依据地震、钻井资料，对塔里木盆地东北部三叠纪和侏罗纪沉积环境、相带展布、沉积演化、生储盖组合、构造活动性质及其与油气的关系进行了深入研究。结果表明，早中生代本区在断坳构造背景、高低相间的地形特征和温暖潮湿的气候条件下，形成了以长源三角洲、河流、湖沼、滨湖沼泽为特色的沉积相类型，具有湖盆小、水体浅、连通差、湖期短和多沉积中心等特点，缺少持续下沉和大量油气形成的沉积环境。作者从沉积相研究的角度认为，该区虽然见到油气显示，但不具备大中型油气田形成的沉积条件，只能形成小型油气藏 Based on the data of the earthquakes and drilling, the sedimentary environment, facies belt distribution, sedimentary evolution, reservoir-cap assemblage, tectonic activities and their relationship with hydrocarbon in the Triassic and Jurassic in the northeastern Tarim Basin were studied in depth. The results show that in the area of ​​the Early Mesozoic, the sedimentary facies characterized by Chang-delta, rivers, lakes and lakeshore swamps are formed in the tectonic setting of the depression, topographic features with high and low phases and warm and humid climatic conditions. Small, shallow water bodies, poor connectivity, short lake and multiple sedimentary centers, lack of sedimentary environment with continuous sinking and large amount of oil and gas formation. From the perspective of sedimentary facies study, the authors believe that although the area has seen oil and gas displays, it does not possess the depositional conditions for the formation of large and medium-sized oil and gas fields and can only form small-scale oil and gas reservoirs