遥感方法对黄土地区隐伏控油构造的评价

本文提出了判断黄土地区隐伏断裂的标志,并将研究区的隐伏断裂划分为基岩断裂、新构造或继承性构造、断裂破碎带或岩脉以及深层构造4种类型。在此基础上提出了与传统观点不同的区域构造格局及三级构造单元划分。然后,根据油气藏的类型、圈闭原理及研究区的构造背景,提出了隔水性构造可以圈闭油藏、为控油构造的结论。最后,以3条隐伏断裂为例,说明了隔水性和漏水性构造的遥感信息特征及其形成机制,并在研究区内圈出了3个油田预测区。

EVALUATION OF BURIED OIL-CONTROLLING STRUCTURE IN LOESS REGION BY REMOTE SENSING METHOD

This paper presents the marks for recognizing the buried faults in loess region, and the four types of buried faults have been classified: 1. bed rock faults 2. new structure or inheritance structure 3. dyke-rock or dyke swarm 4. deep structure. Based on above classification, the regional structure pattern and the third grade structure unit, which are different from the traditional concepts, have been proposed. According to the types of oil-gas reserve theory and the structural background in study region, it is suggested that the water-resisting structure entrap oil-gas reserve as oil-controlling structure. Then the three buried faults are taken as examples to explain the features of R. S. information of water-resisting structure or water permeability structure and their forming mechanism. At last, the three oilfields have been predicted in the work region.