Hydraulic balance automatic control system for reciprocating type boosting water injection pump and adjusting method of system

Abstract

The invention discloses a hydraulic balance automatic control system for a reciprocating type boosting water injection pump and an adjusting method of the system. The system comprises a suction pressure detection device, a balance pressure detection device and a discharge pressure detection device which are mounted on a reciprocating type boosting water injection pump pipeline, wherein a regulating valve used for regulating suction pressure or balance pressure is mounted between the balance pressure detection device and the discharge pressure detection device. By means of monitoring for the suction pressure, the balance pressure and discharge pressure in the pump body, change of the pressure in the pipeline can be acquired at any time, by means of timely regulation for the regulating valvelocation, the hydraulic balance system enters a balance mode again, the phenomenon of the hydraulic balance system imbalance of the reciprocating type boosting water injection pump due to various reasons is effectively eliminated, besides, when the hydraulic imbalance condition occurs, the balance relation can be established again timely and effectively, the continuous operation of the equipmentis guaranteed, the failure rate caused by abnormal wear of the equipment is eliminated, and long-term stable operation of the equipment is realized.

Description

technical field [0001] The invention relates to the technical field of oil pump control, in particular to a hydraulic balance automatic control system of a reciprocating booster injection pump and an adjustment method thereof. Background technique [0002] In oil exploration, formation water injection is the main measure to stabilize oil production, and booster water injection pump has become an important equipment for oil field water injection and production maintenance. The continuous and stable operation of the booster injection pump plays a vital role in the water injection process. [0003] The hydraulic balance system of the reciprocating booster injection pump has strict requirements on the suction pressure and discharge pressure in the field practical application. The change of any one of the two parameters will cause the hydraulic balance of the booster injection pump to break, and the oil well provided on site The suction pressure and discharge pressure of pressur...

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Problems solved by technology

[0003] The hydraulic balance system of the reciprocating booster water injection pump has strict requirements on the suction pressure and discharge pressure in the actual application on site. Any change in any of the two parameters will cause the hydraulic balance of the booster water injection pump to break, and the oil wells provided on site The suction pressure and discharge pressure of pressurized water injection are only a reference value. Factors such as the complexity and uncontrollability of the formation working conditions make it difficult for the selected equipment to match the actual application conditions on site, resulting in the bearing force of the plunger of the equipment. Changes will cause severe wear of the entire crank-link mechanism of the equipment, increase the replacement cycle of non-wearable parts of the equipment, increase manpower and material resources, and affect oil production and water injection.

Moreover, as the water injection volume and water injection pressure of the oil well increase day by day, the discharge pressure of the booster water injection pump gradually increases, which also becomes a major hidden danger of breaking the original hydraulic balance.

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