致密油直井多层缝网压裂产能预测方法  

Productivity Forecast of Vertical Well with Multi-Layer Network Fracturing in Tight Oil Reservoir

作　　者：史晓东[1,2] 

机构地区：[1]东北石油大学,黑龙江大庆163318 [2]中国石油大庆油田有限责任公司,黑龙江大庆163712

出　　处：《特种油气藏》2017年第1期124-127,共4页Special Oil & Gas Reservoirs

基　　金：国家科技重大专项"松辽盆地致密油开发示范工程"(2016ZX05071)

摘　　要：大庆油田垂向多层发育、主力层不突出的致密油储层,采用直井细分层大规模缝网压裂的开发方式取得了较好的生产效果。针对直井缝网压裂产能预测方法不成熟、常规计算方法误差较大的问题,结合致密油储层地质特征和渗流特征,通过裂缝基质流动耦合求解,建立一种考虑储层垂向非均质性的致密油直井多层缝网压裂产能预测方法。与实际产量对比,该方法预测符合率可达90%以上。该方法对于指导致密油开发方案编制以及理论研究具有重要意义。Multi-layer tight oil reservoirs without prominent major layers develop in the longitudinal direction of Daqing Oilfield and favorable production is gained by large-scale network fracturing with stratum subdivision in verti- cal well. Due to the immature productivity forecast and relatively large forecast error in vertic＇,d well with network frac- turing, the tight oil reservoir geology and flow mechanism are considered to develop a productivity forecast method considering longitudinal reservoir heterogeneity through coupling solution of fracture-matrix fluid flow. The consistency of forecasted production with field actual production data exceeds 90%. This productivity forecast method could pro- vide significant guidance for the development program preparation and theoretical research in tight oil reservoir.

关 键 词：致密油 多层 直井 缝网压裂 产能预测 大庆油田 

分 类 号：TE348[石油与天然气工程—油气田开发工程]