伸展断层相关褶皱恢复方法及应用  

Recovery methods and application of extensional fault-related folding

作　　者：任启强 戴俊生[1] 徐珂 商琳[2] 王硕 刘超[1] 

机构地区：[1]中国石油大学(华东)地球科学与技术学院,山东青岛266580 [2]中国石油冀东油田研究院,河北唐山063004

出　　处：《断块油气田》2015年第5期574-578,共5页Fault-Block Oil & Gas Field

基　　金：国家科技重大专项专题"深煤层地应力预测及高渗富集规律研究"(2011ZX05042-001-001)

摘　　要：近年来,断层相关褶皱逐渐引起学者们的重视,众多学者对其几何学和运动学的模型进行了大量的研究。文中在研究断层相关褶皱形成原理的基础上,系统分析了不同类型断层相关褶皱的恢复手段,特别是对伸展作用断层的相关褶皱进行恢复,并应用于具体实例中。文中重点采用斜剪切方法对构造成因比较复杂的南堡凹陷3号构造进行三维构造恢复,模型从上到下主要包括Ed1,Ed2,Ed3,Es1和Es2等5套地层,对比模型恢复前后的差异,判断出南堡3号构造地区经历的构造环境。恢复方法在南堡凹陷3号构造的应用,表明斜剪切、恢复到基准面等恢复手段对伸展作用下的断层相关褶皱具有可行性,斜剪切是其中最为主要的恢复手段。In recent years, researchers attach more importance to the fault-related folding, and have done a lot of research on the geometry and kinematics model. This paper tried to analyze the restoration methods for different types of fault-related folding,especially for the extensional fault-related folding on the basis of the formation principle, and apply the methods to concrete examples. By using inclined shear method to restore the complicated No.3 structure in Nanpu Sag, a 3D geological model which contains five sets of stratum（from top to bottom： Ed1, Ed2, Ed3, Es1, Es2） is established. Compared the model before with after restoration, the tectonic environment is judged during the evolution of No.3 tectonic location. The application shows that inclined shear and restore to a datum are the main methods for extensional fault-related folding, and the inclined shear is the most common method.

关 键 词：伸展断层相关褶皱 斜剪切 南堡凹陷 三维地质模型 

分 类 号：TE122[石油与天然气工程—油气勘探]