塔里木盆地阿瓦提凹陷主力烃源岩探讨及油源对比
发布时间：2018-07-14 16:46
【摘要】：通过区域构造、主要烃源岩分布及地球化学特征等研究,明确了阿瓦提凹陷发育的主力烃源岩。结果表明:阿瓦提凹陷发育有中—下寒武统、中—上奥陶统和石炭系—二叠系等3套烃源岩;中—下寒武统烃源岩在加里东晚期进入生油门限,处于低熟阶段,海西早期处于成熟高峰阶段,海西晚期处于高峰—高熟阶段,燕山期处于高熟—过熟峰期,喜马拉雅晚期处于过熟阶段;中—上奥陶统烃源岩主要分布于阿瓦提凹陷的西北部,加里东晚期—海西早期处于未成熟阶段,海西晚期处于低熟—成熟阶段,燕山期处于成熟高峰期,喜马拉雅晚期处于高熟—过熟阶段。
[Abstract]:The main source rocks developed in Awati sag are identified through the study of regional structure, distribution and geochemical characteristics of main source rocks. The results show that there are three sets of hydrocarbon source rocks in the Awati sag, such as the Middle Lower Cambrian, Middle Upper Ordovician and Carboniferous Permian, and the middle and Lower Cambrian source rocks entered the oil generation threshold in the late Caledonian, and are in the low mature stage. In the early Hercynian stage, the late Hercynian period is in the peak to high maturity stage, the Yanshanian period is in the high ripeness to overmature peak stage, and the late Himalayan period is in the overmature stage, and the source rocks of the Middle and Upper Ordovician are mainly distributed in the northwest of Awati Sag. The late Caledonian to early Hercynian is in the immature stage, the late Hercynian is in the low maturation stage, the Yanshanian stage is in the mature peak period, and the late Himalayan stage is in the high ripeness to overmaturity stage.
【作者单位】： 中国石油塔里木油田分公司;中国石油杭州地质研究院;
【基金】：国家重点基础研究发展计划“973”项目“中国西部叠合盆地油气富集规律与勘探潜力预测”(2011CB201106)
【分类号】：P618.13
，
本文编号：2122277
[Abstract]:The main source rocks developed in Awati sag are identified through the study of regional structure, distribution and geochemical characteristics of main source rocks. The results show that there are three sets of hydrocarbon source rocks in the Awati sag, such as the Middle Lower Cambrian, Middle Upper Ordovician and Carboniferous Permian, and the middle and Lower Cambrian source rocks entered the oil generation threshold in the late Caledonian, and are in the low mature stage. In the early Hercynian stage, the late Hercynian period is in the peak to high maturity stage, the Yanshanian period is in the high ripeness to overmature peak stage, and the late Himalayan period is in the overmature stage, and the source rocks of the Middle and Upper Ordovician are mainly distributed in the northwest of Awati Sag. The late Caledonian to early Hercynian is in the immature stage, the late Hercynian is in the low maturation stage, the Yanshanian stage is in the mature peak period, and the late Himalayan stage is in the high ripeness to overmaturity stage.
【作者单位】： 中国石油塔里木油田分公司;中国石油杭州地质研究院;
【基金】：国家重点基础研究发展计划“973”项目“中国西部叠合盆地油气富集规律与勘探潜力预测”(2011CB201106)
【分类号】：P618.13
，
本文编号：2122277
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