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公开(公告)号:US5237863A
公开(公告)日:1993-08-24
申请号:US802799
申请日:1991-12-06
Applicant: Cleon L. Dunham
Inventor: Cleon L. Dunham
CPC classification number: F04B49/02 , E21B47/0006 , E21B47/0008 , F04B2201/12
Abstract: A method for monitoring a rod pumped well and detecting when the well is pumped off. The method utilizes the measured rod load and position for each stroke to set load limits and position limits. The load limits and position limits are set as predetermined percentages of the difference between the maximum and minimum measured rod load and position. The area within the thus determined load and position limits is determined to detect when the well has pumped-off.
Abstract translation: 一种用于监测杆抽取井并检测井何时抽出的方法。 该方法利用测量的杆载荷和每个行程的位置来设定载荷极限和位置限制。 负载限制和位置限制设置为最大和最小测量的杆载荷和位置之间的差的预定百分比。 确定如此确定的负载和位置限制内的区域以检测井何时抽出。
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公开(公告)号:US5314016A
公开(公告)日:1994-05-24
申请号:US64603
申请日:1993-05-19
Applicant: Cleon L. Dunham
Inventor: Cleon L. Dunham
CPC classification number: F04B47/02 , E21B47/0008 , F04B49/065 , F04B2201/0201 , F04B2201/121 , F04B2207/043 , F04B2207/046
Abstract: A method for controlling a rod pumped well to limit the amount of time the pumping system is subject to fluid pound. The method monitors various pumping system parameters and shuts the pumping system down just before pump-off occurs.
Abstract translation: 一种用于控制泵送井的方法,以限制泵送系统经受流体磅的时间量。 该方法监测各种泵送系统参数,并在泵送发生之前关闭泵送系统。
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