摘要
东濮凹陷深层(3500m以下)天然气资源丰富。按气藏产状将深层气藏分为构造型、非构造型和复合型气藏。受生气洼陷、区域盖层、深层高压和煤系二次生烃的控制,深层气富集于较大的继承性隆起和岩性砂体发育区。次生孔隙发育带是深层气藏高产的关键。环洼带是寻找下第三系油成气藏的有利区域,中央隆起带为煤成气有利勘探方向。
Natural gas is abundant in deep layer (under 3500m) of Dongpu Depression. According to its occurrence, the deep gas reservoir would be divided into structural , non-stuctural and composite reservoirs. Under control of gas generating sub-depression; regional cap-rock, deep high pressure, secondary hydrocarbon generation of coal-bearing series, deep-seated gas is concentrated in inherited uplifts and lithologic sandbody growing area. Secondary pore growing zone is the key of high production of deep-seated gas reservoir, ring sub-depression zone is beneficial area for finding lower Tertiary oil formed gas reservoir, central uplift zone is beneficial exploration direction of coal-formed gas .
出处
《江汉石油学院学报》
EI
CSCD
北大核心
2003年第2期19-20,共2页
Journal of Jianghan Petroleum Institute
基金
中国石油化工股份有限公司科技项目(95-102-08-08)
关键词
深层气
气藏类型
油气分布
深层勘探
东濮凹陷
deep-seated gas
type of gas reservoir
oil and gas distribution
deep layer exploration
Dongpu Depression