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可上九天揽月 可下五洋采“冰”——我国首次海域可燃冰试采成功

2017-05-19 08:09:08   新华网

南海海域是我国可燃冰最主要的分布区,全国可燃冰资源储存量约相当于1000亿吨油当量,其中有近800亿吨在南海。

试采现场指挥部地质组组长陆敬安说,勘探显示,神狐海域有11个矿体、面积128平方公里,资源储存量1500亿立方米,相当于1.5亿吨石油储量,“成功试采意味着这些储量都有望转化成可利用的宝贵能源”。

一次点火,一次成功这一比率即使放到已经非常成熟的海洋石油和天然气开采领域也堪称靓丽,而这一成功的背后,是我国海洋地质工作者在天然气水合物开发上的奋起直追。

和国际上早在上个世纪60年代就开始勘探、研究可燃冰相比,我国的可燃冰研究起步要晚到1998年,但中国科技工作者只用了不到20年就完成了从空白到赶超的全过程。

回顾这一历程,试采现场指挥部办公室主任邱海峻用“快马加鞭”“奋发图强”形容可燃冰开采的“中国速度”。他介绍说,在1998年立项后,1999年我国就开始了南海和陆地冻土区的可燃冰调查工作,2007年就在神狐海域钻获可燃冰,这使得我国成为继美国、日本、印度之后,第四个通过国家级研发计划在海底钻获可燃冰的国家。

2015年,我国科技工作者在神狐海域准确定位了两个可燃冰矿体。2016年,地质调查工作人员围绕试采在神狐海域开展钻探站位8个,全部发现可燃冰。

“2016年3月,我们正式开始准备可燃冰试开采,当时定下的开钻时间为2017年3月28日,就是说自开始准备至开钻仅有一年时间,如果不是之前持续拼搏积累下海量的地质数据,就不可能按时完成任务。”邱海峻说。

今年5月10日9时20分,神狐海域可燃冰试采开始,5小时32分钟后,试采点火成功。截至18日,经试气点火,本次试采已连续产气超过一周,最高产量3.5万立方米/天,平均日产超1.6万立方米,累计产气12万立方米,天然气产量稳定,甲烷含量最高达99.5%,完成预定目标,试采取得圆满成功。

18日上午,国土资源部部长姜大明在“蓝鲸一号”上向世界宣布:中国在神狐海域的天然气水合物试采成功!

“在豆腐上打铁、用金刚钻绣花”

和海洋石油、天然气相比,海域可燃冰的开采就一个字:难。

难点也是一个字:软。

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