Sealing technique for plating oil pipe by nickel phosphorus

Abstract

The present invention relates to a new art of an enclosed nickel phosphorus plated oil pipe. The present invention consists of an acid liquor tank, a nickel phosphorus liquor tank, a clean water tank, a density measure apparatus, a plastic pump, a reversely plated plastic pipe, oil pipes, a quick connector, a manifold, and a plastic pipeline. The present invention is characterized in that the acid liquor tank, the nickel phosphorus liquor tank, and the clean water tank are connected with the inlet opening of the plastic pump in parallel, the outlet opening of the pump and the inlet opening ofthe manifold are connected in parallel, the outlet opening of the manifold and the inlet opening of a blow down tank are connected in parallel, and the outlet opening of the manifold is connected with the acid liquor tank, the nickel phosphorus liquor tank, and the clean water tank in parallel; the oil pipe is connected on the manifold in parallel through the quick connector, and a nickel phosphorus density measure apparatus is arranged at the outlet opening of each oil pipe. The present invention adopts a fully enclosed circulation art, thereby the environment is not polluted, the material is saved, and the processing cost is reduced.

Description

1. Technical field [0001] The invention relates to a new method for coating an anti-corrosion and wear-resistant layer of an oil pipe, in particular to a new technique for sealing a nickel-phosphorus coated oil pipe. 2. Background technology [0002] At present, most oil fields in China have reached the late stage of development and entered the stage of secondary oil recovery and tertiary oil recovery. At this stage, due to the continuous measures of acidification, fracturing, water injection and polymer injection in oil wells, the water content of oil well production fluid is high, and the water quality and chemical composition are complex. , the water contains a large amount of calcium and magnesium acid ions, which will cause serious corrosion and serious scaling and blockage to the oil pipe, seriously affecting the normal production of the oil field. To solve this problem, take the following measures: ①coat the inner wall of the tubing with an epoxy phenolic resin layer,...

AI Technical Summary

Problems solved by technology

[0002] At present, most oil fields in China have reached the late stage of development and entered the stage of secondary oil recovery and tertiary oil recovery. At this stage, due to the continuous measures of acidification, fracturing, water injection and polymer injection in oil wells, the water content of oil well production fluid is high, and the water quality and chemical composition are complex. , the water contains a large amount of calcium and magnesium acid ions, which will cause serious corrosion and serious scaling and blockage to the oil pipe, seriously affecting the normal production of the oil field

To solve this problem, take the following measures: ①coat the inner wall of the tubing with an epoxy phenolic resin layer, but the inner coating often falls off and falls into the bottom of the well under high temperature in the oil well to cause blockage; Corrosion and fouling of oil pipes, but the current process of oxygen penetration and nickel-phosphorus plating is to treat the inside and outside of the oil pipe at the same time, the cost is too high, and the treatment process also has the phenomenon of uneven treatment of the surface of the oil pipe, which makes the oil pipe partially appear in the application Corrosion and Pitting

Images