我国天然气资源潜力及应采取的对策

Chinese natural gas: Potential resources and recommended strategies

截至2008年底,我国已探明天然气地质储量63357亿立方米,可采储量38687亿立方米,资源探明率11.34%,尚有待探明资源量近50万亿立方米,勘探潜力巨大。我国的天然气资源主要分布在塔里木、鄂尔多斯、四川等9大盆地,分布区域相对集中。此外,我国天然气资源还有层系分布广泛、深度分布跨度大、低品位资源比例大、地理环境分布复杂的特点。今后我国天然气勘探主要集中在大面积砂岩岩性带、前陆盆地、克拉通盆地和裂谷盆地四个领域。当前,我国天然气行业面临勘探开发难度加大、上游成本日渐增高、实用技术储备不足、供求矛盾逐渐扩大的挑战。为此,要做好开源节流:一方面立足国内,加强国内天然气资源的勘探开发;另一方面放眼全球,加快建立海外天然气生产基地;同时要加快国内天然气管网及储运基础设施建设,加快完善我国天然气行业法规。

As of late 2008, China held 6335.7 billion cubic meters (bcm) of proved original gas in place (OGIP). Recoverable reserves totaled 3867.8 bcm, with 11.34% of resources verified. With close to 50 trillion cubic meters in unproved reserves, there is vast potential for exploration. The bulk of China’s natural gas resources are concentrated in nine large basins, including the Tarim, Ordos and Sichuan basins. In addition, these resources are characterized by distribution over a broad range of strata and depths, a high proportion of lowgrade resources, and complex geographical distribution. Future natural-gas exploration in China will be chiefly focused in large sandstone lithozones, foreland basins, craton basins and rift basins. Currently, however, the industry has a number of challenges to overcome: the increasing difficulty of exploration and development, rising upstream costs, inadequate application of R&D capability, and a growing imbalance between supply and demand. This means China’s natural gas industry must strengthen its presence domestically and step up efforts to explore and develop Chinese gas resources; meanwhile, the industry should also adopt a global perspective and speed the process of establishing production bases abroad. Other priorities include accelerating construction of a domestic pipeline grid, a storage and transport infrastructure, and a comprehensive set of industry regulations.