弹性参数反演与属性融合技术在“甜点”预测中的应用
|
摘要
利用坐标旋转技术可以构建新的弹性参数,并且通过寻找合适的旋转角度,可以使新构建的弹性参数对储层物性和含气性的区分能力最大化。地震属性融合可以将多个属性融合在一起,达到更准确地预测储层的目的。首先通过岩石物理特征分析,利用坐标旋转技术选取和构建了对储层物性和含气性敏感的弹性参数,然后对这些弹性参数进行叠前同时反演;同时利用叠前和叠后地震数据提取了多种地震属性,从中优选出与"甜点"因子相关度较好的地震属性;最后将弹性参数反演结果与优选出的地震属性进行融合,并根据融合结果对储层"甜点"区进行了识别和预测,结果与钻井实际情况基本一致,且比用单一方法更加可靠。
Coordinate rotation technique can be used to establish new elastic parameters.Finding proper rotation angle can maximize the ability of distinguishing the physical and gas-bearing properties of the reservoirs by using the newly constructed elastic parameters.Fusion technique can fuse different kinds of seismic attributes,which contributes to improve the accuracy of reservoir prediction.By petrophysical analysis,we use coordinate rotation technique to construct sensitive elastic parameters of physical and gas-bearing properties,and then use prestack simultaneous inversion to calculate these parameters.From the seismic attributes extracted from different prestack and poststack seismic data,we select those which have good relevancy with "sweet spot"factor.Finally,we fuse the inversion results of elastic parameters and the selected seismic attributes to identify and predict the reservoir"sweet spot".The result matches the well data and has a higher reliability than that of using one single method.
Coordinate rotation technique can be used to establish new elastic parameters.Finding proper rotation angle can maximize the ability of distinguishing the physical and gas-bearing properties of the reservoirs by using the newly constructed elastic parameters.Fusion technique can fuse different kinds of seismic attributes,which contributes to improve the accuracy of reservoir prediction.By petrophysical analysis,we use coordinate rotation technique to construct sensitive elastic parameters of physical and gas-bearing properties,and then use prestack simultaneous inversion to calculate these parameters.From the seismic attributes extracted from different prestack and poststack seismic data,we select those which have good relevancy with "sweet spot"factor.Finally,we fuse the inversion results of elastic parameters and the selected seismic attributes to identify and predict the reservoir"sweet spot".The result matches the well data and has a higher reliability than that of using one single method.
引文
[1]Smith G C,Gidlow P M.Weighted stacking for rock property estimation and detection of gas[J].Geophysical Prospecting,1987,35(9):993-1014.
[2]Bill Goodway,Taiwen Chen,Jon Downton.Improved AVOfluid detection and lithology discrimination using Lamépetrophysical parameters;“λρ”,“μρ”,&“λ/μfluid stack”,from Pand S inversions[J].SEG Technical Program Expanded Abstracts,1997,183-186.
[3]David Gray,Bill Goodway,Taiwen Chen.Bridging the gap:U-sing AVO to detect changes in fundamental elastic constants[J].SEG Technical Program Expanded Abstracts,1999,852-855.
[4]Brian H Russell,Ken Hedlin,Fred J H,et al.Fluid-property discrimination with AVO:A Biot-Gassmann perspective[J].Geophysics,2003,68(1):29-39.
[5]Brian H RRussell,David Gray,Daniel P H.Linearized AVOand poroelasticity[J].Geophysics,2011,76(3):C19-C29.
[6]Mark Quakenbush,Bruce Shang,Chris Tuttle.Poisson impedance[J].The Leading Edge,25(2):128-138.
[7]Yin Xingyao,Zhang Shixin,Zhang Fanchang,et al.Utilizing Russell approximation based elastic wave impedance inversion to conduct reservoir description and fluid identification[J].Oil Geophysical Prospecting,2010,45(3):373-380.[印兴耀,张世鑫,张繁昌,等.利用基于Russell近似的弹性波阻抗反演进行储层描述和流体识别[J].石油地球物理勘探,2010,45(3):373-380.]
[8]Wu Yong,Kang Yili,Ji Weihua,et al.Tight sandstone reservoir“Sweet Spot”prediction of Badaowan Formation in Baka region[J].Journal of Southwest Petroleum University:Science&Technology Edition,2013,35(6):48-56.[吴勇,康毅力,季卫华,等.巴喀地区八道湾组致密砂岩储层“甜点”预测[J].西南石油大学学报:自然科学版,2013,35(6):48-56.]
[9]Xu Duonian,Yin Lu,Qu Jianhua,et al.Prediction method of the low permeability sandy-conglomerate“Sweet Point”reservoirs and its application:A case study of Mahu depression northern slope area in the Junggar Basin[J].Natural Gas Geoscience,2015,26(S1):154-161.[许多年,尹路,瞿建华,等.低渗透砂砾岩“甜点”储层预测方法及应用---以准噶尔盆地玛湖凹陷北斜坡区三叠系百口泉组为例[J].天然气地球科学,2015,26(S1):154-161.]
[10]Yang Shaochun,Zhao Xiaodong,Zhang Xi,et al.Prediction of“sweet spots”of tight sandstone gas reservoirs in Jishen 1area,Turpan-Hami Basin[J].Journal of Xi’an Shiyou University:Natural Science Edition,2014,29(5):1-8.[杨少春,赵晓东,张喜,等.吐鲁番-哈密盆地吉深1区致密砂岩气藏储层“甜点”预测[J].西安石油大学学报:自然科学版,2014,29(5):1-8.]
[11]Zhou Lu,Yuan Jingyi,Ren Dongyao,et al.Forecast on the advantageous area distribution of tight sandstone sweet spots reservoir in Sangonghe Formation Wenjisang area of TurpanHami Basin[J].Natural Gas Geoscience,2015,26(6):1003-1015.[周路,袁敬一,任东耀,等.吐哈盆地温吉桑区块三工河组致密砂岩“甜点”储层有利区分布预测[J].天然气地球科学,2015,26(6):1003-1015.]
[12]Liu Lihui,Li Jianhai,Liu Yuxia.Seismic reservoir property facies analysis and sweet spot prediction[J].Geophysical Prospecting for Petroleum,2013,52(4):432-437.[刘力辉,李建海,刘玉霞.地震物相分析方法与“甜点”预测[J].石油物探,2013,52(4):432-437.]
[13]Pan Guangchao,Zhou Jiaxiong,Han guangming,et al.Seismic prediction method of“sweet”reservoir in middle-deep zone:Acase study from Wenchang A Sag,western Pearl River Mouth Basin[J].Lithologic Reservoirs,2016,28(1):94-100.[潘光超,周家雄,韩光明,等.中深层“甜点”储层地震预测方法探讨---以珠江口盆地西部文昌A凹陷为例[J].岩性油气藏,2016,28(1):94-100.]
[14]Zhang Guoyin,Wang Zhichang,Guo Xuguang,et al.Characteristics and“sweet spot”prediction of dolomitic tight oil reservoirs of the Fengcheng Formation in Wuxia area,Junggar Basin[J].Oil&Gas Geology,2015,36(2):219-229.[张国印,王志章,郭旭光,等.准噶尔盆地乌夏地区风城组云质岩致密油特征及“甜点”预测[J].石油与天然气地质,2015,36(2):219-229.]
[15]Tian Meng,Sun Jing,Liu Weiwei,et al.Ao Nang area FI2five sequence channel sand"sweet spot"region rapid identification technology[C]//2015China Petroleum Institute of Geophysical Prospecting Technology Seminar Proceedings,2015:533-536.[田梦,孙晶,刘伟伟,等.敖南地区FI2五级层序河道砂体“甜点”区快速识别技术[C]//中国石油学会2015年物探技术研讨会论文集,2015:533-536.]
[16]Huang Handong,Ji Yongzhen,Zhang Pin,et al.Application of seismic liquid identification method in prediction of shale gas“sweet spots”in Sichuan Basin[J].Journal of Palaeogeography,2013,15(5):672-678.[黄捍东,纪永祯,张骋,等.地震流体识别方法在四川盆地页岩气“甜点”预测中的应用[J].古地理学报,2013,15(5):672-678.]
[17]Wang Kangning,Sun Zandong,Dong Ning.Prestack inversion based on anisotropic Markov random field-maximum posterior probability inversion and its application to identify shale gas sweet spots[J].Applied Geophysics,2015(4):533-628.
[18]Zhu Chao,Xia Zhiyuan,Wang Chuanwu,et al.Seismic Prediction for Sweet Spot Reservoir of Tight Oil[J].Journal of Jilin University:Earth Science Edition,2015,45(2):602-610.[朱超,夏志远,王传武,等.致密油储层甜点地震预测[J].吉林大学学报:地球科学版,2015,45(2):602-610.]
[19]Si Chaonian,Wu Xingwei,Xia Dongling,et al.The research of“sweet spot”prediction technology for tight sandstone reservoir-a case study of Chang 3reservoir of Yanchang Formation in Weibei Oilfield[J].Progress in Geophysics,2015,30(2):664-671.[司朝年,邬兴威,夏东领,等.致密砂岩油“甜点”预测技术研究---以渭北油田延长组长3油层为例[J].地球物理学进展,2015,30(2):664-671.]
[20]Qin Dewen,Jiang Yong,Hou Zhiqiang,et al.Application of prestack synchronous inversion technology in“sweet spot”prediction of low porosity and permeability reservoir in Xihu sag[J].Reservoir evaluation and development,2015,5(6):12-15.[秦德文,姜勇,侯志强,等.叠前同步反演技术在西湖凹陷低孔渗储层“甜点”预测中的应用[J].油气藏评价与开发,2015,5(6):12-15.]
[21]Li Zhiyong,Qian Feng,Hu Guangmin,et al.Prestack seismic joint inversion of reservoir elastic and petrophysical parameters using deterministic optimization method[J].Chinese Journal of Geophysics,2015,58(5):1706-1716.[李志勇,钱峰,胡光岷,等.储层弹性与物性参数地震叠前同步反演的确定性优化方法[J].地球物理学报,2015,58(5):1706-1716.]
[22]Fang Zhongyu,Zhu Jiangmei,Li Yong,et al.Study on prestack seismic simultaneous inversion and its application[J].Journal of Chengdu University of Technology:Science&Technology Edition,2014,41(2):152-156.[方中于,朱江梅,李勇,等.叠前地震同步反演方法及应用[J].成都理工大学学报:自然科学版,2014,41(2):152-156.]
[23]Liu Zengqin,Wang Yingmin,Bai Guangchen,et al.Application of sweetness and its fusion attribute in the research of Deep-water Reservoir[J].Oil Geophysical Prospecting,2010,45(S1):158-162.[刘曾勤,王英民,白广臣,等.甜点及其融合属性在深水储层研究中的应用[J].石油地球物理勘探,2010,45(S1):158-162.]
[24]Li Tingting,Wang Zhao,Ma Shizhong,et al.Summary of seismic attributes fusion method[J].Progress in Geophysics,2015,30(1):378-385.[李婷婷,王钊,马世忠,等.地震属性融合方法综述[J].地球物理学进展,2015,30(1):378-385.]
[25]Wang Yancang,Qin Fengqi,Du Weiliang,et al.Discussions on optimization and fusion of attributes[J].China Petroleum Exploration,2013,18(6):69-73.[王彦仓,秦凤启,杜维良,等.地震属性优选、融合探讨[J].中国石油勘探,2013,18(6):69-73.]
[26]Barbara J.Radovich and R.Burnet Oliveros.3-D sequence interpretation of seismic instantaneous attributes from the Gorgon Field[J].The Leading Edge,1998,17(9):1286-1293.
[2]Bill Goodway,Taiwen Chen,Jon Downton.Improved AVOfluid detection and lithology discrimination using Lamépetrophysical parameters;“λρ”,“μρ”,&“λ/μfluid stack”,from Pand S inversions[J].SEG Technical Program Expanded Abstracts,1997,183-186.
[3]David Gray,Bill Goodway,Taiwen Chen.Bridging the gap:U-sing AVO to detect changes in fundamental elastic constants[J].SEG Technical Program Expanded Abstracts,1999,852-855.
[4]Brian H Russell,Ken Hedlin,Fred J H,et al.Fluid-property discrimination with AVO:A Biot-Gassmann perspective[J].Geophysics,2003,68(1):29-39.
[5]Brian H RRussell,David Gray,Daniel P H.Linearized AVOand poroelasticity[J].Geophysics,2011,76(3):C19-C29.
[6]Mark Quakenbush,Bruce Shang,Chris Tuttle.Poisson impedance[J].The Leading Edge,25(2):128-138.
[7]Yin Xingyao,Zhang Shixin,Zhang Fanchang,et al.Utilizing Russell approximation based elastic wave impedance inversion to conduct reservoir description and fluid identification[J].Oil Geophysical Prospecting,2010,45(3):373-380.[印兴耀,张世鑫,张繁昌,等.利用基于Russell近似的弹性波阻抗反演进行储层描述和流体识别[J].石油地球物理勘探,2010,45(3):373-380.]
[8]Wu Yong,Kang Yili,Ji Weihua,et al.Tight sandstone reservoir“Sweet Spot”prediction of Badaowan Formation in Baka region[J].Journal of Southwest Petroleum University:Science&Technology Edition,2013,35(6):48-56.[吴勇,康毅力,季卫华,等.巴喀地区八道湾组致密砂岩储层“甜点”预测[J].西南石油大学学报:自然科学版,2013,35(6):48-56.]
[9]Xu Duonian,Yin Lu,Qu Jianhua,et al.Prediction method of the low permeability sandy-conglomerate“Sweet Point”reservoirs and its application:A case study of Mahu depression northern slope area in the Junggar Basin[J].Natural Gas Geoscience,2015,26(S1):154-161.[许多年,尹路,瞿建华,等.低渗透砂砾岩“甜点”储层预测方法及应用---以准噶尔盆地玛湖凹陷北斜坡区三叠系百口泉组为例[J].天然气地球科学,2015,26(S1):154-161.]
[10]Yang Shaochun,Zhao Xiaodong,Zhang Xi,et al.Prediction of“sweet spots”of tight sandstone gas reservoirs in Jishen 1area,Turpan-Hami Basin[J].Journal of Xi’an Shiyou University:Natural Science Edition,2014,29(5):1-8.[杨少春,赵晓东,张喜,等.吐鲁番-哈密盆地吉深1区致密砂岩气藏储层“甜点”预测[J].西安石油大学学报:自然科学版,2014,29(5):1-8.]
[11]Zhou Lu,Yuan Jingyi,Ren Dongyao,et al.Forecast on the advantageous area distribution of tight sandstone sweet spots reservoir in Sangonghe Formation Wenjisang area of TurpanHami Basin[J].Natural Gas Geoscience,2015,26(6):1003-1015.[周路,袁敬一,任东耀,等.吐哈盆地温吉桑区块三工河组致密砂岩“甜点”储层有利区分布预测[J].天然气地球科学,2015,26(6):1003-1015.]
[12]Liu Lihui,Li Jianhai,Liu Yuxia.Seismic reservoir property facies analysis and sweet spot prediction[J].Geophysical Prospecting for Petroleum,2013,52(4):432-437.[刘力辉,李建海,刘玉霞.地震物相分析方法与“甜点”预测[J].石油物探,2013,52(4):432-437.]
[13]Pan Guangchao,Zhou Jiaxiong,Han guangming,et al.Seismic prediction method of“sweet”reservoir in middle-deep zone:Acase study from Wenchang A Sag,western Pearl River Mouth Basin[J].Lithologic Reservoirs,2016,28(1):94-100.[潘光超,周家雄,韩光明,等.中深层“甜点”储层地震预测方法探讨---以珠江口盆地西部文昌A凹陷为例[J].岩性油气藏,2016,28(1):94-100.]
[14]Zhang Guoyin,Wang Zhichang,Guo Xuguang,et al.Characteristics and“sweet spot”prediction of dolomitic tight oil reservoirs of the Fengcheng Formation in Wuxia area,Junggar Basin[J].Oil&Gas Geology,2015,36(2):219-229.[张国印,王志章,郭旭光,等.准噶尔盆地乌夏地区风城组云质岩致密油特征及“甜点”预测[J].石油与天然气地质,2015,36(2):219-229.]
[15]Tian Meng,Sun Jing,Liu Weiwei,et al.Ao Nang area FI2five sequence channel sand"sweet spot"region rapid identification technology[C]//2015China Petroleum Institute of Geophysical Prospecting Technology Seminar Proceedings,2015:533-536.[田梦,孙晶,刘伟伟,等.敖南地区FI2五级层序河道砂体“甜点”区快速识别技术[C]//中国石油学会2015年物探技术研讨会论文集,2015:533-536.]
[16]Huang Handong,Ji Yongzhen,Zhang Pin,et al.Application of seismic liquid identification method in prediction of shale gas“sweet spots”in Sichuan Basin[J].Journal of Palaeogeography,2013,15(5):672-678.[黄捍东,纪永祯,张骋,等.地震流体识别方法在四川盆地页岩气“甜点”预测中的应用[J].古地理学报,2013,15(5):672-678.]
[17]Wang Kangning,Sun Zandong,Dong Ning.Prestack inversion based on anisotropic Markov random field-maximum posterior probability inversion and its application to identify shale gas sweet spots[J].Applied Geophysics,2015(4):533-628.
[18]Zhu Chao,Xia Zhiyuan,Wang Chuanwu,et al.Seismic Prediction for Sweet Spot Reservoir of Tight Oil[J].Journal of Jilin University:Earth Science Edition,2015,45(2):602-610.[朱超,夏志远,王传武,等.致密油储层甜点地震预测[J].吉林大学学报:地球科学版,2015,45(2):602-610.]
[19]Si Chaonian,Wu Xingwei,Xia Dongling,et al.The research of“sweet spot”prediction technology for tight sandstone reservoir-a case study of Chang 3reservoir of Yanchang Formation in Weibei Oilfield[J].Progress in Geophysics,2015,30(2):664-671.[司朝年,邬兴威,夏东领,等.致密砂岩油“甜点”预测技术研究---以渭北油田延长组长3油层为例[J].地球物理学进展,2015,30(2):664-671.]
[20]Qin Dewen,Jiang Yong,Hou Zhiqiang,et al.Application of prestack synchronous inversion technology in“sweet spot”prediction of low porosity and permeability reservoir in Xihu sag[J].Reservoir evaluation and development,2015,5(6):12-15.[秦德文,姜勇,侯志强,等.叠前同步反演技术在西湖凹陷低孔渗储层“甜点”预测中的应用[J].油气藏评价与开发,2015,5(6):12-15.]
[21]Li Zhiyong,Qian Feng,Hu Guangmin,et al.Prestack seismic joint inversion of reservoir elastic and petrophysical parameters using deterministic optimization method[J].Chinese Journal of Geophysics,2015,58(5):1706-1716.[李志勇,钱峰,胡光岷,等.储层弹性与物性参数地震叠前同步反演的确定性优化方法[J].地球物理学报,2015,58(5):1706-1716.]
[22]Fang Zhongyu,Zhu Jiangmei,Li Yong,et al.Study on prestack seismic simultaneous inversion and its application[J].Journal of Chengdu University of Technology:Science&Technology Edition,2014,41(2):152-156.[方中于,朱江梅,李勇,等.叠前地震同步反演方法及应用[J].成都理工大学学报:自然科学版,2014,41(2):152-156.]
[23]Liu Zengqin,Wang Yingmin,Bai Guangchen,et al.Application of sweetness and its fusion attribute in the research of Deep-water Reservoir[J].Oil Geophysical Prospecting,2010,45(S1):158-162.[刘曾勤,王英民,白广臣,等.甜点及其融合属性在深水储层研究中的应用[J].石油地球物理勘探,2010,45(S1):158-162.]
[24]Li Tingting,Wang Zhao,Ma Shizhong,et al.Summary of seismic attributes fusion method[J].Progress in Geophysics,2015,30(1):378-385.[李婷婷,王钊,马世忠,等.地震属性融合方法综述[J].地球物理学进展,2015,30(1):378-385.]
[25]Wang Yancang,Qin Fengqi,Du Weiliang,et al.Discussions on optimization and fusion of attributes[J].China Petroleum Exploration,2013,18(6):69-73.[王彦仓,秦凤启,杜维良,等.地震属性优选、融合探讨[J].中国石油勘探,2013,18(6):69-73.]
[26]Barbara J.Radovich and R.Burnet Oliveros.3-D sequence interpretation of seismic instantaneous attributes from the Gorgon Field[J].The Leading Edge,1998,17(9):1286-1293.