Strike-slip fault displacement calculation based on structure physical simulation

被引：0
|
作者：
Wu K. [1 ]
He J. [1 ]
Zhang Z. [1 ]
Zhang J. [1 ]
Zhang J. [1 ]
机构：
[1] Tianjin Branch, CNOOC, Tianjin
来源：
Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting | 2019年 / 54卷 / 04期
关键词：
Broom fault; Goose fault; Liaozhong Sag; Strike-slip displacement; Strike-slip fault; Structural physical simulation;
D O I：
10.13810/j.cnki.issn.1000-7210.2019.04.021
中图分类号：
P631.4 [地震勘探]; P315 [地震学];
学科分类号：
摘要：
This paper demonstrates an example of strike-slip fault displacement calculation based on structure physical simulation. Using drilling data and seismic interpretation, a structural physical simulation of Liaozhong Sag is completed based on local faults and fault system characteristics. Three groups of fault patterns are involved, i. e., two main parallel strike-slip faults, two main non-parallel strike-slip faults, and a single main strike-slip fault. The evolution and formation mechanism of the strike-slip faults are discussed and main strike-slip fault displacement is calculated. The following understandins are obtained: ①Several geese and broom fault systems were developed in Liaozhong at the end of the LZ1 fault and upper layers of strike-slip faults, which were mainly controlled by the Oligocene right-lateral strike-slipping; ②Geese and broom fault systems, and plane through fractures were formed with the increase of slip, geese and broom fault systems can be used as references for deep strike-slip fault interpretation; ③Based on quantitative statistical analysis, the ratio of extension to slip is about 3:2, the strongest strike-slipping of three main faults was in the Dongying Period, and the largest slip occurred at LZ1. © 2019, Editorial Department OIL GEOPHYSICAL PROSPECTING. All right reserved.
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页码：891 / 900
页数：9
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