Controlling ferric ions while acidizing subterranean formations

Details Controlling ferric ions while acidizing subterranean formations Controlling ferric ions while acidizing subterranean formations

E - Fixed Constructions

21

B

E21B 43/25 (2006.01) C09K 8/52 (2006.01) C09K 8/74 (2006.01)

Patent

CA 2136395

A composition for and method of treating a subterranean hydrocarbon producing formation is provided. The treatment, when conducted in the presence of ferric ions, prevents the development of insoluble ferric iron-containing compounds and also prevents the development of sludge in heavy crude.

n présente une méthode pour le traitement d'une formation souterraine produisant des hydrocarbures et une composition pour cette méthode. Le traitement, lorsqu'il est effecuté en présence d'ions ferriques, prévient la production de composés ferriques insolubles contenant du fer, ainsi que la production de boues dans le brut lourd.

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