我国常规与非常规天然气资源潜力、重点领域与勘探方向  

China's conventional and unconventional natural gas resource potential,key exploration fields and direction

作　　者：郑民[1] 李建忠[1] 吴晓智[1] 王社教[1] 郭秋麟[1] 于京都 郑曼[1] 陈宁生[1] 易庆[1] Zheng Min;Li Jian-zhong;Wu Xiao-zhi;Wang She-jiao;Guo Qiu-lin;Yu Jing-du;Zheng Man;Chen Ning-sheng;Yi Qing(PetroChina Research Institute of Petroleum Exploration ＆ Development,Beijing 100083,China)

机构地区：[1]中国石油天然气股份有限公司勘探开发研究院,北京100083

出　　处：《天然气地球科学》2018年第10期1383-1397,共15页Natural Gas Geoscience

基　　金：中国石油天然气集团公司科技重大专项"中国石油第四次油气资源评价"(编号:2013E-0502);国家科技重大专项"我国含油气盆地深层油气分布规律与资源评价"(编号:2017ZX05008-006)联合资助

摘　　要：常规与非常规天然气在新层系、新领域勘探获得一批重大突破,但新增储量品质下降,非常规进入储量序列,亟需明确常规与非常规天然气资源潜力,明确剩余天然气资源的重点勘探领域与有利勘探方向。为此,中石油以近十几年来的油气勘探成果、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天然气地质资源量为78×10^(12) m^3,相比第三次油气资源评价增长8×10^(12) m^3;非常规天然气资源主要包括致密气、页岩气、煤层气及天然气水合物4类,其中致密气地质资源量为21.86×10^(12) m^3(致密气评价范围不包括济阳、东濮、南襄、苏北等),页岩气地质资源量为80.21×10^(12) m^3,煤层气地质资源量为29.82×10^(12) m^3,天然气水合物地质资源量为153.06×10^(12) m^3。陆上常规剩余天然气资源主要分布在岩性—地层(碎屑岩)、海相碳酸盐岩、前陆冲断带及复杂构造等四大重点领域,并且以海相碳酸盐岩、前陆冲断带2个领域为主。海域天然气资源主要集中在海域构造、生物礁和深水岩性3个领域。海相碳酸盐岩、前陆、岩性地层、复杂构造和南海天然气资源量合计剩余59.83×10^(12) m^3,占全国剩余天然气资源量的94%。在此基础上优选出常规现实有利目标区带10个,致密气有利目标区带4个、煤层气4个、页岩气6个。A series of significant breakthroughs in exploration for conventional and unconventional resource have been acquired.But the quality of increased reserves decreased with unconventional resource into the re- serve sequence,which means that there is a need for clarifying the conventional and unconventional re- source potential as well as the important explorative regions in residue resource and the favorable direc- tions.For this and based on the results in exploration for oil and gas,the recognitions in petroleum geology and the accumulations about explorative data in more than recent decade acquired by PetroChina,an entire system in resource assessment for conventional and unconventional resource is established.The 4th round of resource assessment is accordingly and systematically executed.The result acquired in the assessment indi- cates that the total amount of domestic conventional resource is 78×10^12m^3 with an increase of 8×10^12m^3 compared to the result from the 3rd round of assessment.Unconventional resource includes four types such as tight gas,shale gas,coMbed methane and natural gas hydrate. Among them,there is 21.86 × 10^12m^3 for tight gas （Jiyang,Dongpu,Nanxiang,Subei,etc.are excluded for the region being assessed）,80.12×10^12m^3 for shale gas,29.82× 10^12m^3 for coalbed methane and 153.06 × 10^12 m^3 for natural gas hydrate.The residue resource for onshore conventional natural gas mainly distributed in 4 significant respects such as lithology- strata （clastic rock）, carbonatites of marine facies, foreland thrust belts and complex tectonic belts, which is predominated by carbonatites of marine facies and foreland thrust belts. The resource for off shore natural gas mainly concentrates in the reserves of three respects such as offshore structures,organic reef and lithol- ogy in deep water.The total amount of residue resource contained in reserves as carbonatites of marine faci- es, foreland,lithology-strata, complex tectonic belts and South China Sea are 59.83× 10^12 m^3 ,which occupi

关 键 词：资源评价 天然气资源潜力 剩余天然气资源潜力 资源分布 重点勘探领域 有利目标区带 

分 类 号：TE132.1[石油与天然气工程—油气勘探]