| 摘要 |
FIELD: oil and gas production. SUBSTANCE: invention relates to drilling and opening productive strata and appraisal wells. Drilling mud includes diesel fuel, highly oxidized bitumen, synthetic fatty acids, sodium hydroxide, polyorganoethoxysilane-siloxane, synthetic latex, and baryte. According to invention, polyorganoethoxysilane- siloxane, prior to be introduced into mud, is mixed with synthetic latex in a small amount of diesel fuel for 20 min at 110 C. EFFECT: increased thermodynamic stability of mud at temperatures up to 270 C. |
