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樊页1井是胜利油田樊家区块第一口重点非常规页岩气预探井,密闭取心是为了避免钻井液对岩心污染、保障岩心原始状态而应用的技术,该技术解决了页岩气岩心易破碎断裂的难题,为页岩气勘探提供了技术支持,也为保障岩心含气量的准确性奠定了基础。本文从介绍樊页1井密闭取心作业中的特点入手,分析了密闭取心技术在非常规页岩气井中的应用情况和应用效果。
Fan Page 1 is the first unconventional shale gas pre-exploration well in Fanjia block of Shengli Oilfield. Closed coring is a technique applied to avoid core contamination of drilling fluid and ensure the original state of core. The technique solves the problems of shale The difficulty of fracturing the gas core in a fractured rock provides technical support for shale gas exploration and also lays the foundation for ensuring the accuracy of core gas content. This paper starts with the introduction of the characteristics of closed coring in Fan 1 and analyzes the application of closed coring technology in unconventional shale gas wells and its application effects.