精细控压钻井技术在高石19井实践与认识
Drilling & Production Technology(2014)
Abstract
高石19井是四川盆地乐山-龙女寺古隆起高石梯潜伏构造震旦系顶界南端上的一口预探井。该井四开常规钻井在栖霞组4013.69 m钻遇高压裂缝,溢、漏复杂交替发生,处理30 d后仍无法恢复常规钻井,漏失钻井液2510.9 m3。后采用精细控压钻井技术,成功解决了溢漏同存的复杂局面,顺利钻至中完井深,为磨溪-高石梯海相地层精细控压钻井技术的应用总结了经验,取得显著应用效果。
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