Strategic area selection and key exploration fields in central and western large basins
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摘要: 国家油气矿业权体制改革与新政导致矿权空白区日益扩大，为了挖掘、提升空白区油气战略价值，促进油气资源的发现与充分利用，保障国家能源安全，通过分析我国油气资源结构与分布特点，聚焦陆上主要矿权空白区，立足油气地质条件与关键成藏要素的研究，按照逐级分类的流程，开展了战略选区与重点勘探领域的优选。塔里木盆地南北台盆深凹区天然气、准噶尔盆地东北石炭系天然气与侏罗系煤层气、鄂尔多斯盆地东、北缘上古生界致密气与煤层气、中上扬子盆外平缓构造区海相页岩气是未来战略选区的重点方向。结合各领域油气地质特点与关键问题，提出了深化研究、技术攻关方向及选区评价工作建议。Abstract: The reform and new policies of national oil and gas mining rights system have led to the increasing number of mining rights blank areas. In order to tap and enhance the strategic value of oil and gas in blank areas, promote the discovery and full use of oil and gas resources, and ensure the national energy security, this paper, by analyzing the structure and distribution characteristics of China's oil and gas resources, focusing on the main mining rights blank areas on land, and studying on oil and gas geological conditions and key reservoir-forming factors, carries out the optimization of strategic area selection and key exploration fields according to the process of stepwise classification. It is pointed out that the natural gas in the deep depression of the north and south platform basins of the Tarim Basin, the Carboniferous natural gas and the Jurassic coalbed gas in the northeast of the Junggar Basin, the Neopaleozoic tight gas and coalbed gas in the eastern and northern margins of the Ordos Basin, and the marine shale gas in the extrabasinal gentle structural area of the Middle and Upper Yangtze are the key directions for future strategic area selection. Combined with the characteristics and key problems of oil and gas geology in various fields, suggestions are put forward for deepening research, technical research direction and evaluation of selected areas.
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Key words:
- coalbed gas /
- shale gas /
- petroleum strategic area selection /
- Middle and Upper Yangtze /
- Tarim Basin /
- Junggar Basin /
- Ordos Basin
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图 2 中国中西部大盆地重点领域及非常规战略选区评价
Figure 2. Evaluation of key fields and unconventional strategic area selection in large basins in central and western China
图 3 塔里木盆地下寒武统玉尔吐斯组烃源岩分布
Figure 3. Distribution of source rocks in Lower Cambrian Yuertus Formation, Tarim Basin
图 4 准噶尔盆地油气系统分布及近期新领域突破井
Figure 4. Distribution of oil and gas system in Junggar Basin and recent breakthrough wells in new fields
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