北32井区石炭系储层酸压裂技术研究  

Research on Acid Fracturing Technology to Stone Carbon Reservoir at the North32 Well Area

作　　者：陈效领 丁士辉 欧清银 秋英淑 

机构地区：[1]新疆油田井下作业公司,新疆克拉玛依834000

出　　处：《油气井测试》2012年第5期52-54,77-78,共3页Well Testing

摘　　要：新疆油田北32井区石炭系储藏属于低渗、微细喉道、火山岩油藏,储集空间主要为发生在充填于气孔中方解石上的溶蚀孔隙和微裂缝,各溶蚀孔隙连通性差,常规的压裂改造措施效果不明显。在分析了北32井石炭系储层地储集空间、物性、岩性和以往压裂改造存在问题的基础上,提出以多级注入酸压闭合酸化技术、胶凝酸液体系及配套的优化设计技术为基础的酸压裂改造技术,现场应用取得了明显的增产效果,为北32井区石炭系储藏高效开发生产提供了技术支撑。The North 32 District stone carbon reservoirs in Xinjiang oilfield well are low permeability, fine throats, volcanic reservoirs, of whose reservoir space are mainly pores and micro-cracks occurred in filling in calcite dissolution, and connection of every corrosion pore is poor, and the effect of conventional fracturing treatment measures is not obvious. Based on analyzing problems of reservoir space, physical properties, lithology and early fracturing treatment problems In North 32 wells stone carbon reservoir, the acid fracturing treatment technology based on multi-stage injection of acid of pressure closed acidification technology, gelling acid systems and supporting optimization technology, field application achieves a significant effect of increasing yield, which provides a technical support for efficient development and production to the stone carbon-based reservoir of North32 area.

关 键 词：低渗 火山岩 溶蚀孔 微裂缝 方解石充填 多级注入酸压 胶凝酸 

分 类 号：TE122.221[石油与天然气工程—油气勘探]