发明名称 Automatic chemical stick loader for wells and method of loading
摘要 An automatic chemical stick loader apparatus for gas wells, including a storage and dispensing cabinet at ground level, for sequentially feeding sticks therefrom, a launch tube for sequentially receiving sticks and elevating them to the top of a well head, and a stick loader atop the well for receiving a stick from the launch tube, dropping the stick into a chamber, pressure isolating the chamber and pressure equalizing it with well pressure, and dropping the stick into the well. The apparatus is controlled by an electronic controller which may be solar powered. The apparatus is operated by well gas, the pressure thereof being regulated down to 20 psi or so.
申请公布号 US6478089(B2) 申请公布日期 2002.11.12
申请号 US20010810165 申请日期 2001.03.19
申请人 ALVES LEE;SHADE KENNITH 发明人 ALVES LEE;SHADE KENNITH
分类号 E21B33/068;E21B37/06;(IPC1-7):E21B37/06 主分类号 E21B33/068
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