| 摘要 |
<p>FIELD: oil producing industry, particularly, compositions for waterproofing jobs, restoration of annular space sealing, regulation of filtering flows of oil formations in well work over jobs. SUBSTANCE: gel forming composition contains ferrochromium self-slaking slag, hydrochloric acid, calcium oxide and water with the following amounts of components, wt.%: ferrochromium self-slaking slag 6-11; hydrochloric acid 7-13; calcium oxide 0.6-0.8; the balance, water. EFFECT: higher strength of produced gels, reduced permeability of nonsealed annular space after injection of gel forming composition. 3 tbl, 3 ex</p> |
