我国主要含油气盆地油气资源潜力及未来重点勘探领域

油气资源是油气工业的基础，随着油气勘探工作的不断深入，油气勘探形势发生了明显变化，亟需评价落实国内常规与非常规油气资源潜力，明确剩余油气资源的重点勘探领域与有利勘探方向，夯实油气资源家底.中国石油天然气集团公司以近十几年来油气勘探成果、地质认识成果与资料积累成果为基础，攻关形成常规与非常规油气资源评价方法技术体系，系统开展了第四次油气资源评价，评价结果显示我国常规石油地质资源量1 080.31×108 t，技术可采资源量272.50×108 t；常规天然气地质资源量78×1012 m3，技术可采资源量48.45×1012 m3.我国非常规油气资源非常丰富，非常规石油地质资源量672.08×108 t，技术可采资源量151.81×108 t；非常规天然气地质资源量284.95×1012 m3，技术可采资源量89.3×1012 m3.其中，致密油地质资源量125.80×108 t，油砂油地质资源量12.55×108 t，油页岩油地质资源量533.73×108 t；致密砂岩气地质资源量21.86×1012 m3，页岩气地质资源量80.21×1012 m3，煤层气地质资源量29.82×1012 m3，天然气水合物153.06×1012 m3.我国陆上常规剩余油气资源主要分布在岩性-地层（碎屑岩）、复杂构造（碎屑岩）、海相碳酸盐岩、前陆冲断带四大重点领域.其中，陆上剩余石油资源主要分布在岩性-地层（碎屑岩）、复杂构造（碎屑岩）两大领域，陆上剩余天然气资源主要分布在海相碳酸盐岩、前陆冲断带两大领域.海域油气资源主要分布在构造、生物礁、深水岩性3个领域. 

Potential of Oil and Natural Gas Resources of Main Hydrocarbon- Bearing Basins and Key Exploration Fields in China

Resources are the foundation of oil and gas industry.With the continuous development of exploration and the obviously changed situation, it is urgent to evaluate the potential of domestic conventional and unconventional oil and gas resources, as well as the favorable directions of the remaining resources, in order to consolidate the foundation of the cognition for oil and gas resources.In this paper, the system of methodology and technology in resource assessment for conventional and unconventional resources is researched and developed based on the achievements in oil and gas exploration, geological recognitions and accumulation of research data, which leads to the systematical initiation of 4th resources assessment.According to the results, there is 1 080.31×108 t of conventional oil with 272.50×108 t of recoverable resources.There is 78×1012 m3 of conventional gas with 48.45×1012 m3 of recoverable resources.There are also abundant unconventional resources in China.There is 672.08×108 t of unconventional oil in which recoverable resources make up 151.81×108 t.There is 284.95×1012 m3 for unconventional gas in which recoverable resources account for 89.3×1012 m3.Among these types of unconventional resources, the geological amount of tight oil is 125.80×108 t, the geological amount of oil sands is 12.55×108 t, the geological amount of oil shale is 533.73×108 t, the geological amount of tight gas is 21.86×1012 m3, the geological amount of shale gas is 80.21×1012 m3, the geological amount of coalbed methane is 29.82×1012 m3, the geological amount of natural gas hydrate is 153.06×1012 m3.The remaining resources of conventional oil and gas are mainly distributed in 4 domains, which are clastic rocks in domain of lithologyformation, clastic rocks of complex structures, carbonatites of marine facies and belts of foreland thrust.The onshore part of remaining oil is mainly distributed in the former 2 domains.The onshore part of remaining gas is mainly distributed in the latter 2 domains.The offshore resources are mainly in 3 domains which are structures, bio-reefs and lithologic traps of deep water.