PROCESS OF LIQUIDATION OF GAS CROSSFLOWS

摘要

Process of liquidaton of gas crossflows includes injection in portions to annular space of well sealing mix and formation of multi-layer film on inner surface of operation string with lowering and lifting sealing mix at annular space of well. Besides that injection of sealing mix is performed at leveled pressures in pipe and annular spaces, lowering of sealing mix is performed at connection of pipe and annular spaces at mouth of well, at that the first portion of sealing mix includes, mass .%:And the second portion of sealing mix includes, mass .%: