天山南北复杂构造成像技术进展及应用效果

doi:10.7657/XJPG20200114

新疆石油地质 ›› 2020, Vol. 41 ›› Issue (1): 114-119.doi: 10.7657/XJPG20200114

天山南北复杂构造成像技术进展及应用效果

黄丽娟, 罗文山, 方勇, 董玉文, 吴新星, 李光鹏

中国石油集团东方地球物理公司研究院,河北涿州 072750

收稿日期:2019-10-29 修回日期:2019-11-27 出版日期:2020-02-01 发布日期:2020-03-31
作者简介:黄丽娟（1986-），女，江苏泰州人，工程师，地震资料处理，（Tel）18631762912（E-mail）huanglijuan01@cnpc.com.cn
基金资助:
国家科技重大专项(2017ZX05018-003);中国石油科技重大专项(2017E-0411)

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

HUANG Lijuan, LUO Wenshan, FANG Yong, DONG Yuwen, WU Xinxing, LI Guangpeng

Research Institute of Geology, BGP, CNPC, Zhuozhou, Hebei 072750, China

Received:2019-10-29 Revised:2019-11-27 Online:2020-02-01 Published:2020-03-31

摘要/Abstract

摘要：

由于天山南北前陆冲断带复杂构造具有地表及地下双复杂特性,获得地下准确成像困难,采用“真”地表TTI叠前深度偏移速度建模及成像技术序列能够较好地解决该问题。目前形成的“真”地表TTI叠前深度偏移速度建模及成像技术序列,主要包含适应叠前深度偏移的配套静校正技术、叠前体去噪技术、TTI各向异性速度建模与深度偏移技术等,将静校正、去噪与速度建模有机结合,这种全层系速度建模思路为叠前深度偏移提供了准确的速度模型,改善了复杂构造成像品质,提高了复杂构造成像的精度,钻井吻合率逐年上升,有力支撑了天山南北前陆冲断带的井位部署与油气勘探。

关键词: 天山, 前陆冲断带, 复杂构造, 低信噪比, 叠前深度偏移, 速度建模, 成像技术

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

中图分类号:

P631.443

黄丽娟, 罗文山, 方勇, 董玉文, 吴新星, 李光鹏. 天山南北复杂构造成像技术进展及应用效果[J]. 新疆石油地质, 2020, 41(1): 114-119.

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.

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天山南北复杂构造成像技术进展及应用效果

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

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