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沙88井四开井段钻井完井技术及复杂情况的处理

唐世春,廉仕学,侯绪田,李梦刚

PETROLEUM DRILLING TECHNIQUES（2004）

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Abstract
沙88井在奥陶系下统鹰山组地层钻遇5.70m的大溶洞,钻井液有进无出,堵漏13次均无效,漏失钻井液及堵漏浆2748 m3.后采用欠平衡压力强行钻进技术钻完四开井段,φ177.8mm尾管固井采用"穿鞋戴帽"固井技术,有效封固了漏失层上下井段及漏失层井段.详细介绍了沙88井四开井段复杂井况下的堵漏、强行钻进、固井等技术措施及施工工艺.
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