幕式成藏理论的提出及其勘探意义

赵靖舟

doi:10.11781/sysydz200504315

幕式成藏理论的提出及其勘探意义

doi: 10.11781/sysydz200504315

赵靖舟

西安石油大学资源工程系, 西安 710065

基金项目: 国家"九五"重点科技攻关项目(99-111-01-04-05);国家"十五"重点科技攻关项目(2001BA605A-02-01-06)

详细信息

作者简介:
赵靖舟(1962- ),男(汉族),陕西西安人,教授,主要从事成藏地质学、天然气地质及地球化学研究.

中图分类号: TE122.3
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出版历程
- 收稿日期: 2004-07-15
- 修回日期: 2005-06-21
- 刊出日期: 2005-07-25

THEORY OF EPISODIC MIGRATION AND ACCUMULATION：EVIDENCE AND EXPLORATION SIGNIFICANCE

Zhao Jingzhou

Xi'an Petroleum Universiy, Xi'an, Shannxi 710065, China

摘要

摘要: 幕式成藏是一种快速、高效的成藏方式,并常常具有周期性,因而对于高富集度大中型油气田的形成具有十分重要的意义。同渐进式成藏一样,幕式成藏也是含油气盆地一种普遍存在的成藏方式,特别是对于多构造运动、断裂发育的盆地以及异常压力比较发育的盆地(如前陆盆地和裂谷盆地等),幕式成藏往往占有重要地位;而在构造运动相对较稳定的克拉通盆地,一般以渐进式成藏为主。与渐进式成藏不同,幕式成藏在时间上并不完全受生烃窗控制,而主要受控于区域构造运动、断裂活动和异常压力的演化,因此盆地的构造演化史、断裂活动史和异常压力发育史往往决定了幕式成藏史。幕式成藏理论的提出,不仅是对传统油气成藏理论的一个重要补充,更重要的是拓宽了油气勘探领域,进一步明确了大中型油气田的勘探方向。
- 幕式成藏理论 /
- 幕式成藏证据 /
- 流体封存箱 /
- 成藏规律 /
- 勘探意义
Abstract: It is evidenced that episodic migration and accumulation is rapid,efficient and periodic as a kind of reservoir formation,and therefore significant to the formation of mid-large oil and gas fields.Like gradual migration and accumulation of hydrocarbon,episodic migration and accumulation is also found to be quite common type of reservoir formation in petroleum basins.Compared with gradual migration and accumulation,episodic migration and accumulation is particularly important in basins that experienced strong orogenies,fault activity or have abnormal pressures.Unlike gradual migration and accumulation,which is more important in cratonic basins,episodic migration and accumulation is more important in foreland and rift basins.It should be noted that episodic migration and accumulation is not fully controlled by hydrocarbon generation window in time,but mainly by tectonic events (fault activity in particular) and evolution of abnormal pressure as well.Consequently,history of tectonic changes,fault activity and/or abnormal pressure development determine that of episodic migration and accumulation.The theory of episodic migration and accumulation is not only an important supplement to the traditional theory of petroleum geology,but also broads the exploration domain and further defines the exploration orientation of mid-large oil and gas fields.
- theory of episodic migration and accumulation /
- evidence of episodic migration and accamulation /
- fluid compartment /
- regularity of migration and accumilation /
- exploration significance

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