沧县隆起中南段的大港探区上古生界煤层保存完整,分布广泛(埋深浅于2 000 m的面积近1500km~2),预测有利煤层气资源量3228×10~8m~3。依据与该区相邻的沧县隆起大城地区的煤层气开发实验已取得初步成功之事实,认为该隆起大港探区也具有良好煤层气勘探开发前景。

Coalbed gas development was made great success in Dacheng highs within Cangxian uplift. As the same setting, on the southern parts of Cangxian uplift, coaly beds in upper Paleozoic are preserved in good condition and stable distribution in Dagang fields. The coaly beds area less than 2 000 m is about 1 500 km2. The estimate of benefit coalbed gas resources is 3 228×108 m3, so that there is great potential of coalbed gas in Dagang oil field.