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济阳坳陷埕东地区油气资源丰富,断层与油气的运移和聚集密切相关,通过对研究区断层活动、烃源岩热演化及油气运移路径等的研究,探讨了该区断层输导与油气运移特征。结果表明,埕南断层是研究区唯一的油源断层,其活动性自西向东逐渐增强,停止活动时间逐渐变晚;渤南洼陷沙三段烃源岩为埕东地区主要供烃层系,与洼陷相比,洼陷东部热演化程度更高、供烃能力更强。埕南断层活动性与烃源岩生烃史的匹配关系控制其输导油气的能力,二者匹配性越好,断层输导能力越强、输导量越大,油气运移距离就越长。油气具有从洼陷区到埕南断阶区再到埕东凸起运移的趋势,并沿埕南断层存在埕古12井、埕古13井、埕92井等多个注入点,且注入点一般都分布在构造脊上,断层和构造脊共同控制了油气的优势运移路径和指向。
The Qiongdong area in the Jiyang Depression is rich in oil and gas resources, and the faults are closely related to the migration and accumulation of oil and gas. Through the study of the fault activity, the thermal evolution of hydrocarbon source rocks and the hydrocarbon migration path in the study area, the fault conductivity And hydrocarbon migration characteristics. The results show that the Junan fault is the only oil source fault in the study area, its activity gradually increases from west to east, and the stop time gradually becomes late. The source rocks of Es3 in Bonan Sag are the main hydrocarbon-bearing strata in the eastern Qindong Compared with the subsaturated, the eastern part of the depression has a higher degree of thermal evolution and more hydrocarbon supply. Matching relationship between the fault activity of Taonan and the hydrocarbon generation history of hydrocarbon source rocks controls their ability to transport hydrocarbons. The better the two are, the stronger the fault conductivity is, and the larger the volume of transport is, the longer the migration distance is. There is a tendency that the oil and gas migrate from the subsidence area to the Taonan fault zone and then to the Xudong projectile. There are multiple injection points along the Taonan fault such as the Yugu 12, Yugu 13 and Xun 92 wells, and the injection points Generally distributed in the tectonic ridges, fault and tectonic ridges jointly control the dominant migration path and direction of oil and gas.