让纳若尔油田投球分层酸压技术研究与应用  

Research and Application of Technique of Separate Layer Ball Injection Acidizing and Fracturing in Zhanazhol Oilfield

作　　者：蒋卫东[1] 邓金根[1] 阿布都.热西提 田立志[2] 

机构地区：[1]中国石油大学,北京102249 [2]CNPC-阿克纠宾油气股份公司,哈萨克斯坦阿克纠宾463022

出　　处：《油气井测试》2010年第4期5-7,共3页Well Testing

摘　　要：让纳若尔油田在区域构造上属于哈萨克斯坦滨里海盆地东缘隆起带上的一盐下古生界隆起。该油田储量丰富，但采油速度低，采出程度低，储层纵向上的非均质导致油层动用程度较差，单井产量低。通过研究储层剖面动用程度，优选分层酸压裂油井，筛选适合于让纳若尔油田碳酸盐岩储层酸压裂的液体体系，优化投球分层酸压裂工艺技术，建立了让纳若尔油田投球分层酸压裂改造配套技术。2006～2009年完成了现场实施28口井，并取得了很好的增产效果。Zhanazhol oilfield locates in a subsalt Palaeozoic uplift in the eastern uplift of a basin in Kazakstan.This oilfield has rich reserves but both the oil recovery rate and the ratio of total oil produced to OOIP are low;both flow rate of single well and producing reserves of the reservoir are low due to its vertical heterogeneousness.By studying the producing reserves,optimized selecting wells for separate layer acidizing and fracturing and fracturing liquids fitted to the carbonate reservoir in Zhanazhol oilfield,optimizing the techniques of separate layer ball injection acidizing and fracturing,a set of corollary techniques of separate layer ball injection acidizing and fracturing in Zhanazhol oilfield has been established.This set of techniques has been used in 28 wells from 2006 to 2009,and very good result of increasing production rate has been obtained.

关 键 词：碳酸盐岩储层 纵向非均质 投球分层酸压裂 

分 类 号：TE357[石油与天然气工程—油气田开发工程]