J4

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Crosswell Seismic Constrained Acoustic Impedance Inversion

YANG Qin-yong1,2, HAN Li-guo1,CAO Hui2,WANG De-li1,CHEN Guo-jin2,XU Zhuo1   

  1. 1.College of GeoExploration Science and Technology,Jilin University, Changchun 130026,China;2.Nanjing Institute of Geophysical Prospecting, Nanjing 210014, China
  • Received:2006-01-17 Revised:1900-01-01 Online:2006-05-26 Published:2006-05-26
  • Contact: YANG Qin-yong

Abstract: Seismic traces obtained from crosswell reflection imaging and well log data are used in the multi well log restriction random inverse acoustic impedance inversion. First the crosswell reflection imaged data was inverted to obtain an acoustic impedance profile. Then some acoustic impedance traces extracted from the inversion profile were used as virtual log and combined with well log data to implement the crosswell and surface seismic joint inversion. The modeling and filed data inversion results shown that crosswell and surface seismic joint inversion can provide more restriction in the surface seismic inversion and can improve accuracy of inversion.

Key words: crosswell seismic, constrained inversion, virtual log, acoustic impedance

CLC Number: 

  • P631.4
[1] Yin Changchun, Qiu Changkai, Liu Yunhe, Cai Jing. Weighted Laterally-Constrained Inversion of Time-Domain Airborne Electromagnetic Data [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(1): 254-261.
[2] Kan Guangming, Su Yuanfeng, Liu Baohua, Li Guanbao, Meng Xiangmei. Properties of Acoustic Impedance of Seafloor Sediments in the Middle Area of the Southern Yellow Sea [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(1): 386-395.
[3] GU Jian-liang, LIU Zhao-jun, CHEN Yong-cheng, FANG Shi, YAN Lei, SUN Ping-chang. The Technique of Log-Seismic Multi-Attributes Density Curves Reconstruct Inversion and Its Application [J]. J4, 2010, 40(3): 699-703.
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