准噶尔盆地天然气勘探现状及勘探对策

准噶尔盆地天然气资源十分丰富，但50年勘探以找油为主，顺带见气，天然气勘探和研究程度均低。准噶尔盆地天然气储量呈跳跃式增长，产量持续稳定增长，处于勘探的初期和快速发展前期，天然气发现点多面广,剩余出气井多而分散，显示良好苗头和发展前景，预示存在较大勘探场面。由盆缘到腹部、由浅部到深层．探井气油比增高,预示腹部及下部组合存在大气田。准噶尔盆地天然气资源类型构成多样，资源前景需要重新认识和评价。准噶尔盆地天然气资源探明程度低，剩余资源丰富，主要分布在四大领域，具备形成大气区的资源基础，勘探潜力巨大,同时天然气成藏条件复杂,勘探难度大，急需加强攻关。通过加大勘探力度，加快勘探步伐，准噶尔盆地有望成为中国西部又一大气区。指出了准噶尔盆地天然气勘探存在的3方面主要问题，提出进一步勘探的对策和建议。图2表3参21

Current situation of natural gas exploration and its countermeasures in Junggar Basin

Owing to the historical reason, the exploration and study of natural gas were at a low level in the past 50 years of the Junggar Basin. The natural gas is in an early and fast-growing stage with the explored reserves increasing in skip-style and its yearly output rising continually and stably. The wide distribution of natural gas and large numbers of residual gas wells in the basin promise a good development prospect. Gas/oil ratios of wells go up from the margin to the central region and from the shallow layer to the deep zone in the basin, showing that there are big gas fields in the central region and lower compounding. The residual gas resources are abundant and mainly distributed in four big exploring areas. Three main problems of natural gas exploration are pointed out and countermeasures and suggestions are brought forward.