Research on crustal stress distribution based on acoustic logging data ——Taking North Region of Renqiu Ordovician Buried Hill of Raoyang Depression for example
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Research on crustal stress distribution based on acoustic logging data ——Taking North Region of Renqiu Ordovician Buried Hill of Raoyang Depression for example
Vol. 32, Issue 9, (2011)
作者机构:
1. 中国石油大学(华东)储运与建筑工程学院,山东,青岛,266555
2. 中国石油大学(华东)地球科学与技术学院,山东,青岛,266555
3. 中国石油集团工程设计有限责任公司 北京分公司,北京,100085
作者简介:
基金信息:
DOI:
CLC:P554
Online First:13 September 2011,
Published:2011
稿件说明:
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LI Jing, ZHA Ming, LIU Zhen. Research on crustal stress distribution based on acoustic logging data ——Taking North Region of Renqiu Ordovician Buried Hill of Raoyang Depression for example[J]. 2011, 32(9).
DOI:
LI Jing, ZHA Ming, LIU Zhen. Research on crustal stress distribution based on acoustic logging data ——Taking North Region of Renqiu Ordovician Buried Hill of Raoyang Depression for example[J]. 2011, 32(9).DOI:
Research on crustal stress distribution based on acoustic logging data ——Taking North Region of Renqiu Ordovician Buried Hill of Raoyang Depression for example
Taking the North Region of Renqiu Ordovician Buried Hill of Raoyang Depression for example
the rock mechanical parameter is defined according to acoustic logging data; the regional boundary loads as unknown condition
the crustal stress of the key well points are taken as constraint conditions
the regional boundary stress is obtained. The geological model
calculation model and mechanical model are established based on it. The distribution rule and characteristic of regional crustal stress are obtained by using simulation in study area. The result shows that the value of crustal stress by numerical simulations is consistent with that of actual measurements. The maximum horizontal principal stress focuses between -61 MPa and -118 MPa in study area
the direction of maximum horizontal principal stress in middle-north part is in west-north
and in south part is in north-south. The minimum horizontal principal stress focuses between -31 MPa and -91 MPa
the direction of minimal horizontal principal stress in north part is in east-north
and in south part is in west-east. Besides
the main crustal stress in the fault zone is smaller than that in continuous strata
the adjacency of fault zone is gradient zone of stresses variation
and the fault zone has an obvious effect on the distribution of horizontal principal stress.