塔里木盆地北部地层岩石力学特征及地质学意义  

Rock mechanics characteristics in northern Tarim basin and its geologic significance

作　　者：周新桂[1] 陈永峤[1] 孙宝珊[2] 徐宏节[3] 操成杰[1] 段铁军 佘晓宇 

机构地区：[1]中国地质大学 [2]中国地质科学院地质力学研究所 [3]中国石化新星石油公司勘探研究院

出　　处：《石油勘探与开发》2002年第5期8-12,共5页Petroleum Exploration and Development

基　　金："九五"国家攻关项目"塔里木盆地构造形变特征及控油作用研究"(96 111 0 2 0 3 0 1)

摘　　要：系统采集塔里木盆地库车坳陷、柯坪隆起、巴楚隆起等露头区岩样和雅克拉地区井下岩心 ,样品涉及三大岩类 (变质岩、岩浆岩、沉积岩 )、3 3个层位 (Pt—N2 k)、15种岩性 ,测试和统计了 2 5 1组岩石力学参数 (弹性模量 ,泊松比 ,抗压强度 ) ,建立了塔里木盆地综合地层岩石力学剖面 ,为研究盆地变形特征、变形规律提供了实验地质依据。分析塔里木盆地组合地层岩石力学特性、变形习性及主要影响因素 ,结合前人研究成果 ,提出塔里木盆地发育 5个主要滑脱层系 ,完善了塔里木盆地滑脱层系和构造变形层的划分。The cores collected from outcrops of Kuqa depression, Keping uplift and Bachu uplift in Tarim basin involve three main types of rock (i.e. metamorphic rock, igneous rock and sedimentary rock), thirty three horizons (Pt-N 2k) and fifteen kinds of lithology. The rock mechanic factors (modulus of elasticity, Poisson's ratio and compressive strength) of 215 sets of samples were tested and analyzed. The rock mechanic features, deformation behavior and their major influential factors were studied; and a comprehensive profile of rock mechanics in Tarim basin was established. Combining with previous studies, five major detachment layer systems were proposed, improving the divisions of detachment layer systems and tectonized layers and providing solid experimental evidence for studying deformation behavior of a basin.

关 键 词：塔里木盆地北部地层 岩石力学特征 地质学意义 实验研究 影响因素 滑脱层划分 变形层 油气地质 

分 类 号：P618.130.2[天文地球—矿床学] TE12[天文地球—地质学]