Comparison of Chang 7 Member of Yanchang Formation in Ordos Basin with Bakken Formation in Williston Basin and Its Significance
详细信息
- 责任者：Zhang Nini (State Key Laboratory of Petroleum Resources and Prospecting ; China University of Petroleum ; Beijing 102249 ; China) ; Liu Luofu
- 刊名：Geoscience
- 出版年：2013
- 卷期：27(5)
- 关键词：非常规天然气 ; unconventional gas ; 鄂尔多斯盆地 ; Ordos Basin ; 美国 ; United States
- 页码：p.1120-1130
- 图表：9 illus., 2 tables, 27 refs.
- 分类号：1003
- issnNo：ISSN1000-8527
- isbnNo：CN11-2035/P
摘要
Since the tight oil of Bakken Formation in north America developed successfully in industry,the tight oil has become a hot spot in the exploration and development of unconventional oil and gas resources,and the Chang 7 Member of Yanchang Formation in Ordos Basin has already got a great breakthrough to some extent in this hot area.Based on geological background,lithofacies features,oil-generating conditions and reservoir characteristics,this paper compared the mechanism of petroleum accumulation and the rule of enrichment of the tight oil in Bakken Formation with that in the Chang 7 Member of Yanchang Formation.The results show that the two formations are quite similar in geological background,disposition of source and reservoir rock,characteristics of source rock and reservoir.The only difference is that the average thickness of the shale in Yanchang Formation is thicker than that in the Bakken Formation.The comparison results indicate that the Yanchang Formation in Ordos Basin has a good exploration prospect.
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