鄂尔多斯盆地天然气勘探形势与发展前景

Gas exploration and developing prospect in Ordos Basin

近年来鄂尔多斯盆地天然气勘探不断取得突破与进展，继下古生界奥陶系发现第一个10^11m^3级大气田（靖边气田）以来，在上古生界又发现了榆林、苏里格、乌审旗等多个10^11m^3级大气田和子洲整装含气富集区，天然气勘探态势良好，累计探明储量已达1．3×10^12m^3。勘探实践和综合研究表明，该盆地后备资源充足，勘探潜力较大。其中，盆地东部多层系复合含气区、靖边古潜台周围、盆地南部、盆地西北部以及煤层气和生物气是天然气勘探发展的重要领域，未来10年可望再新增（5～10）×10^11m^3的天然气探明储量，天然气勘探前景良好。

Gas exploration has a great improvement in Ordos Basin in recent years. After the discovery of Jingbian Gas Field with proved reserves over 100 billion cubic meters in the Lower Paleozoic,the Yulin,Sulige and Wushenqi gas fields with the same reserves in the Upper Paleozoic of Ordos Basin were also discovered and proved up. The Zizhou gas-enriched region of the Upper Paleozoic in the east part of Ordos Basin was discovered recently. At the same time,new discoveries have also been gained in other regions of the basin. The proved gas in place reached 1.3 × 10^12 m^3 in Ordos Basin. This basin has become the biggest gas enriched region with proved reserves over trillion cubic meters in China. Exploration activities and multiple-discipline comprehensive researches show that Ordos Basin has the superior potential for natural gas exploration. The east part of Ordos Basin,edges of Jingbian buried platform, south and northwest parts of Ordos Basin,and coal-bed gas and biogas are the important fields for future exploration and development of gas. It is prospective for gaining another proved gas in place of （5-10） × 10^11m^3 in the following decade.