CN111364086B - Nano metal ceramic electrodeposition coating of inner hole wall of petroleum drill rod and preparation method thereof - Google Patents

Nano metal ceramic electrodeposition coating of inner hole wall of petroleum drill rod and preparation method thereof Download PDF

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CN111364086B
CN111364086B CN202010309172.2A CN202010309172A CN111364086B CN 111364086 B CN111364086 B CN 111364086B CN 202010309172 A CN202010309172 A CN 202010309172A CN 111364086 B CN111364086 B CN 111364086B
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metal ceramic
inner hole
hole wall
nano metal
plating
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CN111364086A (en
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石春炳
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ANHUI SHIBIDA HYDRAULIC PRESSURE EQUIPMENT Co.,Ltd.
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Anhui Shibida Hydraulic Pressure Equipment Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/02—Electroplating of selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/04—Tubes; Rings; Hollow bodies

Abstract

The invention discloses a preparation method of a nano metal ceramic electrodeposition composite coating on the inner hole wall of an oil drill pipe, which comprises the following steps: mixing nickel sulfamate, nickel sulfate, chromic anhydride, saccharin sodium, nano titanium nitride, sodium hydroxyethyl sulfonate and water, adjusting the pH value of a system to 5-5.3, and stirring to obtain a plating solution; grinding and polishing the surface of the inner hole wall of the petroleum drill rod, and then sequentially performing oil production, acid pickling activation and pre-deposition treatment; plating is carried out for one time by adopting the obtained plating solution; adding nano metal ceramic particles into the obtained plating solution, adjusting the pH value of the system to 4-4.2, and plating the product after primary plating for the second time; and washing the secondary plated product, and grinding by using a precision grinding machine to obtain the petroleum drill rod with the inner hole wall electrodeposited with the nano metal ceramic composite coating.

Description

Nano metal ceramic electrodeposition coating of inner hole wall of petroleum drill rod and preparation method thereof
Technical Field
The invention relates to the technical field of petroleum drill pipes, in particular to a nano metal ceramic electrodeposition composite coating on the inner hole wall of a petroleum drill pipe and a preparation method thereof.
Background
Drill pipe is commonly used to connect surface equipment, such as a drilling rig, located above ground with drilling and milling equipment or bottom hole equipment located at the bottom of a well and to cooperate with the drill bit to perform drilling operations. In the field of oil production, an oil drill pipe is one of the important tools indispensable in oil drilling operations.
Because the depth of oil drilling is usually deeper, some oil drilling depth can reach thousands of meters along with the increase of the drilling depth due to different geological conditions, and even the oil drilling depth of some special areas can reach thousands of meters. When the hollow drill rod is used for deep drilling, drilling fluid can be conveyed to the well bottom through the drilling fluid pipe, so that the inner hole wall of the petroleum drill rod is high in all aspects.
Currently, the alloy coating is generally coated in the petroleum drilling well, and the common methods are as follows: powder metallurgy, self-propagating high-temperature synthesis, plasma spraying, laser cladding, electrodeposition, vapor deposition, centrifugal casting, chemical plating, and the like. Most of the methods have complex process and harsh production conditions, the composite electro-deposition technology has unique advantages, the composite electro-deposition technology can enhance the distribution uniformity of coating particles, reduce material waste, and is more unique in the aspects of continuous processing capacity and the like, but the corrosion resistance and the wear resistance are poor, the requirements of petroleum drilling rods on petroleum conveying cannot be met, and the method needs to be solved urgently.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a nano metal ceramic electrodeposition composite coating on the inner hole wall of an oil drill pipe and a preparation method thereof.
The preparation method of the nano metal ceramic electro-deposition composite coating on the inner hole wall of the petroleum drill pipe comprises the following steps:
s1, mixing nickel sulfamate, nickel sulfate, chromic anhydride, saccharin sodium, nano titanium nitride, sodium hydroxyethyl sulfonate and water, adjusting the pH value of the system to 5-5.3, and stirring to obtain a plating solution;
s2, grinding and polishing the surface of the inner hole wall of the petroleum drill rod, and then sequentially performing oil production, acid washing activation and pre-deposition treatment;
s3, plating for one time by adopting the plating solution obtained in the S1, wherein the high-purity electrolytic nickel material is taken as an anode in the one-time plating process, the anode and the cathode are concentrically arranged, the plating temperature is 40-45 ℃, and the current density is 1.5-2A/cm3The plating time is 4-6 h;
s4, adding nano metal ceramic particles into the plating solution obtained in the S1, adjusting the pH value of the system to 4-4.2, and plating the S3 product for the second time, wherein in the secondary plating process, a high-purity electrolytic nickel material is used as an anode, the plating temperature is 55-60 ℃, and the current density is 2.5-3A/cm3The plating time is 1-2 h;
and S5, washing the product S4 with water, and then grinding the product by using a precision grinding machine to obtain the petroleum drill rod with the inner hole wall electrodeposited with the nano metal ceramic composite coating.
Preferably, the purity of the high-purity electrolytic nickel material is > 99.999%.
Preferably, in S1, the mass ratio of nickel sulfamate, nickel sulfate, chromic anhydride, saccharin sodium, nano titanium nitride, sodium hydroxyethyl sulfonate and water is 20-25: 1-2: 1-2: 0.01-0.02: 0.5-1.2: 0.1-0.2: 100-200.
Preferably, in S1, the particle size of the nano titanium nitride is 150-500nm, wherein the mass percentage of the nano titanium nitride with the particle size of 150nm or more and less than 250nm is 60-80%, the mass percentage of the nano titanium nitride with the particle size of 250nm or more and less than 400nm is 5-20%, and the balance is the nano titanium nitride with the particle size of 400nm or more and less than 500 nm.
Preferably, in S1, the specific operation of stirring is as follows: the temperature is adjusted to 60-70 ℃ and stirred for 1-2h, and the stirring speed is 120-200 r/min.
Preferably, in S2, the surface of the inner hole wall of the oil drill pipe is ground and polished to a surface roughness of 0.1-0.15 μm.
Preferably, in S4, the mass ratio of the plating solution obtained in S1 to the nano metal ceramic particles is 100: 1-2.
Preferably, in S4, the nano cermet particles have a particle size of 10 to 100 nm.
Preferably, in the nano metal ceramic particles of S4, the ceramic phase accounts for 15-25wt%, and the rest is metal phase; wherein the metal phase is nickel and the ceramic phase is alumina.
Preferably, the thickness of the nano metal ceramic composite plating layer is 150-200 μm.
An oil drill pipe with a nano metal ceramic composite coating electrodeposited on the inner hole wall is prepared by the preparation method of the nano metal ceramic composite coating electrodeposited on the inner hole wall of the oil drill pipe.
The technical effects of the invention are as follows:
(1) in the S1 process, the nano titanium nitride with specific particle size distribution is used as the electroplating bottom layer, so that the whole inner hole wall of the oil drill rod is relatively flat, the hardness and the corrosion resistance of the inner hole wall of the oil drill rod can be effectively improved, and the nano metal ceramic particles are flat in surface and uniform in thickness when the interface of the oil drill rod and the nano metal ceramic particles is combined.
(2) In the nano metal ceramic particles, because the surfaces of the ceramic particles are wrapped by the metal phase in the shape of a continuous film, the ceramic phase bears mechanical stress, and the metal phase is wrapped on the surfaces of the ceramic phase to be strengthened; the nano metal ceramic particles have the particle size of 10-100nm and the ceramic phase ratio of 15-25%, the electroplating conditions are limited, the electrodeposition process is reasonably adjusted, and the surface coating is detected to be compact in structure, stronger in binding force and better in wear resistance.
(3) The electro-deposition composite coating obtained by the invention has high processing efficiency and simple process, is applied to the inner hole wall of the petroleum drill rod, and can meet the use requirements under the working conditions of high abrasion, high load and high corrosion.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Example 1
The preparation method of the nano metal ceramic electro-deposition composite coating on the inner hole wall of the petroleum drill pipe comprises the following steps:
s1, mixing 20kg of nickel sulfamate, 2kg of nickel sulfate, 1kg of chromic anhydride, 0.02kg of saccharin sodium, 0.5kg of nano titanium nitride with the particle size of 150-500nm, 0.2kg of sodium hydroxyethyl sulfonate and 100kg of water, adjusting the pH value of the system to 5-5.3, adjusting the temperature to 70 ℃, stirring for 1h at the stirring speed of 200r/min, and obtaining the plating solution;
in the nano titanium nitride, the nano titanium nitride with the grain diameter of more than or equal to 150nm and less than 250nm accounts for 60 percent by mass, the nano titanium nitride with the grain diameter of more than or equal to 250nm and less than 400nm accounts for 20 percent by mass, and the balance is the nano titanium nitride with the grain diameter of more than or equal to 400nm and less than or equal to 500 nm;
s2, grinding and polishing the surface of the inner hole wall of the oil drill rod until the surface roughness is 0.1 mu m, and then sequentially performing oil production, acid cleaning activation and pre-deposition treatment;
s3, plating for one time by adopting the plating solution obtained in the S1, wherein in the plating process for one time, a high-purity electrolytic nickel material is taken as an anode, the anode and the cathode are concentrically arranged, the plating temperature is 45 ℃, and the current density is 1.5A/cm3The plating time is 6 h;
s4, taking nickel as a metal phase and alumina as a ceramic phase for the nano metal ceramic particles, wherein the mass ratio of nickel in the nano metal ceramic particles is 15%;
adding 2kg of nano metal ceramic particles with the particle size of 10-100nm into 100kg of plating solution obtained from S1, adjusting the pH value of the system to be 4-4.2, and plating the S3 product for the second time, wherein the plating temperature is 55 ℃, and the current density is 3A/cm by taking a high-purity electrolytic nickel material as an anode in the secondary plating process3The plating time is 1 h;
and S5, washing the product S4, and grinding the petroleum drill pipe to be treated by a precision grinding machine to obtain the petroleum drill pipe with the inner hole wall electrodeposited with the nano metal ceramic composite coating with the thickness of 200 mu m.
Example 2
The preparation method of the nano metal ceramic electro-deposition composite coating on the inner hole wall of the petroleum drill pipe comprises the following steps:
s1, mixing 25kg of nickel sulfamate, 1kg of nickel sulfate, 2kg of chromic anhydride, 0.01kg of saccharin sodium, 1.2kg of nano titanium nitride with the particle size of 150-500nm, 0.1kg of sodium hydroxyethyl sulfonate and 200kg of water, adjusting the pH value of the system to 5-5.3, adjusting the temperature to 60 ℃, stirring for 2 hours at the stirring speed of 120r/min, and obtaining the plating solution;
in the nano titanium nitride, the nano titanium nitride with the grain diameter of more than or equal to 150nm and less than 250nm accounts for 80 percent by mass, the nano titanium nitride with the grain diameter of more than or equal to 250nm and less than 400nm accounts for 5 percent by mass, and the balance is the nano titanium nitride with the grain diameter of more than or equal to 400nm and less than or equal to 500 nm;
s2, grinding and polishing the surface of the inner hole wall of the oil drill rod until the surface roughness is 0.15 mu m, and then sequentially performing oil production, acid cleaning activation and pre-deposition treatment;
s3, plating for one time by adopting the plating solution obtained in the S1, wherein in the plating process for one time, a high-purity electrolytic nickel material is taken as an anode, the anode and the cathode are concentrically arranged, the plating temperature is 40 ℃, and the current density is 2A/cm3The plating time is 4 hours;
s4, taking nickel as a metal phase and alumina as a ceramic phase for the nano metal ceramic particles, wherein the mass ratio of nickel in the nano metal ceramic particles is 25%;
adding 1kg of nano metal ceramic particles with the particle size of 10-100nm into 100kg of plating solution obtained from S1, adjusting the pH value of the system to be 4-4.2, and plating the S3 product for the second time, wherein the plating temperature is 60 ℃, and the current density is 2.5A/cm by taking a high-purity electrolytic nickel material as an anode in the secondary plating process3The plating time is 2 h;
and S5, washing the product S4, and grinding the petroleum drill pipe to be treated by a precision grinding machine to obtain the petroleum drill pipe with the inner hole wall electrodeposited with a nano metal ceramic composite coating with the thickness of 150 mu m.
Example 3
The preparation method of the nano metal ceramic electro-deposition composite coating on the inner hole wall of the petroleum drill pipe comprises the following steps:
s1, mixing 22kg of nickel sulfamate, 1.8kg of nickel sulfate, 1.3kg of chromic anhydride, 0.018kg of saccharin sodium, 0.6kg of nano titanium nitride with the particle size of 150-500nm, 0.17kg of sodium hydroxyethyl sulfonate and 120kg of water, adjusting the pH value of the system to 5-5.3, adjusting the temperature to 67 ℃, stirring for 1.3h at the stirring speed of 180r/min to obtain a plating solution;
in the nano titanium nitride, 65 percent by mass of nano titanium nitride with the grain diameter of more than or equal to 150nm and less than 250nm, 15 percent by mass of nano titanium nitride with the grain diameter of more than or equal to 250nm and less than 400nm, and the balance of nano titanium nitride with the grain diameter of more than or equal to 400nm and less than or equal to 500 nm;
s2, grinding and polishing the surface of the inner hole wall of the oil drill rod until the surface roughness is 0.12 mu m, and then sequentially performing oil production, acid cleaning activation and pre-deposition treatment;
s3, plating for one time by adopting the plating solution obtained in the S1, wherein in the plating process for one time, a high-purity electrolytic nickel material is taken as an anode, the anode and the cathode are concentrically arranged, the plating temperature is 44 ℃, and the current density is 1.6A/cm3The plating time is 5.5 h;
s4, taking nickel as a metal phase and alumina as a ceramic phase for the nano metal ceramic particles, wherein the mass ratio of nickel in the nano metal ceramic particles is 18%;
adding 1.7kg of nano metal ceramic particles with the particle size of 10-100nm into 100kg of plating solution obtained from S1, adjusting the pH value of the system to be 4-4.2, and plating the S3 product for the second time, wherein the plating temperature is 56 ℃ and the current density is 2.9A/cm by taking a high-purity electrolytic nickel material as an anode in the secondary plating process3The plating time is 1.3 h;
and S5, washing the product S4, and grinding the petroleum drill pipe to be processed by a precision grinding machine to obtain the petroleum drill pipe with the inner hole wall electrodeposited with a nano metal ceramic composite coating with the thickness of 180 mu m.
Example 4
The preparation method of the nano metal ceramic electro-deposition composite coating on the inner hole wall of the petroleum drill pipe comprises the following steps:
s1, mixing 24kg of nickel sulfamate, 1.2kg of nickel sulfate, 1.7kg of chromic anhydride, 0.012kg of saccharin sodium, 1kg of nano titanium nitride with the particle size of 150-500nm, 0.13kg of sodium hydroxyethyl sulfonate and 180kg of water, adjusting the pH value of the system to 5-5.3, adjusting the temperature to 63 ℃, stirring for 1.7h at the stirring speed of 140r/min, and obtaining the plating solution;
in the nano titanium nitride, the nano titanium nitride with the grain diameter of more than or equal to 150nm and less than 250nm accounts for 75 percent by mass, the nano titanium nitride with the grain diameter of more than or equal to 250nm and less than 400nm accounts for 10 percent by mass, and the balance is the nano titanium nitride with the grain diameter of more than or equal to 400nm and less than or equal to 500 nm;
s2, grinding and polishing the surface of the inner hole wall of the oil drill rod until the surface roughness is 0.14 mu m, and then sequentially performing oil production, acid cleaning activation and pre-deposition treatment;
s3, plating for one time by adopting the plating solution obtained in the S1, wherein in the plating process for one time, a high-purity electrolytic nickel material is taken as an anode, the anode and the cathode are concentrically arranged, the plating temperature is 42 ℃, and the current density is 1.8A/cm3The plating time is 4.5 h;
s4, taking nickel as a metal phase and alumina as a ceramic phase for the nano metal ceramic particles, wherein the mass ratio of nickel in the nano metal ceramic particles is 22%;
adding 1.3kg of nano metal ceramic particles with the particle size of 10-100nm into 100kg of plating solution obtained from S1, adjusting the pH value of the system to be 4-4.2, and plating the S3 product for the second time, wherein the plating temperature is 58 ℃ and the current density is 2.7A/cm by taking a high-purity electrolytic nickel material as an anode in the secondary plating process3The plating time is 1.7 h;
and S5, washing the product S4, and grinding the petroleum drill pipe to be processed by a precision grinding machine to obtain the petroleum drill pipe with the inner hole wall electrodeposited with a nano metal ceramic composite coating with the thickness of 160 mu m.
Example 5
The preparation method of the nano metal ceramic electro-deposition composite coating on the inner hole wall of the petroleum drill pipe comprises the following steps:
s1, mixing 23kg of nickel sulfamate, 1.5kg of nickel sulfate, 1.5kg of chromic anhydride, 0.015kg of saccharin sodium, 0.8kg of nano titanium nitride with the particle size of 150-500nm, 0.15kg of sodium hydroxyethyl sulfonate and 150kg of water, adjusting the pH value of the system to 5-5.3, adjusting the temperature to 65 ℃, stirring for 1.5h at the stirring speed of 160r/min, and obtaining the plating solution;
in the nano titanium nitride, the nano titanium nitride with the grain diameter of more than or equal to 150nm and less than 250nm accounts for 70 percent by mass, the nano titanium nitride with the grain diameter of more than or equal to 250nm and less than 400nm accounts for 13 percent by mass, and the balance is the nano titanium nitride with the grain diameter of more than or equal to 400nm and less than or equal to 500 nm;
s2, grinding and polishing the surface of the inner hole wall of the oil drill rod until the surface roughness is 0.13 mu m, and then sequentially performing oil production, acid cleaning activation and pre-deposition treatment;
s3, plating for one time by adopting the plating solution obtained in the S1, wherein in the plating process for one time, a high-purity electrolytic nickel material is taken as an anode, the anode and the cathode are concentrically arranged, the plating temperature is 43 ℃, and the current density is 1.7A/cm3The plating time is 5 h;
s4, taking nickel as a metal phase and alumina as a ceramic phase for the nano metal ceramic particles, wherein the mass ratio of nickel in the nano metal ceramic particles is 20%;
adding 1.5kg of nano metal ceramic particles with the particle size of 10-100nm into 100kg of plating solution obtained from S1, adjusting the pH value of the system to be 4-4.2, plating the S3 product for the second time, wherein the plating temperature is 57 ℃, and the current density is 2.8A/cm by taking a high-purity electrolytic nickel material as an anode in the secondary plating process3The plating time is 1.5 h;
and S5, washing the product S4, and grinding the petroleum drill pipe to be processed by a precision grinding machine to obtain the petroleum drill pipe with the inner hole wall electrodeposited with a nano metal ceramic composite coating with the thickness of 170 mu m.
The petroleum drill pipe with the inner hole wall electrodeposited with the nano metal ceramic composite coating obtained in the example 3-5 is detected (the coating is two layers), and the results are as follows:
example 3 Example 4 Example 5
Surface condition of the coating Has smooth surface Has smooth surface Has smooth surface
Grain condition Is fine and uniform Is fine and uniform Is fine and uniform
Thickness ratio of surface layer coating to bottom layer coating 1：5 1.3：5 2：5
Wear rate, mg/h 0.304 0.312 0.295
Corrosion rate, kg/(m)2×h) 1.2×10-5 1.3×10-5 1.0×10-5
Wherein the wear rate is tested by using an MMU-5G wear tester, the load is 72N, the sliding speed is 62r/min, and the wear time is 1 h; the corrosion resistance was measured using NaCl corrosive liquid with a mass fraction of 3.5% at 30 ℃.
From the above table, it can be seen that: the petroleum drill pipe with the inner hole wall electrodeposited with the nano metal ceramic composite coating can meet the use requirements under the working conditions of high abrasion, high load and high corrosion, and the surface coating has compact structure, stronger binding force and excellent wear resistance through detection.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (9)

1. The preparation method of the nano metal ceramic electro-deposition composite coating on the inner hole wall of the petroleum drill pipe is characterized by comprising the following steps of:
s1, mixing nickel sulfamate, nickel sulfate, chromic anhydride, saccharin sodium, nano titanium nitride, sodium hydroxyethyl sulfonate and water, adjusting the pH value of the system to 5-5.3, and stirring to obtain a plating solution;
the particle size of the nano titanium nitride is 150-500nm, wherein the nano titanium nitride with the particle size of more than or equal to 150nm and less than 250nm accounts for 60-80% by mass, the nano titanium nitride with the particle size of more than or equal to 250nm and less than 400nm accounts for 5-20% by mass, and the balance is the nano titanium nitride with the particle size of more than or equal to 400nm and less than or equal to 500 nm;
s2, grinding and polishing the surface of the inner hole wall of the petroleum drill rod, and then sequentially performing oil production, acid washing activation and pre-deposition treatment;
s3, plating for one time by adopting the plating solution obtained in the S1, wherein the high-purity electrolytic nickel material is taken as an anode in the one-time plating process, the anode and the cathode are concentrically arranged, the plating temperature is 40-45 ℃, and the current density is1.5-2A/cm3The plating time is 4-6 h;
s4, adding nano metal ceramic particles into the plating solution obtained in the S1, adjusting the pH value of the system to 4-4.2, and plating the S3 product for the second time, wherein in the secondary plating process, a high-purity electrolytic nickel material is used as an anode, the plating temperature is 55-60 ℃, and the current density is 2.5-3A/cm3The plating time is 1-2 h;
in the nano metal ceramic particles of S4, the ceramic phase accounts for 15-25wt%, and the rest is metal phase; wherein the metal phase is nickel, and the ceramic phase is alumina;
and S5, washing the product S4 with water, and then grinding the product by using a precision grinding machine to obtain the petroleum drill rod with the inner hole wall electrodeposited with the nano metal ceramic composite coating.
2. The method for preparing the nano metal ceramic electrodeposition composite coating on the inner hole wall of the petroleum drill pipe as claimed in claim 1, wherein the purity of the high-purity electrolytic nickel material is more than 99.999 percent.
3. The method for preparing the nano metal ceramic electrodeposition composite coating on the inner hole wall of the petroleum drill rod as claimed in claim 1, wherein in S1, the mass ratio of nickel sulfamate, nickel sulfate, chromic anhydride, saccharin sodium, nano titanium nitride, sodium hydroxyethyl sulfonate and water is 20-25: 1-2: 1-2: 0.01-0.02: 0.5-1.2: 0.1-0.2: 100-200.
4. The method for preparing the nano metal ceramic electrodeposition composite coating on the inner hole wall of the petroleum drill pipe as claimed in claim 1, wherein in S1, the concrete operation of stirring is as follows: the temperature is adjusted to 60-70 ℃ and stirred for 1-2h, and the stirring speed is 120-200 r/min.
5. The method for preparing the nano metal ceramic electrodeposition composite coating on the inner hole wall of the oil drill pipe as claimed in claim 1, wherein in S2, the surface of the inner hole wall of the oil drill pipe is ground and polished to a surface roughness of 0.1-0.15 μm.
6. The method for preparing the nano metal ceramic electrodeposition composite coating on the inner hole wall of the petroleum drill rod as claimed in claim 1, wherein in S4, the mass ratio of the plating solution obtained in S1 to the nano metal ceramic particles is 100: 1-2.
7. The method for preparing the nano metal ceramic electrodeposition composite coating on the inner hole wall of the petroleum drill pipe as claimed in claim 6, wherein in S4, the particle size of the nano metal ceramic particles is 10-100 nm.
8. The method for preparing the nano metal ceramic electrodeposition composite coating on the inner hole wall of the petroleum drill pipe as claimed in claim 6, wherein the thickness of the nano metal ceramic composite coating is 150-200 μm.
9. An oil drill pipe with a nano metal ceramic composite coating electrodeposited on the inner hole wall is characterized by being prepared by the preparation method of the nano metal ceramic composite coating electrodeposited on the inner hole wall of the oil drill pipe according to any one of claims 1 to 8.
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CN103643266A (en) * 2013-12-18 2014-03-19 吉林大学 Nano metal ceramic electrodeposited composite coating at inner hole wall of oil drill pipe and preparation method thereof
CN107849703A (en) * 2015-04-22 2018-03-27 费德罗-莫格尔有限责任公司 Band coating sliding members
CN110468437A (en) * 2019-08-15 2019-11-19 胜利油田金岛实业有限责任公司胜岛石油机械厂 A kind of preparation method of petroleum stainless steel pipes corrosion resistance structure

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