缝洞型油藏自喷井合理产能确定方法研究  

STUDY ON METHOD OF DETERMINING REASONABLE PRODUCTIVITY OF SELF-BLOW-OUT WELL IN FRACTURED-CAVITY RESERVOIR

作　　者：张世亮[1] 李璐[1] 李柏颉 袁飞宇 ZHANG Shi-liang;LI Lu;LI Bo-jie(No.2 Oil Production Plant,Northwest Oilfield Branch of Sinopec,Luntai,Xinjiang,841604)

机构地区：[1]中国石化西北油田分公司采油二厂

出　　处：《新疆石油天然气》2019年第4期56-60,I0004,共6页Xinjiang Oil & Gas

摘　　要：塔河碳酸盐岩是经过多期构造破裂和古风化壳岩溶共同作用的缝洞型油气藏,储集空间主要有溶洞、裂缝及孔隙三种类型。其特点是不规则形态和非均匀分布,储层非均质性极强。实践中发现依据达西渗流规律建立的产能方程不能适用该类油藏开发,通过对缝洞型油藏自喷井渗流规律总结分析,建立了缝洞型油藏IPR曲线与二项式产能方程,能较好的描述缝洞型油藏局部非达西流下的产能特征,矿场应用效果较好。Tahe carbonate reservoir is a fractured-vuggy reservoir,which is composed of three types: karst cave,fracture and pore. It is characteristic of irregular shape and non-uniform distribution,besides,reservoir heterogeneity is very strong. It is found in practice that the productivity equation based on Darcy’s percolation law can not be applied to the development of such reservoirs. By summarizing and analyzing the percolation law of self-blow-out wells,the binomial productivity equation is established,which can better describe the productivity characteristics of fractured-cavern reservoirs under local non-Darcy flow,and the field application effect is good.

关 键 词：缝洞型油藏 产能方程 非达西渗流 水锥 合理产能 

分 类 号：TE344[石油与天然气工程—油气田开发工程]