示踪剂模拟技术在边水油藏水驱前缘研究中的应用——以哈德油田为例
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摘要
现场示踪剂监测周期大多为150～360d,不能准确判断监测周期之后注入水波及范围,并且对研究区两套油层分别优势注水方向、推进速度和判断油井来水方向(注水井或边水)等问题不能有效解决。介绍示踪剂模拟技术,并充分考虑示踪流体扩散、弥散现象的影响,在动态历史拟合、示踪流体已监测分析结果拟合基础上,对注水井水驱前缘及边水推进进行分析研究。结果表明:示踪剂模拟结果与现场示踪剂已监测情况基本吻合,可以利用数值模型对区块进行更长周期监测,弥补了实测过程中施工复杂、监测周期耗时等缺点;通过模型运算得出注水井水驱前缘状况、注入水波及范围、推进速度及优势注水方向,进一步对油藏两套油层注采渗流规律进行评价预测。
The cycle of field tracer monitoring is about 150-360 days.Therefore it should not identify water-flood swept area after the cycle of tracer monitoring.And it fails to effectively solve these problems that preferable water-injection direction and advancing speed of two sets of oil layers and the identification of the direction of water (injection-water or edge-water).Introducing the tracer simulation technology,and giving full consideration to the impact of the phenomenon of tracer fluid mass,based on historical performance match and the monitor result match of tracer fluid,water-flooding front and edge-water advancing were studied.The results show that tracer simulation results is basically consistent with the field tracer monitoring results.Numerical model can be used to conduct a longer period monitoring to compensate for the disadvantage of the complex of construction and time-consuming monitoring cycle,and so on.The water-flooding front,water-flood swept area,advancing speed and the preferable water injection direction can be simulated with numerical model,further to evaluate and predict the injection-production flow laws of two sets of reservoirs,it can provide reliable foundation to deploy reasonable flood pattern,to develop remain oil and ultimately enhance oil recovery.
The cycle of field tracer monitoring is about 150-360 days.Therefore it should not identify water-flood swept area after the cycle of tracer monitoring.And it fails to effectively solve these problems that preferable water-injection direction and advancing speed of two sets of oil layers and the identification of the direction of water (injection-water or edge-water).Introducing the tracer simulation technology,and giving full consideration to the impact of the phenomenon of tracer fluid mass,based on historical performance match and the monitor result match of tracer fluid,water-flooding front and edge-water advancing were studied.The results show that tracer simulation results is basically consistent with the field tracer monitoring results.Numerical model can be used to conduct a longer period monitoring to compensate for the disadvantage of the complex of construction and time-consuming monitoring cycle,and so on.The water-flooding front,water-flood swept area,advancing speed and the preferable water injection direction can be simulated with numerical model,further to evaluate and predict the injection-production flow laws of two sets of reservoirs,it can provide reliable foundation to deploy reasonable flood pattern,to develop remain oil and ultimately enhance oil recovery.
引文
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[11]冯其红,李淑霞.井间示踪剂产出曲线自动拟合办法[J].石油勘探与开发,2005,32(5):121-124.FENG Qi-hong,LI Shu-xia.Automatic matching for inter-well tracer production curve[J].Petroleum Exploration and Development,2005,32(5):121-124.
[2]荣宁,吴迪,韩易龙,等.微地震监测水驱前缘技术在哈得双台阶水平井的应用效果评价[J].大庆石油地质与开发,2006,25(2):94-96.RONG Ning,WU Di,HAN Yi-long,et al.Application evaluation of microearthquake monitoring waterflood front technique used to dual step horizontal wells in Hade oilfield[J].Petroleum Geology&Oilfield Development in Daqing,2006,25(2):94-96.
[3]李臣,方志斌,刘春兰,等.示踪剂在砂砾岩油藏开发中的应用[J].新疆石油地质,2005,26(1):99-101.LI Chen,FANG Zhi-bin,LI U Chun-lan,et al.Application of micromatter trace test to glutenitereservoirs[J].Xinjiang Petroleum Geology,2005,26(1):99-101.
[4]Dugstar O,Aurdal T,Galdiga C,et al.Application of tracers to monitor fluid flowin the snorre field:a field study[J].SPE,1999,10:108-112.
[5]张钊,陈明强,高永利.应用示踪技术评价低渗透油藏油水井间连通关系[J].西安石油大学学报:自然科学版,2006,21(3):48-51.ZHANG Zhao,CHENG Ming-qiang,GAO Yong-li.Esti mation of the connectivity between oil wells and water injection wells in low-permeability reservoir using tracer detection technique[J].Journal of Xi'an Shiyou University:Natural Science Edition,2006,21(3):48-51.
[6]陈景霞,张平实,李翠玲,等.油水运动追踪技术在高含水后期油藏数值模拟中的应用[J].大庆石油地质与开发,2007,26(4):70-72.CHENJing-xia,ZHANG Ping-shi,LI Cui-ling,et al.The application of oil/water movement tracing oil/water movement tracing technology in reservoir numerical si mulation during late high water cut period[J].Petroleum Geology&Oilfield Development in Daqing,2007,26(4):70-72.
[7]张建民,赵永忠,徐晶,等.吸水剖面综合解释方法及应用[J].吉林大学学报:地球科学版,2006,36(专辑):143-147.ZHANG Jian-min,ZHAO Yong-zhong,XU Jing,et al.The comprehensiveinterpretation and application of injection profile log[J].Journal of Jilin University:Earth Science Edition,2006,36(Sup.):143-147.
[8]刘同敬,姜汉桥,李秀生,等.井间示踪剂测试半解析方法体系数学模型[J].石油学报,2007,28(5):115-117.LI U Tong-jing,JIANG Han-qiao,LI Xiu-sheng,et al.Semi-analytical mathematical model for well to well tracer test system[J].Acta Petrolei Sinica,2007,28(5):115-117.
[9]姜瑞忠,姜汉桥,杨双虎.多种示踪剂井间分析技术[J].石油学报,1996,17(3):85-91.JIANG Rui-zhong,JIANG Han-qiao,YANG Shuang-hu.A new technique for the analysis of inter-well tracers[J].Acta Petrolei Sinica,1996,17(3):85-91.
[10]李淑霞,陈月明.井间示踪剂测试的数值模拟方法[J].石油大学学报:自然科学版,1997,21(3):43-45.LI Shu-xia,CHENG Yue-ming.Numerical si mulation for inter-well tracer tests[J].Journal of University of Petroleum,China:Edition of Natural Science,1997,21(3):43-45.
[11]冯其红,李淑霞.井间示踪剂产出曲线自动拟合办法[J].石油勘探与开发,2005,32(5):121-124.FENG Qi-hong,LI Shu-xia.Automatic matching for inter-well tracer production curve[J].Petroleum Exploration and Development,2005,32(5):121-124.
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