岩土力学2011，Vol.32Issue(6)：1625-1630,6.
深部地层岩石力学性质测试与分析研究
Testing and analyzing rock mechanical characteristics for deep formation
摘要
Abstract
In order to solve the key technology of ultra-deep well drilling-improving cutting efficiency and rate of penetration in marine facies complex exploration area of south China it is required to collect outcrops of Northeast Sichuan area formation, test and analyze their rock mechanical characteristics at normal temperature and simulated downhole conditions with available apparatuses.The goal and meaning of the test and coUected samples were briefly introduced.The experimental scheme.testing apparatus.samples.the results and data statistical method were stated.According to statistical results, the method for analyzing rock mechanical characteristics of deep formation and related qualitative and quantitative results acquired were presented in detail.And the rock breaking mechanism of ultra-deep well drilling was qualitatively analyzed.Research shows that by testing and analysis: the mechanical properties of the rock directly related rock breaking.Under the action of temperature and pressure factors, the deep changes in mecharucal properties of rock result in rock broken of cut way to scrape more difficult in the deep strata of rock.This is the key factor of the ultra-deep drilling speed can not be greatly improved.Through this pilot study and analysis, access to a set of rocks mechanical properties under different environmental conditions.Changes in mechanical properties of the qualitative and quantitative conclusions will provide technical support for rock breaking mechanism, high-performance bit research and selection in deep and ultra deep drilling关键词
深部地层/超深井/破岩机制Key words
deep formation/ ultra-deep well drilling/ rock breaking mechanism分类
建筑与水利引用本文复制引用
周延军,耿应春,王贵宾,唐洪林,李祖奎..深部地层岩石力学性质测试与分析研究[J].岩土力学,2011,32(6):1625-1630,6.基金项目
国家863计划课题资助(No.20061023) （No.20061023）
国家重点基础研究发展规划(973)项目资助(No.2010CB226701) （973）
国家科技重大专项资助(No.2008ZX05005-006). （No.2008ZX05005-006）
