A STUDY OF COMBINING AVA INVERSION WITH PP-WAVE DATA AND PS-WAVE DATA
ZHANG Feng-qi1, LU Zhan-guo2, LIU Yu-tong3
1. Key Laboratory of Earth Exploration and Information Technology, China University of Geosciences, Beijing 100083, China;
2. Beijing Orangelamp Navigation Technology Development Co., Ltd., Beijing 100085, China;
3. Zhongyuan Oil Field Drilling Engineering Technology Institute, Puyang 457001, China
Abstract:The elastic parameters inverted from PP-wave data couldn't reflect the variation of the lithology and the fluid in pore adequately,which results in large uncertainty in the interpretation of oil reservoir.If the information of PS-wave data is added as the constraint,the interpretation ambiguity could be reduced effectively and the stability of inversion could be improved considerably.The method of the joint inversion presented in this paper uses the theory of GLI(generalized linear inversion) to invert P-wave velocity,S-wave velocity and density iteratively based on the exact Zoeppritz equation.And the precision of S-wave velocity inverted from the joint inversion is improved largely compared with that of inversion by only using PP-wave data.
张丰麒, 陆占国, 刘昱彤. 联合PP、PS波叠前AVA反演方法[J]. 物探与化探, 2012, 36(6): 985-990.
ZHANG Feng-qi, LU Zhan-guo, LIU Yu-tong. A STUDY OF COMBINING AVA INVERSION WITH PP-WAVE DATA AND PS-WAVE DATA. Geophysical and Geochemical Exploration, 2012, 36(6): 985-990.
[1] Mahmoudian F.Linear AVO Inversion of Multi-component Surface Seismic and VSP Data[D].Calgary:University of Calgary,2006.[2] Larsen J A.AVO Inversion by Simultaneous P-P and P-S Inversion[D].Calgary:University of Calgary,1999.[3] Zhang H.Interpretive PP and PS Joint Inversion[D].Calgary:University of Calgary,2003.[4] Veire H H,Landre M.Simultaneous Inversion of PP and PS seismic data[J].Geophysics,2006,71(3):1-10.[5] Xu Y,Bancroft J C.AVO case study:Extraction of Lame's parameters from vertical component seismic data[R].Geotriad'98,Canada,1998[6] Gray F D,Andersen E A.The Application of AVO and Inversion to Formation Properties[J].World Oil,2000,221(7).[7] Wang Y.Approximations to the Zoeppritz equations and their use in AVO analysis[J].Geophysics,1999,64:1920-1927.[8] Ostrander W J.Plane-wave reflection coefficients for gas sands at nonormal angles of incidence[J].Geophysics,1984,49(10):1637-1648.[9] Xu Y.AVO developments applied to Blackfoot 3C-2D broadband line.Calgary:University of Calgary,1999.[10] Stewart R R.Joint P and P-SV inversion[R].CREWES Research Report,1990,2:112-115.[11] Tarantola A.A strategy for nonlinear elastic inversion of seismic reflection data[J].Geophysics,1986,51(10):1893-1903.[12] Debski W,Tarantola A.Information on elastic parameters obtained from the amplitudes of reflected waves[J].Geophysics,1995,60:1426-1436.[13] Jin S,Cambois G,Vuillermoz C.Shear-wave velocity and density estimation from PS-wave AVO analysis:Application to an OBS database from the North Sea[J].Geophysics,2002, 65(5):1446-1454.[14] Downton J E, Lines L.Constrained three parameter AVO inversion and uncertainty analysis[C]//San Antonio,71st Annunal International Meeting,SEG,2001:9-14.[15] Ensley R A.Comparison of P-wave and S-wave seismic data:A new method for detecting gas reservoir[J].Geophysics,1984,49:1420-1431.[16] Vestrum R W,Stewart R R.Joint P and P-SV inversion:application and testing.CREWES Research Report,1993,5(13):1-7.[17] Larsen J A,Margrave G F,Lu H.Simultaneous P-P and P-S inversion by weighted stacking applied to the Blackfoot 3C-3D survey.CREWES Research Report,1998,10(50):1-22.[18] Zhang H,Margrave G F.Joint PP-PS inversion at Pikes Peak oilfield,Saskatchewan[R].CREWES Research Report,2003,15:1-12.[19] 张树林,李绪宣,姜立红.海上多波多分量地震地质层位对比方法[J].天然气地球科学,2000,11(1):28-35.[20] 马劲风,贾春环.转换波人工合成地震记录与速度反演方法研究[J].石油地球物理勘探,1999,34(5):509-519.[21] 杜世通.地震波动力学[M].东营:石油大学出版社,1996.[22] 赵邦六.多分量地震勘探技术理论与实践[M].北京:石油工业出版社,2007:1.[23] 孙鹏远.多属性AVO分析及弹性参数反演方法研究[D].长春:吉林大学,2007.