高含水复杂断块油田加密井井位智能优选方法及其应用
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摘要
高含水复杂断块油田地下剩余油高度分散、多层叠置、犬牙交错,对老油田二次开发新钻高效加密井的井位优选提出了苛刻的要求。通过研究复杂断块油藏剩余油分布特点,分析了井位优选的主要影响因素。利用复杂断块油田三维地质模型和油藏数值模拟后的多种三维场数据,以剩余可动油量为目标函数,以油井控制半径、经济极限井距和经济极限剩余可动油量为约束条件,建立了剩余可动油量计算模型,并给出了复杂断块油田单井控制范围和主要参数的计算方法,实现了直井、斜井井位的单因素智能优选。采用模糊综合评判方法综合考虑影响井位优化的多种因素,建立了多因素井位优选方法。通过编制相应的计算机软件,实现了复杂断块油田加密井井位智能优选的精细化和定量化。该方法应用于大港港西油田二区二次开发工程中,优选出的井位符合油藏动、静态认识,钻井实施后取得了良好的开发效果,为高含水复杂断块油田持续效益开发提供了技术支撑。
In the high water cut complex fault-block oilfields,the subsurface remaining oil is highly dispersed,and multi layers are superimposition and interlocked.Thus,it is very important for the well location optimization of new infill wells in mature oilfield redevelopment.The remaining oil distribution characteristics of complex fault-block reservoirs were illustrated and the main influence factors of well location optimization were analyzed.The calculation model of remaining movable oil volumes was established by fully using 3D geological model and multiple 3D field data of reservoir numerical simulation for complex fault-block oil wells,when taking the remaining movable oil volume as an objective function and the control radius of oil wells,economic limit well spacing and economic limit remaining movable oil volumes as constraint conditions.Meanwhile,the calculation methods of single well control area and main parameters were given for complex fault-block oil wells,thus achieving the intelligent well location optimization for vertical wells and inclined wells.The method of multi-factor well location optimization were established using the fuzzy comprehensive evaluation method and comprehensively considering the multiple influencing factors of well location optimization.Based on these models and methods,computer program modules were developed to realize the fine and quantitative well location optimization of infill wells in complex fault-block oilfields.This method has been applied for mature oilfield redevelopment project in Block2 of Dagang Gangxi oilfield to achieve the optimization of well locations consistent with dynamic and static understandings for reservoirs and good development results after well drilling,providing technical support for the redevelopment of high water cut complex fault-block oilfields.
In the high water cut complex fault-block oilfields,the subsurface remaining oil is highly dispersed,and multi layers are superimposition and interlocked.Thus,it is very important for the well location optimization of new infill wells in mature oilfield redevelopment.The remaining oil distribution characteristics of complex fault-block reservoirs were illustrated and the main influence factors of well location optimization were analyzed.The calculation model of remaining movable oil volumes was established by fully using 3D geological model and multiple 3D field data of reservoir numerical simulation for complex fault-block oil wells,when taking the remaining movable oil volume as an objective function and the control radius of oil wells,economic limit well spacing and economic limit remaining movable oil volumes as constraint conditions.Meanwhile,the calculation methods of single well control area and main parameters were given for complex fault-block oil wells,thus achieving the intelligent well location optimization for vertical wells and inclined wells.The method of multi-factor well location optimization were established using the fuzzy comprehensive evaluation method and comprehensively considering the multiple influencing factors of well location optimization.Based on these models and methods,computer program modules were developed to realize the fine and quantitative well location optimization of infill wells in complex fault-block oilfields.This method has been applied for mature oilfield redevelopment project in Block2 of Dagang Gangxi oilfield to achieve the optimization of well locations consistent with dynamic and static understandings for reservoirs and good development results after well drilling,providing technical support for the redevelopment of high water cut complex fault-block oilfields.
引文
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[11]崔传智,徐建鹏,王端平,等.特高含水阶段新型水驱特征曲线[J].石油学报,2015,36(10):1267-1271.CUI Chuanzhi,XU Jianpeng,WANG Duanping,et al.A new water flooding characteristic curve at ultra-high water cut stage[J].Acta Petrolei Sinica,2015,36(10):1267-1271.
[12]卢家亭,刘道杰,高贺存,等.构造-岩性油藏剩余油分布数值模拟模型研究[J].特种油气藏,2015,22(2):111-114.LU Jiating,LIU Daojie,GAO Hecun,et al.Research on numerical simulation model of residual oil distribution in structural-lithologic reservoir[J].Special Oil and Gas Reservoirs,2015,22(2):111-114.
[13]刘温岭,王经荣,胡水清,等.高含水油田精细油藏描述特色实用技术[M].北京:石油工业出版社,2014:7-8.LIU Wenling,WANG Jingrong,HU Shuiqing,et al.The practical technology of describing the characteristics of fine reservoir in high water cut oilfield[M].Beijing:Petroleum Industry Press,2014:7-8.
[14]刘淑霞,周锡生,金春海,等.大庆外围油田萨葡油层加密井井位优选方法[J].大庆石油地质与开发,2008,27(6):46-49.LIU Shuxia,ZHOU Xisheng,JIN Chunhai,et al.Infill well location optimizing method in Sapu oil reservoirs of Daqing peripheral oilfields[J].Petroleum Geology&Oilfield Development in Daqing,2008,27(6):46-49.
[15]张贵玲.均质油藏模型井网加密影响因素研究及优化[J].内蒙古石油化工,2013,39(2):10-11.ZHANG Guiling.Research and optimization of the influence factors in well infilling of theoretical reservoir model[J].Inner Mongolia Petrochemical Industry,2013,39(2):10-11.
[16]徐安娜,穆龙新,裘怿楠.我国不同沉积类型储集层中的储量和可动剩余油分布规律[J].石油勘探与开发,1998,25(5):41-44.XU Anna,MU Longxin,QIU Yinan.Distribution pattern of OOIP and remaining mobile oil in different types of sedimentary reservoir of China[J].Petroleum Exploration and Development,1998,25(5):41-44.
[17]张光亚,马锋,梁英波,等.全球深层油气勘探领域及理论技术进展[J].石油学报,2015,36(9):1156-1166.ZHANG Guangya,MA Feng,LIANG Yingbo,et al.Domain and theory-technology progress of global deep oil&gas exploration[J].Acta Petrolei Sinica,2015,36(9):1156-1166.
[18]罗莉涛,廖广志,刘卫东,等.Marangoni对流启动残余油微观机理[J].石油学报,2015,36(9):1127-1134.LUO Litao,LIAO Guangzhi,LIU Weidong,et al.Micromechanism of residual oil mobilization by Marangoni convection[J].Acta Petrolei Sinica,2015,36(9):1127-1134.
[19]朱文娟,喻高明,严维峰,等.油田经济极限井网密度的确定[J].断块油气田,2008,15(4):66-67.ZHU Wenjuan,YU Gaoming,YAN Weifeng,et al.Determination of economic limit for well pattern density of oilfield[J].Fault-Block Oil&Gas Field,2008,15(4):66-67.
[20]李敬松,孙义新,熊海灵,等.油田开发经济评价[M].北京:石油工业出版社,2000:85-96.LI Jingsong,SUN Yixin,XIONG Hailing,et al.Oilfild development economic evaluation[M].Beijing:Petroleum Industry Press,2000:85-96.
[21]PRELICZ R M,FEARFIELD D,SOBERA M,et al.Identifying new opportunities through reservoir performance reviews and systematic benchmarking of TQ recovery[R].SPE 172095,2014.
[22]胡伟,杨胜来,李斯鸣,等.基于多层次模糊综合评价的剩余油分布研究方法[J].西南石油大学学报:自然科学版,2015,37(4):22-28.HU Wei,YANG Shenglai,LI Siming,et al.Application of multi level fuzzy comprehensive evaluation method in the research of remaining oil distribution in Xing 6 district[J].Journal of Southwest Petroleum University:Science&Technology Edition,2015,37(4):22-28.
[23]任闽燕,张仲平,曹嫣镔,等.基于模糊评判的氮气泡沫调剖选井选层研究[J].西安石油大学学报:自然科学版,2013,28(4):60-63.REN Minyan,ZHANG Zhongping,CAO Yanbin,et al.Study on selection of well and stratum for nitrogen foam profile control based on fuzzy evaluation[J].Journal of Xi’an Shiyou University:Natural Science Edition,2013,28(4):60-63.
[24]刘春梅,谭青.模糊综合评判在油气勘探多学科指标评价预测中的应用-以新疆柴窝堡凹陷为例[J].石油实验地质,2014,36(1):106-109.LIU Chunmei,TAN Qing.Application of Fuzzy Comprehensive evaluation in oil&gas exploration with multidisciplinary assessment&forecasting:a case study on Chaiwopu Sag in Xinjian[J].Petroleum Geology&Experiment,2014,36(1):106-109.
[25]陈元千,周翠.线性递减类型的建立、对比与应用[J].石油学报,2015,36(8):983-987.CHEN Yuanqian,ZHOU Cui.Establishment,comparison and application of the linear decline type[J].Acta Petrolei Sinica,2015,36(8):983-987.
[26]李洪兴,汪群,段钦治,等.工程模糊数学方法及应用[M].天津:天津科学技术出版社,1993.LI Hongxing,WANG Qun,DUAN Qinzhi,et al.Engineering fuzzy mathematics methods with applications[M].Tianjin:Tianjin Science and Technology Press,1993.
[27]梁保松,曹殿立.模糊数学及其应用[M].北京:科学出版社,2007:127-150.LIANG Baosong,CAO Dianli.Fuzy mathematics and its applications[M].Beijing:Science Press,2007:127-150.
[28]常建娥,蒋太立.层次分析法确定权重的研究[J].武汉理工大学学报:信息与管理工程版,2007,29(1):153-156.CHANG Jing’e,JIANG Taili.Research on the weight of coefficient through analytic hierarchy process[J].Journal of Wuhan University of Technology:Information&Management Engineering,2007,29(1):153-156.
[29]李柏年.模糊数学及其应用[M].合肥:合肥工业大学出版社,2007:120-135.LI Bonian.Fuzy mathematics and its applications[M].Hefei:Hefei University of Technology Publishing,2007:120-135.
[2]韩大匡.关于高含水油田二次开发理念、对策和技术路线的探讨[J].石油勘探与开发,2010,37(5):583-591.HAN Dakuang.Discussions on concepts,countermeasures and technical routes for the redevelopment of high water-cut oilfields[J].Petroleum Exploration and Development,2010,37(5):583-591.
[3]TIZZANO D,COLELLA L,BARDINI S,et al.Redevelopment of water ultra-mature(85%water cut)field:case history[R].SPE171810,2014.
[4]涂兴万,陈林媛,莫文丽,等.高含水期复杂断块油藏剩余油分布及挖潜[J].西南石油学院学报,2004,26(1):39-42.TU Xingwan,CHEN Linyuan,MO Wenli,et al.Remind oil distribution and improvement production potential study on high water cut complex fault block oil reservoir[J].Journal of Southwest Petroleum Institute,2004,26(1):39-42.
[5]VINCENT G,CORRE B,THORE P.Managing structural uncertainty in a mature field for optimal well placement[J].SPE Reservoir Evaluation&Engineering,1999,2(4):377-384.
[6]李志鹏,林承焰,史全党,等.高浅南区边水断块油藏类型及剩余油特征[J].西南石油大学学报:自然科学版,2012,34(1):115-120.LI Zhipeng,LIN Chengyan,SHI Quandang,et al.Types of edgewater fault block reservoirs and features of residual oil in the Gaoqiannan Area[J].Journal of South west Petroleum University:Science&Technology Edition,2012,34(1):115-120.
[7]MOHAGHEGH S D,GASKARI R,JALALI J.A new method for production data analysis to identify new opportunities in mature fields:methodology and application[R].SPE98010,2005.
[8]DU Qinglong,QING Lu,CHENG Baoqing,et al.Research on the method of determination for remaining oil at late period of high water cut stage[R].SPE50896,1998.
[9]陈建平,王绪龙,邓春萍,等.准噶尔盆地南缘油气生成与分布规律-典型油藏油源解剖与原油分布规律[J].石油学报,2016,37(4):415-429.CHEN Jianping,WANG Xulong,DENG Chunping,et al.Investigation of typical reservoirs and occurrence regularity of crude oils in the southern margin of Junggar Basin,Northwestern China[J].Acta Petrolei Sinica,2016,37(4):415-429.
[10]张本华.曲流河储层构型中废弃河道的识别及其分布模式-以孤岛油田馆上段为例[J].油气地质与采收率,2013,20(3):18-21.ZHANG Benhua.Discussion on abandoned channels recognition and distribution models on meandering river reservoir architecture research-case study of upper member of Guantao Formation in Gudao oilfield[J].Petroleum Geology and Recovery Efficiency,2013,20(3):18-21.
[11]崔传智,徐建鹏,王端平,等.特高含水阶段新型水驱特征曲线[J].石油学报,2015,36(10):1267-1271.CUI Chuanzhi,XU Jianpeng,WANG Duanping,et al.A new water flooding characteristic curve at ultra-high water cut stage[J].Acta Petrolei Sinica,2015,36(10):1267-1271.
[12]卢家亭,刘道杰,高贺存,等.构造-岩性油藏剩余油分布数值模拟模型研究[J].特种油气藏,2015,22(2):111-114.LU Jiating,LIU Daojie,GAO Hecun,et al.Research on numerical simulation model of residual oil distribution in structural-lithologic reservoir[J].Special Oil and Gas Reservoirs,2015,22(2):111-114.
[13]刘温岭,王经荣,胡水清,等.高含水油田精细油藏描述特色实用技术[M].北京:石油工业出版社,2014:7-8.LIU Wenling,WANG Jingrong,HU Shuiqing,et al.The practical technology of describing the characteristics of fine reservoir in high water cut oilfield[M].Beijing:Petroleum Industry Press,2014:7-8.
[14]刘淑霞,周锡生,金春海,等.大庆外围油田萨葡油层加密井井位优选方法[J].大庆石油地质与开发,2008,27(6):46-49.LIU Shuxia,ZHOU Xisheng,JIN Chunhai,et al.Infill well location optimizing method in Sapu oil reservoirs of Daqing peripheral oilfields[J].Petroleum Geology&Oilfield Development in Daqing,2008,27(6):46-49.
[15]张贵玲.均质油藏模型井网加密影响因素研究及优化[J].内蒙古石油化工,2013,39(2):10-11.ZHANG Guiling.Research and optimization of the influence factors in well infilling of theoretical reservoir model[J].Inner Mongolia Petrochemical Industry,2013,39(2):10-11.
[16]徐安娜,穆龙新,裘怿楠.我国不同沉积类型储集层中的储量和可动剩余油分布规律[J].石油勘探与开发,1998,25(5):41-44.XU Anna,MU Longxin,QIU Yinan.Distribution pattern of OOIP and remaining mobile oil in different types of sedimentary reservoir of China[J].Petroleum Exploration and Development,1998,25(5):41-44.
[17]张光亚,马锋,梁英波,等.全球深层油气勘探领域及理论技术进展[J].石油学报,2015,36(9):1156-1166.ZHANG Guangya,MA Feng,LIANG Yingbo,et al.Domain and theory-technology progress of global deep oil&gas exploration[J].Acta Petrolei Sinica,2015,36(9):1156-1166.
[18]罗莉涛,廖广志,刘卫东,等.Marangoni对流启动残余油微观机理[J].石油学报,2015,36(9):1127-1134.LUO Litao,LIAO Guangzhi,LIU Weidong,et al.Micromechanism of residual oil mobilization by Marangoni convection[J].Acta Petrolei Sinica,2015,36(9):1127-1134.
[19]朱文娟,喻高明,严维峰,等.油田经济极限井网密度的确定[J].断块油气田,2008,15(4):66-67.ZHU Wenjuan,YU Gaoming,YAN Weifeng,et al.Determination of economic limit for well pattern density of oilfield[J].Fault-Block Oil&Gas Field,2008,15(4):66-67.
[20]李敬松,孙义新,熊海灵,等.油田开发经济评价[M].北京:石油工业出版社,2000:85-96.LI Jingsong,SUN Yixin,XIONG Hailing,et al.Oilfild development economic evaluation[M].Beijing:Petroleum Industry Press,2000:85-96.
[21]PRELICZ R M,FEARFIELD D,SOBERA M,et al.Identifying new opportunities through reservoir performance reviews and systematic benchmarking of TQ recovery[R].SPE 172095,2014.
[22]胡伟,杨胜来,李斯鸣,等.基于多层次模糊综合评价的剩余油分布研究方法[J].西南石油大学学报:自然科学版,2015,37(4):22-28.HU Wei,YANG Shenglai,LI Siming,et al.Application of multi level fuzzy comprehensive evaluation method in the research of remaining oil distribution in Xing 6 district[J].Journal of Southwest Petroleum University:Science&Technology Edition,2015,37(4):22-28.
[23]任闽燕,张仲平,曹嫣镔,等.基于模糊评判的氮气泡沫调剖选井选层研究[J].西安石油大学学报:自然科学版,2013,28(4):60-63.REN Minyan,ZHANG Zhongping,CAO Yanbin,et al.Study on selection of well and stratum for nitrogen foam profile control based on fuzzy evaluation[J].Journal of Xi’an Shiyou University:Natural Science Edition,2013,28(4):60-63.
[24]刘春梅,谭青.模糊综合评判在油气勘探多学科指标评价预测中的应用-以新疆柴窝堡凹陷为例[J].石油实验地质,2014,36(1):106-109.LIU Chunmei,TAN Qing.Application of Fuzzy Comprehensive evaluation in oil&gas exploration with multidisciplinary assessment&forecasting:a case study on Chaiwopu Sag in Xinjian[J].Petroleum Geology&Experiment,2014,36(1):106-109.
[25]陈元千,周翠.线性递减类型的建立、对比与应用[J].石油学报,2015,36(8):983-987.CHEN Yuanqian,ZHOU Cui.Establishment,comparison and application of the linear decline type[J].Acta Petrolei Sinica,2015,36(8):983-987.
[26]李洪兴,汪群,段钦治,等.工程模糊数学方法及应用[M].天津:天津科学技术出版社,1993.LI Hongxing,WANG Qun,DUAN Qinzhi,et al.Engineering fuzzy mathematics methods with applications[M].Tianjin:Tianjin Science and Technology Press,1993.
[27]梁保松,曹殿立.模糊数学及其应用[M].北京:科学出版社,2007:127-150.LIANG Baosong,CAO Dianli.Fuzy mathematics and its applications[M].Beijing:Science Press,2007:127-150.
[28]常建娥,蒋太立.层次分析法确定权重的研究[J].武汉理工大学学报:信息与管理工程版,2007,29(1):153-156.CHANG Jing’e,JIANG Taili.Research on the weight of coefficient through analytic hierarchy process[J].Journal of Wuhan University of Technology:Information&Management Engineering,2007,29(1):153-156.
[29]李柏年.模糊数学及其应用[M].合肥:合肥工业大学出版社,2007:120-135.LI Bonian.Fuzy mathematics and its applications[M].Hefei:Hefei University of Technology Publishing,2007:120-135.