致密油层水平井缝间干扰因素及干扰界限  

INTERCRACK INTERFERING FACTORS AND LIMITS FOR THE HORIZONTAL WELL IN THE TIGHT OIL LAYERS

作　　者：张玉广[1] 杨东[2] 唐鹏飞[1] 张浩[1] 顾明勇[1] 李东旭[1] 

机构地区：[1]大庆油田有限责任公司采油工程研究院,黑龙江大庆163453 [2]大庆油田有限责任公司勘探事业部,黑龙江大庆163453

出　　处：《大庆石油地质与开发》2014年第5期240-244,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油天然气股份公司重大科技专项“大庆探区非常规油气勘探开发关键技术研究与现场试验”(2012E2603-08)

摘　　要：多缝压裂所造的裂缝虽起增产作用,但缝间干扰现象更明显,而且各参数的相互干扰很难全面分析确定.建立压裂裂缝数值模型模拟确定各参数的相关性,研究影响裂缝干扰的主次因素,确定不同储层条件下的干扰界限.研究认为：在其他参数一定时,缝间干扰随原油流度和压力系数的增加而增加;裂缝长度对缝间干扰很小,可以忽略不计.研究成果对水平井压裂裂缝参数优化具有重要指导意义。Although the simulating effects have been achieved for the fractures in multi-seam fracturing,the intercrack interference becomes more obvious,and even wore the interference phenomena among each parameter are difficult to conduct the comprehensive and systematical analysis and determination.The relevance of each parameter is made clear with the help of the established fracture numerical stimulating model,the primary and secondary affecting factors for the crack interferences are researched,the interference limits under different reservoir conditions are determined.The studies show that the interferences increase with the rises of the oil mobility and pressure coefficient while the other parameters are in certain ; there are so less interferences among the cracks for the crack lengths that they can be ignored.All the achievements stated above possess important guiding significance for the crack parameters optimization for the horizontal well fracturing.

关 键 词：特低渗透 致密油藏 缝间干扰 影响因素 水平井 压裂参数优化 大庆油田 

分 类 号：TE357[石油与天然气工程—油气田开发工程]