中国克拉通盆地中央古隆起与油气勘探  

PETROLEUM EXPLORATION IN CENTRAL PALEO-UPLIFTS OF CRATONIC BASINS IN CHINA

作　　者：何登发[1] 谢晓安[2] 

机构地区：[1]石油勘探开发科学研究院,北京100083 [2]中国石油天然气总公司石油地球物理勘探局,河北涿州072751

出　　处：《勘探家（石油与天然气）》1997年第2期11-19,共9页

摘　　要：中央古隆起是因裂谷(或坳陷)急剧沉降、均衡翘升形成的,后期常受到前缘隆起的叠加。中央古隆起有叠加、塌陷、残存三种基本类型,有整体升降与差异构造变形两种运动形式,古隆起对岩相具有控制作用。中央古隆起有利于油气聚集,隆起轴部及上斜坡带是油气聚集的最佳部位,油气田常围绕主要不整合面分布。中央古隆起以古风化壳及其下伏碳酸盐岩、上覆砂岩体为主要勘探目的层,地层—岩性油气藏及披覆背斜油气藏为主要勘探目标。本文根据我国中央古隆起的勘探现状,提出了下一步的油气勘探方向。Petroleum exploration in central paleo-uplifls in cratonic basins has played an important role in China petroleum industry. The central paleo-uplifts were resulted from isostatic uplifting of the rift shoulders (or accordingly parts) due to the rapid subsidence of rifts (or depressions). It has been subjected to more than two periods of erosion as a whole and superimposed the forebulges at the later history. It is characterized by three basic types, i.e. the superimposed, the collapsed and the residual (or survived), and two kinematic styles, i.e. the whole elevation and the different structural deformation. The paleo-uplifts controlled sedimentary facies to some degree. Its axial zones and upper slopes are much favorable for hydrocarbon accumulation. Oil and gas fields often occur around the main unconformities. The lower carbonates and the upper sandstones of the weathering crust are the most important plays for hydrocarbon prospecting. The stratigraphic-lithologic oil and gas pools and the draping anticlinal pools are the predominant targets.

关 键 词：中国 隆起区 地质构造 油气勘探 克拉通盆地 

分 类 号：P618.130.2[天文地球—矿床学] P618.130.8[天文地球—地质学]