CN105586588A - Anticorrosion anti-sulfur wear-resistant oil pipe laser cladding coating preparation process - Google Patents
Anticorrosion anti-sulfur wear-resistant oil pipe laser cladding coating preparation process Download PDFInfo
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- CN105586588A CN105586588A CN201410555870.5A CN201410555870A CN105586588A CN 105586588 A CN105586588 A CN 105586588A CN 201410555870 A CN201410555870 A CN 201410555870A CN 105586588 A CN105586588 A CN 105586588A
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Abstract
The present invention discloses an anticorrosion anti-sulfur wear-resistant oil pipe laser cladding coating preparation process. According to the preparation process, a 5000 W cross-flow CO2 laser is used, and the work platform is a digital control laser processing machine; nickel-based alloy powder is automatically conveyed into a laser cladding pool by using a coaxial or paraxial powder conveying device, and a uniform and compact anticorrosion anti-sulfur wear-resistant laser cladding coating with a thickness of 3-6 mm is formed on the processed surface; and a laser surface cladding process is used, the heat-affected zone is small and the strength of the oil pipe is not affected during the cladding process, and the nickel-based alloy with characteristics of good corrosion resistance and high strength is used, such that the oil pipe achieves excellent corrosion resistance and excellent wear resistance while the strength of the oil pipe is ensured. According to the present invention, corrosion resistance, sulfur resistance and wear resistance of the oil pipe are reinforced, the service life of the oil pipe is prolonged, and the long-term problem in the application fields of the oil pipes and the oil pipe corrosion in the petroleum exploration, the oil, gas and water well production operation and construction, and maintenance is solved.
Description
Technical field
The present invention relates to field of laser cladding, specifically a kind of corrosion-proof sulfur-proof wear-resisting oil pipe laser cladding coating preparation technology.
Background technology
In the process of oil-gas field development, because the various oil pipes that use are in containing oxygen, hydrogen sulfide, carbon dioxide. Metal pipe material, under dynamic environment, is subject to the interaction of mechanical force and waterpower that electrochemical corrosion or polytype corrosion easily occur. In oil well corrosion, the internal corrosion of oil pipe is particularly serious, and particularly most domestic oil field enters the oil extraction intermediary and later stages, in oil well, air-fuel mixture well, water injection well, all contains C02、H2Multiple components corrosive medium, the gases such as S, high temperature, high salinity, hole condition environment is more severe, and extent of corrosion constantly aggravates to produce.
China's oil pipe adopts American technology in the past, and etching problem could not finely solve always. Corrosion phenomenon in oil field is not only very general now, and as one of oil field three large public hazards, industry research personage is for this problem, carry out continuous research and made certain gains, select other pipe material of different intensity scale according to the condition such as well depth, oil-air pressure: as inner liner compound pipe, Pc300 undercoating pipe, nickel phosphor plating pipe, vacuum nitriding anticorrosion sucker rod etc., select surperficial preservative treatment according to down-hole geologic information: as thrown in corrosion inhibiter etc. simultaneously. These technology have reduced the inner wall corrosion of oil pipe in varying degrees.
But generally speaking, can't fundamentally solve the etching problem of oil pipe, especially the corrosion of tube end screw thread. At home, be mainly for the acid-base value control of production fluid and the protection of pipe body to the anticorrosion of down-hole oil tube, and the research of oil pipe to tube connector only limit to new material, technique (phosphatization, copper facing) aspect. Because the end thread of pipe still can contact with the liquid in tubing string after connection, coating is because adhesion is not strong, screw in process destroyedly at oil pipe, long-term production will inevitably cause screw thread corrosion failure, so prevention effect is not good enough, to prevent and treat success rate not high yet.
Summary of the invention
The object of the present invention is to provide a kind of corrosion-proof sulfur-proof wear-resisting oil pipe laser cladding coating preparation technology, use laser cladding method on oil pipe, to be prepared corrosion-proof sulfur-proof wear-resisting laser cladding coating, the oil pipe of its acquisition is combined well, uses high strength anticorrosive anti-wear to damage alloy powder system with workpiece, it is fine and closely woven that it obtains cladding layer microscopic structure, and this microstructure morphology makes oil pipe have more excellent corrosion-proof sulfur-proof wear-resisting performance.
For achieving the above object, the invention provides following technical scheme:
A kind of corrosion-proof sulfur-proof wear-resisting oil pipe laser cladding coating preparation technology, comprises following processing step:
(1) under room temperature, with cleaning agent, oil pipe is carried out to oil removing, processing of rust removing, and clean up with alcohol; Treat working position with Dye inspectiong and test, require working position flawless, pore, inclusion defect;
(2) high, corrosion-resistant and good with the metallurgical compatibility of the matrix Co-based alloy powder of working strength, described Co-based alloy powder according to the component of percentage by weight is: C:0.02-0.04%, Cr:20-23%, Fe:1.2-1.6%, Mo:8-10%, Si:0.2-0.4%, Nb:3.6-4.0%, and surplus is Ni;
(3) use 5000W crossing current CO2Laser instrument, workbench is CNC laser processing machine; Adopt coaxial or paraxonic dust feeder that the Co-based alloy powder in step (2) is sent into laser molten pool automatically, form the laser cladding coating of the corrosion-proof sulfur-proof wear-resisting of even compact at machined surface, thickness is at 3-6mm; Its technological parameter is as follows:
Focus lamp F=300-400mm
Cladding power P=2000-5000W
Spot size D=3-10mm
Scan velocity V=200-1000mm/min
Overlapping rate 40%-60%;
(4) laser cladding coating of preparation in step (3) is carried out to crack-detecting detection and judgement has or not crack defect to produce;
(5) on laser cladding coating, carry out machining by the requirement of oil pipe;
(6) tube inner wall is carried out to preservative treatment.
As the further scheme of the present invention: described in step (2), Co-based alloy powder according to the component of percentage by weight is: C:0.03%, Cr:21.5%, Fe:1.4%, Mo:9%, Si:0.4%, Nb:3.8%, surplus is Ni.
As the further scheme of the present invention: the technological parameter in step (3) is as follows:
Focus lamp F=350mm
Cladding power P=3500W
Spot size D=6.5mm
Scan velocity V=600mm/min
Overlapping rate 50%.
The present invention adopts cladding laser surfaces technique, and in cladding process, heat affected area is little, and oil pipe intensity, without impact, is adopted to the high nickel-base alloy of good corrosion resistance intensity, is ensureing oil pipe intensity simultaneously, and oil pipe obtains excellent anti-corrosion wear performance.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention has strengthened the corrosion-proof sulfur-proof wear-resisting performance of oil pipe, improves its service life, has solved China in oil exploitation, oil pipe and long-term unsolved difficult problem of oil pipe anti-corrosive erosion application in oil, gas, well production operation construction, maintenance. Extend oil pipe service life, reduced production cost, increased substantially the recovery ratio of oil, gas well, and had production technology to meet the convenient and promotional value of on-the-spot requirement, regular maintenance compared with high. Save replacing debug time and maintenance time, improved the service efficiency of oil pipe, greatly reduced the process cost of oil exploitation.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
A kind of corrosion-proof sulfur-proof wear-resisting oil pipe laser cladding coating preparation technology, comprises following processing step:
(1) under room temperature, with cleaning agent, oil pipe is carried out to oil removing, processing of rust removing, and clean up with alcohol; Treat working position with Dye inspectiong and test, require working position flawless, pore, inclusion defect;
(2) high, corrosion-resistant and good with the metallurgical compatibility of the matrix Co-based alloy powder of working strength, described Co-based alloy powder according to the component of percentage by weight is: C:0.02%, Cr:20%, Fe:1.2%, Mo:8%, Si:0.2%, Nb:3.6%, and surplus is Ni;
(3) use 5000W crossing current CO2Laser instrument, workbench is SIMENS CNC laser processing machine; Adopt coaxial or paraxonic dust feeder that the Co-based alloy powder in step (2) is sent into laser molten pool automatically, form the laser cladding coating of the corrosion-proof sulfur-proof wear-resisting of even compact at machined surface, thickness is at 3mm; Its technological parameter is as follows:
Focus lamp F=300mm
Cladding power P=2000W
Spot size D=3mm
Scan velocity V=200mm/min
Overlapping rate 40%;
(4) laser cladding coating of preparation in step (3) is carried out to crack-detecting detection and judgement has or not crack defect to produce;
(5) on laser cladding coating, carry out machining by the requirement of oil pipe;
(6) tube inner wall is carried out to preservative treatment.
Embodiment 2
A kind of corrosion-proof sulfur-proof wear-resisting oil pipe laser cladding coating preparation technology, comprises following processing step:
(1) under room temperature, with cleaning agent, oil pipe is carried out to oil removing, processing of rust removing, and clean up with alcohol; Treat working position with Dye inspectiong and test, require working position flawless, pore, inclusion defect;
(2) high, corrosion-resistant and good with the metallurgical compatibility of the matrix Co-based alloy powder of working strength, described Co-based alloy powder according to the component of percentage by weight is: C:0.03%, Cr:21.5%, Fe:1.4%, Mo:9%, Si:0.4%, Nb:3.8%, and surplus is Ni;
(3) use 5000W crossing current CO2Laser instrument, workbench is SIMENS CNC laser processing machine; Adopt coaxial or paraxonic dust feeder that the Co-based alloy powder in step (2) is sent into laser molten pool automatically, form the laser cladding coating of the corrosion-proof sulfur-proof wear-resisting of even compact at machined surface, thickness is at 4.5mm; Its technological parameter is as follows:
Focus lamp F=350mm
Cladding power P=3500W
Spot size D=6.5mm
Scan velocity V=600mm/min
Overlapping rate 50%;
(4) laser cladding coating of preparation in step (3) is carried out to crack-detecting detection and judgement has or not crack defect to produce;
(5) on laser cladding coating, carry out machining by the requirement of oil pipe;
(6) tube inner wall is carried out to preservative treatment.
Embodiment 3
A kind of corrosion-proof sulfur-proof wear-resisting oil pipe laser cladding coating preparation technology, comprises following processing step:
(1) under room temperature, with cleaning agent, oil pipe is carried out to oil removing, processing of rust removing, and clean up with alcohol; Treat working position with Dye inspectiong and test, require working position flawless, pore, inclusion defect;
(2) high, corrosion-resistant and good with the metallurgical compatibility of the matrix Co-based alloy powder of working strength, described Co-based alloy powder according to the component of percentage by weight is: C:0.04%, Cr:23%, Fe:1.6%, Mo:10%, Si:0.4%, Nb:4.0%, and surplus is Ni;
(3) use 5000W crossing current CO2Laser instrument, workbench is SIMENS CNC laser processing machine; Adopt coaxial or paraxonic dust feeder that the Co-based alloy powder in step (2) is sent into laser molten pool automatically, form the laser cladding coating of the corrosion-proof sulfur-proof wear-resisting of even compact at machined surface, thickness is at 6mm; Its technological parameter is as follows:
Focus lamp F=400mm
Cladding power P=5000W
Spot size D=10mm
Scan velocity V=1000mm/min
Overlapping rate 60%;
(4) laser cladding coating of preparation in step (3) is carried out to crack-detecting detection and judgement has or not crack defect to produce
(5) on laser cladding coating, carry out machining by the requirement of oil pipe;
(6) tube inner wall is carried out to preservative treatment.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form. Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the present invention.
In addition, be to be understood that, although this description is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. a corrosion-proof sulfur-proof wear-resisting oil pipe laser cladding coating preparation technology, is characterized in that, comprises following processing step:
(1) under room temperature, with cleaning agent, oil pipe is carried out to oil removing, processing of rust removing, and clean up with alcohol; Treat working position with Dye inspectiong and test, require working position flawless, pore, inclusion defect;
(2) high, corrosion-resistant and good with the metallurgical compatibility of the matrix Co-based alloy powder of working strength, described Co-based alloy powder according to the component of percentage by weight is: C:0.02-0.04%, Cr:20-23%, Fe:1.2-1.6%, Mo:8-10%, Si:0.2-0.4%, Nb:3.6-4.0%, and surplus is Ni;
(3) use 5000W crossing current CO2Laser instrument, workbench is CNC laser processing machine; Adopt coaxial or paraxonic dust feeder that the Co-based alloy powder in step (2) is sent into laser molten pool automatically, form the laser cladding coating of the corrosion-proof sulfur-proof wear-resisting of even compact at machined surface, thickness is at 3-6mm; Its technological parameter is as follows:
Focus lamp F=300-400mm
Cladding power P=2000-5000W
Spot size D=3-10mm
Scan velocity V=200-1000mm/min
Overlapping rate 40%-60%;
The laser cladding coating of preparation in step (3) is carried out to crack-detecting detection and judgement has or not crack defect to produce;
On laser cladding coating, carry out machining by the requirement of oil pipe;
Tube inner wall is carried out to preservative treatment.
2. corrosion-proof sulfur-proof wear-resisting oil pipe laser cladding coating preparation technology according to claim 1, it is characterized in that, described in step (2), Co-based alloy powder according to the component of percentage by weight is: C:0.03%, Cr:21.5%, Fe:1.4%, Mo:9%, Si:0.4%, Nb:3.8%, surplus is Ni.
3. corrosion-proof sulfur-proof wear-resisting oil pipe laser cladding coating preparation technology according to claim 1, is characterized in that, the technological parameter in step (3) is as follows:
Focus lamp F=350mm
Cladding power P=3500W
Spot size D=6.5mm
Scan velocity V=600mm/min
Overlapping rate 50%.
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| CN201410555870.5A CN105586588A (en) | 2014-10-20 | 2014-10-20 | Anticorrosion anti-sulfur wear-resistant oil pipe laser cladding coating preparation process |
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| CN201410555870.5A CN105586588A (en) | 2014-10-20 | 2014-10-20 | Anticorrosion anti-sulfur wear-resistant oil pipe laser cladding coating preparation process |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435139A (en) * | 2016-11-27 | 2017-02-22 | 无锡金顶石油管材配件制造有限公司 | Surface treatment process of tubing coupling and tubing coupling |
| CN108559988A (en) * | 2017-12-22 | 2018-09-21 | 北京机科国创轻量化科学研究院有限公司 | A kind of sucker rod manufactured using superelevation rate laser cladding method |
| CN108559991A (en) * | 2017-12-22 | 2018-09-21 | 北京机科国创轻量化科学研究院有限公司 | A method of repairing sucker rod |
| CN108559989A (en) * | 2017-12-22 | 2018-09-21 | 北京机科国创轻量化科学研究院有限公司 | A method of for manufacturing sucker rod |
| CN110453214A (en) * | 2019-08-29 | 2019-11-15 | 上海材料研究所 | A kind of laser cladding method of nickel-base alloy laser cladding powder |
| CN111139465A (en) * | 2019-12-23 | 2020-05-12 | 芜湖舍达激光科技有限公司 | Manufacturing method for manufacturing composite steel pipe by laser |
| CN114438489A (en) * | 2021-12-24 | 2022-05-06 | 西安陕鼓动力股份有限公司 | TRT blade surface laser cladding anticorrosion wear-resistant coating, preparation method and TRT blade |
| CN115522194A (en) * | 2021-06-25 | 2022-12-27 | 宝山钢铁股份有限公司 | Manufacturing method of bimetal metallurgy composite oil casing pipe and bimetal metallurgy composite oil casing pipe |
| CN118007128A (en) * | 2024-04-09 | 2024-05-10 | 天津滨海雷克斯激光科技发展有限公司 | Salt cavern compressed air energy storage shaft inner wall laser cladding composite steel pipe |
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2014
- 2014-10-20 CN CN201410555870.5A patent/CN105586588A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435139A (en) * | 2016-11-27 | 2017-02-22 | 无锡金顶石油管材配件制造有限公司 | Surface treatment process of tubing coupling and tubing coupling |
| CN108559988A (en) * | 2017-12-22 | 2018-09-21 | 北京机科国创轻量化科学研究院有限公司 | A kind of sucker rod manufactured using superelevation rate laser cladding method |
| CN108559991A (en) * | 2017-12-22 | 2018-09-21 | 北京机科国创轻量化科学研究院有限公司 | A method of repairing sucker rod |
| CN108559989A (en) * | 2017-12-22 | 2018-09-21 | 北京机科国创轻量化科学研究院有限公司 | A method of for manufacturing sucker rod |
| CN110453214A (en) * | 2019-08-29 | 2019-11-15 | 上海材料研究所 | A kind of laser cladding method of nickel-base alloy laser cladding powder |
| CN111139465A (en) * | 2019-12-23 | 2020-05-12 | 芜湖舍达激光科技有限公司 | Manufacturing method for manufacturing composite steel pipe by laser |
| CN115522194A (en) * | 2021-06-25 | 2022-12-27 | 宝山钢铁股份有限公司 | Manufacturing method of bimetal metallurgy composite oil casing pipe and bimetal metallurgy composite oil casing pipe |
| CN114438489A (en) * | 2021-12-24 | 2022-05-06 | 西安陕鼓动力股份有限公司 | TRT blade surface laser cladding anticorrosion wear-resistant coating, preparation method and TRT blade |
| CN114438489B (en) * | 2021-12-24 | 2023-11-28 | 西安陕鼓动力股份有限公司 | Laser cladding anti-corrosion wear-resistant coating on surface of TRT blade, preparation method and TRT blade |
| CN118007128A (en) * | 2024-04-09 | 2024-05-10 | 天津滨海雷克斯激光科技发展有限公司 | Salt cavern compressed air energy storage shaft inner wall laser cladding composite steel pipe |
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Application publication date: 20160518 |