大庆油田密井网水平裂缝参数的优选  

OPTIMIZATION OF PARAMETERS FOR HORIZONTAL HYDRAULIC FRACTURES OF DENSE WELL PATTERN IN DAQING OILEIELD

作　　者：张士诚[1] 魏明臻 李志恩[2] 相荣成[2] 张有才[2] 

机构地区：[1]石油大学石油工程系,北京102200 [2]大庆石油管理局井下地质工程研究所

出　　处：《石油大学学报（自然科学版）》1999年第6期36-38,56,共4页Journal of the University of Petroleum,China(Edition of Natural Science)

基　　金：中国石油天然气集团公司"九五"攻关项目

摘　　要：根据三次加密后油层改造的实际需要，建立了五点和反九点井冈条件下三维两相带有水平裂缝的油藏数值模拟模型，研究了水平裂缝半径和导流能力对油井产量、无水期采收率和最终采收率等指标的影响，优化了水平裂缝参数。研究结果表明，合理的裂缝半径应为井距的２０％，导流能力为２０μm·ｃm。该结果为油井经三次加密后的水力压裂设计提供了理论依据。This paper establishes a three-dimensional two-phase simulation model for reservoir with horizontal hydraulic fractures under the conditions of five-spot and inverted nine-spot pattern. The effects of horizontal fracture radius and fracture conductivity on oil well rate, breakthrough time and ultimate recovery factor are studied. The optimum radius of horizontal fracture should be 20% of well space, and the conductivity is 20 m2 cm. This conclusion can provide a theoretical foundation for the hydraulic fracturing design after tertiary infill of drilling well.

关 键 词：大庆油田 水力压裂 水平裂缝 密井网 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程] TE357.11