大庆长垣油田三次采油储量转移后水驱开发指标变化趋势  

Changed trend of the waterflooding developing indexes after the reserves transfer of tertiary oil recovery in Daqing Placanticline Oilfields

作　　者：吴晓慧[1] 冯程程[1] 赵云飞[1] 刘海鸥 冯敏[3] WU Xiaohui;FENG Chengcheng;ZHAO Yunfei;LIU Haiou;FENG Min(Exploration and Development Research Institute of Daqing Oilfield Co Ltd,Daqing 163712,China;No.3 Oil Production Plant of Daqing Oilfield Co Ltd,Daqing 163113,China;No.4 Oil Production Plant of Daqing Oilfield Co Ltd,Daqing 163511,China)

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [2]大庆油田有限责任公司第三采油厂,黑龙江大庆163113 [3]大庆油田有限责任公司第四采油厂,黑龙江大庆163511

出　　处：《大庆石油地质与开发》2019年第6期66-70,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家科技重大专项“高含水油田提高采收率技术”(2011ZX05010)

摘　　要：大庆长垣油田多驱替方式并存,随着三次采油规模不断扩大,三次采油储量转移对水驱指标影响也相应增大。根据油藏工程基本原理,从研究多层非均质油藏开发特征出发,采用结构分析方法定性分析了储量转移对水驱产量递减率和含水上升速度的影响,并建立了定量计算方法。应用测试资料测算了不同储量转移规模对水驱产量的影响。结果表明:在转移储量规模一定条件下,对水驱产液量影响随含水升高逐渐增加,对水驱产油量的影响随含水升高逐渐减小;每年储量转移(0.3~0.5)×10^8t,影响水驱产液量(276~460)×10^4t,影响水驱产油量(15~25)×10^4t。研究成果可以优化水驱和聚合物驱产量结构,为提高油田整体效益、合理制定油田开发规划方案提供科学依据。Multiple displacing modes coexist in Daqing Placanticline Oilfields. With the continuous expansion of the tertiary oil recovery scale, the influence of the tertiary-oil-recovery reserves transfer on the water flooding index increases correspondingly. Based on the basic principles of oil reservoir engineering, from the viewpoint of studying the development characteristics of the multi-layer heterogeneous reservoirs, and with the help of structural analysis method, the effects of the reserve transfer on the waterflooded production decline rate and watercut rise rate were quantitatively analyzed, and moreover the quantitative calculating method was established. By means of the tested data, the effects of different reserve-transfer scales on the waterflooded production were measured. The results show that under a certain scale of the transfer reserves, with the increase of the water cut, the impact on the waterflooded liquid production will gradually increase, while the impact on the waterflooded oil production will gradually decrease;for 30-50 million tons of the reserves transfer per year, the influence on the waterflooded liquid production will be 2.76-4.60 million tons, while the influence on the waterflooded oil production will be 0.15-0.25 million tons. This research results can optimize the waterflooded and polymer-flooded production structures, and furthermore provide the scientific evidences for improving the overall benefit of the oilfields and compiling the rational development plan of the oilfields.

关 键 词：大庆长垣油田 三次采油 储量转移 非均质油藏 产油量 产液量 含水率 

分 类 号：TE341[石油与天然气工程—油气田开发工程]