气层钻进中的特殊反弹现象

SPECIAL REBOUND PHENOMENA OF DRILLING IN GAS BEARING FORMATIN

循环井漏、停泵溢流，是钻遇裂缝溶洞气层一种特殊的反弹现象。因为井漏容易忽视溢流，这是很危险的；反弹溢流是一种比较复杂的井控问题。文章通过现场实际资料的分析和研究，初步认识了反弹机理、反弹特征，并且总结了不同反弹溢流的处理方法。

ost circulation and overflow are the special rebound phenomena of drilling in gas bearing formation with fracture and cavern.It is very dangerous to ignore overflow because of lost circulation.Rebound overflow is a complex well control problem.Through analysing on-the-spot data,rebouned mechanism and rebound characteristics are primarily understood.The various methods of treating rebound overflow are summarized.