基于叠前OVT域偏移的河道砂体预测方法
|
摘要
大庆长垣萨尔图油田萨葡高油层属于陆相大型河流—三角洲沉积,层多层薄,砂泥互层频繁。利用常规叠后地震储层预测方法只能预测部分相对较厚的河道砂体,精度低,井震结合储层描述技术不利于在长垣油田萨葡高油层中全面推广应用。利用萨尔图高密度地震资料的优势,进行叠前地震OVT域的处理,保留了数据体中炮检距和方位角2个参数,以地震沉积学为手段,分析了不同方位地层切片反映储层砂体特征的振幅属性,结合研究区的地貌学特征预测薄互层河道砂体,井震结合储层描述,进一步提高了河道砂体的预测精度,与基于常规地震资料相比,精度提高15%以上。该方法为指导长垣油田井间剩余油描述和挖潜提供了有效手段。
The Sapugao reservoir in Saertu oilfield,Daqing Placanticline,is a typical clastic fluvial-delta deposit with thin interbed of sandstone and shale,and frequent sand-mud interbedding. Conventional poststack seismic reservoir prediction method can only predict some relatively thick channel sand bodies with low accuracy,and well-seismic combined with reservoir description technology is not conducive to the comprehensive application of Sapugao reservoir in Placanticline oilfield. Taking advantage of high-density seismic data from Saertu oilfield,the processing of prestack seismic data in OVT domain was carried out,and two parameters of offset and azimuth were retained in the data volume. By means of seismic sedimentology,the amplitude attributes of stratal slices in different directions reflecting the characteristics of reservoir sand bodies were analyzed. The thin interbedded channel sand bodies were predicted according to the geomorphological characteristics of the study area,and the prediction accuracy of channel sand bodies was further improved by combining well and seismic data with reservoir description. Compared with conventional seismic data,the prediction accuracy was improved bymore than 15%. This method provides an effective means to guide the description and tapping of interwell residual oil in Placanticline oilfield.
The Sapugao reservoir in Saertu oilfield,Daqing Placanticline,is a typical clastic fluvial-delta deposit with thin interbed of sandstone and shale,and frequent sand-mud interbedding. Conventional poststack seismic reservoir prediction method can only predict some relatively thick channel sand bodies with low accuracy,and well-seismic combined with reservoir description technology is not conducive to the comprehensive application of Sapugao reservoir in Placanticline oilfield. Taking advantage of high-density seismic data from Saertu oilfield,the processing of prestack seismic data in OVT domain was carried out,and two parameters of offset and azimuth were retained in the data volume. By means of seismic sedimentology,the amplitude attributes of stratal slices in different directions reflecting the characteristics of reservoir sand bodies were analyzed. The thin interbedded channel sand bodies were predicted according to the geomorphological characteristics of the study area,and the prediction accuracy of channel sand bodies was further improved by combining well and seismic data with reservoir description. Compared with conventional seismic data,the prediction accuracy was improved bymore than 15%. This method provides an effective means to guide the description and tapping of interwell residual oil in Placanticline oilfield.
引文
[1]付志国,郑荣才,赵翰卿,等.体积分配原理在河流-三角洲相储层分析中的应用:以大庆长垣萨葡油层为例大庆油田精细储层沉积学研究.成都理工大学学报(自然科学版),2006,33(5):503-508.FU Z G,ZHENG R C,ZHAO H Q,et al.Application of capacity distribution principle in river-delta reservoir analyses:Taking the Daqing Changhuan Sapu oil layer as example.Journal of Chengdu University of Technology(Science&Technology Edition),2006,33(5):503-508.
[2]刘化清,苏明军,倪长宽,等.薄砂体预测的地震沉积学研究方法.岩性油气藏,2018,30(2):1-11.LIU H Q,SU M J,NI C K,et al.Thin bed prediction from interbeded background:Revised seismic sedimentological method.Lithologic Reservoirs,2018,30(2):1-11.
[3]蔡志东,李青,王冲,等.利用VSP多波资料预测地层深度及油气属性.岩性油气藏,2019,31(1):106-112.CAI Z D,LI Q,WANG C,et al.Prediction of strata depth and hydrocarbon attributes by using VSP multi-wave data.Lithologic Reservoirs,2019,31(1):106-112.
[4]刘振峰.油气地震地质模型述评.岩性油气藏,2018,30(1):19-29.LIU Z F.Review on oil and gas seismogeology models.Lithologic Reservoirs,2018,30(1):19-29.
[5]刘依谋,印兴耀,张三元,等.宽方位地震勘探技术新进展.石油地球物理勘探,2014,49(3):596-610.LIU Y M,YIN X Y,ZHANG S Y,et al.Recent advances in wide azimuth seismic exploration.Oil Geophysical Prospecting,2014,49(3):596-610.
[6]詹仕凡,陈茂山,李磊,等.OVT域宽方位叠前地震属性分析方法.石油地球物理勘探,2015,50(5):956-966.ZHAN S F,CHEN M S,LI L,et al.OVT-domain wide azimuth prestack seismic attribute analysis.Oil Geophysical Prospecting,2015,50(5):956-966.
[7]周鹏,刘志斌,张益明,等.动校剩余时差处理方法及应用.地球物理学进展,2015,30(5):2349-2353.ZHOU P,LIU Z B,ZHANG Y M,et al.The processing method and application of the residual moveout NMO.Progress in Geophysics,2015,30(5):2349-2353.
[8]丁吉丰,裴江云,包燚.“两宽一高”资料处理技术在大庆油田的应用.石油地球物理勘探,2017,52(增刊1):10-16.DING J F,PEI J Y,BAO Y.Application of“Two Widths and One Height”data processing technology in Daqing Oilfield.Oil Geophysical Prospecting,2017,52(Suppl 1):10-16.
[9]王斌,尹路,陈永波,等.基于OVT域资料的低渗透砂砾岩储集层预测.新疆石油地质,2018,39(1):104-108.WANG B,YIN L,CHEN Y B,et al.OVT Domain-based prediction technology for low-permeability sandy-conglomerate reservoirs.Xinjiang Petroleum Geology,2018,39(1):104-108.
[10]王玲,孙廷彬,白静波,等.瞬时频率属性在沉积相研究中的应用:以白音查干凹陷西部腾格尔组为例.矿物岩石,2012(6):81-85.WANG L,SUN T B,BAI J B,et al.Application of instantaneous frequency to study of sedimentary facies of Tenggeer Formation in Xilinguolai area,Baiyinchagan Sag.Journal of Mineralogy and Petrology,2012(6):81-85.
[11]娄兵,姚茂敏,罗勇,等.高密度宽方位地震数据处理技术在玛湖凹陷的应用.新疆石油地质,2015,36(2):208-213.LOU B,YAO M M,LUO Y,et al.Application of high density and wide azimuth seismic data processing technology in Mahu Sag,Junggar Basin.Xinjiang Petroleum Geology,2015,36(2):208-213.
[12]冯杨伟,屈红军,张功成,等.南海北部琼东南盆地深水区梅山组一段地震相分析.矿物岩石,2016(3):82-95.FENG Y W,QU H J,ZHANG G C,et al.The seismic facies an analyzing of deep water area of Miocene Meishan Formation in Qiongongnan Basin,Northern South China Sea.Journal of Mineralogy and Petrology,2016(3):82-95.
[13]黄真萍,王晓华,王云专.薄层地震属性参数分析和厚度预测.石油物探,1997,36(3):28-38.HUANG Z P,WANG X H,WANG Y Z.Parameter analysis of seismic attributes and thickness prediction for thin bed.Geophysical Prospecting for Petroleum,1997,36(3):28-38.
[14]卜鸿飞,邢成奎,张云涛.S变换精确分频技术在河流相储层及流体识别中的应用.油气地球物理,2012,10(2):47-50.BU H F,XING C K,ZHANG Y T.The application of exact Stransform frequency-division in identification of the fluvial facies reservoir and fluid.Petroleum Geophysics,2012,10(2):47-50.
[15]曾洪流.地震沉积学在中国:回顾和展望.沉积学报,2011,29(3):417-425.ZENG H L.Seismic sedimentology in China:a review.Acta Sedimentologica Sinica,2011,29(3):417-425.
[16]黄饶,刘志斌.叠前同时反演在砂岩油藏预测中的应用.地球物理学进展,2013,28(1):380-386.HUANG R,LIU Z B.Application of prestack simultaneous in version in sandstone oil reservoir prediction.Progress in Geophysics,2013,28(1):380-386.
[17]李玉凤,孙炜,何巍巍,等.基于叠前反演的泥页岩地层压力预测方法.岩性油气藏,2019,31(1):113-121.LI Y F,SUN W,HE W W,et al.Prediction method of shale formation pressure based on pre-stack inversion.Lithologic Reservoirs,2019,31(1):113-121.
[18]张义娜,朱筱敏,刘长利.地震沉积学及其在中亚南部地区的应用.石油勘探与开发,2009,36(1):74-79.ZHANG Y N,ZHU X M,LIU C L.Seismic sedimentology and its application in south area of central Asia.Petroleum Exploration and Development,2009,36(1):74-79.
[19]林承焰,张宪国,董春梅.地震沉积学及其初步应用.石油学报,2007,28(2):69-72.LIN C Y,ZHANG X G,DONG C M.Concept of seismic sedimentology and its preliminary application.Acta Petrolei Sinica,2007,28(2):69-72.
[20]洪忠,张猛刚,朱筱敏.基于岩石物理的致密碎屑岩气藏岩性及流体概率预测.石油物探,2015,54(6):735-744.HONG Z,ZHANG M G,ZHU X M.Prediction on lithology and fluid probabilities of tight clastic gas reservoir based on rock physics.Geophysical Prospecting for Petroleum,2015,54(6):735-744.
[21]苏建龙,屈大鹏,陈超,等.叠前地震反演方法对比分析:礁石坝页岩气藏勘探实例.石油地球物理勘探,2016,51(3):581-588.SU J L,QU D P,CHEN C,et al.Application of pre-stack inversion technique for shale gas in Jiaoshiba gas field.Oil Geophysical Prospecting,2016,51(3):581-588.
[22]刘力辉,陆蓉,杨文魁.基于深度学习的地震岩相反演方法.石油物探,2019,58(1):123-128.LIU L H,LU R,YANG W K.Seismic rock inversion method based on depth learning.Geophysical Prospecting for Petroleum,2019,58(1):123-128.
[23]刘茂诚.一个各向异性速度分析应用实例.石油地球物理勘探,2010,45(4):525-529.LIU M C.An application case study for anisotropic velocity analysis.Oil Geophysical Prospecting,2010,45(4):525-529.
[24]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.石油勘探与开发,2012,39(3):275-284.ZENG H L,ZHU X M,ZHU R K,et al.Guidelines for seismic sedimentologic study in non-marine post-rift basins.Petroleum Exploration and Development,2012,39(3):275-284.
[25]徐立恒,宋宝权,韩嵩,等.变尺度构造模型在地质统计学反演储层预测中的应用.石油学报,2019,40(2):190-196.XU L H,SONG B Q,HAN S,et al.Application of variable scale structural model in geostatistical inversion for reservoir prediction.Acta Petrolei Sinica,2019,40(2):190-196.
[26]郎晓玲,彭仕宓,康洪全,等.利用多属性体分类技术预测扇三角洲砂体.西南石油大学学报(自然科学版),2010,32(1):57-62.LANG X L,PENG S M,KANG H Q,et al.Predict fan delta and body by using multi-attributes volume classification technology.Journal of Southwest Petroleum University(Science&Technology Edition),2010,32(1):57-62.
[27]孙鲁平,郑晓东,首皓,等.薄层地震峰值频率与厚度关系研究.石油地球物理勘探,2010,45(2):254-259.SUN L P,ZHENG X D,SHOU H,et al.The studies on relationship between thin layer seismic peak frequency and its thick ness.Oil Geophysical Prospecting,2010,45(2):254-259.
[28]王伟,吴奎,何京,等.锦州25-1油田优质储层地震响应特征与定量预测.岩性油气藏,2018,30(3):100-111.WANG W,WU K,HE J,et al.Seismic response characteristics and quantitative prediction of high quality reservoirs in Jinzhou25-1 oilfield.Lithologic Reservoirs,2018,30(3):100-111.
[29]刘文岭,王大星,萧希航,等.复杂油藏井震联合等时地层对比技术与应用.石油物探,2016,55(4):540-548.LIU W L,WANG D X,XIAO X H,et al.Combined well-seismic isochronal stratigraphic correlation technology and its application in complex reservoirs.Geophysical Prospecting for Petroleum,2016,55(4):540-548.
[30]李莉.江陵凹陷南斜坡新沟嘴组下段薄互层滩坝砂储层预测技术.海洋地质前沿,2016,32(12):46-53.LI L.Prediction technique for interbeded thin reservoir of beach bar facies on southern slope of Jiangling.Marine Geology Frontier,2016,32(12):46-53.
[2]刘化清,苏明军,倪长宽,等.薄砂体预测的地震沉积学研究方法.岩性油气藏,2018,30(2):1-11.LIU H Q,SU M J,NI C K,et al.Thin bed prediction from interbeded background:Revised seismic sedimentological method.Lithologic Reservoirs,2018,30(2):1-11.
[3]蔡志东,李青,王冲,等.利用VSP多波资料预测地层深度及油气属性.岩性油气藏,2019,31(1):106-112.CAI Z D,LI Q,WANG C,et al.Prediction of strata depth and hydrocarbon attributes by using VSP multi-wave data.Lithologic Reservoirs,2019,31(1):106-112.
[4]刘振峰.油气地震地质模型述评.岩性油气藏,2018,30(1):19-29.LIU Z F.Review on oil and gas seismogeology models.Lithologic Reservoirs,2018,30(1):19-29.
[5]刘依谋,印兴耀,张三元,等.宽方位地震勘探技术新进展.石油地球物理勘探,2014,49(3):596-610.LIU Y M,YIN X Y,ZHANG S Y,et al.Recent advances in wide azimuth seismic exploration.Oil Geophysical Prospecting,2014,49(3):596-610.
[6]詹仕凡,陈茂山,李磊,等.OVT域宽方位叠前地震属性分析方法.石油地球物理勘探,2015,50(5):956-966.ZHAN S F,CHEN M S,LI L,et al.OVT-domain wide azimuth prestack seismic attribute analysis.Oil Geophysical Prospecting,2015,50(5):956-966.
[7]周鹏,刘志斌,张益明,等.动校剩余时差处理方法及应用.地球物理学进展,2015,30(5):2349-2353.ZHOU P,LIU Z B,ZHANG Y M,et al.The processing method and application of the residual moveout NMO.Progress in Geophysics,2015,30(5):2349-2353.
[8]丁吉丰,裴江云,包燚.“两宽一高”资料处理技术在大庆油田的应用.石油地球物理勘探,2017,52(增刊1):10-16.DING J F,PEI J Y,BAO Y.Application of“Two Widths and One Height”data processing technology in Daqing Oilfield.Oil Geophysical Prospecting,2017,52(Suppl 1):10-16.
[9]王斌,尹路,陈永波,等.基于OVT域资料的低渗透砂砾岩储集层预测.新疆石油地质,2018,39(1):104-108.WANG B,YIN L,CHEN Y B,et al.OVT Domain-based prediction technology for low-permeability sandy-conglomerate reservoirs.Xinjiang Petroleum Geology,2018,39(1):104-108.
[10]王玲,孙廷彬,白静波,等.瞬时频率属性在沉积相研究中的应用:以白音查干凹陷西部腾格尔组为例.矿物岩石,2012(6):81-85.WANG L,SUN T B,BAI J B,et al.Application of instantaneous frequency to study of sedimentary facies of Tenggeer Formation in Xilinguolai area,Baiyinchagan Sag.Journal of Mineralogy and Petrology,2012(6):81-85.
[11]娄兵,姚茂敏,罗勇,等.高密度宽方位地震数据处理技术在玛湖凹陷的应用.新疆石油地质,2015,36(2):208-213.LOU B,YAO M M,LUO Y,et al.Application of high density and wide azimuth seismic data processing technology in Mahu Sag,Junggar Basin.Xinjiang Petroleum Geology,2015,36(2):208-213.
[12]冯杨伟,屈红军,张功成,等.南海北部琼东南盆地深水区梅山组一段地震相分析.矿物岩石,2016(3):82-95.FENG Y W,QU H J,ZHANG G C,et al.The seismic facies an analyzing of deep water area of Miocene Meishan Formation in Qiongongnan Basin,Northern South China Sea.Journal of Mineralogy and Petrology,2016(3):82-95.
[13]黄真萍,王晓华,王云专.薄层地震属性参数分析和厚度预测.石油物探,1997,36(3):28-38.HUANG Z P,WANG X H,WANG Y Z.Parameter analysis of seismic attributes and thickness prediction for thin bed.Geophysical Prospecting for Petroleum,1997,36(3):28-38.
[14]卜鸿飞,邢成奎,张云涛.S变换精确分频技术在河流相储层及流体识别中的应用.油气地球物理,2012,10(2):47-50.BU H F,XING C K,ZHANG Y T.The application of exact Stransform frequency-division in identification of the fluvial facies reservoir and fluid.Petroleum Geophysics,2012,10(2):47-50.
[15]曾洪流.地震沉积学在中国:回顾和展望.沉积学报,2011,29(3):417-425.ZENG H L.Seismic sedimentology in China:a review.Acta Sedimentologica Sinica,2011,29(3):417-425.
[16]黄饶,刘志斌.叠前同时反演在砂岩油藏预测中的应用.地球物理学进展,2013,28(1):380-386.HUANG R,LIU Z B.Application of prestack simultaneous in version in sandstone oil reservoir prediction.Progress in Geophysics,2013,28(1):380-386.
[17]李玉凤,孙炜,何巍巍,等.基于叠前反演的泥页岩地层压力预测方法.岩性油气藏,2019,31(1):113-121.LI Y F,SUN W,HE W W,et al.Prediction method of shale formation pressure based on pre-stack inversion.Lithologic Reservoirs,2019,31(1):113-121.
[18]张义娜,朱筱敏,刘长利.地震沉积学及其在中亚南部地区的应用.石油勘探与开发,2009,36(1):74-79.ZHANG Y N,ZHU X M,LIU C L.Seismic sedimentology and its application in south area of central Asia.Petroleum Exploration and Development,2009,36(1):74-79.
[19]林承焰,张宪国,董春梅.地震沉积学及其初步应用.石油学报,2007,28(2):69-72.LIN C Y,ZHANG X G,DONG C M.Concept of seismic sedimentology and its preliminary application.Acta Petrolei Sinica,2007,28(2):69-72.
[20]洪忠,张猛刚,朱筱敏.基于岩石物理的致密碎屑岩气藏岩性及流体概率预测.石油物探,2015,54(6):735-744.HONG Z,ZHANG M G,ZHU X M.Prediction on lithology and fluid probabilities of tight clastic gas reservoir based on rock physics.Geophysical Prospecting for Petroleum,2015,54(6):735-744.
[21]苏建龙,屈大鹏,陈超,等.叠前地震反演方法对比分析:礁石坝页岩气藏勘探实例.石油地球物理勘探,2016,51(3):581-588.SU J L,QU D P,CHEN C,et al.Application of pre-stack inversion technique for shale gas in Jiaoshiba gas field.Oil Geophysical Prospecting,2016,51(3):581-588.
[22]刘力辉,陆蓉,杨文魁.基于深度学习的地震岩相反演方法.石油物探,2019,58(1):123-128.LIU L H,LU R,YANG W K.Seismic rock inversion method based on depth learning.Geophysical Prospecting for Petroleum,2019,58(1):123-128.
[23]刘茂诚.一个各向异性速度分析应用实例.石油地球物理勘探,2010,45(4):525-529.LIU M C.An application case study for anisotropic velocity analysis.Oil Geophysical Prospecting,2010,45(4):525-529.
[24]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.石油勘探与开发,2012,39(3):275-284.ZENG H L,ZHU X M,ZHU R K,et al.Guidelines for seismic sedimentologic study in non-marine post-rift basins.Petroleum Exploration and Development,2012,39(3):275-284.
[25]徐立恒,宋宝权,韩嵩,等.变尺度构造模型在地质统计学反演储层预测中的应用.石油学报,2019,40(2):190-196.XU L H,SONG B Q,HAN S,et al.Application of variable scale structural model in geostatistical inversion for reservoir prediction.Acta Petrolei Sinica,2019,40(2):190-196.
[26]郎晓玲,彭仕宓,康洪全,等.利用多属性体分类技术预测扇三角洲砂体.西南石油大学学报(自然科学版),2010,32(1):57-62.LANG X L,PENG S M,KANG H Q,et al.Predict fan delta and body by using multi-attributes volume classification technology.Journal of Southwest Petroleum University(Science&Technology Edition),2010,32(1):57-62.
[27]孙鲁平,郑晓东,首皓,等.薄层地震峰值频率与厚度关系研究.石油地球物理勘探,2010,45(2):254-259.SUN L P,ZHENG X D,SHOU H,et al.The studies on relationship between thin layer seismic peak frequency and its thick ness.Oil Geophysical Prospecting,2010,45(2):254-259.
[28]王伟,吴奎,何京,等.锦州25-1油田优质储层地震响应特征与定量预测.岩性油气藏,2018,30(3):100-111.WANG W,WU K,HE J,et al.Seismic response characteristics and quantitative prediction of high quality reservoirs in Jinzhou25-1 oilfield.Lithologic Reservoirs,2018,30(3):100-111.
[29]刘文岭,王大星,萧希航,等.复杂油藏井震联合等时地层对比技术与应用.石油物探,2016,55(4):540-548.LIU W L,WANG D X,XIAO X H,et al.Combined well-seismic isochronal stratigraphic correlation technology and its application in complex reservoirs.Geophysical Prospecting for Petroleum,2016,55(4):540-548.
[30]李莉.江陵凹陷南斜坡新沟嘴组下段薄互层滩坝砂储层预测技术.海洋地质前沿,2016,32(12):46-53.LI L.Prediction technique for interbeded thin reservoir of beach bar facies on southern slope of Jiangling.Marine Geology Frontier,2016,32(12):46-53.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |