| 摘要 |
FIELD: oil and gas production. SUBSTANCE: drilling mud contains, wt.% clay, 5-15; stabilizing reagent, 0.5-1.5; calcium carbonate obtained by treating limestone with triethylamine, 15-50; and water, the balance. EFFECT: improved quality of formation exposing due to increased permeability restoration coefficient with simultaneously preserved high biological and sedimentation stability of solution. 4 tbl, 3 ex
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