دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The treating chemical
loss during manufacturing or purifying drilling fluid agent according to the principle of absorption.

n: a chemical additive that reduces the setting time of cement. See cement, cementing materials.

n: A downhole tool used in conjunction with a jar to store energy that is released suddenly when the jar operates.

A chemical that speeds up the rate of a chemical reaction. Most common are the accelerators used in cementing.

n: any chemical compound. one element of which is hydrogen, that dissociates in solution to produce free hydrogen ions. For example, hydrochloric acid. HCI, dissociates in water to produce hydrogen ions, H+, and chloride ions, CI-. This reaction is expressed chemically as HCI + H+ + CI- . See ion.

a reactive material with a low pH. Common oilfield mineral acids are HCl and HCl/HF.

chemical analysis of the acid concentration and other chemical and physical measurements in the returning acid.

n: material of high specific gravity formed during the chemical refining treatment of oils by sulphuric acid and usually separable by settling or centrifuging. Also called acid tar.

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: CH2=CHCOOH, colourless and irritant smell liquid, has corrosiveness. It is the important material for treating chemical.

American Chemical Society.

a chemical, heat, radiation, or mechanical action that starts or accelerates a chemical reaction.