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运用高精度层序地层学的理论,系统地划分和对比泌阳凹陷上白垩统至古近系不同级别的层序地层单元,建立了凹陷内各级层序地层单元的对比框架,指出凹陷北部斜坡带为高位进积三角洲复杂断块群油气藏,北部斜坡枢纽带内带为低位扇断层—岩性油气藏、深凹区湖扩展期和高位期为滑塌浊积体及湖底扇透镜体圈闭,南部陡坡带为岩性油气藏发育区。以此为指导,针对凹陷北部斜坡、深凹区、南部陡坡等3个构造带发育不同类型圈闭的特点,开展了圈闭的地震识别和预测技术研究,发现了一批复杂油气藏,钻探后取得了较好的效果。
Using the theory of high-precision sequence stratigraphy, we systematically divide and compare the sequence stratigraphic units from the Upper Cretaceous to the Paleogene in the Biyang depression, and establish the comparison framework of the sequence stratigraphic units at various levels in the depression, pointing out that the northern part of the depression The slope zone is a complex of high pluvial delta fault block reservoirs, and the northern slope hub belt is a low-fan fault-lithologic reservoir. In the deep depression zone, the lake expansion phase and the high stage are slump turbidite bodies and sublacustrine fan bodies Traps, southern steep slope lithologic reservoir development zone. Taking this as a guideline, aiming at the characteristics of different types of traps developed in three tectonic belts in northern depression, deep depression and southern steep sag, the authors carried out a study on the technology of identifying and predicting the traps, and discovered a number of complex reservoirs and drilling After achieved good results.