Availability Analysis of Oil Pool Forming for Marine Source Rock in Ordos Basin
详细信息
- 责任者：Wang Chuangang (Exploration and Production Research Institute ; SINOPEC ; Beijing 100083 ; China)
- 刊名：Earth Science Frontiers
- 出版年：2012
- 卷期：19(1)
- 关键词：烃源岩 ; source rocks ; 鄂尔多斯盆地 ; Ordos Basin
- 页码：p.253-263
- 图表：illus., 5 tables, 29 refs.
- 分类号：1003
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
The recognition of marine source rock validity is important to Lower Palaeozoic exploration in Ordos Basin.Carbonatite of lower Ordovician series is not the real source rock because of its congenital quality including low TOC,poor kerogen type,and little hydrocarbon generation potency.On the contrary,the platform slope facies that formed middle Ordovician Pingliang series is a set of fine marine source rock.Pingliang series source rock includes 80to 200meters mud shale and marlstone,which distributed in a large area around western and southern margin of Ordos Basin.With typeⅠkerogen and high organic content(>0.2%),Pingliang source rock mainly belongs to above average rank,which attained high to post mature level and must have had a relatively high extent of hydrocarbon generation and expulsion history.Pyrolysis simulating experiment suggested that there have been 0.432billion tons of hydrocarbon resource produced by Pingliang source rock in history.A perfect prospect should be expected.