HC断裂带石炭系火山岩储层非均质性特征

储层非均质性是储层岩石的基本属性之一,它严重制约和影响油气储层的储渗性能和油气藏开发的效果,是储层(尤其是火山岩储层)研究的一个重点。通过研究HC断裂带石炭系火山岩储层的孔隙非均质性、层内非均质性和平面非均质性,认为:石炭系火山岩储层非均质性较强,火山岩岩石结构、岩石的矿物成份以及孔隙结构都对储层的孔隙非均质性有影响;而储层的层内和平面非均质性则主要表现在储层岩石、储层孔隙度以及渗透率在剖面和平面上分布的不均一性。

The heterogeneity characters of volcanic reservoirs in Carboniferous of HC fault zone

Reservoir heterogeneity, one of the basic properties of reservoir rocks, seriously restricts and affects the reservoir permeability and the development effects of the oil and gas reservoir. It is also a research emphasis of reservoirs, especially the volcanic reservoirs. By studying the pore heterogeneity, the intraformational heterogeneity and the areal heterogeneity of volcanic reservoirs in Carboniferous of HC fault zone, it is found that volcanic reservoirs in Carboniferous has strong heterogeneity. The pore heterogeneity is affected by the volcanic rock texture, mineral composition and pore texture, while the intraformational heterogeneity and areal heterogeneity are mainly reflected in the distribution heterogeneity of the volcanic rocks, porosity and permeability on the profile and the plane.