150V voltage stabilizing direct current power supply circuit in method of increasing recovery efficiency of oil field by direct current field

Abstract

The invention relates to a 150V voltage stabilizing direct current power supply circuit in a method of increasing recovery efficiency of an oil field by a direct current field. A transformer of the 150V voltage stabilizing direct current power supply circuit in the method of increasing recovery efficiency of the oil field by the direct current field is serially connected with a fuse, the fuse is connected with a bridge type rectifier circuit, two ends of the bridge type rectifier circuit are connected in parallel with a first capacitor, one end of the first capacitor is connected with a first-stage voltage limiting circuit, the other end of the first capacitor is grounded, the first-stage voltage limiting circuit is connected with the input end of a voltage stabilizer, the output end of the voltage stabilizer is connected with a second-stage voltage stabilizing circuit, a diode with a reversal protection function is connected between the first-stage voltage limiting circuit and the second-stage voltage limiting circuit, the output end of the second-stage voltage limiting circuit is connected with a third capacitor, the other end of the third capacitor is grounded, and a voltage stabilizing diode is connected between a base electrode end of a second-stage voltage limiting triode of the first-stage voltage limiting circuit and the output end of the second-stage voltage limiting circuit. The 150V voltage stabilizing direct current power supply circuit has higher voltage stabilizing precision, and realizes a required working state.

Description

1. Technical field: [0001] The invention relates to a circuit for outputting a stable direct-current electric field, in particular to a 150V stabilized direct-current power supply circuit in a method for improving oil recovery by a direct-current electric field. 2. Background technology: [0002] The use of DC electric field to enhance oil recovery is a new oil recovery technology in recent years. Since the shortage of crude oil resources is a major problem faced by countries all over the world, enhanced oil recovery is an effective way to alleviate this problem. However, as the medium and high permeability reservoirs have successively entered the high water cut period, fracture-karst cave type low permeability reservoirs have become the main bottleneck of oil production. Using conventional oil recovery methods to deal with fracture-karst cave type low-permeability oil layers, the oil recovery rate is low, and nearly 50-70% of the crude oil cannot be recovered. Therefore, ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a 150V regulated DC power supply circuit in the DC electric field enhanced oil recovery method, which is used to solve the problem of low crude oil recovery in the high water cut period of current oil recovery

Images