时移地震监测水驱前沿的方法和应用研究
|
摘要
油藏开发过程的有效监测是合理开采油藏和提高采收率的关键之一.本文根据水驱油藏流体变化的基本规律以及其他实验和统计结果,讨论了长期注水开采油藏储层物性变化及其引起的弹性参数变化和地震响应变化特征,明确了水驱前沿的概念,提出了基于差异振幅和奇异值分析的时移地震监测水驱前沿方法.理论模型研究表明该方法是可行的.通过对东部地区某油田的两次三维地震数据处理、分析,确定了水驱前沿的位置,后钻的两口井证实了预测结果的准确性和方法的有效性.研究结果还表明,通过水驱前沿的监测并结合初期油藏描述的结果,时移地震可以很好地预测长期水驱油藏剩余油的分布.
Monitoring recovery processes is one of the keys to optimize reservoir management and improve production efficiency.Waterflooding causes the changes of reservoir properties(such as pressure,saturation,porosity etc.) and then the changes of reservoir elastic parameters.Based on the law of fluid movement and by analyzing the changes,we discussed the characteristics of seismic response of waterflooding reservoir by forward modeling and gave a definition of waterflooding front.A method based on differential amplitude and singularity value analysis was presented to monitor the front from time-lapse seismic.The method has been tested successfully by a synthetic example and field data from eastern China.The two latter drillings confirmed that the prediction of waterflooding front is accurate.The results also indicated that the distribution of residual oil could be predicted effectively from time-lapse seismic by monitoring the waterflooding front and integrating the initial reservoir characterization.
Monitoring recovery processes is one of the keys to optimize reservoir management and improve production efficiency.Waterflooding causes the changes of reservoir properties(such as pressure,saturation,porosity etc.) and then the changes of reservoir elastic parameters.Based on the law of fluid movement and by analyzing the changes,we discussed the characteristics of seismic response of waterflooding reservoir by forward modeling and gave a definition of waterflooding front.A method based on differential amplitude and singularity value analysis was presented to monitor the front from time-lapse seismic.The method has been tested successfully by a synthetic example and field data from eastern China.The two latter drillings confirmed that the prediction of waterflooding front is accurate.The results also indicated that the distribution of residual oil could be predicted effectively from time-lapse seismic by monitoring the waterflooding front and integrating the initial reservoir characterization.
引文
[1]Wei He,Anderson R N,Boulanger A,et al.4-D seismic:thefourth dimension in reservoir management.World Oil,1997,218:109~115
[2]陈小宏,牟永光.四维地震油藏监测技术及其应用.石油地球物理勘探,1998,33:707~715Chen X H,Mu Y G.Four-dimensional seismic reservoir monitoringtechnique and its application.Oil Geophysical Prospecting(inChinese),1998,33:707~715
[3]Wang Z,Hirsche W K,Sedgwick G.Seismic monitoring of waterfloods?—A petrophysical study.Geophysics,1991,56:1614~1623
[4]Wang Z.Feasibility of time-lapse seismic reservoir monitoring:thephysical basis.The Leading Edge,1997,56:1327~1329
[5]Lumley D E,Behrens R A,Wang Z.Assessing the technical risk ofa 4-D seismic project.The Leading Edge,1997,56:1287~1291
[6]Maria Angela Capello de P,Batzle M.Rock physics in seismicmonitoring.The Leading Edge,1997,56:1255~1260
[7]Wever A,Spetzler J.Criteria for source and receiver positioning intime-lapse seismic acquisition.74thSEG Expanded Abstracts,2004,23:2319
[8]Vauthrin R,Bird B,Eastwood J,et al.Improvements in 4D legacydata quality and repeatability through reprocessing:Lana Field.69thSEG Expanded Abstracts,1999,18:1679
[9]Rickett J,Lumley D E.A cross-equalization processing flow for off-the-shelf 4D seismic data.68thSEG Expanded Abstracts,1998,17:16
[10]Vauthrin R,Khan M,Stanley L R.Using legacy seismic data in anintegrated time-lapse study:Lena Field,Gulf of Mexico.TheLeading Edge,2000,59:294~302
[11]陈小宏.四维地震数据的归一化方法及实例处理.石油学报,1999,20:22~36Chen X H.Gross-equatization in 4-D seismic and case study.ActaPetroles Sinica(in Chinese),1999,20:22~26
[12]Zhang Y,Schmitt D R.Time-lapse impedance inversion using hybriddata transformation and the spike deconvolution method.74thSEGExpanded Abstracts,2004,23:2303
[13]Vasco D W.Seismic imaging of reservoir flow properties:Time-lapsepressure changes.Geophysics,2004,69:511~521
[14]Vasco D W,Akhil Datta-Gupta,Behrens R,et al.Seismic imagingof reservoir flow properties:Time-lapse amplitude changes.Geophysics,2004,69:1425~1442
[15]Landro M.Discrimination between pressure and fluid saturationchanges from time-lapse seismic data.Geophysics,2001,66:836~844
[16]Gouveia W P,Johnston D H.Jotun 4D:Characterization of fluidcontact movement from time-lapse seismic and production logging tooldata.The Leading Edge,2004,63:1187~1194
[17]Wulff A M,Mjaaland S.Seismic monitoring of fluid fronts:Anexperimental study.Geophysics,2002,67:221~229
[18]张建国,雷光伦,张艳玉.油气层渗流力学.北京:石油大学出版社,1998Zhang J G,Lei G L,Zhang Y Y.Dynamics of Fluids in Reservoir(in Chinese).Beijing:China University of Petroleum Press,1998
[19]石玉梅.油气藏流体识别的地球物理基础理论研究[博士后研究报告].北京:石油勘探开发研究院,2003Shi Y M.Studies on geophysical theoretical basis for fluididentification of reservoir[Post-doctoral studying report](inChinese).Beijing:RIPED,PetroChina,2003
[20]石玉梅,姚逢昌,刘雯林.陆相碎屑岩油藏长期水驱时移地震监测的可行性.石油地球物理勘探,2005,40:328~333Shi Y M,Yao F C,Li W L.Feasibility of seismic monitoring forcontinental clastic rocks reservoir with long-term water-floodingrecovery.Oil Geophysical Prospecting(in Chinese),2005,40:328~333
[2]陈小宏,牟永光.四维地震油藏监测技术及其应用.石油地球物理勘探,1998,33:707~715Chen X H,Mu Y G.Four-dimensional seismic reservoir monitoringtechnique and its application.Oil Geophysical Prospecting(inChinese),1998,33:707~715
[3]Wang Z,Hirsche W K,Sedgwick G.Seismic monitoring of waterfloods?—A petrophysical study.Geophysics,1991,56:1614~1623
[4]Wang Z.Feasibility of time-lapse seismic reservoir monitoring:thephysical basis.The Leading Edge,1997,56:1327~1329
[5]Lumley D E,Behrens R A,Wang Z.Assessing the technical risk ofa 4-D seismic project.The Leading Edge,1997,56:1287~1291
[6]Maria Angela Capello de P,Batzle M.Rock physics in seismicmonitoring.The Leading Edge,1997,56:1255~1260
[7]Wever A,Spetzler J.Criteria for source and receiver positioning intime-lapse seismic acquisition.74thSEG Expanded Abstracts,2004,23:2319
[8]Vauthrin R,Bird B,Eastwood J,et al.Improvements in 4D legacydata quality and repeatability through reprocessing:Lana Field.69thSEG Expanded Abstracts,1999,18:1679
[9]Rickett J,Lumley D E.A cross-equalization processing flow for off-the-shelf 4D seismic data.68thSEG Expanded Abstracts,1998,17:16
[10]Vauthrin R,Khan M,Stanley L R.Using legacy seismic data in anintegrated time-lapse study:Lena Field,Gulf of Mexico.TheLeading Edge,2000,59:294~302
[11]陈小宏.四维地震数据的归一化方法及实例处理.石油学报,1999,20:22~36Chen X H.Gross-equatization in 4-D seismic and case study.ActaPetroles Sinica(in Chinese),1999,20:22~26
[12]Zhang Y,Schmitt D R.Time-lapse impedance inversion using hybriddata transformation and the spike deconvolution method.74thSEGExpanded Abstracts,2004,23:2303
[13]Vasco D W.Seismic imaging of reservoir flow properties:Time-lapsepressure changes.Geophysics,2004,69:511~521
[14]Vasco D W,Akhil Datta-Gupta,Behrens R,et al.Seismic imagingof reservoir flow properties:Time-lapse amplitude changes.Geophysics,2004,69:1425~1442
[15]Landro M.Discrimination between pressure and fluid saturationchanges from time-lapse seismic data.Geophysics,2001,66:836~844
[16]Gouveia W P,Johnston D H.Jotun 4D:Characterization of fluidcontact movement from time-lapse seismic and production logging tooldata.The Leading Edge,2004,63:1187~1194
[17]Wulff A M,Mjaaland S.Seismic monitoring of fluid fronts:Anexperimental study.Geophysics,2002,67:221~229
[18]张建国,雷光伦,张艳玉.油气层渗流力学.北京:石油大学出版社,1998Zhang J G,Lei G L,Zhang Y Y.Dynamics of Fluids in Reservoir(in Chinese).Beijing:China University of Petroleum Press,1998
[19]石玉梅.油气藏流体识别的地球物理基础理论研究[博士后研究报告].北京:石油勘探开发研究院,2003Shi Y M.Studies on geophysical theoretical basis for fluididentification of reservoir[Post-doctoral studying report](inChinese).Beijing:RIPED,PetroChina,2003
[20]石玉梅,姚逢昌,刘雯林.陆相碎屑岩油藏长期水驱时移地震监测的可行性.石油地球物理勘探,2005,40:328~333Shi Y M,Yao F C,Li W L.Feasibility of seismic monitoring forcontinental clastic rocks reservoir with long-term water-floodingrecovery.Oil Geophysical Prospecting(in Chinese),2005,40:328~333
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心