鄂尔多斯盆地吴起——志丹地区长10油层组油源及成藏分析  

Origin of Chang 10 Oil Reservoir in Wuqi-Zhidan Region of Ordos Basin

作　　者：赵举举 谭丽娟[1] ZHAO Juju;TAN Lijuan(China University of Petroleum,Qingdao 266555,Shangdong China)

机构地区：[1]中国石油大学(华东),山东青岛266555

出　　处：《河南科学》2018年第3期371-375,共5页Henan Science

基　　金：国家重大专项课题资助(CCL2013TJXSBS1881)

摘　　要：通过油源对比、油油对比的方法,对吴起—志丹地区延长组长10油层组的油源问题有了新的认识,吴起地区长10原油主要来自长7烃源岩;志丹地区长10原油来自长9烃源岩.最后结合油源对比结果、成藏地质特征,得出研究区东西部具有不同的成藏模式:西部吴起地区由长7烃源岩向下排烃跨层输导进入长10成藏;东部志丹地区为长9烃源岩向下排烃进入长10聚集成藏.Based on the comparison of oil source and oil and oil,a new understanding was made on the source of oil in the chang 10 oil group in the extension group of Wuqi-Zhidan area.The chang 10 crude oil from Wuqi area was mainly from Chang 7 source rock;chang 10 crude oil in zhidan area was from chang 9 source rock.Finally,combining with the results of oil source and the geological characteristics of reservoirs,it is concluded that the eastern and western regions of the study area have different reservoir entrapment patterns:the western Wuqi area is composed of chang 7 hydrocarbon source rocks,the eastern area for the chang 9 source rock down the hydrocarbon into the chang 10 accumulation into the reservoir.

关 键 词：鄂尔多斯盆地 长10油层组 油源对比 成藏特征 

分 类 号：TE122.2[石油与天然气工程—油气勘探]