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随着 2 1世纪的到来 ,国家大力发展天然气工业 ,四川盆地将面临勘探领域和接替层系的选择。笔者通过分析勘探成果与待发现资源潜力、成藏地质条件与储备圈闭 ,结合“八五”、“九五”科技攻关成果 ,提出了具备大中型气田条件的七个主要地区和层系 ,川东石炭系、下三叠统飞仙关组 ;川西北侏罗系、中上三叠统 ;川中中、上三叠统 ;川西南震旦系 ;川南、川西南下二叠统。指出了 2 1世纪初叶具有发展远景的五大勘探领域 :①盆地东部石炭系 ;②盆地东北部下三叠统飞仙关鲕粒滩岩 ;③盆地东北部上二叠统长兴组陆棚边缘礁相带 ;④盆地中西部上三叠统和侏罗系浅气层 ;⑤盆地震旦系及下古生界。认为 2 1世纪初叶四川盆地天然气资源潜力大、勘探领域广阔、勘探前景看好。
With the advent of the 21st century, the state vigorously develop the natural gas industry, the Sichuan Basin will face exploration and succession of layers of choice. By analyzing the achievements of exploration and the potential of resources to be discovered, the geologic conditions and reserve traps of reservoirs, the author has put forward seven major regions and strata with large and medium-sized gas fields in light of the scientific and technological achievements of the Eighth Five-Year Plan and the Ninth Five- East Sichuan Carboniferous, Feixianguan Formation of the Lower Triassic; Jurassic, Middle-Upper Triassic in the northwest Sichuan Basin; Middle Triassic of Central Sichuan Basin; Sinian of Southwest Sichuan Basin; Lower Permian of South Sichuan and Southwest Sichuan. Pointed out that there are five major exploration fields with the development prospect in the early 21st century: ① Carboniferous in the east of the basin; ② oolitic beach rock of Feixianguan in the Lower Triassic in the northeast of the basin; ③ reef facies Belt; ④ Upper Triassic and Jurassic shallow layers in the central and western basins; ⑤ Sinian and Lower Paleozoic in the basin. It is considered that there is great potential for natural gas resources in the Sichuan Basin in the early 21st century, a vast exploration area and a good exploration prospect.