辽河盆地冷家地区断裂特征及其控制作用

Characteristics and Oil-gas ControlEffect of the Fracturesin Lengjia Area, Liaohe Basin

冷家地区断裂的复杂性造成了油气水分布的多样性和油气水系统的复杂性．弄清断裂发育特征及其控制作用是认识本区油气分布规律的关键．从分析区域构造格架出发，结合区域构造演化史，根据断裂分布、形成机理、活动特征、控制作用，总结出八种成因类型的断裂，建立了七种断裂发育模式，识别出五个级别的断裂，并对研究区构造单元进行划分．为分析断裂对油气的控制作用提供了依据．

The com plexity ofthe fractures leadsto the diversity ofthe oil, gas and w ater distribution and the com plexity ofthe oil, gas and w atersystem in this area. Know ing the developing features ofthe fractures and theiroiland gascontroleffectisa key to recognizing theoiland gasdistribution. Thefracturesare classified into 8 developm ent m odes and 5 grades according to the analysis of regionalstructural fram ew ork, regional structuralevolution history and the distribution law , form ing m echanism , m oving featureand oil-gascontrolef- fectofthe fractures. Thearea isdivided into structuralelem ents. The resultsin thispapercan providebasisfor the analysis ofoiland gas controleffectofthe fractures.