摘要
根据气井防砂砾石的粒径构成特征及完井防砂砾石充填是多种粒径砾石混合而成的堆积碎散性特征,通过剖析高压充填条件下混合粒径砾石堆积的排列结构,建立砾石堆积孔隙直径结构理论模型,推导出计算砾石堆积孔隙直径尺寸的公式。同时,通过理论计算分析了砾石颗粒的粒径比对砾石堆积孔隙直径尺寸的定量影响规律,为水合物试采井防砂砾石粒径的选择提供了理论依据。
According to the characteristics of particle size distribution of sand control gravel in gas well,and completion sand control gravel has fragmental characteristics with a variety gravel of particle sizes mixed. By analyzing permutation structure of the mixture particle size of gravel under high pressure filling condition,a theoretical model was established for pore diameter structure of gravel accumulation,then which was used to derive the formula for calculating the diameter of gravel accumulation. At the same time,for the size ratio of gravel particles to gravel diameter,the quantitative influence law was analyzed by theoretical calculation,which provided a theoretical basis for the selection of sand gravel diameter for hydrate production test wells.
作者
何计彬
余莉
叶成明
李小杰
HE Ji-bin;YU Li;YE Cheng-Ming;LI Xiao-Jie(Key Laboratory for Geological Environmental Monitoring Technology of the Ministry of Land and Resources;Center for Hydrogeology and Environmental Geology, China Geological Survey Hebei , Baoding 071051, China;Institute of Architecture and Engineering, Hebei University , Baoding 071002, China)
出处
《科学技术与工程》
北大核心
2018年第14期116-120,共5页
Science Technology and Engineering
基金
中国地质调查局水文地质环境地质调查中心海域天然气水合物资源试采工程实施项目
河北省教育厅青年拔尖项目(BJ2018046)
河北省高等学校科学技术研究项目(QN2017308)资助
关键词
气井防砂
砾石粒径
砾石堆积
孔隙直径
gas well sand control gravel particle size gravel accumulation pore diameter
