دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: to treat oil-bearing limestone or other formations with acid for the purpose of increasing production. Hydrochloric or other acid is injected into the formation under pressure. The acid etches the rock, enlarging the pore spaces and passages through which the reservoir fluids flow. Acid also removes formation damage by dissolving material plugging the rock surrounding the wellbore. The acid is held under pressure for a period of time and then pumped out, after which the well is swabbed and put back into production. Chemical inhibitors combined with the acid prevent corrosion of the pipe. acid recovery plant n: plant for therecovery of sulfuric acid from acid sludge.

n: a compound that is formed (along with water) by the reaction of an acid with abase. A common salt (table salt) is sodium chloride, Naa, derived by combining hydrochloric acid, Ha, with sodium hydroxide, NaOH. The result is sodium chloride and water, H2O. This process is written chemically as Ha + NaOH ~ NaCI + H2O. Another salt is calcium sulfate, CaS�4, obtained when sulfuric acid, H2SO4 is combined with calcium hydroxide, Ca (OH)2

n: a crystalline acid (NH2S03H) derived from sulfuric acid that is sometimes used in acidizing.

a dry acid derivative of sulfuric which is used in very minor acid jobs in the form of acid sticks dropped into the well.

n: A kind of product that made by using fuming sulfuric acid sulphonating brown coal.

n: A kind of product that made by reaction of fuming sulfuric acid with styrene.

n: A kind of active agent, which is made by sulphonating tall oil with fuming sulfuric acid.

n: a colorless, oily liquid compound of hydrogen, sulfur, and oxygen (H2SO4) strongly poisonous and corrosive. It is formed when hydrogen sulfide (H2S) or sulfur dioxide (SO2) is mixed with water (H2O). Also called vitriolic acid.