楚雄盆地天然气有利聚集地区的预测

DETECTION OF FAVOURABLE AREA OF GAS ACCUMULATION IN CHUXIOG BASIN

楚雄盆地为晚三叠世断陷盆地基础上发展起来的中新生代沉积盆地。本文在论述该盆地发展史,进行构造单元划分与评价的基础上,指出楚雄盆地具有较大型天然气藏勘探远景。最有利地区是中部坳陷,牟定斜坡又是中部坳陷中最有利构造带,会基关构造则是寻找天然气藏的关键圈闭,建议在它上面首钻一口科学探索井。

Chuxiong basin is a Mesozoic-Cenozoic sedimentary basin developed on the basis of Upper Triassic Epoch faulting-subsiding basin. Based on the discussion of the developmental history of the basin and on the division and evaluation of tectonic units, this paper has pointed out the exploration prospects of the large gas reservoirs in Chuxiong basin. The more favourable area is in the central section of the depression, where the more favoutable tectonic belt is mouding slope. Huijiguan structure is a key trap of the gas reservoirs. It is proposed in this paper that a scientific research well be drilled first there.