CAJ | 학술논문

在砂岩储层中进行构造裂缝发育规律的研究，对储层预测具有一定的现实意义。文中以库车坳陷东部地区砂岩中发育的断层转折褶皱和断层传播褶皱为研究对象，统计分析构造裂缝密度大小与断层距离的关系，探讨断层相关褶皱对裂缝发育程度的规律性认识。分析结果发现：在断层相关褶皱中，构造裂缝的密度随着距断层距离的增大而减小，二者存在明显的指数关系；并且在靠近断层和转折端的附近，存在一个构造裂缝密度骤减的范围，定义这个范围为“断层-转折端共控构造裂缝带”。断层相关褶皱带内“断层-转折端共控构造裂缝带”的发现与认识，对构造裂缝的定量化研究以及油藏数值模拟等都具有一定的指导意义。
재사암저층중진행구조렬봉발육규률적연구，대저층예측구유일정적현실의의。문중이고차요함동부지구사암중발육적단층전절습추화단층전파습추위연구대상，통계분석구조렬봉밀도대소여단층거리적관계，탐토단층상관습추대렬봉발육정도적규률성인식。분석결과발현：재단층상관습추중，구조렬봉적밀도수착거단층거리적증대이감소，이자존재명현적지수관계；병차재고근단층화전절단적부근，존재일개구조렬봉밀도취감적범위，정의저개범위위“단층-전절단공공구조렬봉대”。단층상관습추대내“단층-전절단공공구조렬봉대”적발현여인식，대구조렬봉적정양화연구이급유장수치모의등도구유일정적지도의의。
The studies on the development laws of tectonic fractures in sandstones are significant to the reservoir prediction. In order to better know the development and distribution of tectonic fractures around the fault related folds, this paper studied the relationship between tectonic fracture density and its distance to the fault with the examples of a fault bend fold and a fault propagation fold developed in the Jurassic sandstones of the Kuqa Depression. The results show that (1) an exponential relationship between tectonic fracture density and its distance to the fault is established, and the tectonic fracture density decreases as the distance from the fault increases;(2) there is a damaging region where the tectonic fracture density decreases sharply, and this region is a fracture zone controlled by the fault related fold, which is named as“fault and hinge controlling tectonic fracture zone”. The recognition of this tectonic fracture zone is of great importance to the quantitative study of tectonic fractures and numerical simulation of reservoir.