CN205036973U - Compound oil pipe of cermet that old and useless oil pipe refabrication becomes - Google Patents
Compound oil pipe of cermet that old and useless oil pipe refabrication becomes Download PDFInfo
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- CN205036973U CN205036973U CN201520647766.9U CN201520647766U CN205036973U CN 205036973 U CN205036973 U CN 205036973U CN 201520647766 U CN201520647766 U CN 201520647766U CN 205036973 U CN205036973 U CN 205036973U
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Abstract
The utility model discloses a compound oil pipe of cermet that old and useless oil pipe refabrication becomes, including old and useless oil pipe body, the inboard pipe wall of old and useless oil pipe body has inclined to one side mill ditch dug with a plow and an etch pit, the inboard cover of old and useless oil pipe body has the alloy -layer, and the alloy -layer has sunken packing portion, and sunken packing portion fills ditch dug with a plow and etch pit, the inboard cover of alloy -layer has the cermet layer, and cermet in situ side covers there is the ceramic layer. Compared with the prior art, the utility model the advantage be: the utility model discloses reduce the old and useless oil pipe in oil field and declared the abandoned tender standard, reduced oil pipe's waste product quantity, avoided the waste of the ample resources and the energy, the problem of oil field oil pipe corrode, the production of scale deposit is solved, its life reaches more than 5 times of ordinary new oil pipe life, has reduced the investment cost in oil field.
Description
Technical field
The utility model relates to ceramet composite oil pipe, particularly relates to the ceramet composite oil pipe that a kind of waste and old oil passageway manufactures again.
Background technique
Oil pipe is one of capital equipment of Petroleum Production, often creeps into 1m substantially and need consume oil pipe 15kg, account for 25% of oil well pipe, accounts for 10% of petroleum industry steel total amount.Oil pipe in use, can scrap because of corrosion and eccentric wear by inner tube wall and joint screw thread, causes that oil well is not fuel-displaced, well is noted not enter.Loss except oil pipe itself, also have the operating cost of workover eration great number and the field output of impact, serious the accidents such as the leakage of well liquid or Guan Duan also can occur.The annual discard pipeline of oil field at home about more than 70 ten thousand tons, is worth 4,000,000,000 yuan.
Manufacturing is a kind of industry waste product being implemented to high technology reparation and transformation again, it for be damage maybe by the product scrapped and component, adopt a series of relevant advanced manufacturing technology, the quality that makes to manufacture a product again meets or exceeds the quality and performance of new product.Compared with manufacture new product, then the escapable cost 50% that manufactures a product, energy-conservation 60%, material-saving 70%, produces solid waste hardly, meets the general requirement of building a resource-conserving and environment-friendly society completely, is the rising industry that country promotes energetically and supports.
The physical dimension utilizing SHS technology can recover waste and old oil passageway generates cermet coating simultaneously, thus waste and old oil passageway is manufactured ceramet composite oil pipe that is anticorrosion, wear-resisting, that have long service life again, the old tubing repair of tradition generally has cleaning sorting and the large class of lined duct two, these two kinds of techniques all do not recover the defect of oil pipe, it is only the remaining life utilizing oil pipe, and the performance of oil pipe itself does not get a promotion, from manufacture again different in essence.
Model utility content
The utility model is to solve above-mentioned deficiency, provides the ceramet composite oil pipe that a kind of waste and old oil passageway manufactures again.
Above-mentioned purpose of the present utility model is realized by following technological scheme: the ceramet composite oil pipe that a kind of waste and old oil passageway manufactures again, it is characterized in that: comprise waste and old oil passageway body, inside waste and old oil passageway body, tube wall has eccentric wear ditch dug with a plow and etch pit, alloy-layer is coated with inside described waste and old oil passageway body, alloy-layer has depression filling part, depression filling part is filled ditch dug with a plow and etch pit, be coated with cermet coating inside described alloy-layer, inside cermet coating, be coated with ceramic layer.
A manufacturing process again for the ceramet composite oil pipe that waste and old oil passageway manufactures again, is characterized in that: comprise the following steps:
(1) sorting: waste and old oil passageway sub-elects J55, N80, P110 oil pipe by grade of steel;
(2) pretreatment: different according to oil pipe specification, wall thickness is different, selects the oil pipe that satisfied different SHS process system requires, carries out unloading box cupling, wall thickness detection, screw cutting, high temperature pyrolysis, sandblasting;
(3) lined ceramics: according to oil pipe grade of steel and composition difference, adjust different aluminothermy systems, in aluminothermy system, add different additives, make ceramic layer self-propagating and carry out high―temperature nuclei reaction with waste and old oil passageway base tube, generate the metal layer close with waste and old oil passageway base tube material; In the centrifuge of High Rotation Speed, after self-propagating reaction, the liquid metal of melting under the influence of centrifugal force, in the ditch dug with a plow being filled into tube inner wall eccentric wear and etch pit, and form metallurgy combination with the tube inner wall of moment melting, recover physical dimension and the mechanical property of waste and old oil passageway;
Ceramet composite oil pipe after lined ceramics, its antiseptic property reaches more than 600 times of plain tubing after testing, and wear-resisting property is more than 30 times of plain tubing, and anti-scaling property is more than 70 times of plain tubing, and the life-span is more than 5 times of common new tubing life;
(4) quenching with Subsequent tempering: be modified waste and old oil passageway for P110 and the above condition of delivery, after lined ceramics, needs to re-start quenching with Subsequent tempering to ceramet composite steel tube, recovers the metal structure of oil pipe, to obtain the oil pipe performance index meeting standard;
(5) screw thread process: use numerically controlled lathe and accurate chasing tool, process pipe thread, coat thread compound, first-class box cupling;
(6) detect: the detection by standard, ceramet composite oil pipe being carried out to the indexs such as straightness accuracy, tensile strength, hydrostatics testing;
(7) packaging warehouse-in: according to the requirement of APISpec5CT specification, ceramic oil pipe is fitted to the system be again up to the standards and carries out survey and grow, weigh, spray paint, spray mark, with steel band, oil pipe is broken into bag, put in storage pending.
The utility model advantage is compared with prior art:
1, be compared with the prior art, SHS technology is applied to waste and old oil passageway and manufactures by the utility model first, is the technological method that uniquely can recover waste and old oil passageway physical dimension and performance at present in the world.
2, the utility model greatly reduces oilfield waste and old oil passageway and sentences abandoned tender standard, (according to API standard, namely wall thickness loss 12.5% scraps, and the oil pipe that wall thickness loss be less than 50% can manufacture by this patent again) thus greatly reduce the quantity scrapped of oil pipe, avoid the waste of ample resources and the energy.
3, manufacture that ceramet composite oil pipe is anticorrosion, wear-resisting, antiscale again, solve the production problem of oil pipeline corrosion and scaling, reach more than 5 times of common new oil pipe working life its working life, greatly reduce the cost of investment in oil field.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of waste and old oil passageway body in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the ceramet composite oil pipe that a kind of waste and old oil passageway manufactures again, comprise waste and old oil passageway body 1, inside waste and old oil passageway body 1, tube wall has eccentric wear ditch dug with a plow 2 and etch pit 3, be coated with alloy-layer 4 inside described waste and old oil passageway body 1, alloy-layer 4 has depression filling part 5, and depression filling part 5 pairs of ditch dug with a plows 2 and etch pit 3 are filled, be coated with cermet coating 6 inside described alloy-layer 4, inside cermet coating 6, be coated with ceramic layer 7.
A manufacturing process again for the ceramet composite oil pipe that waste and old oil passageway manufactures again, comprises the following steps:
(1) sorting: according to the mark of oil pipe, sub-elects P110 grade of steel waste and old oil passageway;
(2) pretreatment: pretreatment is the important step manufactured again.It comprises unloads box cupling, Magnetic Flux Leakage Inspecting, screw cutting, oil removing scale removal, alignment, sandblasting, length sorting seven part.
1. box cupling is unloaded: use hydraulic screw-on machine to lay down old box cupling both rapid, do not hinder oil pipe again.
2. wall thickness detects: waste and old oil passageway corrosion is different with the degree of wearing and tearing, then must differentiate before manufacturing, and chooses the thin discard pipeline that can not bear SHS process high temperature of wall, selects the waste and old oil passageway of wall thickness 2.8mm.The general pressure of oil well is little, is no more than 10MPa under normal circumstances; Normal pressure water filling mains pressure is generally 18Mpa (, at 31-35MPa, ultrahigh pressure water injection pressure is up to 50MPa for high pressure water injection pressure range).
3. screw cutting: use die head machine to cut away old thread.
4. high temperature pyrolysis: the oil removing scale removal of waste and old oil passageway inwall and sandblasting are pretreated keys, only have and inner wall cleaning totally could be formed firmly ceramic layer.
Traditional heat alkali liquid cleaning can produce a large amount of sewage, and scale removal is unclean; Use high temperature pyrolysis stove oil removing scale removal only to produce a small amount of waste gas, effect is fine.Due to the complicated component of oil, flash-point-20-100 DEG C; Self-ignition point 380-530 DEG C, the temperature of the material pyrolysis of different component is different, so furnace temperature is the highest be set as 500 DEG C.In temperature-rise period, the oil residues in oil pipe flows out outside stove, avoids a large amount of burning to produce CO
2; 500 DEG C of constant temperature 4 hours, makes the oil remained, dirty pyrolysis.The strict temperature control of pyrolyzing furnace, prevents naked light in stove.
5. sandblasting: the waste and old oil passageway removing grease enters sandblasting operation, removes the dirt loosened and the oxide on surface.The sandblasting of waste and old oil passageway inwall, adopt two-tube sandblasting machine, by standard GB/T 8923-88 " before application steel surface rusting grade and derusting grade ", turbidity test Sa2.5---steel surface is without attachments such as visible grease, dirt, scale, iron rust, painting layers, and any residual vestige is only the slight color spot of point-like or strip.
(3) lined ceramics: lined ceramics is the key link manufactured again, key equipment is the DDF-6 type centrifuge (ZL200710055681.1) of independent research.The feature of this centrifuge is: overlength, total length 9.4m; Rotating speed is high, can reach 2300rpm; Heat-resisting, can work continuously under the baking of 900 DEG C of ceramic lined tubings; The most important thing is centrifuge good dynamic balance, balance level G6.3, under the cooperation of special fixed cover; Centrifugal force is large, and the centrifugal force at φ 73*5.5 tube inner wall place can reach 180-200g; Intellectuality, is furnished with electronic speed-determination, surveys shake system.
According to P110 steel level oil conduit chemical composition adjustment aluminothermy system, the elements such as Cr, Mn, Mo are added in system, during lined ceramics, in the centrifuge of High Rotation Speed, after self-propagating reaction, the liquid metal of melting under the influence of centrifugal force, be filled into tube inner wall by the ditch dug with a plow of eccentric wear and etch pit, form metallurgy combination with tube inner wall; Ceramic layer, under the effect of pressure stress, closely combines with metal layer, defines firm protective layer to waste and old oil passageway.
At a high speed, the centrifuge of overlength is the nucleus equipment of this technique, up under the centrifugal action of 200g, achieves iron layer and the pore being separated, decreasing ceramic layer of ceramic layer, the density and hardness of ceramic layer increased, improves the wear resistance of ceramic layer; Suitable additive adds the melting time of Al2O3, decreases microscopic crack and the pore of ceramic layer, improves the corrosion resistance of ceramic layer.
(4) ceramet composite oil pipe quenching with Subsequent tempering: heat treating regime: 930 DEG C of hot quenchings (30min)+715 DEG C of (60min) tempering heat treatment.
Technological points:
1. the quenching medium that selectivity is excellent.
2. adopt that structure is advanced, the oven of function admirable and tempering furnace.
3. tubing spinning in quenching process, makes oil pipe uniform quenching, guarantees that oil pipe mechanical property is even.
4. inside and outside spray apparatus is adopted in quenching process.
5. the cold bed of structure advanced person, function admirable is adopted.
(5) screw thread process: screw thread process is the requirement according to APISpec5CT specification, uses numerically controlled lathe and accurate chasing tool, processes pipe thread.Tubing round thread processing must ensure that parameters is qualified, the connectivity of guarantee screw thread and sealing, and oil pipe is normally used.Then according to the requirement of APISpec5CT specification, thread compound is coated, first-class box cupling.
(6) detect: to the ceramic liner composite oil pipe manufactured again, first carry out the introscope quality inspection of ceramic layer, reject the underproof product of ceramic layer by the requirement of ceramic liner composite oil pipe company standard; Then according to the requirement of APISpec5CT specification, double thread detects, and carries out drift test and hydrostatics testing one by one, to ensure normal, the safe handling that manufacture ceramic oil pipe again.
(7) packaging warehouse-in: according to the requirement of APISpec5CT specification, carries out survey to the pottery of the manufacture again oil pipe be up to the standards and grows, weighs, sprays paint, sprays mark, with steel band, oil pipe is broken into bag, put in storage pending.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (1)
1. the ceramet composite oil pipe that manufactures again of a waste and old oil passageway, it is characterized in that: comprise waste and old oil passageway body, inside waste and old oil passageway body, tube wall has eccentric wear ditch dug with a plow and etch pit, alloy-layer is coated with inside described waste and old oil passageway body, alloy-layer has depression filling part, depression filling part is filled ditch dug with a plow and etch pit, is coated with cermet coating, is coated with ceramic layer inside cermet coating inside described alloy-layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647766.9U CN205036973U (en) | 2015-08-26 | 2015-08-26 | Compound oil pipe of cermet that old and useless oil pipe refabrication becomes |
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| CN201520647766.9U CN205036973U (en) | 2015-08-26 | 2015-08-26 | Compound oil pipe of cermet that old and useless oil pipe refabrication becomes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333238A (en) * | 2015-08-26 | 2016-02-17 | 杨永利 | Metal ceramic composite oil tube formed by remanufacturing waste oil tube and waste oil tube remanufacturing technology |
| CN105333238B (en) * | 2015-08-26 | 2024-06-04 | 杨永利 | Metal ceramic composite oil pipe manufactured by remanufacturing waste oil pipe and remanufacturing process thereof |
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2015
- 2015-08-26 CN CN201520647766.9U patent/CN205036973U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333238A (en) * | 2015-08-26 | 2016-02-17 | 杨永利 | Metal ceramic composite oil tube formed by remanufacturing waste oil tube and waste oil tube remanufacturing technology |
| CN105333238B (en) * | 2015-08-26 | 2024-06-04 | 杨永利 | Metal ceramic composite oil pipe manufactured by remanufacturing waste oil pipe and remanufacturing process thereof |
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Effective date of registration: 20210407 Address after: No.1629, Jinghu North Road, Songyuan economic and Technological Development Zone, Songyuan City, Jilin Province 138000 Patentee after: Jilin Tiansheng metal ceramic technology Co.,Ltd. are Address before: 130000 group 1, Changchun pearl First Committee, Xingfu street, Nanguan District, Changchun City, Jilin Province Patentee before: Yang Yongli |