STABILITY OF DRILL STRINGS IN CONTROLLED DIRECTIONAL WELLS

被引：9

作者：

Gulyaev, V. I. ^{[1
]}

Gorbunovich, I. V. ^{[1
]}

机构：

[1] Natl Transport Univ, Kiev, Ukraine

来源：

STRENGTH OF MATERIALS | 2008年 / 40卷 / 06期

关键词：

directional wells; drill strings; friction forces; loss of stability; helical modes;

D O I：

10.1007/s11223-008-9083-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We formulate the problem of theoretical simulation of the bifurcation buckling of drill strings in deep directional and horizontal oil and gas wells, and propose the procedure for its solution. The analysis is made of the critical states in drill strings for various values of the well inclination, axial velocities of drill string motion and rotation. The buckling modes of the bifurcation drilling are constructed.

引用

页码：648 / 655

页数：8

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