Relationship between Fault Activity Period and Neogene Oil-Gas Accumulation in Raoyang Sag
详细信息
- 责任者：Lu Hao (School of Geo-Resources and Information ; China University of Petroleum ; Dongying 257061 ; China) ; Jiang Youlu
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2011
- 卷期：18(5)
- 关键词：油气藏 ; oil and gas reservoir ; 成藏动力学 ; pool-forming dynamics ; 断层 ; faults
- 页码：p.594-597
- 图表：2 illus., 2 tables, 12 refs.
- 分类号：1003
- 出版序号：655
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
Fault at the activity period is a vital pathway for oil and gas vertical migration.Hydrocarbon migration is controlled by fault activity period and position.Faults which move during the oil-gas migration and accumulation will become the effective pathway for oil and gas vertical migration.Using the seismic data,this paper calculates the growth index and fault throw of the main faults of Neogene in Raoyang Sag,and infers the fault movement at different periods.The homogenization temperature of fluid inclusion can accurately determine the Neogene oil-gas accumulation period.The combination of the two above analyses can determine the faults which act as passages for oil and gas vertical migration and the prior region for hydrocarbon accumulation. Researches find that the oil-gas accumulation timing of Neogene reservoir in Raoyang Sag is in late Minghuazhen.the local position of the main oil source faults moves strongly in Neogene and the proven Neocene reservoir distribution shows that Neocene reservoirs are more likely to be found near the intense active faults.
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