WELL-KILLING FLUID Russian patent published in 2002 - IPC

Abstract RU 2190004 C1

FIELD: oil and gas production. SUBSTANCE: petroleum product-based fluid containing reagent APK (20-70%) additionally contains 8.0- 10% butylcellosolve resulting in increase in efficiency of fluid owing to imparted to it new rheological properties and improved dissolution capacity with regard to water-oil emulsions and asphalt-tar deposits. Petroleum product utilized can be crude oil. Kerosene, oil distillates, and mazut. EFFECT: enabled controlling density of fluid within a wide range, improved time and temperature composition stability, and prevented pollution of productive formation. 2 cl, 1 tbl

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RU 2 190 004 C1

Authors

Galeev R.M.

Krasnov A.G.

Ramazanov D.Sh.

Dates

2002-09-27Published

2001-09-19Filed