陕北黄土高原油区构造解译

STRUCTURAL INTERPRETATION OF OIL-GAS FIELD IN THE LOESS PLATEAU OF THE NORTH PART OF SHAANXI

本文介绍了陕北黄土高原油区TM图象的隐伏断裂和环状构造解译标志,建立了该区延安一带的构造格架,并分析了构造特征,提出了隐伏断裂控制环状构造的观点。最后,通过油气分布同新建构造格架的对比研究,认为环状构造集中区或隐伏断裂交叉部位是油气藏储存的良好构造部位。

This paper introduces the interpretation keys of blind fractures and circular structures by means of the Tm remote sensing images in the loess plateau of the North part of Shaanxi , and establishes the structural framework of the Yanan area. The structural features are also analysed accordingly. It is considered that the circular structures are controlled by the blind fractures. Finally, a study is carried out to correlate the oil -gas distribution with the newly established structural framework. The results show that the potential oil re-serviors are located in the places where the circular structures concentrate or the blind fractures intersect.