岩浆岩储层的形成及油气藏类型

对岩浆岩这一特殊油气藏的储层形成及其孔隙结构特征进行了较系统的阐述 ,认为造成该类储层的决定性因素为构造运动、风化及热液作用等 ,形成了以次生的裂缝为主的复杂孔隙结构类型 ,其储渗空间的分布具有局限性和一定的分散性。由此 ,也造成该类油气藏在分类上的特殊性 ,即按其储层成因的主导因素可分为 :构造裂缝油气藏、古风化壳油气藏及火山碎屑岩油气藏等三大类、若干种 ;提出岩浆岩油气藏在地壳中分布的规律 ,为勘探和开发该类油气藏提供一定的理论基础和评价的依据。

The Formation of Magmatic Rock Reservoir and its Oil-Gas Pool Types

This paper discusses the formation of magmatic rock reservoir and its pore structural features in a systematic way. The leading factors for the formation of this kind of reservoir are structural movement, weathering and hot liquid. The secondary pore is the main part in the magmatic rock reservoir pore and the spatial distribution of the reservoir is local and scattering. Based on the leading fact or in formation of the reservoir, the magmatic rock oil-gas pools can be devided into three types: structural crevice oil-gas pool, paleo-weathering-cover oil-gas pool and volcanic slack rock oil-gas pool. The distribution rule of magmatic rock oil-gas pools has thus been revealed. It provides the prospecting and exploration of magmatic rock oil-gas pools with a theoretical basis.