganic salt. Usually used for gypse drill fluid.

gyp or anhydrite, CaSO4.

calcium sulfate