CASTING METHOD OF CEMENTING

摘要

FIELD: oil and gas industry. ^ SUBSTANCE: casting method of cementing consists in gasified cement injection in casing pipe, two-stage squeezing into hole clearance considering gasified cement degassing while it is activated in borehole cavity, as well as considering gasified cement compressibility in thermobaric borehole environment. Improved gasified cement-bond in borehole is ensured by defect breakdown at the first stage of structure formation (activation) of gasified cement suspension owing to staged squeezing of gasified cement considering its stability. ^ EFFECT: improved gasified cement-bond in borehole. ^ 3 dwg