Progress and Application of Imaging Technology for Complex Structures in the Southern and Northern Tianshan Mountains

doi:10.7657/XJPG20200114

Abstract

Abstract:

It is very difficult to obtain the accurate images of the underground complex structures in the foreland thrust belts of the northern and southern Tianshan Mountains because the structures are very complicated both at the surface and underground, and the velocity modeling of TTI prestack depth migration and imaging technology can be used to solve the problem. At present, the velocity modeling of TTI prestack depth migration and imaging technology mainly include the static correction technology matched with prestack depth migration, prestack denoising technology and TTI anisotropic velocity modeling and depth migration technology, which can integrate static correction, denoising and velocity modeling technologies and provide an accurate velocity model for prestack depth migration. Finally, the imaging quality and precision of the complex structures are improved and the drilling consistency rises year by year, which proves that the technology can provide support to well allocation and petroleum exploration in the foreland thrust belts of the northern and southern Tianshan Mountains.

Key words: Tianshan Mountains, foreland thrust belt, complex structure, low signal-to-noise ratio, prestack depth migration, velocity modeling, imaging technology

CLC Number:

P631.443

HUANG Lijuan, LUO Wenshan, FANG Yong, DONG Yuwen, WU Xinxing, LI Guangpeng. Progress and Application of Imaging Technology for Complex Structures in the Southern and Northern Tianshan Mountains[J]. Xinjiang Petroleum Geology, 2020, 41(1): 114-119.

Figures/Tables 8

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