Frequency-conversion speed regulating device and frequency-conversion speed regulating method applied to oilfield water injection system

A technology of variable frequency speed regulation and oilfield water injection, which is applied in earthwork drilling, liquid variable capacity machinery, pump control, etc. It can solve the problems that the efficiency of the water injection system in the oilfield does not meet the standard requirements, so as to prolong the pump inspection period and avoid impact , the effect of saving investment

Inactive Publication Date: 2013-05-15
刘旭
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Problems solved by technology

However, as the difficulty of oilfield development increases, the efficiency of water injection systems in most oilfields does not meet the standard requirements

Method used

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  • Frequency-conversion speed regulating device and frequency-conversion speed regulating method applied to oilfield water injection system

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Embodiment

[0023] Such as figure 1 As shown, the frequency conversion speed regulating device applied to the oil field water injection system involved in the present invention is mainly composed of a water injection pump 1, a pressure sensor 2 connected to the water injection pump 1, a frequency conversion speed regulator 3, and a pressure sensor 2 and a frequency conversion speed regulation device. The central control processor 4 that all devices 3 are connected to constitutes.

[0024] The central control processor 4 is a microcomputer controller, equipped with a single-chip microcomputer or a single-board microcomputer, and its function is to analyze and process the pressure signal of the pressure sensor according to a pre-programmed program, and then output the signal to control the output of the frequency converter. current frequency.

[0025] The water injection pump 1 is connected with the water feeding pump 5 .

[0026] The water feeding pump 5 is connected to the water injecti...

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Abstract

The invention discloses a frequency-conversion speed regulating device applied to an oilfield water injection system. The frequency-conversion speed regulating device applied to the oilfield water injection system is mainly composed of a water injection pump (1), a pressure sensor (2), a frequency-conversion speed regulator (3) and a central control processor (4), wherein the pressure sensor (2) and the frequency-conversion speed regulator (3) are respectively connected with the water injection pump (1), and the central control processor (4) is connected with the pressure sensor (2) and the frequency-conversion speed regulator (3). The invention further discloses a frequency-conversion speed regulating method based on the frequency-conversion speed regulating device. The frequency-conversion speed regulating device achieves the aims of conducting constant voltage water injection, saving energy and reducing consumption, improving automatic management level, and saving a large amount of maintenance fund, a frequency-conversion speed regulating system can enable a machine pump to achieve soft boot under the condition of load, and the frequency-conversion speed regulating device effectively restrains and prevents power grids and mechanical equipment from being impacted by big electric current, prolongs pump inspection period, and greatly reduces cost of pump inspection.

Description

technical field [0001] The invention relates to a frequency conversion speed regulation device and a frequency conversion speed regulation method applied to an oilfield water injection system. Background technique [0002] Water injection is a very important production method in oilfield development. It can effectively replenish formation energy and play an active role in improving oil recovery and ensuring high and stable production in oilfields. However, water injection itself is also a large energy consumer. The power consumption of the water injection system is huge, accounting for about 33% to 56% of my country's oilfield production electricity consumption. Moreover, the energy consumption of water injection will rise sharply with the rise of the comprehensive water content of the oil field. Therefore, the energy saving and consumption reduction of the water injection system is of great significance for reducing the production cost of the oil field. According to surve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06E21B43/20
Inventor 刘旭
Owner 刘旭
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