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海域天然气水合物保压取心钻具的研制与试验

卢春华, 张涛, 徐俊, 乔梦迪, Blinov.P.A, 张思敏, Merzliakov.M.U. 2023. 海域天然气水合物保压取心钻具的研制与试验. 钻探工程, 50(6): 18-27. doi: 10.12143/j.ztgc.2023.06.003
引用本文: 卢春华, 张涛, 徐俊, 乔梦迪, Blinov.P.A, 张思敏, Merzliakov.M.U. 2023. 海域天然气水合物保压取心钻具的研制与试验. 钻探工程, 50(6): 18-27. doi: 10.12143/j.ztgc.2023.06.003
LU Chunhua, ZHANG Tao, XU Jun, QIAO Mengdi, Blinov.P.A, ZHANG Simin and Merzliakov.M.U, . 2023. Development and experiment of pressure core sampler for marine natural gas hydrates. DRILLING ENGINEERING, 50(6): 18-27. doi: 10.12143/j.ztgc.2023.06.003
Citation: LU Chunhua, ZHANG Tao, XU Jun, QIAO Mengdi, Blinov.P.A, ZHANG Simin and Merzliakov.M.U, . 2023. Development and experiment of pressure core sampler for marine natural gas hydrates. DRILLING ENGINEERING, 50(6): 18-27. doi: 10.12143/j.ztgc.2023.06.003

海域天然气水合物保压取心钻具的研制与试验

  • 基金项目:

    战略性国际科技创新合作重点专项“天然气水合物勘查开发技术联合研究”(编号:2018YFE0208200)

详细信息
    作者简介: 卢春华,男,汉族,1976年生,副教授,博士生导师,地质工程专业,主要研究方向为钻探工具与设备、非常规能源勘探开发,湖北省武汉市洪山区鲁磨路388号,lchct@163.com。

Development and experiment of pressure core sampler for marine natural gas hydrates

  • 天然气水合物的勘探和开发需要从地层中获取保压岩心进行地层的物化性测试、储量评估以及开采工艺等方面的研究。然而,钻探过程中,伴随温度和压力的改变,天然气水合物很容易发生分解,这给水合物钻探取心工作带来了很大的困难。为了解决天然气水合物保压取心钻具的保压可靠性问题,开展了一种新型齿轮-齿条关闭球阀式水合物保压取心钻具的研制,采用绳索打捞的提拉力驱动球阀工作。详细介绍了该保压取心钻具的结构和工作原理;计算了球阀的工作密封比压及打捞内管所需的提拉力;介绍了该保压取心钻具的室内试验和海试情况。研究表明:该水合物保压取心钻具的取心工艺简单、球阀翻转和密封性能良好、取心成功率高,各项功能和性能指标均达到了设计的要求。
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出版历程
收稿日期:  2023-05-31
修回日期:  2023-09-19

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