长庆油田致密油老井体积压裂裂缝延伸机理研究

发布时间：2018-04-18 13:31

  本文选题：致密油藏 + 重复压裂　； 参考：《钻采工艺》2017年03期

【摘要】：体积压裂是致密油藏开发的重要手段之一,是随致密油气藏开发成长起来的一项新技术。文中为了提高已开发致密油藏的开发效果,将体积压裂理念引入已开发的老油田。针对长庆油田A3区块长7致密油藏,重点开展了应力模型计算、物理模拟实验、压力测试分析和井下微地震监测等研究,明确了老井体积压裂裂缝的延伸机理,确立了老井暂堵混合水压裂体积压裂技术,现场试验取得了较好的效果,为类似油井重复改造提供了新的技术手段。
[Abstract]:Volume fracturing is one of the most important methods for the development of tight reservoirs, and it is also a new technique developed with the development of tight reservoirs.In order to improve the development effect of developed compact reservoirs, the concept of volume fracturing is introduced into the developed old oil fields.For Chang7 tight reservoir in A3 block of Changqing Oilfield, stress model calculation, physical simulation experiment, pressure test analysis and downhole microseismic monitoring are carried out, and the extension mechanism of volume fracturing fracture in old well is clarified.The fracturing technology of temporary plugging and mixing water fracturing in old wells has been established, and good results have been obtained through field test, which provides a new technical means for repeated revamping of similar oil wells.
【作者单位】： 中国石油长庆油田分公司油气工艺研究院;低渗透油气田勘探开发国家工程实验室;中国石油长庆油田分公司第六采油厂;
【基金】：中石油科技项目“长庆油田5000万吨持续高效稳产关键技术研究与应用”(编号:2016E-0512)
【分类号】：TE357
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本文编号：1768572