An Experimental Study of Enhanced Foam Systems Used in High Temperature and High Salinity Bottom Water Reservoirs
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摘要: 我国底水油藏储量丰富,底水油藏的开发面临底水脊进的问题.泡沫具有视黏度高和选择性封堵能力,能够在底水油藏开发过程中起到压脊作用.为了得到压脊效果较好的强化泡沫,首先通过室内试验评价泡沫综合指数,筛选出了较好的起泡剂SA、DR和AM;然后进行了起泡剂的复配试验,筛选出4种泡沫综合指数较高的普通泡沫体系;为增强普通泡沫体系在高温高盐条件下的稳定性,加入聚合物稳泡剂,得到了强化泡沫体系.在模拟实际油藏条件下,对强化泡沫体系进行了7,14,21和28 d的老化试验,筛选出热盐稳定性较好、可用于现场的0.15%AM+0.05%DR+0.20%WP4强化泡沫体系.平板试验结果表明,强化泡沫体系的压脊效果比普通泡沫体系好,采收率提高明显.Abstract: Oil reservoirs that contain bottom water are abundant in China. However, the development of such reservoir is challenged by bottom water coning and ways of controlling it. Foam has the property of high apparent viscosity and high selective plugging ability, and it can have obvious pressure ridge effect in the development of bottom water reservoir. For the foams more effective, the better foaming agents SA, DR, AM were screened out through lab tests and by evaluating the foam composite index. Meanwhile, tests for compound of the foaming agents were conducted and four kinds of common foam system of high foam composite index were selected. In order to enhance the stability of common foam systems under the conditions of high temperature and high salinity, a polymer stabilizing foam agent was added and an enhanced foam system was formed. Under the simulated conditions of actual reservoir, aging tests were conducted for enhanced foam systems, for 7 days, 14 days, 21 days and 28 days. Finally, the enhanced foam system of 0.15%AM+0.05%DR+0.2%WP4 was selected for its better stability under high temperature and high salinity and applicability on rig site. The result of the flat model test showed that the pressure ridge effect of the enhanced foam system was better than the common foam system in high temperature and high salinity bottom water reservoirs, and improving the recovery rate apparently.
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[1] 程林松,郎兆新,张丽华.底水驱油藏水平井锥进的油藏工程研究[J].石油大学学报:自然科学版,1994,18(4):43-47. Cheng Linsong,Lang Zhaoxin,Zhang Lihua.Reservoir engineering problem of horizontal wells coning in bottom-water drive reservoir[J].Journal of the University of Petroleum,China:Edition of Natural Science,1994,18(4):43-47. [2] 范子菲.底水驱动油藏水平井临界产量公式及其变化规律研究[J].石油勘探与开发,1994,21(1):66-71. Fan Zifei.A study of critical rate of a horizontal well in a reservoir with bottom-water drive[J].Petroleum Exploration and Development,1994,21(1):66-71. [3] 刘佳,程林松,黄世军.底水油藏水平井开发物理模拟实验研究[J].石油钻探技术,2013,41(1):87-92. Liu Jia,Cheng Linsong,Huang Shijun. Physical modeling and experiment for horizontal wells in bottom water reservoir[J].Petroleum Drilling Techniques,2013,41(1):87-92. [4] 周代余,江同文,赵金洲,等.底水油藏水平井临界产量及其不确定性分析[J].钻采工艺,2005,28(1):33-36. Zhou Daiyu,Jiang Tongwen,Zhao Jinzhou,et al.The uncertainty and prediction of critical output of horizontal wells in bottom water reservoir[J].Drilling and Production Technology,2005,28(1):33-36. [5] 刘欣颖,胡平,程林松,等.水平井开发底水油藏的物理模拟试验研究[J].石油钻探技术,2011,39( 2):96-99. Liu Xinying,Hu Ping,Cheng Linsong,et al. Experimental study of horizontal well with bottom water drive[J].Petroleum Drilling Techniques,2011,39 (2):96-99. [6] 窦宏恩.水平井开采底水油藏临界产量的计算[J].石油钻采工艺,1997,19(3):70-75. Dou Hongen.Calculation of criticalflow rate for horizontal well in bottom-water oil reservoir[J].Oil Production Production Technology,1997,19(3):70-75. [7] 涂彬,韩洁,孙键.厚层底水油藏油井临界产量计算方法[J].石油钻探技术,2014,42(4):107-110. Tu Bin,Han Jie,Sun Jian. A calculation method of critical production for oil wells in thick reservoirs with bottom water[J].Petroleum Drilling Techniques,2014,42(4):107-110. [8] Jiang Q,Butler R M,牛宝荣.水平井底水锥进试验和数值模拟[J].国外油田工程,1999,22(6):18-23. Jiang Q,Builder R M,Niu Baorong.Bottom-water coning experiment and numerical simulation[J].Foreign Oilfield Engineering,1999,22(6):18-23. [9] Guo G B,Lee R L.An exact solution to critical oil rate of horizontal wells with gas-oil interface dipping[R].SPE 23555,1991.
[10] Guo Boyun,Molinard J-E,Lee R L.A general solution of gas/water coning problem for horizontal wells[R].SPE 25050,1992.
[11] Chan K S.Water control diagnostic plots[R].SPE 30775,1995.
[12] 马天态.底水油藏氮气泡沫流体压水锥技术研究[D].青岛:中国石油大学(华东)石油工程学院,2007. Ma Tiantai.Study on the technology of pushing water coning with nitrogen foam fluid in bottom water reservoir[D].Qingdao:China University of Petroleum(Huadong),School of Petroleum Engineering,2007. [13] 宫汝祥,赵利昌.氮气泡沫压脊参数优化的正交值试验[J].海洋石油,2013,33(2):64-67. Gong Ruxiang,Zhao Lichang.Orthogonal numerical test of injection and production parameter optimization for nitrogen foam anti-water-coning[J].Offshore Oil,2013,33(2):64-67. [14] 钟双飞,缑新俊.泡沫稳定性能评价及泡沫分流效果试验研究[J].西南石油学院学报,2003,25(1):65-66. Zhong Shuangfei,Gou Xinjun,Foam stability evaluation and experiment study of diverting effect[J].Journal of Southwest Petroleum Institute,2003,25(1):65-66. [15] 杨昌华,邓瑞健,董俊艳,等.濮城油田沙一下油藏CO2泡沫封窜体系研究与应用[J].断块油气田,2014,21(1):118-120. Yang Changhua,Deng Ruijian,Dong Junyan,et al.CO2 foam sealing channeling system research and application in Pucheng Es1 reservoir[J].Fault-Block Oil Gas Field,2014,21(1):118-120. [16] 李海波,侯吉瑞,李巍,等.碳酸盐岩缝洞型油藏氮气泡沫驱提高采收率机理可视化研究[J].油气地质与采收率,2014,21(4):93-96,106. Li Haibo,Hou Jirui,Li Wei,et al.Laboratory research on nitrogen foam injection in fracture-vuggy reservoir for enhanced oil recovery[J].Petroleum Geology and Recovery Efficiency,2014,21(4):93-96,106. [17] 张艳辉,戴彩丽,徐星光,等.河南油田氮气泡沫调驱技术研究与应用[J].断块油气田,2013,20(1):129-132. Zhang Yanhui,Dai Caili,Xu Xingguang,et al.Research and application on nitrogen foam flooding in Henan Oilfield[J].Fault-Block Oil Gas Field,2013,20(1):129-132. [18] 庞占喜,程林松,陈月飞,等.常规稠油底水油藏氮气泡沫控制水锥技术研究[J].石油学报,2007,28(5):99-103. Pang Zhanxi,Cheng Linsong,Chen Yuefei,et al.Study on nitrogen foam anti-water-coning technology for conventional heavy oil reservoir[J].Acta Petrolei Sinica,2007,28(5):99-103. [19] 付继彤,张莉,尹德江,等.强化泡沫的封堵调剖及现场试验[J].油气地质与采收率,2005,12(5):47-49. Fu Jitong,Zhang Li,Yin Dejiang,et al.The performance of plugging and profile control and field experiment of enhanced foam[J].Petroleum Geology and Recovery Efficiency,2005,12(5):47-49. [20] 方吉超,戴彩丽,由庆,等.塔中402CⅢ高温高盐油藏泡沫驱实验研究[J].油气地质与采收率,2014,21(4):84-88. Fang Jichao,Dai Caili,You Qing,et al.Study on foam flooding in high-temperature and high-salinity reservoir of Tazhong 402CⅢ[J].Petroleum Geology and Recovery Efficiency,2014,21(4):84-88.
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