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天然气水合物储层超声雾化防砂排水采气实验研究

罗强, 刘志辉, 宁伏龙, 窦晓峰, 刘志超. 2022. 天然气水合物储层超声雾化防砂排水采气实验研究. 钻探工程, 49(3): 23-28. doi: 10.12143/j.ztgc.2022.03.003
引用本文: 罗强, 刘志辉, 宁伏龙, 窦晓峰, 刘志超. 2022. 天然气水合物储层超声雾化防砂排水采气实验研究. 钻探工程, 49(3): 23-28. doi: 10.12143/j.ztgc.2022.03.003
LUO Qiang, LIU Zhihui, NING Fulong, DOU Xiaofeng and LIU Zhichao, . 2022. Sand control and water drainage by ultrasonic atomization for gas recovery from hydrate reservoirs. DRILLING ENGINEERING, 49(3): 23-28. doi: 10.12143/j.ztgc.2022.03.003
Citation: LUO Qiang, LIU Zhihui, NING Fulong, DOU Xiaofeng and LIU Zhichao, . 2022. Sand control and water drainage by ultrasonic atomization for gas recovery from hydrate reservoirs. DRILLING ENGINEERING, 49(3): 23-28. doi: 10.12143/j.ztgc.2022.03.003

天然气水合物储层超声雾化防砂排水采气实验研究

  • 基金项目:

    国家重点研发计划项目“天然气水合物开采过程中井周储层动态响应行为与控制”(编号:2018YFE0126400);国家自然科学基金资助项目“流固耦合作用下南海典型水合物储层力学劣化规律与机理研究”(编号:42006182);广东省海洋经济发展(海洋六大产业)专项资金项目“南海泥质粉砂天然气水合物储层开采流固产出预测与控制技术研究”(编号:粤自然资合[2020]047号)

详细信息
    作者简介: 罗强,男,汉族,1988年生,地质工程专业,博士在读,从事非常规能源研究,湖北省武汉市鲁磨路388号,luoqiang2020@outlook.com。
    通讯作者: 宁伏龙,男,汉族,1977年生,教授,地质工程专业,博士,从事大洋钻探与天然气水合物勘探与开发研究工作,湖北省武汉市鲁磨路388号,nflzx@cug.edu.cn。
  • 中图分类号: P634;TE3

Sand control and water drainage by ultrasonic atomization for gas recovery from hydrate reservoirs

More Information
  • 天然气水合物储层具浅埋藏、弱固结、低渗透、高泥质、非均质等特点,钻采过程中易出现严重的出砂问题,是制约天然气水合物安全高效开采的“瓶颈”之一。现有的天然气水合物储层防砂技术主要来源于常规油气开采中常用的防砂方法,防砂精度控制和稳产增产矛盾突出。为此,本文提出了一种天然气水合物储层超声雾化防砂排水采气方法,配合挡砂介质在有效防住10 μm以上砂的同时,将水雾化成5 μm左右的小水滴产出,降低水的携砂能力并加速水气产出,进而实现连续排水产气。基于该方法搭建了简易实验模拟评价装置,进行了初步的模拟实验。实验结果表明该方法具有一定的可行性,水气可以通过雾化片的锥孔不断产出。但是由于储层砂中还存在大量直径小于雾化片锥孔直径的泥质成分,雾化装置还需针对泥质成分的存在做进一步优化,否则泥质成分将堵塞在雾化片锥孔附近降低雾化片的振荡频率,造成排水产气的中止。这些初步的工作可以为天然气水合物储层防砂增产提供新的思路。
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出版历程
收稿日期:  2021-08-28
修回日期:  2022-05-06

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