The present invention provides a well strainer (10) having an outer support layer (14) between the protective layer (15) and the filter medium (13). A method of manufacturing a well screen (10) is also provided, including drawing a bottom (12) of a well screen filter medium (10) with a cylindrical filter medium (13) with an end opening. In addition, a method for welding a seam in a layer of a well screen (10) by series resistance welding is presented.
【技术实现步骤摘要】
【技术保护点】
1.一种井滤网包括:一层过滤层;一层环绕过滤层的外部支撑层;及一层环绕外部支撑层的保护层;其中该外部支撑层布置成使保护层与过滤层间隔开,并阻止保护层向着过滤层破损。
【技术特征摘要】
...
【专利技术属性】
技术研发人员:D·A·克卢格,G·J·多塞特,
申请(专利权)人:科姆普利申制品私人有限公司,
类型:发明
国别省市:SG
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。