鄂尔多斯盆地富县探区上古生界深盆气成藏条件

Condition of Neopaleozoic Deep Basin Gas Accumulation in Fuxian Ex-ploration Area in Ordos Basin.

富县探区位于鄂尔多斯盆地的东南部,上古生界该区处于盆地南部生烃中心,气源条件较好;区内砂岩储集层较为发育,具致密、低孔低渗的特点。初步的勘探结果表明富县地区上古生界普遍含气,且具有深盆气的基本成藏特点,是天然气勘探的有利地区。

Fuxian exploration area is located in southeastern part of Ordos basin.In Neopaleizoic,this area is in the center of hydrocar-bon generating kitchen in southern part of the basin,being characterized by sufficient supply of gas,well-developed tight sandstone reservoir with low porosity and permeability.Preliminary exploration result shows that the Upper Paleozoic reservoir is widely gas-enriched,and pos-sesses basic features of deep basin gas accumulation.It should be a favorable area for gas exploration.