曲流河单一河道砂体井震联合识别
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摘要
春光油田新近系沙湾组以曲流河沉积为主,河道不断迁移改道,砂体叠合频繁,井网密度小,单一河道边界识别困难,局部井区油水关系矛盾大,限制了单砂体剩余油的进一步挖潜。为精细刻画研究区单一河道边界,达到油气精细开发的目的,以测井响应特征为基础,总结了单一河道边界4种典型标志;建立初始地质模型,通过地震正演,总结地震识别标志,为稀井区单一河道的识别提供技术方法;依据地层切片上砂泥岩响应特征,在平面上识别出不同时期单一河道的展布特征和发育位置。井震联合方法克服了测井资料横向上预测的不确定性,提高了单一河道的刻画精度。
The sedimentary system of the Neogene Shawan formation in Chunguang oilfield is dominated by meandering river deposits.Due to the continuous river channel migration and diversion,frequent vertical superposition of sand bodies and sparse well pattern,it is hard to identify the boundary of a single channel.Besides,the oil-water relationship is contradictory in some wellblocks,which limits the further remaining oil potential tapping.To detailedly characterize the single channel boundaries and achieve the goal of fine oil and gas development and on the basis of logging responses,the paper concludes four typical indicators to depict the boundary of single channel,establishes an original geological model and summarizes seismic identification indicators.According to the responses of sandstone and mudstone on the strata slices,the distribution characteristics and development positions of single channels of different periods are identified.The loggingseismic combination method can overcome the uncertainty of lateral logging data prediction and improve the accuracy of single channel characterization.
The sedimentary system of the Neogene Shawan formation in Chunguang oilfield is dominated by meandering river deposits.Due to the continuous river channel migration and diversion,frequent vertical superposition of sand bodies and sparse well pattern,it is hard to identify the boundary of a single channel.Besides,the oil-water relationship is contradictory in some wellblocks,which limits the further remaining oil potential tapping.To detailedly characterize the single channel boundaries and achieve the goal of fine oil and gas development and on the basis of logging responses,the paper concludes four typical indicators to depict the boundary of single channel,establishes an original geological model and summarizes seismic identification indicators.According to the responses of sandstone and mudstone on the strata slices,the distribution characteristics and development positions of single channels of different periods are identified.The loggingseismic combination method can overcome the uncertainty of lateral logging data prediction and improve the accuracy of single channel characterization.
引文
[1]王晖,胡光义,范红军,等.边际油田河流相储集层表征关键技术[J].石油勘探与开发,2012,39(5):626-633.WANG Hui,HU Guangyi,FAN Hongjun,et al.Key technologies for the fluvial reservoir characterization of marginal oilfields[J].Petroleum Exploration and Development,2012,39(5):626-633.
[2]闵小刚,陈开远,范廷恩.井-震结合进行河流相储层非均质性表征--以渤海湾盆地黄河口凹陷渤中263油田为例[J].石油与天然气地质,2011,32(3):375-383.MIN Xiaogang,CHEN Kaiyuan,FAN Tingen.Heterogeneity characterization of fluvial facies reservoirs through intrgration of seismic and logging data-an example from Bozhong-263 oilfield in the Huanghekou sag[J].Oil&Gas Geology,2011,32(3):375-383.
[3]岳大力.曲流河储层构型分析与剩余油分布模式研究--以孤岛油田馆陶组为例[D].北京:中国石油大学,2006.YUE Dali.The study on architecture analysis and remaining oil distribution patterns of meandering river reservoir-a case study of Guantao formation,Gudao oilfield[D].Beijing:China University of Petroleum,2006.
[4]孟鹏,苏彦春,冯鑫,等.曲流河废弃河道识别及其对低油柱油藏水平井着陆的影响--以渤海湾地区曹妃甸油田Lm943砂体为例[J].新疆石油地质,2015,36(4):475-479.MENG Peng,SU Yanchun,FENG Xin,et al.Identification of abandoned channels in meander river and impact on horizontal well landing design in low oil column reservoir:a case study of Lm943 sand of Caofeidian oilfield in Bohai Bay area[J].Xinjiang Petroleum Geology,2015,36(4):475-479.
[5]张昌民,尹太举,喻辰,等.基于过程的分流平原高弯河道砂体储层内部建筑结构分析--以大庆油田萨北地区为例[J].沉积学报,2013,31(4):653-662.ZHANG Changmin,YIN Taiju,YU Chen,et al.Reservoir architectural analysis of meandering channel sandstone in the delta plain based on the depositional process[J].Acta Sedimentologica Sinica,2013,31(4):653-662.
[6]单敬福,张吉,赵忠军,等.地下曲流河点坝砂体沉积演化过程分析--以吉林油田杨大城子油层第23小层为例[J].石油学报,2015,36(7):809-819.SHAN Jingfu,ZHANG Ji,ZHAO Zhongjun,et al.Analysis of sedimentary and evolution process for underground meandering river point bar:a case study from No.23 thin layer of Yangdachengzi oil reservoir in Jilin oilfield[J].Acta Petrolei Sinica,2015,36(7):809-819.
[7]郝兰英,郭亚杰,李杰,等.地震沉积学在大庆长垣密井网条件下储层精细描述中的初步应用[J].地学前缘,2012,19(2):81-86.HAO Lanying,GUO Yajie,LI Jie,et al.Preliminary application of the seismic sedimentology to reservoir refined description under the condition of high density well-pattern in Daqing placanticline[J].Earth Science Frontiers,2012,19(2):81-86.
[8]王鹏飞,刘桂林,李嵩阳,等.春光区块薄储层地震响应特征的模型正演分析[J].石油地质与工程,2012,26(6):64-67.WANG Pengfei,LIU Guilin,LI Songyang,et al.Forward modeling analysis of seismic response of thin reservoir in Chunguang block[J].Petroleum Geology and Engineering,2012,26(6):64-67.
[9]王鹏飞,肖学,杨春峰,等.利用正演模拟优选春光区块地震同相轴预测储层[J].石油地质与工程,2016,30(3):73-76.WANG Pengfei,XIAO Xue,YANG Chunfeng,et al.Using forward modeling to optimize seismic event for reservoir prediction in Chunguang block[J].Petroleum Geology and Engineering,2016,30(3):73-76.
[10]肖佃师,张飞飞,卢双舫,等.井震联合识别复合砂体中单一河道--以朝44区块扶余油层为例[J].石油地球物理勘探,2016,51(1):148-157.XIAO Dianshi,ZHANG Feifei,LU Shuangfang,et al.Single channel identification in compound sand bodies by well and seismic data integration:an example in area of Chao 44 region,Fuyu oilfield[J].Oil Geophysical Prospecting,2016,51(1):148-157.
[11]徐立恒,郝兰英,刘江玉.井震反演识别复合砂体内单一河道[J].西南石油大学学报(自然科学版),2014,36(2):64-70.XU Liheng,HAO Lanying,LIU Jiangyu.Recognition of single channel in composite sand body based on well-seismic and inversion[J].Journal of Southwest Petroleum University(Science&Technology Edition),2014,36(2):64-70.
[12]张昌民,刘江艳,潘进,等.玛湖凹陷百口泉组砂砾岩建筑结构要素层次分析[J].新疆石油地质,2018,39(1):23-34.ZHANG Changmin,LIU Jiangyan,PAN Jin,et al.Hierarchical architectural element analysis for sandy conglomerate deposits of Baikouqua formation,Mahu sag[J].Xinjiang Petroleum Geology,2018,39(1):23-34.
[13]刘汝敏,罗智,王震,等.复合砂体内单一河道的识别方法[J].石油天然气学报,2010,32(3):214-216.LIU Rumin,LUO Zhi,WANG Zhen,et al.Sandbody identification in single channels of multi-sandbodies[J].Journal of Oil and Gas Technology,2010,32(3):214-216.
[14]刘金连,张建宁.济阳探区单一河道砂体边界地质建模及其地震正演响应特征分析[J].石油物探,2010,49(4):344-350.LIU Jinlian,ZHANG Jianning.Geological modeling and seismic forward response characteristics analysis of single channel sand body boundary in Jiyang prospecting area[J].Geophysical Prospecting for Petroleum,2010,49(4):344-350.
[15]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.
[16]马平华,霍梦颖,何俊,等.渤海湾盆地秦皇岛32-6油田曲流河沉积体系综合解剖[J].新疆石油地质,2017,38(5):567-574.MA Pinghua,HUO Mengying,HE Jun,et al.Comprehensive dissection of meandering-river sedimentary system in Qinhuangdao 32-6 oilfield,Bohai Bay basin[J].Xinjiang Petroleum Geology,2017,38(5):567-574.
[17]舒志华,张立有,刘刚.复合砂体中单一河道的识别方法[J].大庆石油地质与开发,2006,25(4):18-20.SHU Zhihua,ZHANG Liyou,LIU Gang.Identification of single channel in compound sand body[J].Petroleum Geology&Oilfield Development in Daqing,2006,25(4):18-20.
[18]梁宏伟,穆龙新,范子菲,等.基于正演模拟的曲流河构型层次研究[J].中国矿业大学学报,2014,43(6):1 063-1 069.LIANG Hongwei,MU Longxin,FAN Zifei,et al.The AHP study of architecture pattern of meandering reservoir on the basis of forward simulation[J].Journal of China University of Mining&Technology,2014,43(6):1 063-1 069.
[19]曾洪流,朱筱敏,朱如凯,等.陆相坳陷型盆地地震沉积学研究规范[J].石油勘探与开发,2012,39(3):275-284.ZENG Hongliu,ZHU Xiaomin,ZHU Rukai,et al.Guidelines for seismic sedimentologic study in non-marine post rift basins[J].Petroleum Exploration and Development,2012,39(3):275-284.
[20]DONG Yanlei,ZHANG Mengyu,ZHU Xiaomin,et al.Seismic geomorphology and depositional system of delta and terminal fan:a case study of the Neogene Shawan formation in the Chepaizi uplift,Junggar basin,China[J].Marine and Petroleum Geology,2017,22(3):362-381.
[21]ZHU Hongtao,YANG Xianghua,ZHOU Xinhuai,et al.Three-dimensional facies architecture analysis using sequence stratigraphy and seismic sedimentology:example from the Paleogene Dongying formation in the BZ3-1 block of the Bozhong sag,Bohai Bay basin,China[J].Marine and Petroleum Geology,2014,19(1):20-33.
[22]ZHAO Dongna,ZHU Xiaomin,DONG Yanlei,et al.Application of seismic sedimentology to prediction of beach and bar sandbodies in gentle slope of lacustrine basin:a case study of the Lower Cretaceous in Chepaizi area,Junggar basin,NW China[J].Petroleum Exploration and Development,2014,41(1):60-67.
[23]樊晓伊,姚光庆,杨振峰,等.准噶尔盆地车排子凸起多物源复杂沉积体系中的地震沉积学[J].地球科学,2018,43(3):786-801.FAN Xiaoyi,YAO Guangqing,YANG Zhenfeng,et al.Seismic sedimentology in multiple sources-complex depositional systems of Chepaizi uplift,Junggar basin[J].Earth Science,2018,43(3):786-801.
[24]石巨业,金之钧,樊太亮,等.利用地层切片研究河道砂体发育特征--以南图尔盖盆地Doshan地区为例[J].海相油气地质,2017,22(2):82-88.SHI Juye,JIN Zhijun,FAN Tailiang,et al.A study of channel sandbody by stratal slicing:a case of Doshan area in south Turgay basin,Kazakhstan[J].Marine Origin Petroleum Geology,2017,22(2):82-88.
[25]刘朋坤.地震沉积学在废弃河道精细刻画中的应用[J].特种油气藏,2016,23(1):67-71.LIU Pengkun.Application of seismic sedimentology in fine depiction of abandoned channel[J].Special Oil&Gas Reservoirs,2016,23(1):67-71.
[2]闵小刚,陈开远,范廷恩.井-震结合进行河流相储层非均质性表征--以渤海湾盆地黄河口凹陷渤中263油田为例[J].石油与天然气地质,2011,32(3):375-383.MIN Xiaogang,CHEN Kaiyuan,FAN Tingen.Heterogeneity characterization of fluvial facies reservoirs through intrgration of seismic and logging data-an example from Bozhong-263 oilfield in the Huanghekou sag[J].Oil&Gas Geology,2011,32(3):375-383.
[3]岳大力.曲流河储层构型分析与剩余油分布模式研究--以孤岛油田馆陶组为例[D].北京:中国石油大学,2006.YUE Dali.The study on architecture analysis and remaining oil distribution patterns of meandering river reservoir-a case study of Guantao formation,Gudao oilfield[D].Beijing:China University of Petroleum,2006.
[4]孟鹏,苏彦春,冯鑫,等.曲流河废弃河道识别及其对低油柱油藏水平井着陆的影响--以渤海湾地区曹妃甸油田Lm943砂体为例[J].新疆石油地质,2015,36(4):475-479.MENG Peng,SU Yanchun,FENG Xin,et al.Identification of abandoned channels in meander river and impact on horizontal well landing design in low oil column reservoir:a case study of Lm943 sand of Caofeidian oilfield in Bohai Bay area[J].Xinjiang Petroleum Geology,2015,36(4):475-479.
[5]张昌民,尹太举,喻辰,等.基于过程的分流平原高弯河道砂体储层内部建筑结构分析--以大庆油田萨北地区为例[J].沉积学报,2013,31(4):653-662.ZHANG Changmin,YIN Taiju,YU Chen,et al.Reservoir architectural analysis of meandering channel sandstone in the delta plain based on the depositional process[J].Acta Sedimentologica Sinica,2013,31(4):653-662.
[6]单敬福,张吉,赵忠军,等.地下曲流河点坝砂体沉积演化过程分析--以吉林油田杨大城子油层第23小层为例[J].石油学报,2015,36(7):809-819.SHAN Jingfu,ZHANG Ji,ZHAO Zhongjun,et al.Analysis of sedimentary and evolution process for underground meandering river point bar:a case study from No.23 thin layer of Yangdachengzi oil reservoir in Jilin oilfield[J].Acta Petrolei Sinica,2015,36(7):809-819.
[7]郝兰英,郭亚杰,李杰,等.地震沉积学在大庆长垣密井网条件下储层精细描述中的初步应用[J].地学前缘,2012,19(2):81-86.HAO Lanying,GUO Yajie,LI Jie,et al.Preliminary application of the seismic sedimentology to reservoir refined description under the condition of high density well-pattern in Daqing placanticline[J].Earth Science Frontiers,2012,19(2):81-86.
[8]王鹏飞,刘桂林,李嵩阳,等.春光区块薄储层地震响应特征的模型正演分析[J].石油地质与工程,2012,26(6):64-67.WANG Pengfei,LIU Guilin,LI Songyang,et al.Forward modeling analysis of seismic response of thin reservoir in Chunguang block[J].Petroleum Geology and Engineering,2012,26(6):64-67.
[9]王鹏飞,肖学,杨春峰,等.利用正演模拟优选春光区块地震同相轴预测储层[J].石油地质与工程,2016,30(3):73-76.WANG Pengfei,XIAO Xue,YANG Chunfeng,et al.Using forward modeling to optimize seismic event for reservoir prediction in Chunguang block[J].Petroleum Geology and Engineering,2016,30(3):73-76.
[10]肖佃师,张飞飞,卢双舫,等.井震联合识别复合砂体中单一河道--以朝44区块扶余油层为例[J].石油地球物理勘探,2016,51(1):148-157.XIAO Dianshi,ZHANG Feifei,LU Shuangfang,et al.Single channel identification in compound sand bodies by well and seismic data integration:an example in area of Chao 44 region,Fuyu oilfield[J].Oil Geophysical Prospecting,2016,51(1):148-157.
[11]徐立恒,郝兰英,刘江玉.井震反演识别复合砂体内单一河道[J].西南石油大学学报(自然科学版),2014,36(2):64-70.XU Liheng,HAO Lanying,LIU Jiangyu.Recognition of single channel in composite sand body based on well-seismic and inversion[J].Journal of Southwest Petroleum University(Science&Technology Edition),2014,36(2):64-70.
[12]张昌民,刘江艳,潘进,等.玛湖凹陷百口泉组砂砾岩建筑结构要素层次分析[J].新疆石油地质,2018,39(1):23-34.ZHANG Changmin,LIU Jiangyan,PAN Jin,et al.Hierarchical architectural element analysis for sandy conglomerate deposits of Baikouqua formation,Mahu sag[J].Xinjiang Petroleum Geology,2018,39(1):23-34.
[13]刘汝敏,罗智,王震,等.复合砂体内单一河道的识别方法[J].石油天然气学报,2010,32(3):214-216.LIU Rumin,LUO Zhi,WANG Zhen,et al.Sandbody identification in single channels of multi-sandbodies[J].Journal of Oil and Gas Technology,2010,32(3):214-216.
[14]刘金连,张建宁.济阳探区单一河道砂体边界地质建模及其地震正演响应特征分析[J].石油物探,2010,49(4):344-350.LIU Jinlian,ZHANG Jianning.Geological modeling and seismic forward response characteristics analysis of single channel sand body boundary in Jiyang prospecting area[J].Geophysical Prospecting for Petroleum,2010,49(4):344-350.
[15]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.
[16]马平华,霍梦颖,何俊,等.渤海湾盆地秦皇岛32-6油田曲流河沉积体系综合解剖[J].新疆石油地质,2017,38(5):567-574.MA Pinghua,HUO Mengying,HE Jun,et al.Comprehensive dissection of meandering-river sedimentary system in Qinhuangdao 32-6 oilfield,Bohai Bay basin[J].Xinjiang Petroleum Geology,2017,38(5):567-574.
[17]舒志华,张立有,刘刚.复合砂体中单一河道的识别方法[J].大庆石油地质与开发,2006,25(4):18-20.SHU Zhihua,ZHANG Liyou,LIU Gang.Identification of single channel in compound sand body[J].Petroleum Geology&Oilfield Development in Daqing,2006,25(4):18-20.
[18]梁宏伟,穆龙新,范子菲,等.基于正演模拟的曲流河构型层次研究[J].中国矿业大学学报,2014,43(6):1 063-1 069.LIANG Hongwei,MU Longxin,FAN Zifei,et al.The AHP study of architecture pattern of meandering reservoir on the basis of forward simulation[J].Journal of China University of Mining&Technology,2014,43(6):1 063-1 069.
[19]曾洪流,朱筱敏,朱如凯,等.陆相坳陷型盆地地震沉积学研究规范[J].石油勘探与开发,2012,39(3):275-284.ZENG Hongliu,ZHU Xiaomin,ZHU Rukai,et al.Guidelines for seismic sedimentologic study in non-marine post rift basins[J].Petroleum Exploration and Development,2012,39(3):275-284.
[20]DONG Yanlei,ZHANG Mengyu,ZHU Xiaomin,et al.Seismic geomorphology and depositional system of delta and terminal fan:a case study of the Neogene Shawan formation in the Chepaizi uplift,Junggar basin,China[J].Marine and Petroleum Geology,2017,22(3):362-381.
[21]ZHU Hongtao,YANG Xianghua,ZHOU Xinhuai,et al.Three-dimensional facies architecture analysis using sequence stratigraphy and seismic sedimentology:example from the Paleogene Dongying formation in the BZ3-1 block of the Bozhong sag,Bohai Bay basin,China[J].Marine and Petroleum Geology,2014,19(1):20-33.
[22]ZHAO Dongna,ZHU Xiaomin,DONG Yanlei,et al.Application of seismic sedimentology to prediction of beach and bar sandbodies in gentle slope of lacustrine basin:a case study of the Lower Cretaceous in Chepaizi area,Junggar basin,NW China[J].Petroleum Exploration and Development,2014,41(1):60-67.
[23]樊晓伊,姚光庆,杨振峰,等.准噶尔盆地车排子凸起多物源复杂沉积体系中的地震沉积学[J].地球科学,2018,43(3):786-801.FAN Xiaoyi,YAO Guangqing,YANG Zhenfeng,et al.Seismic sedimentology in multiple sources-complex depositional systems of Chepaizi uplift,Junggar basin[J].Earth Science,2018,43(3):786-801.
[24]石巨业,金之钧,樊太亮,等.利用地层切片研究河道砂体发育特征--以南图尔盖盆地Doshan地区为例[J].海相油气地质,2017,22(2):82-88.SHI Juye,JIN Zhijun,FAN Tailiang,et al.A study of channel sandbody by stratal slicing:a case of Doshan area in south Turgay basin,Kazakhstan[J].Marine Origin Petroleum Geology,2017,22(2):82-88.
[25]刘朋坤.地震沉积学在废弃河道精细刻画中的应用[J].特种油气藏,2016,23(1):67-71.LIU Pengkun.Application of seismic sedimentology in fine depiction of abandoned channel[J].Special Oil&Gas Reservoirs,2016,23(1):67-71.