胜利油区时移地震技术应用研究与实践
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摘要
以胜利油区继承性数据和开发阶段最新采集的三维地震数据为实例,探讨了时移地震的可行性实践,研究了多次采集的地震数据在开发中的应用。分析了引起采集地震数据不一致的因素,并进行叠前的一致性及叠后的互均化处理,消除由于采集、处理不一致对地震数据在能量、频率、相位等方面的影响,突出油藏变化带来的地震属性差异;与生产动态数据相结合,分析油藏的连通性以及剩余油分布,指导注采方案调整,最终达到提高采收率的目的。胜利油区的探索实践表明,时移地震可以有条件地开展实际试验研究与应用,如何利用重新采集的高精度三维地震数据并综合油藏工程等技术解决更多的开发难题是一个策略问题。在油田开发实际应用中应当协同考虑时移和多次采集地震数据2方面的研究与应用。
In this paper,the author takes the old dataset and the newly-acquired 3D dataset in the development stage from Shengli oilfield as an example,on one hand,the feasibility of time-lapse seismic has been discussed,on the other hand,the application of the multiple acquisition dataset in the oilfield development has been explored as well.Concerning the inconsistencies to the multiple seismic data acquisition and processing as well as inconsistencies in the analysis later on,the prestack consistency and poststack cross-equalization processing are applied in order to eliminate the effects to the energy,frequency and phase of the seismic data caused by inconsistencies between acquisition and processing,and make the difference caused by the reservoir more evident.Integrating with the dynamic production data,we try to analyze reservoir continuity and residual oil distribution as well as the adjustment of the injection-production scheme,so as to achieve the EOR.Based on the application in Shengli oilfield,it indicates that the time-lapse seismic can be applied in certain favorable and feasible conditions.Furthermore,it is a strategic issue on how to apply the re-acquired high-precision 3D data integrated with reservoir engineering to solve more development problems.The two aspects of time-lapse (multiple acquisition) seismic application in the oilfield development should be considered in a comprehensive way.
In this paper,the author takes the old dataset and the newly-acquired 3D dataset in the development stage from Shengli oilfield as an example,on one hand,the feasibility of time-lapse seismic has been discussed,on the other hand,the application of the multiple acquisition dataset in the oilfield development has been explored as well.Concerning the inconsistencies to the multiple seismic data acquisition and processing as well as inconsistencies in the analysis later on,the prestack consistency and poststack cross-equalization processing are applied in order to eliminate the effects to the energy,frequency and phase of the seismic data caused by inconsistencies between acquisition and processing,and make the difference caused by the reservoir more evident.Integrating with the dynamic production data,we try to analyze reservoir continuity and residual oil distribution as well as the adjustment of the injection-production scheme,so as to achieve the EOR.Based on the application in Shengli oilfield,it indicates that the time-lapse seismic can be applied in certain favorable and feasible conditions.Furthermore,it is a strategic issue on how to apply the re-acquired high-precision 3D data integrated with reservoir engineering to solve more development problems.The two aspects of time-lapse (multiple acquisition) seismic application in the oilfield development should be considered in a comprehensive way.
引文
[1]黄旭日.国外时移地震技术的研究状况[J].勘探地球物理进展,2003,26(1):7-12.
[2]Lane H S,KjelstadliR M,Barkved O I,et al.Constraining reservoir uncertainty with frequent4D seismic data at Valhall field[R].Houston,USA:Offshore Technology Conference,2006.
[3]Hatchell P,Kawar R,Savitski A.Integrating4D seismic,geome-chanics and reservoir simulation in the Valhall oil field[R].Ex-panded Abstracts of EAGE67th Annual Conference,2006.
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[5]凌云,黄旭日,孙德胜,等.3.5D地震勘探实例研究[J].石油物探,2007,46(4):339-352.
[6]Huang X R,Meister L,Workman R.Improving production history matching using time-lapse seismic data[J].The Leading Edge,1998,17(10):1430-1433.
[7]Rickett J.A cross equalization processing flow for off the shelf4-D seismic data[C].Tulsa:SEG68th Annual Meeting,1998.
[8]Huang X R.Integrating time-lapse seismic with production data:a tool for reservoir engineering[J].The Leading Edge,2001,20(10):1148-1153.
[9]Hall S A,MacBeth C,StammeijerJ,et al.Time-lapse seismicanal-ysis of pressure depletion in the Southern Gas Basin[J].Geophysi-cal Prospecting,2006,54:63-73.
[10]Landro M,Solheim O A,Hilde E,et al.The Gullfaks4D seismic study[J].Petroleum Geoscience,1999,5(3):213-226.
[11]吴安楚.宽方位三维地震采集设计技术应用[J].油气地质与采收率,2009,16(3):65-67.
[12]Andersen C F,Grosfeld V,Van Wijngaarden A J,et al.Interactive interpretation of4D prestack inversion data using rock physics tem-plates,dual classification,and rea-time visualization[J].The Leading Edge,2009,28(8):898-906.
[13]Huang X R,Meister L,Workman R.Improvement and sensitivity of reservoir characterization derived from time-lapse seismic data[C].Expanded Abstracts of73rd SPE Annual Meeting,1998,49:146.
[14]Degaard E,Avseth P.Interpretation of elastic inversion results u-sing rock physics templates[R].Expanded Abstracts of EAGE65th Annual Conference,2003.
[2]Lane H S,KjelstadliR M,Barkved O I,et al.Constraining reservoir uncertainty with frequent4D seismic data at Valhall field[R].Houston,USA:Offshore Technology Conference,2006.
[3]Hatchell P,Kawar R,Savitski A.Integrating4D seismic,geome-chanics and reservoir simulation in the Valhall oil field[R].Ex-panded Abstracts of EAGE67th Annual Conference,2006.
[4]Lumley D E,Behrens R A,Wang Z.Assessing the technical risk of a4-D seismic project[J].The Leading Edge,1997,16(9):1287-1291.
[5]凌云,黄旭日,孙德胜,等.3.5D地震勘探实例研究[J].石油物探,2007,46(4):339-352.
[6]Huang X R,Meister L,Workman R.Improving production history matching using time-lapse seismic data[J].The Leading Edge,1998,17(10):1430-1433.
[7]Rickett J.A cross equalization processing flow for off the shelf4-D seismic data[C].Tulsa:SEG68th Annual Meeting,1998.
[8]Huang X R.Integrating time-lapse seismic with production data:a tool for reservoir engineering[J].The Leading Edge,2001,20(10):1148-1153.
[9]Hall S A,MacBeth C,StammeijerJ,et al.Time-lapse seismicanal-ysis of pressure depletion in the Southern Gas Basin[J].Geophysi-cal Prospecting,2006,54:63-73.
[10]Landro M,Solheim O A,Hilde E,et al.The Gullfaks4D seismic study[J].Petroleum Geoscience,1999,5(3):213-226.
[11]吴安楚.宽方位三维地震采集设计技术应用[J].油气地质与采收率,2009,16(3):65-67.
[12]Andersen C F,Grosfeld V,Van Wijngaarden A J,et al.Interactive interpretation of4D prestack inversion data using rock physics tem-plates,dual classification,and rea-time visualization[J].The Leading Edge,2009,28(8):898-906.
[13]Huang X R,Meister L,Workman R.Improvement and sensitivity of reservoir characterization derived from time-lapse seismic data[C].Expanded Abstracts of73rd SPE Annual Meeting,1998,49:146.
[14]Degaard E,Avseth P.Interpretation of elastic inversion results u-sing rock physics templates[R].Expanded Abstracts of EAGE65th Annual Conference,2003.
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