Anti-corrosion oil pipe for oil field

Abstract

The invention relates to the technical field of oil field oil well drilling, in particular to an anti-corrosion oil pipe for an oil field. The oil pipe comprises a plurality of oil field oil pipe bodies and pipeline connecting devices used for connecting every two adjacent oil field oil pipe bodies, wherein the oil field oil pipe bodies comprise outer protection pipe layers and inner conveying pipe layers, a plurality of anode zinc blocks are fixed to the inner walls of the parts, located between two annular fixing blocks, of the outer protection pipe layers, wires are connected to the anode zinc blocks, the other ends of the wires are connected to the inner conveying pipe layers, threaded sleeves penetrating the outer protection pipe layers are welded to the inner walls of the parts, located between the two annular fixing blocks, of the outer protection pipe layers and cylinders are arranged in inner threaded holes of the threaded sleeves. Through a cathode protection method of sacrificial anodes, the corrosion effect of electrochemistry of an oil material on an inner conveying pipe layer can be greatly reduced in a transportation process of the oil material, the problem that theinner layer and the outer layer of an existing oil field oil pipe are corroded at the same time is effectively solved, and the service life of the oil pipe is longer.

Description

technical field [0001] The invention relates to the technical field of oil well drilling and production in oil fields, in particular to an anti-corrosion oil pipe for oil fields. Background technique [0002] The oil pipe is one of the main oil production tools in the oil field. In the oil field production process, in order to improve the oil recovery rate, the new technology of water flooding and three-element flooding is adopted. Influenced by factors such as high temperature and other factors, the problem of scaling and corrosion on the inner wall of the pipe wall has become increasingly prominent. At the same time, the outer wall of the oil pipe is in direct contact with the soil in the oil field, and the chemical composition of the soil in the oil field is complex, and electrochemical corrosion has occurred, resulting in the damage of the entire oil pipe. The outer wall and the inner wall are corroded at the same time, which greatly reduces the service life of the oil p...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem of insufficient anti-corrosion of the existing oil pipes, the difficulty for operators to occur specific corrosion leakage parts and insufficient connection between each oil pipe, and designs an anti-corrosion oil for oilfields that can effectively solve the above technical problems.

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