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准噶尔盆地天然气勘探自呼2 井突破后,钻探结果一直不理想.为了加大该盆地天然气的勘探力度,组织了“九五”国家重点科技攻关项目《准噶尔盆地天然气勘探目标评价》.作为攻关项目参加者之一的该文作者,根据该盆地油气勘探成果及有关地质资料,将准噶尔盆地划分为南缘、环盆1 井西凹陷和环中拐凸起等三个聚气带.通过研究分析认为,南缘聚集带的第二、三排构造具有形成大中型气田的有利地质条件,为首选目标区,主要目的层为下第三系紫泥泉子组;环盆1 井西凹陷聚集带与环中拐凸起聚集带是寻找中小型气田的重要地区,前者主要目的层是下侏罗统三工河组,后者主要目的层是上二叠统的乌尔禾组和下二叠统的佳木河组.随着勘探程度的提高,勘探对象逐渐转为隐蔽圈闭,所以识别可靠圈闭将是今后工作中的重点和难点.“,”Since the breakthrough at well Hu 2 the drilling results have been always dissatisfactory for the natural gas exploration in Zhungeer Basin.According to the oil and gas exploration achievements in the basin and to relevant geological data,three gas accumulation zones as south boundary,the depression on the west of well around Pen 1,and around Zhongguai arch are divided in the basin by the authors who took part in the national scientific and technological key research project of the “Ninth Five Year Plan”,“Target Evaluation of Natural Gas Exploration in Zhungeer Basin” which was carried out for intensifying the natural gas exploration in this basin.Through analysis it is thought that the second and third rows of structures in south boundary gas accumulation zone have the favourable conditions for forming large and medium sized gas fields,being the first chosen target area where the principal objective zone is the Ziniquanzi Formation of Paleogene;and that the gas accumulation zones of the depression on the west of well around Pen 1 and the around Zhongguai arch are the significant regions of looking for medium and small sized gas fields,the principal objective zone of the former is the Sangonghe Formation of Lower Jurassic and the principal objective zones of the latter are the Wuerhe Formation of Upper Permian and the Jiamuhe Formation of Lower Permian.Along with the rising of the degree of prospecting,the targets of exploration will be turned to the subtle traps,so that it will be the focal and difficult points in the exploration works in the future to identify the reliable traps.