| 摘要 |
FIELD: oil industry, particularly preventing gas- or water-coning phenomena, for instance the formation of a conical column of gas or water around wells. ^ SUBSTANCE: method involves supplying gel-forming material in isolation zone in one step up to full isolation zone saturation; injecting 27% hydrochloric acid at rate of 2-6 l/sec. The gel-forming material is pulp of syenite alkali-aluminum concentrate in calcium chloride solution having specific weight of not more than 1.2 g/cm3 and taken with volumetric ratio of 1:1. The gel-forming material is supplied at rate of not less than 3 l/sec. The gel-forming material and hydrochloric acid mass ratio is 1:1. ^ EFFECT: increased technological effectiveness and improved efficiency due to full isolation zone saturation with gel-forming material. ^ 2 ex |
