دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a method of improved recovery in which alkaline chemicals such as sodium hydroxide are injected during a water flood or combined with polymer flooding. The chemicals react with the natural acid present in certain crude oils to form surfactants within the reservoir. The surfactants enable the water to move additional quantities of oil from the depleted reservoir. Compare chemical flooding, polymer flooding, water flooding.

large scale injection of pH>7 fluids. The basic materials may react with oils to form reactants that can reduce viscosity or affect wetting.

n: The base flow in the cyclone is not U-flow situation that low speed liuqid does not contain separated solid particle but high speed mud because the operation is improper.

n: see alkaline (caustic) flooding, micellarpolymer flQoding.

one of several methods involving injecting a chemical into a formation to improve the production of hydrocarbon. May be from an injection well to a production well or injection into a producer with a soak period before recovery.

n: any of many processes in the oil industry that involve the use of a chemical to effect an operation. Some chemical treatments are acidising, crude oil demulsification, conclusion inhibition, paraffin removal, scale removal, drilling fluid control, refinery and plant processes, cleaning and plugging operations, chemical flooding, and water purification.