甘肃省新能源——油页岩特征及开发利用条件分析  

TYPICAL GEOLOGICAL CHARACTERISTICS AND DEVELOPMENT CONDITIONAL ANALYSIS FOR NEW ENERGY RESOURCES-OIL SHALE IN GANSU PROVINCE,CHINA

作　　者：白云来[1] 李卫红[2] 汤桦[3] 吴武军[1] 马玉虎[1] 

机构地区：[1]中国石油勘探开发研究院西北分院,甘肃兰州730020 [2]甘肃地矿科技信息中心,甘肃兰州730000 [3]西安地质矿产研究所,陕西西安710054

出　　处：《甘肃地质》2011年第4期46-53,93,共9页Gansu Geology

基　　金：甘肃省地质学会和甘肃省石油地质学会资助

摘　　要：非常规油气资源的勘查和开发利用目前已被提到议事日程。油页岩就是首先要考虑开发利用的、现实的、有可能部分代替常规油气资源的非常规能源之一,并已经成为新能源领域里研究的热点。甘肃省的中生代盆地里不仅赋存有良好的煤炭、石油资源,而且蕴藏着较为丰富的油页岩资源。现已查明,省内油页岩预测资源量至少约2 000亿t,折合页岩油约120亿t。现已探明油页岩资源量约为5亿t,折合页岩油约0.3亿t,潜在经济价值达1 000亿元人民币。油页岩主要赋存于中上三叠统及下中侏罗统中。宏观上呈黑色,略具油脂光泽,硬度较小,质量较好。主要有两种成因类型,一种是产于深湖、半深湖中的油页岩,为腐泥质或腐泥—腐殖质成因,以陇东地区鄂尔多斯盆地西南部的油页岩为例。常单独呈层状产出,埋藏较深,厚4～36m,含油率平均6%。干酪根类型I-II1,产烃率400kg/t。密度一般为1.41～2.59(ARD视密度)。另一种是产于三角洲或浅湖相中的油页岩,为腐殖质成因,也呈层状产出,常与煤共生,这以窑街、炭山岭及华亭油页岩为例,厚度一般5～30m,含油率一般7%～9%,发热量一般3.64～10.49MJ/kg。后一类油页岩一般矿区交通便利、构造简单,埋藏较浅。如果能将煤的开发和油页岩的利用结合起来,相信会取得事半功倍的效果,获得巨大的经济效益。这对西部大开发具有极其重要的意义。Oil-shale is one of non-conventional oil-gas which maybe actually,possibly and partly replace conventional oil-gas resources.Not only coal resources and oil resources but also oil shale resources are richer in Mesozoic basins in Gansu province.It has been proved that identified oil shale resources amounts to about 2 000×108t at least,which amounts to 120×108t in shale oil,and demonstrated oil shale resources amounts to about 5×108t which amount s to 0.3×108t in shale oil and amount s to 1 000×108 YUAN（RENMINBIN） in latent commercial value.The oil shale formations（abbre.OSF） main occured in middle-upper Triassic and middle-lower Jurassic.oil shale is mostly black,slightly grease shiny,small hardness,and better quality.There are two genetic types oil shale.One is occurred in the deep lake and semi deep lake and pertains to sapropelic or sapropelic-humus and the oil shale of Longdong area in southwestern Ordos basin is one example which has a layered structure,deeper bury,4-36m thick strata and generally 6% oil yield.The type of kerogen is I-II1.Hydrocarbon yields is 400kg/t.Apparent density is generally 1.41～2.59.The other was occurred in delta or meare and pertains to humus.The oil shale of this type occurred in layered structure also and was constantly associated with coal.Yaojie,Tanshanling and Huating oil shale deposit were others example and the oil shale has generally 5～30m thick strata,generally 7%～9%oil yield and 3.64～10.49MJ/kg caloric value.The latter type has a better transport facilities,simply structure,relatively small bury,and if combining developing coal with deveioping oil shale,a better effectiveness could be acquired and giant economic benefits could be obtained.These have extremely important sense for developing west China and making the people of lag area live a dignity life.

关 键 词：甘肃省 油页岩 开发利用 

分 类 号：P618.12[天文地球—矿床学]