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运用岩心、录井、测井资料,通过岩心相——单井相——剖面相——平面相分析,综合油源对比和对已知探井的油气显示情况及试油结果的分析,总结了他拉哈-齐家地区葡萄花油层的烃源岩特征、沉积特征、储层特征、盖层特征及油气运移聚集特征。葡萄花油层沉积以三角洲湖泊体系为特征,发育有三角洲和湖泊相,研究区内葡萄花油层成藏受断裂、构造、砂体组合和坡折带等控制,油气从负向构造向正向构造运移,从凹陷轴向两侧运移。研究结果为油田开发和生产提供了可靠的理论依据。
Through the core, logging and well logging data, through core facies-single well facies-section facies-plane facies analysis, the authors have analyzed the oil source correlation and oil-gas results and the oil test results of known exploratory wells by summarizing Source Rock Characteristics, Sedimentary Characteristics, Reservoir Characteristics, Cover Characteristics and Hydrocarbon Accumulation and Accumulation Features of Putaohua Reservoir in Tuha-Qiajia Area, Hela. The Putaohua oil layer is characterized by the deltaic lake system and develops delta and lacustrine facies. The accumulation of Putaohua reservoir in the study area is controlled by faults, structures, sand body assemblages and slope break zones. The oil and gas flow from negative to positive tectonics Transport, transport from both sides of the depression axial. The results provide a reliable theoretical basis for oilfield development and production.