学术
地层油气藏类型与成藏规律
杨勇[1,2] 查明[3] 孟闲龙[1,2]
[1]中国石化石油勘探开发研究院西部分院,乌鲁木齐830011 [2]中国石化石油勘探开发研究院,北京100083 [3]中国石油大学地球资源与信息学院,山东东营257061
摘 要:
地层油气藏分为地层不整合体油气藏、地层不整合遮挡油气藏、地层超覆油气藏和生物礁油气藏等4种类型。不整合发育的层状结构为油气成藏提供了有利条件，在不整合构造体内部。不整合面的上、下都发现有油气藏的存在。这种新的类型被定义为地层不整合体油气藏，它以不整合结构体体系内成藏为特点。地层不整合遮挡油气藏主要以削截不整合和褶曲不整合类型为主，超覆带易于形成复合型地层油气藏。地层油气藏与不整合关系密切，具有明显的成藏规律。不整合展布具有区带性；与传统上把不整合理解为遮挡性面状体的认识不同．不整合还能提供优质的储集空间；不整合油气成藏受多因素影响，并对油气成藏具有重要的指示作用。[著者文摘]
文章出处:
《新疆石油地质》-2007年28卷5期 -647-649页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1001-3873（2007）05-0647-03
Types and Patterns of Hydrocarbon Accumulation of Stratigraphic Reservoirs
YANG Yong, ZHA Ming, MENG Xian-long （1.West Branch, Research Institute of Petroleum Exploration and Development, Sinopec, Urumqi, Xinjiang 830011, China; 2.Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100083, China; 3.Facuhy of Geo-Resources and Information, China University of Petroleum, Dongying, Shandong 257061, China）
Abstract:
Stratigraphic reservoir is divided into four types such as stratigraphic unconformity system reservoir, stratigraphic unconformity barrier reservoir, stratigraphic onlap reservoir and biohermal reservoir. The unconformity has developed layered textures, which provide favorable conditions for hydrocarbon accumulation. Hydrocarbon reservoirs are all found in the upper and the lower of unconformable surface. Such a new type of reservoir is defined as the stratigraphic unconformity system reservoir which is characterized by hydrocarbon accumulation within the unconformity structural system. The stratigraphic unconformity barrier reservoir is dominated by truncated unconformity and folded one. The overlap belt tends to shaping complex stratigraphic reservoir. Therefore, stratigraphic reservoirs are all closely related to unconformity, and possess distinct patterns for hydrocarbon accumulation. The distribution of unconformity is of play propery. Different from conventional recognition regarding the unconformity as barrier-like planner system, unconformity could provide premium storage spaces. The unconformity hydrocarbon accumulation or reservoir is affected by several factors, but unconformity is of instructed effect on the hydrocarbon accumulation.[著者文摘]
Key words:
stratigraphic reservoir; reservoir type; stratigraphic unconformity system reservoir; hydrocarbon accumulation pattern
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