High-pressure plunger pump skid-mounting device for oilfield water injection

Abstract

The invention relates to the field of oilfield water injection, and aims to provide a high-pressure plunger pump skid-mounting device for oilfield water injection. The high-pressure plunger pump skid-mounting device for oilfield water injection comprises a plunger pump unit fixedly connected onto a skid-mounting chassis, a plunger pump standby unit, an adaptive pipeline thereof, and an anti-explosion electric control cabinet, wherein the adaptive pipeline comprises a liquid inlet pipeline and a liquid outlet pipeline; the liquid inlet pipeline is provided with a liquid inlet main valve, a filter, a plunger pump control valve and a low-pressure pneumatic cut-off valve; high-pressure check valves are arranged on outlet pipelines of the plunger pump standby unit and the plunger pump unit; a pressure transmitter, a pressure gage and a first temperature transmitter are arranged on the liquid outlet pipe; and the anti-explosion electric control cabinet is connected with the low-pressure pneumatic cut-off valve, the plunger pump unit, the plunger pump standby unit, the pressure transmitter and the first temperature transmitter through leads. The plunger pump skid-mounting device is simplein structure, low in cost, capable of monitoring the pipeline temperature and the pressure in real time and conveniently and safely providing high-pressure water injection, and suitable for places with oilfields requiring water injection.

Description

technical field [0001] The invention relates to the field of oilfield water injection, in particular to a high-pressure plunger pump skid-mounted device for oilfield water injection. Background technique [0002] After the oil field is put into development, with the increase of production time, the energy of the oil layer itself will be continuously consumed, resulting in a continuous drop in the pressure of the oil layer, a large amount of degassing of the underground crude oil, an increase in the viscosity, a great reduction in the production of the oil well, and even the stop of spraying and production, resulting in underground A large amount of dead oil remains and cannot be recovered. In order to make up for the underground deficit caused by the extraction of crude oil, maintain or increase the pressure of the reservoir, achieve high and stable oil production, and obtain a high recovery rate, it is necessary to inject water into the oil field. For large-scale oilfield ...

AI Technical Summary

Problems solved by technology

Due to the high pressure and water quality requirements for water injection, scattered oilfield surface engineering, less environmental damage, and convenient traffic requirements, the prefabricated house has many defects such as more consumables, low utilization rate, difficult disassembly, and long construction period.

In addition, the oil field is often faced with a high temperature and high pressure working environment during the mining process. The plunger pump will have defects such as loud noise and easy failure after working for a long time, which will affect the work progress; and the pressure and temperature instruments of the existing prefabricated houses require manpower for a long time. Check, the valve cannot be quickly controlled when a dangerous situation occurs, and the function of early warning and response to the dangerous situation is lacking

And because the medium pressure required for water injection is high, the vibration reduction and filtration of the equipment are difficult problems

These problems lead to unstable or unsafe operation of the equipment

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