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2. 发明授权

US06715556B2 Gas restrictor for horizontally oriented well pump 失效
标题翻译：用于水平定向井泵的气体限制器
公开(公告)号：US06715556B2
公开(公告)日：2004-04-06
申请号：US10244252
申请日：2002-09-16
申请人： John J Mack , Brown L. Wilson
发明人： John J Mack , Brown L. Wilson
IPC分类号： E21B4338
CPC分类号： E21B43/121
摘要： An intake assembly for a well pump restricts gas entry into the pump when the pump is located in a horizontal section of the well bore. The restrictor is located within a tubular intake housing. The intake housing has apertures for receiving the flow of well fluid. The apertures are spaced circumferentially around the housing. Once installed in the well, some of the apertures will be at higher elevations than others. The restrictor partially blocks at least one of the higher elevation apertures and opens at least one of the lower elevation apertures. The gas will be at the higher elevations, thus it is restricted from flowing in through the higher elevation aperture while the liquid freely flows into the lower elevation aperture. The restrictor may be of a buoyant material to float upward in the well fluid. The restrictor may also be open in response to contact with the casing wall.
摘要翻译：当泵位于井眼的水平部分中时，用于井泵的进气组件限制气体进入泵。限流器位于管状入口壳体内。进气壳体具有用于接收井流体流的孔。孔围绕壳体周向间隔开。一旦安装在井中，一些孔将比其他孔更高。限流器部分地阻挡较高高度孔中的至少一个并且打开至少一个较低高度孔。气体将处于较高的高度，因此在液体自由流入较低仰角的孔隙中时，气体不会流经较高的高度孔。限流器可以是浮力材料，以在井液中向上浮动。限制器也可以响应于与壳体壁的接触而打开。

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