屏蔽暂堵钻井完井液技术在低压低渗气藏的应用效果分析

The Analysis of Application Effect on Shielding and Diverting Liquid of Drilling Well and Completing Well Technology in Low Pressure and Low Permeability Gas Reservoir.

鄂北地区大牛地气田是典型的低压、低渗裂缝性砂岩气藏 ,该区储层损害机理以储层液锁损害、应力敏感损害 ,以及水敏、盐敏损害等为主。使用适合该区储层的屏蔽暂堵钻井完井液技术 ,在鄂北大牛地气田多口探井及开发准备井进行了现场试验 。

Daniudi gas fields in Ebei zones are typical low pressure and low permeability fissured sandstone gas reservoirs.The formation damage mechanism gives priority to liquid lock damage,stress sensitivity damage,water sensitivity and salt sensitivity.By making use of the shielding and diverting liquid of drilling well and completing well technology suiting the zones,A several of the delineation wells and the development wells of Daniudi gas fields in Ebei zones have gained remarkable effect.