Hydrocarbon Reservoir Forming Conditions within Metamorphic Buried Hills in Central Rise
详细信息
- 责任者：Wang Zhanzhong (Research Institute of Exploration and Development of Liaohe Oilfield Branch Company ; Panjin 124010 ; China)
- 刊名：Petroleum Geology & Oilfield Development in Daqing
- 出版年：2011
- 卷期：30(4)
- 关键词：潜山油气藏 ; buried-hill reservoir ; 成藏模式 ; pool-formed model ; 辽河坳陷 ; Liaohe Depression
- 页码：p.9-13
- 图表：4 illus., 2 tables, 17 refs.
- 分类号：1003
- issnNo：ISSN1000-3754
- isbnNo：CN23-1286/TQ
摘要
By focusing on the Archaeozoic metamorphic buried hill belt with low-degree prospecting in central rise of Liaohe Depression, the distribution characteristics of multileveled interior oil reservoirs in the hills are summarized, the oil reservoir forming conditions and main controlling factors of the hills are analyzed from the aspects of the lithologic identification of reservoirs and barriers, tectonic properties, source rocks of hydrocarbon, oil "window", sealing system and so on. And moreover, the reservoir forming model is established. The charging analyses re- suits show that, the development of fractures is jointly controlled by tectonic movements and dominant lithology. The alternate distribution of reservoirs and barriers is results from the existence of various lithologic combinations in metamorphic buried hills; and furthermore the lateral oil charging "window" is the key to the formation of interior reservoirs and its size determinates the vertical range of oil and gas pools.