三维重力地震剥层联合反演
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摘要
以地震资料解释的三维构造图作为模型,用重力三维正演剥离基底及基底以上界面所产生的重力效应,然后对分离后的基底岩性异常进行反演求取基底密度。在具体联合反演算法上,首次将广泛用于地震层析成像反演的DLSQR法引入位场反演,不仅增加了联合反演结果的稳定性,而且极大地提高了反演速度。理论模型的试算和实际资料的反演结果表明,两者反演的剩余密度等值线图形十分相似,剩余密度最小值和最大值相对误差小于4%。
Petroleum Exploration and Development Institute,Beijing City,100083,China Abstract:Based on the model of 3 D structural map interpreted by seismic data,the 3 D forward gravity modeling is used to model the gravitational effect produced by stripped basement and interfaces above base,then inversion for separated anomaly of base rock is implemented to evaluate the basement density.As concerns the concrete algorithms of joint inversion,the DLSQR method widely used for seismic tomographic imaging is introduced in potential inversion,that not only improved the stability of joint inversion results,but also increased the inversion speed.The results of test of theoretical models and inversion of real data showed that both have similar isoplethal map of density contract,the relative errors between minimum and maximum density contract is less than 4%.
Petroleum Exploration and Development Institute,Beijing City,100083,China Abstract:Based on the model of 3 D structural map interpreted by seismic data,the 3 D forward gravity modeling is used to model the gravitational effect produced by stripped basement and interfaces above base,then inversion for separated anomaly of base rock is implemented to evaluate the basement density.As concerns the concrete algorithms of joint inversion,the DLSQR method widely used for seismic tomographic imaging is introduced in potential inversion,that not only improved the stability of joint inversion results,but also increased the inversion speed.The results of test of theoretical models and inversion of real data showed that both have similar isoplethal map of density contract,the relative errors between minimum and maximum density contract is less than 4%.
引文
[1]杨文采著.地球物理反演的理论与方法.北京:地质出版社,1997
[2]杨辉等.综合地球物理联合反演综述.地球物理勘探进展,2002,2
[3]王家林,吴健生.中国典型含油气盆地综合地球物理研究.上海:同济大学出版社,1995
[4]王家林,吴健生,陈冰著.珠江口盆地和东海陆架盆地基底结构的综合地球物理研究.上海:同济大学出版社,1997
[5]王一新,王家林,万明浩,钟慧智著.石油综合地球物理方法与应用.北京:石油工业出版社,1995
[6]陈冰,王家林.剥离法与综合模型法的地球物理综合反演[A].见:王家林,吴健生主编.中国典型含油气盆地综合地球物理研究[C].上海:同济大学出版社,1995,125～135
[7]王一新,廉西京.重力与地震联合解释在石油勘探中的应用.石油物探,1983,22(3)
[8]关小平等.谈重震联合反演问题.物探与化探,1994,18(6):429～437
[9]SavinoJM,RodiW L andMassoJF.Simultaneousinversion of m ultiple geophysical data sets for earthstructure.Presented at50 thSEG Mtg,1980
[10]GolizdraG Y.Statement of the problem ofcom prehensive interpretation of gravity fields andseism ic observations.IzvestEarthPhys,1980,16,535～539
[11]L inesL ,SchultzA K andTreitelS.Cooperativeinversion of geophysical data.Abstracts ofSEGMtg,1987,814～816
[12]L inesL R,SchultzA K andTreitelS.Cooperativeinversion of geophysical data.Geophysics,1988,53(1):8～20
[13]王西文,孟昭泰,张工会等.重力、地震联合反演在研究含油气盆地构造中的应用.石油地球物理勘探,1991,26(2):201～209
[14]AleseevA S.联合反演问题解的定量描述及其一般特性.SEG61届年会论文集,北京:石油工业出版社,1993,595～596
[15]汪宏年等.层状介质中重力、地震联合反演的迭代算法.石油地球物理勘探,1993,28(2):153～165
[16]冯锐等.地震—重力联合反演中的非块状一致性模型.地球物理学报,1993,36(4):463～475
[17]张树林,朱介寿,贺振华.井间地震和逆VSP联合层析成像.石油地球物理勘探,1993,28(5):577～583
[18]关小平,黄嘉正,罗孝宽.重力、地震资料联合反演实例.石油地球物理勘探,1995,30(3):379～385
[19]王西文.用重力、地震资料联合反演直预测油气藏的方法.石油地球物理勘探,1997,32(2):221～228
[20]杨辉.重力、地震联合反演基岩密度及综合解释.石油地球物理勘探,1998,33(4):496～502
[2]杨辉等.综合地球物理联合反演综述.地球物理勘探进展,2002,2
[3]王家林,吴健生.中国典型含油气盆地综合地球物理研究.上海:同济大学出版社,1995
[4]王家林,吴健生,陈冰著.珠江口盆地和东海陆架盆地基底结构的综合地球物理研究.上海:同济大学出版社,1997
[5]王一新,王家林,万明浩,钟慧智著.石油综合地球物理方法与应用.北京:石油工业出版社,1995
[6]陈冰,王家林.剥离法与综合模型法的地球物理综合反演[A].见:王家林,吴健生主编.中国典型含油气盆地综合地球物理研究[C].上海:同济大学出版社,1995,125～135
[7]王一新,廉西京.重力与地震联合解释在石油勘探中的应用.石油物探,1983,22(3)
[8]关小平等.谈重震联合反演问题.物探与化探,1994,18(6):429～437
[9]SavinoJM,RodiW L andMassoJF.Simultaneousinversion of m ultiple geophysical data sets for earthstructure.Presented at50 thSEG Mtg,1980
[10]GolizdraG Y.Statement of the problem ofcom prehensive interpretation of gravity fields andseism ic observations.IzvestEarthPhys,1980,16,535～539
[11]L inesL ,SchultzA K andTreitelS.Cooperativeinversion of geophysical data.Abstracts ofSEGMtg,1987,814～816
[12]L inesL R,SchultzA K andTreitelS.Cooperativeinversion of geophysical data.Geophysics,1988,53(1):8～20
[13]王西文,孟昭泰,张工会等.重力、地震联合反演在研究含油气盆地构造中的应用.石油地球物理勘探,1991,26(2):201～209
[14]AleseevA S.联合反演问题解的定量描述及其一般特性.SEG61届年会论文集,北京:石油工业出版社,1993,595～596
[15]汪宏年等.层状介质中重力、地震联合反演的迭代算法.石油地球物理勘探,1993,28(2):153～165
[16]冯锐等.地震—重力联合反演中的非块状一致性模型.地球物理学报,1993,36(4):463～475
[17]张树林,朱介寿,贺振华.井间地震和逆VSP联合层析成像.石油地球物理勘探,1993,28(5):577～583
[18]关小平,黄嘉正,罗孝宽.重力、地震资料联合反演实例.石油地球物理勘探,1995,30(3):379～385
[19]王西文.用重力、地震资料联合反演直预测油气藏的方法.石油地球物理勘探,1997,32(2):221～228
[20]杨辉.重力、地震联合反演基岩密度及综合解释.石油地球物理勘探,1998,33(4):496～502
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