地质科学2012,Vol.47Issue(4):1176-1187,12.
海拉尔盆地贝尔凹陷基岩断层相关裂缝发育特征及模拟实验研究
Study on fault associated crack development characteristics and simulation experiment about the buried hill reservoir in the Beier Sag, Hailer Basin
摘要
Abstract
The discovery of the buried hill reservoir in the bedrock of the Hailar Basin has broadened the exploration areas of the peripheral oil fields of Daqing oil field. The crack is one of the main reservoir space of the buried hill reservoir in the bedrock of the Beier Sag. To find out the development characteristics and distribution rules of the buried hill cracks, based on a lot of the core observation data, the author studied the development characteristics of the crack such as the types, density, width as well as filling period and development characteristics of the bedrock faults. It is concluded that there were three types faults which were early extensional faults, early extensional middle tensional-shear long-term active faults and early extensional middle tensional-shear late inverse long-term active faults. Their geometry characteristics, distance of the fault and the imaging logging data indicate that the crack is mainly formed in the process of the fracture structure, and the multi stages of fault activity of the bedrock caused the complexity of fracture development. In order to validate the control function of the crack fault,the author carried on the physical simulation experiment, and the experimental results show that the associated cracks mainly develop on both sides of the fault. The farther fault plane distance is, the smaller crack density is. The factors such as the thickness of strata, broken shift rate, lithological changes and the distance from fault plane all have certain control function on the fracture development.关键词
潜山/裂缝/断层/模拟实验/贝尔凹陷Key words
Buried hill, Fracture, Fault, Simulation experiment, Beier Sag分类
天文与地球科学引用本文复制引用
张云峰,刘佩佩,齐庆鹏,孙永河..海拉尔盆地贝尔凹陷基岩断层相关裂缝发育特征及模拟实验研究[J].地质科学,2012,47(4):1176-1187,12.基金项目
国家重点基础研究发展计划项目(编号:2012CB723102)和国家科技重大专项(编号:2011ZX05008-001-52)资助. (编号:2012CB723102)