Automatic water power pressure adjustment system

Abstract

The invention belongs to the technical field of oil exploitation equipment, and particularly relates to an automatic water power pressure adjustment system which is used for injecting water into oil wells. The automatic water power pressure adjustment system comprises a water injection system and an oil line control system; the water injection system comprises a water pumping system, a working gap opening and closing control system, a pressure adjustment system and an injection system which are connected in turn; the oil line control system comprises an oil pumping system, an energy storage system, a pressure control system, a pilot system, a hydraulic control system and an oil storage system; the oil pumping system, the pilot system and the hydraulic control system are connected with one another sequentially; the energy storage system and the pressure control system are arranged between the oil pumping system and the pilot system; and the oil pumping system, the energy storage system and the pilot system are communicated with the oil storage system respectively. In the automatic water power pressure adjustment system, the oil line control system is used for automatically controlling the water injection system, so that the water injection system has stronger reliability and stability during water injection of high and low pressure wells; therefore, the service life of machines is prolonged, the energy consumption is reduced and the water injection effect is better.

Description

technical field [0001] The invention belongs to the technical field of oil exploitation equipment, and in particular relates to a hydraulic automatic pressure regulating system for oil well water injection. Background technique [0002] In the process of oil production in an oil field, in order to get crude oil out of the gaps in the underground rock formation, it is often necessary to inject water into the oil well. The pressure in different oil wells is different, high and low, so the water injection pressure required during water injection is also different. High pressure wells need higher pressure to achieve water injection, while low pressure wells do not need excessive pressure. The traditional method for oil well water injection is to use high-pressure pumps to inject water into high-pressure wells. In order to enable high-pressure pumps to inject water into low-pressure wells at the same time, it is usually done by throttling valves and controlling the flow rate. In...

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Problems solved by technology

However, this technology realizes the use of water pressure to pressurize the oil circuit through the water-oil energy converter, and then controls the bridge-type plug-in valve through the oil circuit pressure conversion to realize the conversion of the inlet and outlet water channels. Road pressurization, but there are big defects: first, the patented technical solution does not disclose a complete technical solution for controlling the oil circuit. In practice, the continuous cycle work of the control oil circuit cannot be realized according to the description of this patent; Water and oil power fluid not only cause waste, but also cause pollution to the environment. Third, it cannot provide stable and stable control oil pressure, resulting in unstable water injection work. Fourth, the water medium is easy to corrode the pipeline, affecting the normal work of the oil circuit

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