海外陆相页岩油地质特征与资源潜力  

Geological characteristics and resource potential of overseas terrestrial shale oil

作　　者：李梦莹 朱如凯[1] 胡素云[1] LI Mengying;ZHU Rukai;HU Suyun(PetroChina Research Institute of Petroleum Exploration and Development,Beijing 100083,China)

机构地区：[1]中国石油勘探开发研究院,北京100083

出　　处：《岩性油气藏》2022年第1期163-174,共12页Lithologic Reservoirs

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目“中国陆相页岩油成藏机理、分布规律与资源潜力研究”(编号:2019E-2601)资助。

摘　　要：中国陆相页岩油资源丰富,历经十余年的基础研究、重点地区攻关和选区评价,在技术创新、工业化试验与试生产、规模性开发等方面均取得了显著进展,是未来油气勘探的接替领域。通过对全球典型陆相页岩油地质特征、资源潜力、开发现状进行系统调研和分析,为我国陆相页岩油地质评价和勘探开发部署提供参考。结果表明:(1)美国尤因塔盆地Uteland Butte段的有机质丰度高且具有超压的脆性钙质层和多孔白云岩层为有利区。(2)除美国外,全球101个页岩油盆地152个页岩油层系中,陆相页岩油层系为24个,陆相页岩油资源量占比约为19%。(3)阿根廷6个在产富油气盆地发育6套陆相页岩油层系,其陆相页岩油勘探开发受限于低有机碳含量和烃源岩厚度。(4)澳大利亚库珀盆地REM组以埋藏深度(小于2 000 m)、镜质体反射率(R_(o)为0.7%~1.0%)以及储层厚度(大于15 m)为标准确定3个页岩油有利区,预测技术可采资源量为2.4亿t。(5)乍得邦戈尔盆地Prosopis组、Mimosa组和Kubla组页岩TOC含量高、热成熟度适中(R_(o)为0.7%~1.2%)和浅埋深(500~3 000 m),是页岩油开发的目标层段,技术可采资源量为3.42亿t;(6)乍得Doseo盆地早白垩纪湖相页岩油技术可采资源量为9.77亿t。(7)印度尼西亚苏门答腊盆地发育Brown Shale组和Talang Akar组页岩层系,技术可采资源量分别为3.8亿t、5.61亿t。(8)西欧、北欧地区陆相页岩油资源主要分布于法国巴黎盆地Permian-Carboniferous组和德国下萨克森盆地Wealden组,以有机质成熟度和埋深为依据确定其页岩油技术可采资源量分别为4.36亿t和0.18亿t。该研究成果可为我国陆相页岩油勘探提供借鉴。China is rich in terrestrial shale oil resources.After more than a decade of exploration of terrestria shale oil focusing on basic research,key areas and selection evaluation,remarkable progress has been made in technological innovation,industrial test and pilot production,large-scale development,making it a key area for future oil and gas exploration.The systematic analysis was carried out about the geological characteristics,resource potential and development status of typical terrestrial shale oil all over the world,which can provide a reference for the geological evaluation and exploration and development of terrestrial shale oil in China.The results show that:(1)It is a superiority of high organic matter abundance,overpressure,and fragile calcareous layers and porous dolomite of the Uteland Butte member,Uinta Basin,USA,providing favorable conditions for horizontal well drilling.(2)Except for the USA,of the 152 shale oil formations in 101 basins worldwide,24 are terrestrial shale oil formations,accounting for about 19%of the total terrestrial shale oil resources.(3)There are six terrestrial source rock units are developed in six petroliferous basins in Argentina where the exploration and development of terrestrial shale oil is limited by low TOC content and source rock thickness.(4)REM Formation in Cooper Basin was estimated for about 2.4×10^(8)t of technically recoverable resource according to burial depth(less than2 000 m),vitrinite reflectance(R_(o)=0.7%-1.0%)and reservoir thickness(greater than 15 m).(5)The Prosopis,Mimosa and Kubla Formation in the Bongor Basin of Chad are the target formations for shale oil development,estimated a technically recoverable resource of 3.42×10^(8)t,with the characteristics of high TOC content,moderate thermal maturity(R_(o)=0.7%-1.2%)and shallow depth(500-3 000 m).(6)The technically recoverable resources of shale oil of Early Cretaceous in Doseo Basin are 9.77×10^(8)t.(7)The counterpart of the Brown Shale Formation and Talang Akar Formation in Sumatra Basin are 3.8×10^

关 键 词：尤因塔盆地 库珀盆地 邦戈尔盆地 Doseo盆地 苏门答腊盆地 巴黎盆地 下萨克森盆地 陆相 

分 类 号：TE132.1[石油与天然气工程—油气勘探]