The Stress Distribution and Calculation of the Different Zone of Wellbore Surrounding rock based on the Damaged Theory

被引：0

作者：

Zhao, Wanchun ^{[1
]}

Sun, Chengyan ^{[2
]}

Wang, Tingting ^{[3
]}

Liu, Yu ^{[3
]}

Yang, Caiping ^{[3
]}

机构：

[1] Northeast Petr Univ, Educ Minist, Key Lab Enhanced Oil & Gas Recovery, Daqing 163318, Heilongjiang, Peoples R China

[2] Daqing Oil Field Corp Ltd, Oil Recovery Plant 9, Daqing 163318, Heilongjiang, Peoples R China

[3] Northeast Petr Univ, Daqing 163318, Heilongjiang, Peoples R China

来源：

PROGRESS IN CIVIL ENGINEERING, PTS 1-4 | 2012年 / 170-173卷

基金：

中国国家自然科学基金;

关键词：

Damage Model; Double-media; Pore Pressure; Hole Stabilization;

D O I：

10.4028/www.scientific.net/AMM.170-173.1052

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In order to describe the stability of borehole face and the theory of hydraulic fracture fissure stretch in real, the stress field of adjacent rock in the hole should be constituted exactly The article is based on the damnification dynamics theory, meanwhile, considered the rock is fracture-pore dual medium and the damnification characteristic of the rock in hole. Adjacent formation is sectioned three areas: damage-area, damnification-area, elasticity-area. And we have calculated the ambient stress distribution of one oil-well The results show that the destructive radius of the minimum in-situ stress direction is 1.247m, the damage radius is 8.082m, the destructive radius of the maximum in-situ stress direction is 0.998m, and the damage radius is 6.5865m.

引用

页码：1052 / +

页数：2