Activity analysis of main faults in Qianquan area, Banqiao Sag

LI Chuanliang; TU Xingwan

doi:10.3969/j.issn.1673-8926.2008.01.013

Lithologic Reservoirs >

2008 , Vol. 20 >Issue 1: 75 - 82

DOI: https://doi.org/10.3969/j.issn.1673-8926.2008.01.013

Activity analysis of main faults in Qianquan area, Banqiao Sag

LI Chuanliang ,
TU Xingwan

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Faculty of Resources, China University of Geosciences, Wuhan 430074, China

Online published: 2008-03-15

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Abstract

Based on the interpretation to Es₃, Es₂, lower Es₁, middle Es₁, upper Es₁ and the bottom of Ed in Qianquan area, Banqiao Sag, the plane distribution of the faults is analyzed. The growth index, activity rate and paleo fall of fault are applied to study the fault activity. The result shows that there developed two vertical normal faults towards NE and NW respectively in Qianquan area, among which Cangdong fault is first order fault, Dazhangtuo fault and G39 fault are second order fault, the others are third order fault, with most of the dip angles being from 55 degree to 70 degree. These three indexes indicate that most of the main faults in the study area experienced two evolution stages, and each was fromweak to strong and became weak again.

Key words： reservoir; rock; stress sensitivity; primary deformation; structural deformation

Cite this article

LI Chuanliang , TU Xingwan . Activity analysis of main faults in Qianquan area, Banqiao Sag[J]. Lithologic Reservoirs, 2008 , 20(1) : 75 -82 . DOI: 10.3969/j.issn.1673-8926.2008.01.013

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