精细控压钻井技术的研究及其在复杂井中的作用

摘要

The fine controlled pressure drilling is introduced to complex wells to keep the fluid column pressure of bottom hole in the micro state of balance along with the liquid level of circulation tank in micro-decreasing,and avoid gas invading to wells. It proposes the reference for future similar processes.%本文将精细控压钻井技术引入复杂井中,该技术可保持井底液柱压力始终处于微过平衡状态,循环罐液面保持微降状态,保证气层中的气不会侵入井内,该技术对今后类似情况的处理具有借鉴和指导作用.