垂直气井气流携砂实验分析  

Gas-flow Sand Carrying of Vertical Gas Well

作　　者：王修武[1] 谢希[1] 王新欣[2] 汪潇[1] 

机构地区：[1]长江大学石油工程研究生学院,湖北荆州434023 [2]中国地质大学研究生院,湖北武汉430000

出　　处：《天然气技术与经济》2012年第2期42-44,79,共3页Natural Gas Technology and Economy

基　　金：国家大学生创新性实验计划项目(081048915)"天然气气井携砂临界参数的确定"

摘　　要：在气井开采过程中,为了避免因气流过大导致井筒中的砂粒对井口设备产生严重的冲蚀、磨蚀损坏,同时又要保证砂粒能够全部被携带出井口而不至于堆积在井底造成砂堵油管等严重事故,确定垂直气井气流携砂模型的准确性至关重要。借助自发研制的垂直井筒携砂实验装置,实验分析研究了不同气量和压力下气流携砂状况。根据实验分析得出,携砂临界参数的理论计算结果与实测数据平均误差在5%以内,理论计算误差满足工程计算精度要求。During gas producing,to prevent some wellhead facilities from severe sand abrasion due to high-speed gas flow within wellbore,and to ensure all sand to be taken out in order to avoid tubing plugging,are so important to determine the accuracy of gas-flow sand carrying model for vertical gas well.Based on the experimental facilities of sand carrying developed independently,this paper analyzes the condition of sand carrying under different gas volumes and pressures.Result shows that the average error between theoretical calculation and actual data of critical parameter is no more than 5 %。 The theoretical error can meet the demands of accuracy for engineering calculation.

关 键 词：垂直气井 气砂两相流 气流携砂 临界参数 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程]