摘要
大庆油田致密砂岩油藏分布面积广、储层物性差、直井产量低,致密油藏水平井分段多簇大型压裂能增大泄油面积,提高原油流动效率,增加单井产能.针对此类致密储层压裂后评价产能、实现长期稳产高产和经济有效动用的迫切需求,通过分析不同求产阶段的渗流机理和产能变化规律,形成了压裂后产能评价技术.10口井的预测结果与实际产量基本相符表明,产能预测技术能够进行长期产能预测,并为制定和调整致密油藏试采方案提供依据。
The tight sandstone oil reservoirs in Daqing Oilfield are characterized by a wide area of distribution,poor reservoir properties and low production for the vertical wells,the adopted horizontal wells with segmented multi-cluster large-scale fracturing in the reservoirs can increase the drainage area,enhance the oil flow efficiency and rise up the productivity of the individual well.In the light of the urgent requirements of productivity evaluation,realization of long-term high and stable productions and moreover effective development after the fracturing,with the help of the analyzing the seepage mechanisms and changed laws of the productivity in different production stages,the evaluating technique after the fracturing is developed.The basic coordinance between the predicted results of 10 wells and actual productions shows that the technique can predict the long-tern productivity,and furthermore can present the evidences for the determination and adjustment of the well testing and producing programs of the tight oil reservoirs.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2014年第5期245-248,共4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)
关键词
致密砂岩油藏
水平井
大型压裂
试油试采
产能评价
应用
大庆油田
tight sandstone oil reservoir
horizontal well
large-size/scale fracturing
well test and production
productivity evaluation
application
Daqing Oilfield
