论文详情

测井资料与岩石力学参数相关性及其在井壁力学稳定性计算中的应用

石油钻采工艺

1999年 21卷第1期

阅读：68

Title

CORRELATION BETWEEN LOGGING DATA AND ROCK MECHANI- CAL PARAMETERS AND ITS APPLICATION IN CALCULATION OF SIDEWALL MECHANICAL STABILITY

作者

李士斌艾池刘立军

Authors

Li Shibin Ai Chi Lin Lijun

单位

大庆石油学院华北石油管理局

摘要

应用大庆头台和茂兴地区5口井的测井资料,14块岩心的室内试验数据,找出了该区块不同岩性在相应围压下的静、动态岩石弹性参数的相关性,根据线弹性理论以及岩石的破坏准则建立了井壁稳定性条件,确定了井壁破裂和坍塌的3个临界压力剖面,结合孔隙压力确定了头台和茂兴地区的安全钻井液密度剖面。

Abstract

Using logging data from 5 wells in Toutai and Maoxing areas in Daqing and laboratory data obtained from 14 cores,the correlation of static and dynamic elastic parameters under corresponding confining pressures in various lithologies in these areas was found. Based on line elastic theory and rock break machenism,the sidewall stability condition was established. Three critical pressure profiles for sidewall breaking and sloughing were defined. Considering pore pressure, safety profiles of drilling fluid density in Toutai and Maoxing were further defined.

关键词：

测井数据; 岩石力学; 参数; 相关; 应力; 井壁稳定;

Keywords:

log data; rock mechanics; parameter; correlation; stress; sidewall stability;

基金项目

DOI

10.3969/j.issn.1000-7393.1999.01.010