Pumping unit as well as control method and device for pumping unit driving motor
A technology of driving motor and control method, which is applied to earth-moving drilling, production of fluid, wellbore/well components, etc., can solve the problems of insufficient liquid supply, waste of electric energy, loss, etc., and achieve the effect of saving electric energy and avoiding electric energy waste.
Inactive Publication Date: 2017-08-25
深圳市康元电气技术有限公司
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Problems solved by technology
However, in the middle and late stages of the oil well, due to the reduction of oil reserves, it is easy to cause insufficient liquid supply. If the pumping unit still works at the power frequency state, it will inevitably waste electric energy and cause unnecessary losses.
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[0029] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0030] The present invention provides a control method of the driving motor of the pumping unit, the control method of the driving motor of the pumping unit is mainly used in the pumping unit for oil collection, and is used to solve the problem of energy waste in the oil extraction process of the pumping unit, thereby Save electricity.
[0031] refer to figure 1 , in one embodiment, the control method of the driving motor of the pumping unit includes the following steps:
[0032] Step S10, controlling the driving motor of the pumping unit to run according to the power frequency, and obtaining the current oil volume of the oil production well of the pumping unit;
[0033] Specifically, the control method for the driving motor of the pumping unit in this embodiment is to control the driving motor of the pumping unit t...
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The invention discloses a pumping unit as well as a control method and device for a pumping unit driving motor. The method comprises the following steps: the pumping unit driving motor is controlled to operate at power frequency, and current oil mass of an oil well from which the pumping unit extracts oil is acquired; when the current oil mass of the oil well from which the pumping unit extracts oil is lower than default oil mass, a threshold level matched with the current oil mass of the oil well from which the pumping unit extracts oil is determined; power supply output power, corresponding to the threshold level matched with the current oil mass of the oil well from which the pumping unit extracts oil, of the pumping unit driving motor is acquired; the acquired power supply output power of the pumping unit driving motor is set as the current power supply output power of the pumping unit driving motor. Energy waste in an oil production process of the pumping unit can be avoided, and electricity is saved.
Description
technical field [0001] The invention relates to the field of oil pumping units, in particular to a method and device for controlling a driving motor of an oil pumping unit, and an oil pumping unit. Background technique [0002] Existing pumping units are all set to run at a fixed power frequency when they leave the factory to ensure higher oil production. In the early stage of oil well exploitation, the oil storage capacity is large, the liquid supply is sufficient, and the power frequency operation is adopted, which can indeed improve the efficiency and ensure higher oil production. However, in the middle and later stages of the oil well, due to the reduction of oil reserves, it is easy to cause insufficient fluid supply. If the pumping unit still works at the power frequency state, it will inevitably waste electric energy and cause unnecessary losses. Contents of the invention [0003] The main purpose of the present invention is to provide a control method for the driv...
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Login to View More IPC IPC(8): E21B43/00
CPCE21B43/12
Inventor 余心祥
Owner 深圳市康元电气技术有限公司