Evolution of geomechanical and electro-hydrodynamic fields in deep well drilling in rocks

被引：14
|
作者：
Nazarova, L. A. [1 ,3 ]
Nazarov, L. A. [1 ,3 ]
Epov, M. I. [2 ,3 ]
El'tsov, I. N. [2 ,3 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Chinakal Inst Min, Novosibirsk 630091, Russia
[2] Russian Acad Sci, Siberian Branch, Trofimuk Inst Petr Geol & Geophys, Novosibirsk 630090, Russia
[3] Novosibirsk State Univ, Novosibirsk 630090, Russia
来源：
JOURNAL OF MINING SCIENCE | 2013年 / 49卷 / 05期
基金：
俄罗斯基础研究基金会;
关键词：
Rock mass; multi-phase filtration; borehole; stress state; failure; invaded zone; permeability; reservoir; resistivity;
D O I：
10.1134/S1062739149050031
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
The authors have developed and numerically implemented 3D model of evolution of geomechanical and hydrodynamic fields during deep well drilling. The modeling exercises showed low-permeable zones of irreversible deformations that appear under definitely interrelated rock strength properties, drilling mud pressure and in situ horizontal stresses in the borehole environment. These low-permeable irreversible-deformation zones give rise to angular anisotropy of distribution of water content and drilling mud resistivity in the invaded zone, which greatly affects geophysical logging data and must be taken into account in the logging data inversion.
引用
收藏
页码：704 / 714
页数：11
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