دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

asphaltene.

ring compound materials in the oil composed of carbon, hydrogen, sulfur, nickel and other trace materials. Asphaltenes are mostly very small platelets (35 A) suspended by micelles of maltenes and resins and carried through the oil. They precipitate by agg

secondary recovery technique for oil. The carbon dioxide gas is injected and alternated with water. CO2 lowers the viscosity of most oils, but may trigger severe asphaltene and scale precipitates.

a science field dealing with prevention of scales, hydrates, asphaltene and paraffin deposits and other problems that could stop flow of fluid from the subsurface, wellhead or pipeline.

a cyclic compound associated with asphaltenes that helps keep asphaltene platelets in suspension.

a deposit in the flow path that is chiefly organic in composition – typically paraffin (wax),asphaltene, tar, or other organic material.

a five carbon chain alkane. Used in the lab to check for asphaltenes (precipitates them).

a cyclic material that, along with maltenes, helps keep asphaltenes tied up a micelles in suspension.

n: any device that is used to remove deposits (such as scale or paraffin) from tubing, casing, rods, flow lines, or pipelines.

a device that cuts through paraffin, asphaltenes, etc. inside the pipe. Run on wireline.