Abstract：The Lower Permian of uplifts in east merging of littoral Caspian Sea basin is a set of giant thickness of salt beds and multiple salt domes with significant thickness developed locally, in which the thickness is from 200m to 3500m. The significant difference in velocities between salt domes and surrounding beds made the reflection horizons at subsalt Lower Carboniferous target pull-up. How to restore the subsalt structural feature correctly by studying seismic interpretation methods of subsalt structures becomes the key factor constraining exploration breakthrough, increasing reserves and productions in studied region. The paper summarized a set of methods suitable for fine interpretation in the salt-dome-developed areas and the regions having similar geologic feature after many years' studies of interpretation methods of subsalt structures, including velocity analysis technique, forward modeling and inversion technique and paleostructural restoration technique. These techniques have important meaning of restoring relatively true structural feature of subsalt beds and visible application effects.
代双河, 高军, 臧殿光, 刘文利. 滨里海盆地东缘巨厚盐岩区盐下构造的解释方法研究[J]. 石油地球物理勘探, 2006, 41(3): 303-307,322.
Dai Shuang-he, Gao Jun, Zang Dian-guang, Liu Wen-li. Interpretation method of subsalt structures in significant thickness of salt beds, east merging of littoral Caspian Sea basin. OGP, 2006, 41(3): 303-307,322.
