THE INTEGRATATION FOR PROCESSING AND INTERPRETATION OF SUB-SALT STRUCTURE IN PRE-CASPIAN BASIN
YANG Qin-lin1,2, WANG Yan-chun1, ZHANG Jing2, LIU Wen-qing2, WANG Zhen3
1. College of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China; 2. Northwest Branch of Research Institute of Petroleum Exploration & Development, PetroChina, Lanzhou 730020, China; 3. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China
Abstract：There are salt domes of great thickness deposited in Pre-Caspian basin.As the salt layer thickness varies dramatically,it is difficult to perform imagery for the sub-salt seismic data,and the structure features show distortions.The elimination of the salt velocity influence and the restoration of the real sub-salt structure form constitute the urgent problems in oil-gas exploration.Through the integrated study of processing and interpretation,the authors used the floating datum pre-stack time migration method to conduct imagery for high and steep structures based on pre-stack fidelity of the static correction and to make salt amplitude recovery.Finally,the pre-stack reverse-time depth migration method was used for the sub-salt structure accurate imaging and recovery.A technological series of integration of processing and interpretation for sub-salt structure was formed and applied in Pre-Caspian salt basin.
杨勤林, 王彦春, 张静, 刘文卿, 王震. 滨里海盆地盐下构造处理解释一体化研究[J]. 物探与化探, 2013, 37(2): 323-327.
YANG Qin-lin, WANG Yan-chun, ZHANG Jing, LIU Wen-qing, WANG Zhen. THE INTEGRATATION FOR PROCESSING AND INTERPRETATION OF SUB-SALT STRUCTURE IN PRE-CASPIAN BASIN. Geophysical and Geochemical Exploration, 2013, 37(2): 323-327.
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