Automatic blending and controlling system of oil well binary composite modifying and flooding agent

Abstract

The invention discloses an automatic blending and controlling system of an oil well binary composite modifying and flooding agent, and relates to an oil well controlling system. The system is composed of a high-pressure water intake pipe system, a polymer feeding device, a crosslinking agent feeding device and an automatic control part, wherein a high-pressure water intake pipeline (1) is sequentially provided with a manual stop valve (2), an electric regulating valve (3), an electromagnetic flow rate meter (4) and a jet device (5); the polymer feeding device consists of a polymer storage tank (9), a spiral feeder (12) and a dry powder hopper (14); the crosslinking agent feeding device consists of a crosslinking agent storage tank (15), a metering pump (18) and a crosslinking agent hopper (19); the automatic control system consists of a man-machine interface unit, a central control unit and a detection unit. The system closes the water injection pipeline and adjusts the water intake flow rate automatically, feeds polymers and crosslinking agent materials automatically, meters automatically and controls the medicine charging time automatically, and achieves oil well intelligent operation and management.

Description

technical field [0001] The invention relates to an oil well control system, in particular to an oil well binary compound control and displacement agent automatic deployment control system. Background technique [0002] During the water injection development process of an oil well, water moves in the reservoir along the path of least resistance, resulting in a decrease in water injection recovery efficiency and an increase in produced water. Therefore, the technology of water plugging and profile control has always been an important technical measure for improving oil recovery, stabilizing oil production and controlling water in oilfields. In order to improve the production stimulation effect of conventional water shutoff and profile control, deep water control and flooding technology is produced by organically combining water injection, water shutoff and profile control on the overall scale of reservoir development. This technology uses partially hydrolyzed polyacrylamide g...

AI Technical Summary

Problems solved by technology

At present, the deployment of the displacing agent mainly relies on manual operation, and there are the following main problems: when preparing the displacing liquid, the dosing time and dosing amount are all controlled by humans, and the subjective error is relatively large; when manually dosing, the materials are concentrated at one time Adding is not conducive to the uniform dispersion and mixing of materials in water; the viscosity of materials in the tank caused by the way of adding drugs changes greatly, which may easily cause problems such as damage to the agitator blades and transmission gears, low stirring efficiency, and long stirring time; labor intensity Big, high labor cost

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