摘要
为了促进中国天然氢气藏的勘探和开发,推动天然氢气分布、富集机制以及成藏条件等方面的研究,基于文献调研剖析了非洲陶德尼盆地马里天然氢气勘探实例,同时介绍了全球天然氢气勘探进展。研究表明:马里氢气田的氢最可能的来源是西非克拉通Leo-Man地盾2.2~2.1 Ga岩石的活跃蛇纹石化作用,是岩石中的二价铁与水反应的产物。该氢气田发育两种类型的储层:上部储层为白云质碳酸盐岩,其中氢气主要以游离态存在;下部储层为砂岩,氢气主要以溶解态存在。氢气主要沿着断裂从氢源运移到储层,并在辉绿岩盖层的封闭下成藏。全球从事天然氢气勘探的公司数量已从2020年的3家增加到2023年的40家,多个国家已经开始发放氢气勘探许可证,但总体而言天然氢气的勘探和开发还处于起步阶段,成功案例较少,需要加强科学探索和技术突破。
This study aims to enhance the exploration and exploitation of China's natural hydrogen reservoirs and to advance research on the distribution,enrichment mechanisms,and accumulation conditions of natural hydrogen.Based on a literature review,we perform a case study of natural hydrogen exploration in the Mali hydrogen field within the Taoudeni Basin in Africa and introduce global advances in natural hydrogen exploration.The results reveal that the hydrogen in the Mali gas field most likely originates from the active serpentinization of 2.2-2.1 Ga rocks in the Leo-Man Shield of the West African Craton and,thus,is the product of reactions of ferrous irons in rocks with water.The Mali hydrogen field contains two distinct types of reservoirs,namely the upper dolomitic carbonate reservoir and the lower sandstone reservoir,where free hydrogen and dissolved hydrogen are primarily found,respectively.Hydrogen migrates from the source to these reservoirs primarily along faults,subsequently accumulating beneath diabase cap rocks.Increasingly more companies have engaged in natural hydrogen exploration worldwide,with their number surging from three in 2020 to 40 in 2023,and multiple countries have started to issue hydrogen exploration licenses.Nevertheless,the exploration and production of natural hydrogen are still in their initial stages,with only a few successful cases.Therefore,greater efforts are necessary to conduct scientific exploration and achieve technological breakthroughs.
作者
苏宇通
金之钧
刘润超
王璐
SU Yutong;JIN Zhijun;LIU Runchao;WANG Lu(Institute of Energy,Peking University,Beijing 100871,China;School of Earth and Space Sciences,Peking University,Beijing 100871,China;Petroleum Exploration and Production Research Institute,SINOPEC,Beijing 102206,China;Ordos Research Institute of Energy,Peking University,Ordos,Inner Mongolia 017010,China)
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
2024年第5期1502-1510,共9页
Oil & Gas Geology
基金
国家自然科学基金项目(42090025)
国家重点研发计划项目(2019YFA0708504)。
关键词
清洁能源
碳中和
天然氢气
氢气勘探
马里气田
陶德尼盆地
非洲
clean energy
carbon neutrality
natural hydrogen
hydrogen exploration
Mali gas field
Taoudeni Basin
Africa
