李彦龙, 刘乐乐, 刘昌岭, 孙建业, 业渝光, 陈强. 天然气水合物开采过程中的出砂与防砂问题[J]. 海洋地质前沿, 2016, 32(7): 36-43. DOI: 10.16028/j.1009-2722.2016.07005
    引用本文: 李彦龙, 刘乐乐, 刘昌岭, 孙建业, 业渝光, 陈强. 天然气水合物开采过程中的出砂与防砂问题[J]. 海洋地质前沿, 2016, 32(7): 36-43. DOI: 10.16028/j.1009-2722.2016.07005
    LI Yanlong, LIU Lele, LIU Changling, SUN Jianye, YE Yuguang, CHEN Qiang. SANDING PREDICTION AND SAND-CONTROL TECHNOLOGY IN HYDRATE EXPLOITATION:A REVIEW AND DISCUSSION[J]. Marine Geology Frontiers, 2016, 32(7): 36-43. DOI: 10.16028/j.1009-2722.2016.07005
    Citation: LI Yanlong, LIU Lele, LIU Changling, SUN Jianye, YE Yuguang, CHEN Qiang. SANDING PREDICTION AND SAND-CONTROL TECHNOLOGY IN HYDRATE EXPLOITATION:A REVIEW AND DISCUSSION[J]. Marine Geology Frontiers, 2016, 32(7): 36-43. DOI: 10.16028/j.1009-2722.2016.07005

    天然气水合物开采过程中的出砂与防砂问题

    SANDING PREDICTION AND SAND-CONTROL TECHNOLOGY IN HYDRATE EXPLOITATION:A REVIEW AND DISCUSSION

    • 摘要: 国外试采经验和我国前期勘探结果均表明,出砂问题是制约水合物资源有效开发的关键因素,然而目前专门针对水合物储层出砂-防砂体系的研究尚属空白。为了配合我国水合物试采及未来商业化开采的需要,建立水合物井出砂预测理论和防砂技术理论体系迫在眉睫。水合物开采过程中的出砂过程与水合物地层的渗流场、温度场和各相饱和度空间分布等的演化过程密切相关,属于多相相变环境中的动态变化过程,因此,水合物储层出砂预测技术和防砂技术面临新的挑战。在总结水合物开采过程中动态相变条件下影响地层出砂因素的基础上,探讨了目前常规油气井出砂预测技术及防砂技术、稠油出砂冷采技术、适度防砂技术对水合物井出砂治理的启示及需要解决的关键问题,为后续研究和工程应用提供参考。

       

      Abstract: Both production test and exploration show that sanding is one of the crucial problems that restricts the effective production of natural gas hydrate. However, these topics haven't been studied systematically by predecessors. Systematic sanding prediction, sand control technology and consequent sand treatment researches are essential for ensuring the pilot hydrate production, as well as commercial production in the near future. Sanding procedure during hydrate dissociation or dissolution is coupled with formation of seepage flow field, temperature field and saturation distribution of each component. Therefore, sanding treatment for hydrate reservoir is a dynamic heterogeneous phase change and has much more challenges when compared with conventional oil field sanding treatment. Sand-control experiences during hydrate production and corresponding problems were reviewed in this paper, and the factors that affect sanding are analyzed based on field performance. Sanding prediction methods, sand-control technology, heavy oil cold recovery method and reasonable sand-control technology for conventional oil and gas resource may have significant inspiration for sanding treatment, therefore, comprehensive research should be carried out to ensure the safe, effective and economical production of natural gas hydrate of hydrate sediments. The research results may provide some guidance both for the next research and field design.

       

    /

    返回文章
    返回