浅层裂缝性致密油藏缝网压裂技术  

FRACTURE-NETWORK FRACTURING TECHNOLOGY IN THE SHALLOW FISSURED TIGHT-OIL RESERVOIR

作　　者：王越[1] 何青[1] 陈付虎[1] 郭新文 高志军[1] 王帆[1] 

机构地区：[1]中石化华北分公司工程技术研究院,河南郑州450006 [2]中国石油尼罗河公司,北京100034

出　　处：《大庆石油地质与开发》2015年第2期99-102,共4页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家重大专项"大型油气田和煤层气开发"(2011ZX05045-03-03)

摘　　要：缝网压裂技术在基质渗透率极低、天然裂缝发育的致密油藏开发中有独到优势。利用数理分析方法研究了缝网压裂工艺的适用条件,认为储层天然裂缝发育和净压力大于水平最大、最小主应力之差是实施缝网压裂的必要条件。优化了压裂液、支撑剂、施工参数,并在J-10井进行了试验。净压力拟合结果表明,压裂后形成了裂缝网络系统,试验井日产油2t,取得了较好的改造效果。There are unique advantages for fracture-network fracturing in the development of the tight oil reservoirs characterized by ultra-low matrix permeability and well-developed natural fractures. With the help of the mathematical analyzing method, the applied conditions of the fracture-network fracturing technology are researched. The well- developed natural fissures in the reservoir and net pressure greater than the difference between the maximum and minimum horizontal stresses are considered to be the necessary conditions. The fracturing fluid, proppants and operating parameters were optimized, and moreover the field test was carried out in Well J-10. The results of the net pressure matching show that the fracture-network system was formed after the fracturing, the daily oil output was 2 t, so the much better stimulation effects were obtained.

关 键 词：裂缝网络 致密油藏 延长组 压裂技术 缝网压裂 鄂尔多斯盆地 净压力拟合 应力 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]