| 摘要 |
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 |
