刘乐乐,鲁晓兵,张旭辉
LIU Le-le,LU Xiao-bing,ZHANG Xu-hui
摘要:
水合物地层变形是天然气水合物开采安全性评价的关键参数。提出了考虑传热、水合物分解相变、多相渗流和地层变形4个物理效应的一维多孔介质中水合物降压分解数学模型,在验证该模型适用性之后进行了粉细砂多孔介质变形敏感性分析。基于基本假设可以得到以下结论:出口压强是影响多孔介质变形的主要因素,出口压强越小,多孔介质最终变形越大,且完成变形所需时间越长。环境温度和多孔介质绝对渗透率对多孔介质最终变形没有影响,但会改变多孔介质完成变形所需时间的长度。
中图分类号:
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