水驱油高倍驱替实验驱油效率计算新方法
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第 26 卷第 5 期
断块油气田 FAULT鄄BLOCK OIL 驭 GAS FIELD
2019 年 9 月
doi:10.6056/dkyqt20百度文库905012
水驱油高倍驱替实验驱油效率计算新方法
鲁瑞彬袁胡琳袁刘双琪袁王雯娟袁汤明光
渊中海石油渊中国冤有限公司湛江分公司袁广东 湛江 524057冤
基金项目院中海石油渊中国冤有限公司科技联合攻关项目野水驱油藏储层参数时变机理与表征方法研究冶渊YXKY轧2017轧ZJ轧01冤
目前袁室内实验多依据行业标准叶岩石中两相渗流 相对渗透率测定方法曳咱10暂进行常规水驱油相渗测定袁通
常驱替倍数较低袁难以完全模拟地层实际冲刷强度遥即 使部分研究者开展了高倍驱替实验袁 但仍存在驱替倍 数不够或高倍驱替后出油量难以计量等问题袁 进而导 致驱油效率计算不准确咱11轧15暂遥 常规实验岩心冲刷强度 与油藏开发实际差异较大袁难以准确表征尧模拟油田开 发过程袁这一矛盾随着油藏进入开发后期越发凸显遥因 此袁 为了更好地明确水驱油藏开发中后期流体渗流特
中图分类号院TE311
文献标志码院A
A new method for calculating oil displacement efficiency of high water flooding displacement experiment
LU Ruibin, HU Lin, LIU Shuangqi, WANG Wenjuan, TANG Mingguang (Zhanjiang Branch of CNOOC Ltd., Zhanjiang 524057, China)
收稿日期院2019轧03轧24曰改回日期院2019轧07轧09遥 第一作者院鲁瑞彬袁男袁1989 年生袁工程师袁硕士袁主要从事开发实 验及油气田开发规划方面的研究遥 E鄄mail院lurb4@cnooc.com.cn遥
摘 要 针对常规驱替实验难以真实模拟油藏开发实际的问题袁开展了水驱油高倍驱替实验研究遥联合应用红外测油仪和 蒸馏法渊2 种方法相互补充验证冤袁解决了高倍驱替出油量难以计量的问题袁并设计针对性实验袁证明了这一方法的准确性曰 利用面通量指标袁对比分析了驱替实验和油藏开发实际中冲刷强度尧驱替速度上的差异袁为驱替实验设计提供了强有力的 支撑曰同时获得了较强冲刷强度下储层物性和面通量的定量关系式袁应用到数值模拟中袁可研究剩余油分布规律袁指导油藏 开发调整遥 文中形成的高倍驱替驱油效率计算方法在南海西部油田应用效果较好遥 关键词 驱油效率曰高倍驱替曰红外测油仪曰蒸馏法曰面通量
0 引言
南海西部部分油藏已进入高含水阶段袁 个别油藏 进入特高含水期袁开发生产中不断涌现各种复杂问题咱1轧2暂院 部分天然能量充足的海相砂岩油藏出现采出程度接 近袁甚至高于短岩心常规水驱实验驱油效率咱3暂曰高含水 阶段油藏不同区域含水饱和度差异较大咱4轧6暂曰同一区域 油水驱替过程复杂袁水驱油尧油驱水交替出现袁且由于 长期冲刷作用袁造成储层物性不断发生变化咱7轧9暂遥
Abstract: Aiming at the problem that the conventional displacement experiment is difficult to simulate the actual development of the reservoir, the experimental study on high displacement of water flooding oil was carried out. In this study, infrared oil detector and distillation method (two methods complement each other) were used to solve the problem of difficult measurement of high displacement oil volume. The accuracy of this method has been proved by designing pertinent experiments. By using surface flux index, the differences of scouring intensity and displacement speed between displacement experiment and reservoir development practice were compared and analyzed, which provided a strong support for displacement experiment design. At the same time, the quantitative relationship between reservoir physical properties and areal flux under strong scouring intensity was obtained, which can be applied to numerical simulation to study remaining oil distribution law and guide reservoir development adjustment. The calculation method of oil displacement efficiency for high displacement experimental is better in the western oil field of South China Sea. Key words: oil displacement efficiency; high鄄ratio oil displacement; infrared oil content analyzer; distillation method; areal flux
断块油气田 FAULT鄄BLOCK OIL 驭 GAS FIELD
2019 年 9 月
doi:10.6056/dkyqt20百度文库905012
水驱油高倍驱替实验驱油效率计算新方法
鲁瑞彬袁胡琳袁刘双琪袁王雯娟袁汤明光
渊中海石油渊中国冤有限公司湛江分公司袁广东 湛江 524057冤
基金项目院中海石油渊中国冤有限公司科技联合攻关项目野水驱油藏储层参数时变机理与表征方法研究冶渊YXKY轧2017轧ZJ轧01冤
目前袁室内实验多依据行业标准叶岩石中两相渗流 相对渗透率测定方法曳咱10暂进行常规水驱油相渗测定袁通
常驱替倍数较低袁难以完全模拟地层实际冲刷强度遥即 使部分研究者开展了高倍驱替实验袁 但仍存在驱替倍 数不够或高倍驱替后出油量难以计量等问题袁 进而导 致驱油效率计算不准确咱11轧15暂遥 常规实验岩心冲刷强度 与油藏开发实际差异较大袁难以准确表征尧模拟油田开 发过程袁这一矛盾随着油藏进入开发后期越发凸显遥因 此袁 为了更好地明确水驱油藏开发中后期流体渗流特
中图分类号院TE311
文献标志码院A
A new method for calculating oil displacement efficiency of high water flooding displacement experiment
LU Ruibin, HU Lin, LIU Shuangqi, WANG Wenjuan, TANG Mingguang (Zhanjiang Branch of CNOOC Ltd., Zhanjiang 524057, China)
收稿日期院2019轧03轧24曰改回日期院2019轧07轧09遥 第一作者院鲁瑞彬袁男袁1989 年生袁工程师袁硕士袁主要从事开发实 验及油气田开发规划方面的研究遥 E鄄mail院lurb4@cnooc.com.cn遥
摘 要 针对常规驱替实验难以真实模拟油藏开发实际的问题袁开展了水驱油高倍驱替实验研究遥联合应用红外测油仪和 蒸馏法渊2 种方法相互补充验证冤袁解决了高倍驱替出油量难以计量的问题袁并设计针对性实验袁证明了这一方法的准确性曰 利用面通量指标袁对比分析了驱替实验和油藏开发实际中冲刷强度尧驱替速度上的差异袁为驱替实验设计提供了强有力的 支撑曰同时获得了较强冲刷强度下储层物性和面通量的定量关系式袁应用到数值模拟中袁可研究剩余油分布规律袁指导油藏 开发调整遥 文中形成的高倍驱替驱油效率计算方法在南海西部油田应用效果较好遥 关键词 驱油效率曰高倍驱替曰红外测油仪曰蒸馏法曰面通量
0 引言
南海西部部分油藏已进入高含水阶段袁 个别油藏 进入特高含水期袁开发生产中不断涌现各种复杂问题咱1轧2暂院 部分天然能量充足的海相砂岩油藏出现采出程度接 近袁甚至高于短岩心常规水驱实验驱油效率咱3暂曰高含水 阶段油藏不同区域含水饱和度差异较大咱4轧6暂曰同一区域 油水驱替过程复杂袁水驱油尧油驱水交替出现袁且由于 长期冲刷作用袁造成储层物性不断发生变化咱7轧9暂遥
Abstract: Aiming at the problem that the conventional displacement experiment is difficult to simulate the actual development of the reservoir, the experimental study on high displacement of water flooding oil was carried out. In this study, infrared oil detector and distillation method (two methods complement each other) were used to solve the problem of difficult measurement of high displacement oil volume. The accuracy of this method has been proved by designing pertinent experiments. By using surface flux index, the differences of scouring intensity and displacement speed between displacement experiment and reservoir development practice were compared and analyzed, which provided a strong support for displacement experiment design. At the same time, the quantitative relationship between reservoir physical properties and areal flux under strong scouring intensity was obtained, which can be applied to numerical simulation to study remaining oil distribution law and guide reservoir development adjustment. The calculation method of oil displacement efficiency for high displacement experimental is better in the western oil field of South China Sea. Key words: oil displacement efficiency; high鄄ratio oil displacement; infrared oil content analyzer; distillation method; areal flux