基于小层约束地震反演技术在T油田的应用
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摘要
为了实现地震储层预测技术向油田开发领域的延伸,了解储层展布体系,提出了基于开发小层的储层精细地震反演技术。首先利用高分辨率层序地层学理论指导小层划分,确保地层格架的等时性和合理性。在此基础上以开发小层为约束,以测井资料为出发点,根据地震响应的趋势进行波阻抗反演,预测储层展布规律。在T油田的应用证明,基于小层约束的地震反演能够提高地震资料的纵向分辨能力,有效提高储层预测的精度,可更加清楚地揭示小层内储层的分布特征,为油藏评价、油田开发方案编制和实施提供翔实的基础资料。
This paper puts forward a fine seismic inversion technique with the thin layer as a constraint to build up the connection between seismic reservoir prediction and oilfield development and construct a reasonable reservoir exhibition system for oilfield development.The approach of thin-layer constrained seismic inversion included two parts.The first is thin-layer classification and correlation under the guidance of high resolution sequence stratigraphy,in order to ensure the formation is isochronal and reasonable.Secondly,with the thin layer as a constraint,logging data as the starting point and according to the trend of seismic data,seismic inversion be carried out for reservoir prediction.The application of thin-layer constrained seismic inversion technique in T oil field verifies that it can make good use of advantages of both seismic and well data and construct an effective reservoir exhibition system for thin layer,be favorable to reservoir evaluation and further reservoir exploration and production.
This paper puts forward a fine seismic inversion technique with the thin layer as a constraint to build up the connection between seismic reservoir prediction and oilfield development and construct a reasonable reservoir exhibition system for oilfield development.The approach of thin-layer constrained seismic inversion included two parts.The first is thin-layer classification and correlation under the guidance of high resolution sequence stratigraphy,in order to ensure the formation is isochronal and reasonable.Secondly,with the thin layer as a constraint,logging data as the starting point and according to the trend of seismic data,seismic inversion be carried out for reservoir prediction.The application of thin-layer constrained seismic inversion technique in T oil field verifies that it can make good use of advantages of both seismic and well data and construct an effective reservoir exhibition system for thin layer,be favorable to reservoir evaluation and further reservoir exploration and production.
引文
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[4]李建华,刘百红,张延庆等.基于井间地震资料的储层精细描述方法.石油地球物理勘探,2008,43(1):41～47Li Jianhua,Liu Baihong,Zhang Yanqing et al.Meth-od for fine-description of reservoir based on cross-holeseismic data.OGP,2008,43(1):41～47
[5]Layla Saleh Al Muhairi et al.Understanding a reser-voir:3Dgeological modeling using scenario-based ap-proach and conventional geostatistics,Onshore,UAE.SPE 101913,2006,1～13
[6]Li Guofa,Li Hao,Ma Yanyan et al.Analysis of theambiguity of log-constrained seismic impedance inver-sion.Petroleum Science,2011,8(2):151～156
[7]Yang Haijun,Xu Yongzhong,Huang Zhibin et al.Com-parison between several multi-parameter seismic inver-sion methods in identifying plutonic igneous rocks.Mining Science and Technology,2011,21(3):325～331
[8]张秀丽.井约束地震反演技术在储层预测中的应用——以大庆油田杏56区块为例.石油地球物理勘探,2009,44(增刊1):145～149Zhang Xiuli.Application of well constrained seismicinversion technique in reservoir prediction—A casestudy for Xing 56 Block in Daqing Oilfield.OGP,2009,44(Sup 1):145～149
[9]高军,刘雅琴,于京波等.滨里海盆地东缘中区块盐下构造识别与储层预测.石油地球物理勘探,2008,43(增刊1):98～102Gao Jun,Liu Yaqin,Yu Jingbo et al.Identifying sub-salt structure and reservoir prediction in central blockof eastern margin of Pre-Caspian basin.OGP,2008,43(Sup 1):98～102
[2]李庆忠.岩性油气藏地震勘探若干问题的讨论.岩性油气藏,2008,20(2):1～15Li Qingzhong.Discussion on seismic exploration of li-thologic reservoirs.Lithologic Reservoirs,2008,20(2):1～15
[3]Cooke D A and Schneider W A.Generalized linear in-version of reflection seismic data.Geophysics,1983,48(6):665～676
[4]李建华,刘百红,张延庆等.基于井间地震资料的储层精细描述方法.石油地球物理勘探,2008,43(1):41～47Li Jianhua,Liu Baihong,Zhang Yanqing et al.Meth-od for fine-description of reservoir based on cross-holeseismic data.OGP,2008,43(1):41～47
[5]Layla Saleh Al Muhairi et al.Understanding a reser-voir:3Dgeological modeling using scenario-based ap-proach and conventional geostatistics,Onshore,UAE.SPE 101913,2006,1～13
[6]Li Guofa,Li Hao,Ma Yanyan et al.Analysis of theambiguity of log-constrained seismic impedance inver-sion.Petroleum Science,2011,8(2):151～156
[7]Yang Haijun,Xu Yongzhong,Huang Zhibin et al.Com-parison between several multi-parameter seismic inver-sion methods in identifying plutonic igneous rocks.Mining Science and Technology,2011,21(3):325～331
[8]张秀丽.井约束地震反演技术在储层预测中的应用——以大庆油田杏56区块为例.石油地球物理勘探,2009,44(增刊1):145～149Zhang Xiuli.Application of well constrained seismicinversion technique in reservoir prediction—A casestudy for Xing 56 Block in Daqing Oilfield.OGP,2009,44(Sup 1):145～149
[9]高军,刘雅琴,于京波等.滨里海盆地东缘中区块盐下构造识别与储层预测.石油地球物理勘探,2008,43(增刊1):98～102Gao Jun,Liu Yaqin,Yu Jingbo et al.Identifying sub-salt structure and reservoir prediction in central blockof eastern margin of Pre-Caspian basin.OGP,2008,43(Sup 1):98～102
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