A Method to Determine the Layered Injection Allocation Rates for Water Injection Wells in High Water Cut Oilfield Based on Displacement Quantitative Characterization
-
摘要: 多层合采油藏进入高含水期之后，由于层间驱替程度差异加大，导致常用分层配注方法的效果变差。为此，在分析多层合采油藏长期注水开发特点的基础上，提出采用驱替通量定量表征各层驱替程度差异的方法，并以均衡驱替为目标，综合考虑储层厚度、孔隙度、注水历史、调控周期等因素的影响，建立了基于驱替通量均衡化思想的注水井纵向各层配注量确定方法。运用精细油藏数值模拟方法分析了厚度法、地层系数法、剩余油法和基于驱替定量表征的均衡驱替方法在不同含水阶段的适应性。数值模拟结果显示，含水率小于50%时，推荐采用厚度法；含水率为50%~80%时，推荐采用剩余油法；含水率为80%~90%时，推荐采用均衡驱替法。渤海SZ油田X1井组在高含水期采用均衡法调整配注量，调整后井组平均含水率下降4%，日增油117 m3，降水增油效果显著。研究结果表明，基于驱替定量表征的分层配注量确定方法可用于指导高含水期多层合采油藏注水井各层配注量的调整。Abstract: After reservoirs with multi-layer commingled production enter the high water cut stage,the interlayer displacement disparity is increased and the effect of commonly used layered injection allocation method is deteriorated.Through the analysis of the characteristics of long-term water flooding in reservoirs,a quantitative characterization method using displacement flux to describe the displacement disparity among each layer was put forward.Aiming at balancing the displacement,a new method was established to determine the injection allocation rates for water injection wells based on the idea of displacement flux balance,which took into consideration the influence of reservoir thickness,porosity,water injection history and adjustment cycle.The fine reservoir numerical simulation technique was used to analyze the adaptability of thickness method,formation coefficient method,remaining oil method and the new method at different water cut stages.Numerical simulation results showed that the thickness method is to be recommended when the water cut is less than 50%.When the water cut is from 50% to 80%,the remaining oil method is recommended,and when the water cut is in the range of 80%-90%,the new method can be recommended.The new method was applied to the well group X1 in the Bohai SZ Oilfield as the pilot test and had significant effect,with the average water cut decreased by 4% and daily oil production increased by 117 m3.The research results indicated that the new layered injection allocation method with displacement quantitative characterization could be effective in guiding the optimization and adjustment of the allocations rates in reservoirs under high water cut stage.
-
-
[1] 黄世军,康博韬,程林松,等.海上普通稠油油藏多层合采层间干扰定量表征与定向井产能预测[J].石油勘探与开发,2015,42(4):488-495. HUANG Shijun,KANG Botao,CHENG Linsong,et al.Quantitative characterization of interlayer interference and productivity prediction of directional wells in the multilayer commingled production of ordinary offshore heavy oil reservoirs[J].Petroleum Exploration and Development,2015,42(4):488-495. [2] 苏彦春.海上大井距多层合采稠油油田剩余油定量描述技术及其应用[J].中国海上油气,2012,24(s1):82-85. SU Yanchun.A set of techniques to describe quantitatively remaining oil in offshore heavy oilfields under commingling production in large well spacing[J].China Offshore Oil and Gas,2012,24(supplement 1):82-85. [3] 罗宪波,赵春明,武海燕,等.海上油田多层合采层间干扰系数确定[J].大庆石油地质与开发,2012,31(5):102-104. LUO Xianbo,ZHAO Chunming,WU Haiyan,et al.Determination of the interference coefficient among the commingled production layers in offshore oilfield[J].Petroleum Geology Oilfield Development in Daqing,2012,31(5):102-104. [4] 许家峰,张金庆,程林松,等.多层合采砂岩稠油油藏层间干扰动态表征及应用[J].中国海上油气,2016,28(4):48-54. XU Jiafeng,ZHANG Jinqing,CHENG Linsong,et al.The dynamic characterization and application of interlayer interference for sandstone heavy oil multilayer commingled producing[J].China Offshore Oil and Gas,2016,28(4):48-54. [5] 苏彦春,贾晓飞,李云鹏,等.多层合采油藏层间动态干扰定量表征新技术[J].特种油气藏,2015,22(6):101-103. SU Yanchun,JIA Xiaofei,LI Yunpeng,et al.New technology for quantitative characterization of interlayer dynamic interference in commingled producing oil reservoir[J].Special Oil Gas Reservoirs,2015,22(6):101-103. [6] 贾晓飞,苏彦春,邓景夫,等.多层合采砂岩油藏动态干扰及其影响因素[J].断块油气田,2016,23(3):334-337. JIA Xiaofei,SU Yanchun,DENG Jingfu,et al.Interlayer dynamic interference caused by commingled production and its influencing factors on sandstone reservoir[J].Fault-Block Oil Gas Field,2016,23(3):334-337. [7] 王波.高含水油田分层注水优化研究[D].青岛:中国石油大学(华东),2015. WANG Bo.Optimization of separate zone water injection in the high water-cut oilfield[D].Qingdao:China University of Petroleum (Huadong),2015. [8] 叶剑川.分层注水配注量计算与优化研究[D].武汉:长江大学,2014. YE Jianchuan.Study on the method of calculation and optimization of separated layer water flooding amount[D].Wuhan:Yangzte University,2014. [9] 贾晓飞,李其正,杨静,等.基于剩余油分布的分层调配注水井注入量的方法[J].中国海上油气,2012,24(3):38-40. JIA Xiaofei,LI Qizheng,YANG Jing,et al.A method to allocate injection volume for separate layers in a water-injection well based on the remaining oil distribution[J].China Offshore Oil and Gas,2012,24(3):38-40. [10] 吴家文,王家春,刘剑,等.基于剩余油分布的分层注水方案优选[J].大庆石油学院学报,2006,30(4):12-15. WU Jiawen,WANG Jiachun,LIU Jian,et al.Optimization method for layered water injection project based on the distribution of remaining oil[J].Journal of Daqing Petroleum Institute,2006,30(4):12-15. [11] 贾晓飞,马奎前,李云鹏,等.基于剩余油分布的分层注水井各层配注量确定方法[J].石油钻探技术,2012,40(5):72-76. JIA Xiaofei,MA Kuiqian,LI Yunpeng,et al.Injection allocation determination method for separate injection well based on remaining oil distribution[J].Petroleum Drilling Techniques,2012,40(5):72-76. [12] 尹洪军,张俊廷,张欢欢,等.应用灰色关联分析方法确定分层注水量公式[J].数学的实践与认识,2012,42(13):94-99. YIN Hongjun,ZHANG Junting,ZHANG Huanhuan,et al.Appling grey correlation analysis method to determine the separated layer water injection[J].Mathematics in Practice and Theory,2012,42(13):94-99. [13] 张玉荣.分层注水储层参数变化机理与配注参数动态调配方法研究[D].大庆:东北石油大学,2011. ZHANG Yurong.Research on mechanism of reservoir parameter variation under the condition of layered water injection and dynamic allocation method of injection allocation parameters[D].Daqing:Northeast Petroleum University,2011. [14] 杜庆龙,朱丽红.油、水井分层动用状况研究新方法[J].石油勘探与开发,2004,31(5):96-98. DU Qinglong,ZHU Lihong.A new approach to study layered producing performance of oil and water wells[J].Petroleum Exploration and Development,2004,31(5):96-98. [15] 石晓渠,马道祥.注水井合理配注水量计算方法研究[J].西部探矿工程,2008,20(9):94-96. SHI Xiaoqu,MA Daoxiang.Study on calculation method of reasonable water injection in water injection well[J].West-China Exploration Engineering,2008,20(9):94-96. [16] 冯其红,王相,王端平,等.水驱油藏均衡驱替开发效果论证[J].油气地质与采收率,2016,23(3):83-88. FENG Qihong,WANG Xiang,WANG Duanping,et al.Theoretical analysis on the performance of equilibrium displacement in water flooding reservoir[J].Petroleum Geology and Recovery Efficiency,2016,23(3):83-88. [17] 张士奇,周志军,张小静,等.双河油田注水倍数和驱替倍数对采出程度影响[J].特种油气藏,2014,21(3):93-96. ZHANG Shiqi,ZHOU Zhijun,ZHANG Xiaojing,et al.Influence of water injection ratio and displacement multiplier on Shuanghe oilfield[J].Special Oil Gas Reservoirs,2014,21(3):93-96. [18] 焦龙.S油田特高含水期驱替倍数对驱油效果的影响研究[D].大庆:东北石油大学,2014. JIAO Long.The research on the influence of displacement multiplier on oil displacement efficiency in extra high water cut period of S Oilfield[D].Daqing:Northeast Petroleum University,2014. [19] JACKSON M D,VALCATENE P H,BLUNT M J.Prediction of wettability variation and its impact on flow using pore-to reservoir-scale simulations[J].Journal of Petroleum Science Engineering,2003,39(3-4):231-246.
-
期刊类型引用(8)
1. 刘智勤，徐加放，彭巍，徐超，于晓东. 陵水区块超深水高性能恒流变油基钻井液技术. 钻井液与完井液. 2024(02): 184-190 . 
百度学术
2. 胡南丁，杨进，于辰，包苏都娜，周健一，王佳康，丁益达. 海上钻井表层导管表面摩擦力变化机理研究. 石油机械. 2022(01): 75-80 . 百度学术
3. 熊亮，谢文卫，张伟，于浩雨. 跟管钻进下套管技术在大洋钻探中的应用. 探矿工程(岩土钻掘工程). 2020(07): 16-22+35 . 百度学术
4. 王腾，何家龙，刘锦昆. 管土界面摩擦疲劳效应对深水井口导管贯入阻力的影响. 岩土工程学报. 2020(08): 1532-1539 . 百度学术
5. 邓玉明，刘正礼，赵维青，赵苏文. 南海深水钻井导管水下打桩可打性评估. 天然气与石油. 2020(06): 86-91 . 百度学术
6. 刘正礼，严德. 南海东部荔湾22–1–1超深水井钻井关键技术. 石油钻探技术. 2019(01): 13-19 . 本站查看
7. 耿铁，邱正松，汤志川，赵欣，苗海龙. 深水钻井抗高温强抑制水基钻井液研制与应用. 石油钻探技术. 2019(03): 82-88 . 本站查看
8. 张俊成，李忠慧，彭昊，胡尹凌，李志强. 深水环境下钻井面临的难点与解决对策. 山东化工. 2018(14): 104-107 . 百度学术
其他类型引用(6)
计量
- 文章访问数: 1738
- HTML全文浏览量: 140
- PDF下载量: 2090
- 被引次数: 14
下载:
