Scale dissolver fluid

Details Scale dissolver fluid Scale dissolver fluid

C - Chemistry, Metallurgy

09

K

C09K 8/528 (2006.01) E21B 37/00 (2006.01) E21B 37/06 (2006.01)

Patent

CA 2418933

A scale dissolver fluid for dissolving scale in a subterranean hydrocarbon- bearing formation comprises an effective amount of a scale dissolver formulation and an effective amount of a surfactant for controlling the viscosity of the fluid. In use, formation hydrocarbons act on the surfactant to reduce the viscosity of the fluid so that the fluid selectively invades a hydrocarbon-bearing zone of the formation.

La présente invention concerne un liquide de dissolution du tartre servant à dissoudre du tartre dans une formation souterraine contenant des hydrocarbures, ledit liquide comprenant une quantité efficace d'une formulation de dissolution du tartre et une quantité efficace d'un tensioactif servant à réguler la viscosité du liquide. Lors de l'utilisation, les hydrocarbures de la formation agissent sur le tensioactif pour réduire la viscosité du liquide de sorte que le liquide se répand de manière sélective dans une zone contenant des hydrocarbures de la formation.

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