LX气田上古生界致密砂岩储层成岩作用分析

LX气田致密气勘探已取得了一系列进展,拥有较大的勘探潜力。主要目的层为上古生界地层。LX气田储层整体上为低孔低渗的致密储层,但局部发育高孔高渗层段,因此,成岩作用为影响该区储层物性的主控因素,对储层储集空间的形成、保存及破坏都有着极为重要的作用,最终决定储层物性好坏,搞清成岩作用类型对气田下一步勘探开发至关重要。本文基于普通薄片资料,系统分析了LX气田储层成岩作用类型及对储层物性的影响。

Diagenesis analysis of tight sandstone reservoir of Upper Paleozoic in LX gas field

A series of progress has been made in tight gas exploration of LX gas field,which has great exploration potential.The main target stratum is upper Paleozoic.LX gas field reservoir is a compact reservoir with low porosity and low permeability,but high porosity and high permeability are developed locally,Therefore,diagenesis is the main factor affecting the physical properties of the reservoir in this area,which plays an important role in the formation,preservation and destruction of the reservoir space,It is very important for the next exploration and development of the gas field to find out the type of diagenesis.Based on the common thin section data,this paper systematically analyzes the diagenesis type of LX gas field reservoir and its influence on reservoir physical properties.