为确保四川盆地致密气勘探开发持续发展,实现规模效益开发,对四川盆地致密气勘探开发现状、发展面临问题及应对策略开展了分析研究。研究结果表明:四川盆地致密气资源丰富、地质条件总体较好、易于规模聚集成藏,勘探开发潜力巨大;勘探开发主体技术基本形成、成本持续下降,加快上产条件已成熟;在精细刻画河道砂体分布、甜点地震精准预测、实现优快钻井和加快上产节奏等方面仍存在一定问题。应进一步深化盆地致密气成藏研究以明确天然气富集规律;开展致密气地质工程一体化研究和砂岩有水气藏的开发技术攻关以降低开发成本;持续技术创新与管理创新相结合以实现致密气规模效益开发;加大对致密气开发经济政策支持的应对策略研究。

In order to ensure the sustainable development of tight gas exploration and development in the Sichuan Basin and achieve economies of scale development, an analysis and research have been conducted on the current status, challenges faced, and response strategies for tight gas exploration and development in the Sichuan Basin. The research results indicate that the Sichuan Basin is very rich in tight gas resources, the geological conditions are generally favorable, and it is conducive to large-scale accumulation and reservoir formation, with significant exploration and development potential. The main technologies for exploration and development have basically taken shape, and the costs continue to decline, hence the conditions are matured for accelerating production. However, there are still certain issues in finely characterizing the distribution of river sand bodies, accurately predicting sweet spot seismic events, achieving optimal and fast drilling, and speeding up the pace of production. Further research into the formation mechanisms of tight gas reservoirs in the basins should be deepened to clarify the patterns of natural gas enrichment. Integrated research on the geological and engineering aspects of tight gas, along with technical breakthroughs in the development of water-bearing sandstone gas reservoirs, should be conducted to lower the development costs. The combination of technological innovation and management innovation should be sustained to achieve economies of scale development of tight gas. Additionally, research into strategies for increasing economic policy support for tight gas development should be expanded.