Method for prolonging service life of oil extraction pump for oil field

A technology for oil production pumps and longevity, which is applied in jewelry, etc., can solve the problems that the rapid corrosion process cannot play an effective protective role, and the anti-corrosion coating cannot overcome stress cracking corrosion, so as to overcome stress cracking corrosion, suppress uniform corrosion, and prevent corrosion. The effect of electrochemical corrosion

Pending Publication Date: 2020-07-10
ANHUI LUYUAN PUMP&VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing anti-corrosion treatment methods mostly use a layer of anti-corrosion coating on the surface, but ordinary anti-corrosion coatings cannot overcome stress cracking corrosion, and cannot effectively protect the rapid corrosion process

Method used

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  • Method for prolonging service life of oil extraction pump for oil field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for improving the service life of an oil recovery pump used in an oil field, specifically, comprising the following process steps:

[0019] S1: Grind the metal surface of the pump body, use 200-mesh, 320-mesh, and 600-mesh sandpaper in sequence to remove the surface scale, then use acetone solution to ultrasonically clean for 10 minutes to remove surface oil stains, and dry in a 90°C drying oven for 10 minutes. hours; waiting for plating;

[0020] S2: Preparation of electroplating solution: Weigh silicon carbide powder and manganese oxide powder according to the mass ratio of 6.0:2.5, place them in a vibrating mill, vibrate and mix for 4 hours, and stop for 10 minutes every 30 minutes during the vibration, and mix the mixed The powder is taken out, and 1.4 times the volume of polyvinyl alcohol solution with a mass concentration of 3.0% is added to the powder, placed in a mixer and mixed at high speed for 20 minutes at a mixing speed of 3600 rpm, and passed thro...

Embodiment 2

[0028] A method for improving the service life of an oil recovery pump used in an oil field, specifically, comprising the following process steps:

[0029] S1: Grind the metal surface of the pump body of the oil production pump, use 200-mesh, 320-mesh, and 600-mesh sandpaper in sequence to remove the surface scale, then use acetone solution to ultrasonically clean for 12 minutes to remove surface oil stains, and dry in a 92°C drying oven for 11 hours; waiting for plating;

[0030] S2: Preparation of electroplating solution: Weigh silicon carbide powder and manganese oxide powder according to the mass ratio of 6.3:2.6, place them in a vibrating mill, vibrate and mix for 4.5 hours, and stop for 12 minutes every 35 minutes of vibration during the period. The powder is taken out, and 1.5 times the volume of polyvinyl alcohol solution with a mass concentration of 3.3% is added to the powder, placed in a mixer and mixed at high speed for 25 minutes at a mixing speed of 3700 rpm, and...

Embodiment 3

[0038] A method for improving the service life of an oil recovery pump used in an oil field, specifically, comprising the following process steps:

[0039] S1: Grind the metal surface of the oil production pump body, use 200-mesh, 320-mesh, and 600-mesh sandpaper in sequence to remove the surface scale, then use acetone solution to ultrasonically clean for 15 minutes to remove surface oil stains, and dry in a 95°C drying oven for 12 hours; waiting for plating;

[0040] S2: Preparation of electroplating solution: Weigh silicon carbide powder and manganese oxide powder according to the mass ratio of 6.5:2.8, place them in a vibrating mill, vibrate and mix for 5 hours, and stop for 15 minutes every 40 minutes during the vibration, and mix the mixed The powder is taken out, and 1.6 times the volume of polyvinyl alcohol solution with a mass concentration of 3.5% is added to the powder, placed in a mixer and mixed at high speed for 30 minutes at a mixing speed of 3800 rpm, and passe...

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Abstract

The invention relates to the technical field of performance research of pumps, and discloses a method for prolonging the service life of an oil extraction pump for an oil field. Prepared electroplating liquid is electro-deposited onto a pump body to-be-plated piece of the oil extraction pump through an electroplating method to form a dense electroplated coating with the thickness being 17.0-19.0 microns, immersion and flushing of corrosive media can be borne for a long term, and excellent chemical resistance and corrosion resistance are achieved; meanwhile, the prepared coating is hard, the surface friction coefficient is low, scaling is inhibited, and the defect that an existing protection coating cannot solve the problem of stress cracking corrosion caused by the corrosive media of the oil field is overcome; and the binding performance of the coating and a pump body can further be enhanced while the corrosion resistance of the coating is improved, defects such as blistering and falling are avoided, and high actual application value is achieved.

Description

technical field [0001] The invention belongs to the technical field of pump performance research, and in particular relates to a method for improving the service life of an oil production pump used in an oil field. Background technique [0002] A pump is a machine that transports fluid or pressurizes the fluid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. The oil production pump is an important equipment in the process of oil production in the oil field, and it is often used in the well fluid at a depth of more than 500 meters underground. There are a large number of urban media in this underground environment. In the process of oil production in the oil field, corrosion and scaling problems will inevitably occur, which not only affects the efficiency of extraction, but also greatly reduces the life of the oil production pump. Corroded production pumps The cost and difficulty of repairing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/34C25D7/00C25D3/12
CPCC25D3/12C25D5/34C25D7/00
Inventor 凤元军
Owner ANHUI LUYUAN PUMP&VALVE CO LTD
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