Pumping unit polish rod displacement testing method and testing device
A technology of a testing device and a testing method, which is applied in the direction of measuring devices, fluid devices, instruments, etc., can solve the problems of complex structure and high failure rate, and achieve the effect of small testing errors.
Active Publication Date: 2014-09-03
HUBEI JIANGHAN GASOLINEEUM INSTR & METER
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Problems solved by technology
[0005] The object of the present invention is to provide a method and a testing device for the displacement test of the polished rod of the pumping unit, which is used to solve the problems of the existing displacement test method of the pumping unit with complex structure and high failure rate
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[0020] The present invention is described in detail below in conjunction with accompanying drawing: the used device of the present invention and circuit board are all existing, buy from the market and obtain.
[0021] Such as figure 1 As shown: the displacement test device of the polished rod of the pumping unit is composed of a housing 5, an air pressure sensor 1, a data processing circuit board 2, a data output circuit board 3 and a power supply circuit 4, and is characterized in that: the air pressure sensor 1, the data processing circuit board 2, The data output circuit board 3 and the power supply circuit 4 are respectively installed in the casing 5, and the air pressure sensor 1 is connected to the data processing circuit board 2, the data processing circuit board 2 is connected to the data output circuit board 3, and the power supply circuit 4 provides power for the whole device . The invention is installed on the rope hanger of the pumping unit, so that the air pressu...
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The invention relates to a pumping unit polish rod displacement testing method and testing device. The pumping unit polish rod displacement testing device is mounted on a beam hanger of a pumping unit and used for detecting changes of barometric pressure within the reciprocating running range of a polish rod of the pumping unit in real time to obtain a group of dynamic data corresponding to the changes of the barometric pressure, and the displacement of the polish rod of the pumping unit is calculated according to the maximum difference of the changes of the barometric pressure within the running range of the polish rod. According to the structure of the testing device, a barometric sensor, a data processing circuit board, a data output circuit board and a power circuit are installed in a shell, the barometric sensor is connected with the data processing circuit board, the data processing circuit board is connected with the data output circuit board, and the power circuit provides power. The pumping unit polish rod displacement testing device is novel in structure and convenient to operate. The pumping unit polish rod displacement testing device thoroughly abandons a complex mechanical structure and a stay wire of a traditional displacement testing device, and the testing method is a brand new displacement testing method.
Description
technical field [0001] The invention provides a novel sensor for testing the displacement of a polished rod of a pumping unit, and in particular relates to a method and a device for testing the displacement of a polished rod of a pumping unit. Background technique [0002] The test of the indicator diagram of the pumping unit is an important means in the daily management of the oil well. According to the measured indicator diagram, the working condition of the pumping unit can be understood, so that the engineering and technical personnel can take other measures in time to ensure the stable production of the oil well. . [0003] The dynamometer diagram of the pumping well is a closed graph formed by the suspension point load of the pumping unit with the displacement of the polished rod. From the graph, the maximum and minimum loads, strokes, stroke times and other data can be known. [0004] At present, there are four test methods for the displacement stroke and stroke time...
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IPC IPC(8): G01B13/02
Inventor 张水平
Owner HUBEI JIANGHAN GASOLINEEUM INSTR & METER