桥塞与分簇射孔联作工艺及其在川渝页岩气区的应用
Well Logging Technology(2017)
Abstract
基于桥塞与分簇射孔联作工艺的基本原理和特点,重点阐述了该联作工艺配套的相关技术,包括封堵压裂桥塞、分簇射孔器、多级点火控制技术、泵送作业控制以及井口电缆防喷技术和泵送作业可视化辅助软件等.通过近年来在川渝地区各页岩气区块近200井次、4 000余段的泵送桥塞与分簇射孔作业,表明了该项工艺及配套技术已趋近成熟,具有很高的安全性、适用性和经济时效性.结合近年的实际作业情况提出了相关的建议.
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Key words
multi-cluster perforation,bridge plug,combined process,shale gas,pumping down
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