System and method for obtaining indicator diagram of pumping unit
A technology of acquisition system and pumping unit, which is applied to the automatic control system of drilling, power measurement, earthwork drilling and production, etc., and can solve problems such as low accuracy and rope damage
Active Publication Date: 2020-06-02
BEIJING CNTEN SMART TECH CO LTD
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Problems solved by technology
But in actual use, the rope is often damaged due to repeated use
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] Such as figure 1 As shown, the system for acquiring the dynamometer diagram of the pumping unit according to the embodiment of the present invention includes a load sensor 10 , an acceleration sensor 20 , a controller 30 and a host computer 40 . Wherein, the load sensor is used to collect the load of the polished rod of the pumping unit; the acceleration sensor 20 is arranged on the sucker rod of the pumping unit, and is used to collect the acceleration...
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Abstract
The invention provides a pumping unit indicator diagram obtaining system and method. The system comprises a load sensor for acquiring loads of a pumping unit polish rod, an acceleration sensor for acquiring accelerations of a pumping rod of a pumping unit, a controller for receiving the loads of the pumping unit polish rod and the accelerations of the pumping rod acquired by the acceleration sensor and calculating displacements of the pumping rod according to the accelerations of the pumping rod acquired by the acceleration sensor, and an upper computer for receiving the loads of the pumping unit polish rod and the displacements of the pumping rod through the communication connection with the controller and generating indicator diagrams according to the loads of the pumping unit polish rodand the displacements of the pumping rod. The pumping unit indicator diagram obtaining system and method can conveniently and accurately obtain the displacement data in the pumping unit indicator diagrams, and can accurately reflect the working conditions of the pumping unit through the obtained indicator diagrams.
Description
technical field [0001] The invention relates to the technical field of oil pumping units, in particular to a system for acquiring an indicator diagram of an oil pumping unit and a method for acquiring an indicator diagram of an oil pumping unit. Background technique [0002] The graphic that reflects the changing law of the suspension point load of the pumping unit with its displacement is called the polished rod (ground) dynamometer diagram, which is a closed curve measured by the dynamometer during one pumping cycle of the pumping unit. At present, the moving distance of the oil rod is mostly measured by the rope moving with the sucker rod. But in actual use, the rope is often damaged due to repeated use. In order to solve the above technical problems, the related technology uses infrared lasers for ranging, but the infrared lasers have problems such as low accuracy. Contents of the invention [0003] In order to solve the above technical problems, the present inventio...
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IPC IPC(8): E21B47/00E21B44/04G01L3/24G06Q50/02
CPCE21B44/04E21B47/00G01L3/247G06Q50/02
Inventor 王力伟王星刘劲松
Owner BEIJING CNTEN SMART TECH CO LTD