提高分压选压效果技术研究

STUDY OF IMPROVING THE EFFECT OF MULTIPLE FRACTURING AND SELECTIVE FRACTURING

陈惟国 孙敏 梁利平 孙良田 孙宜建

Chen Weiguo Sun Min Liang Liping Sun Liangtian Sun Yijian

中原油田公司井下特种作业处, 河南濮阳 457061 中原油田公司采油二厂, 河南濮阳 457061

针对中原油田油气井跨度大、射孔井段长、非均质性严重、层多层薄等特点,研究了提高分压选压效果技术。该技术从优化设计、完善分层压裂管柱和分压选压工艺3个方面进行了研究,找出了提高压裂效果的有效途径。该技术经现场应用和效果评价分析,取得了较好的经济效益和社会效益。

The oil-gas wells in ZhongYuan Oilfield possess commonly the characteristics of big span,long perforated interval,serious heterogeneity and multiple thin layers.For this reason,the technology of improving the effect of multiple fracturing and selective fracturing was studied in order to develop oil-gas zone better and increase fracturing effect.A deep study from three aspects,including optimum design,perfect multiple fracturing string and process of multiple fracturing and selective fracturing,and found an effective way to further improve fracturing effect.The technology has got a better economic and social benefit through on-site application and effect evaluation.

10.3969/j.issn.1000-7393.2003.04.022