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富县地区上古生界致密砂岩储层包含多套含气层段,最具有开发价值的高产层段位下石盒子组盒8段、山西组、本溪组,但不同层组之间的产气量差异明显。利用测井、录井、试气、矿物薄片等资料,对储层物性,岩石特征,成岩作用进行分析研究,认为该地区上古生界主要含气层段的成岩作用已普遍进入晚成岩A阶段,高产气层主要储层特征表现为储层非均质性较弱,并发育裂缝。储层非均质性是含气层段产能主要的影响因素。
The upper Paleozoic tight sandstone reservoirs in Fuxian area contain multiple sets of gas bearing intervals, and the most productive value is the 8th member of the lower lithosphere box set, Shanxi Formation and Benxi Formation. However, obvious. Based on the data of well logging, logging, gas test and mineral flake, the reservoir physical properties, rock characteristics and diagenesis are analyzed. It is concluded that the diagenesis of the main gas-bearing interval in the Upper Paleozoic has generally entered the A stage of late diagenesis The main reservoirs in high-yield gas reservoirs are characterized by weak reservoir heterogeneity and the development of fractures. Reservoir heterogeneity is the main factor affecting gas-bearing capacity.