CN107246244B - It is a kind of can early warning fracture occur alloy coating pumping rod/polish rod and its processing technology - Google Patents
It is a kind of can early warning fracture occur alloy coating pumping rod/polish rod and its processing technology Download PDFInfo
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- CN107246244B CN107246244B CN201710603187.8A CN201710603187A CN107246244B CN 107246244 B CN107246244 B CN 107246244B CN 201710603187 A CN201710603187 A CN 201710603187A CN 107246244 B CN107246244 B CN 107246244B
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 82
- 239000000956 alloy Substances 0.000 title claims abstract description 82
- 239000011248 coating agent Substances 0.000 title claims abstract description 75
- 238000000576 coating method Methods 0.000 title claims abstract description 75
- 238000005086 pumping Methods 0.000 title claims abstract description 55
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000012545 processing Methods 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 37
- 239000007787 solid Substances 0.000 claims abstract description 27
- 239000000049 pigment Substances 0.000 claims abstract description 12
- 239000011148 porous material Substances 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 32
- 239000003921 oil Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000010309 melting process Methods 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 5
- 238000007788 roughening Methods 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910000967 As alloy Inorganic materials 0.000 abstract 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 11
- 238000013461 design Methods 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 8
- 239000002344 surface layer Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 206010016256 fatigue Diseases 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000246 remedial effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Earth Drilling (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
It is a kind of can early warning fracture occur alloy coating pumping rod/polish rod, including substrate and positioned at the ni base alloy coating of the substrate surface, the substrate is a long straight round bar, the substrate is made of solid bar section, tubing section and fixed end, the steel tubing of 1-3 meters of the tubing Duan Weichang, the liquid containing pigment is filled in the pore space of the tubing section, there is long 10-50 millimeters of weld seam between the solid bar section and the tubing section, is linked together by the way of screw thread between the tubing section and the fixed end.To polished rod substrate, there is no limit spraying-remelting or pre-bonded-remelting processing technology is can be used in the preparation of coating for the processing of the oil pumping polish rod.The complex situations of fatigue fracture occur for the ni base alloy coating oil pumping polish rod that current oil field is widely applied for the alloy coating pumping rod/polish rod in the present invention, the early warning that fracture occurs is realized by the way of intuitively showing, the problems such as alloy coating pumping rod/polish rod caused by being broken generation suddenly due to stopping production with high workover treatment expense can be effectively solved, the normal operation for ensuring oilfield is facilitated.
Description
Technical field
The present invention relates to oil equipments, are more particularly to a kind of oil pumping polish rod.
Background technique
Oil pumping polish rod is one of the component of oil field artificial lift oil recovery most critical, and the quality of performance is directly related to oil well
It can normally produce.Once polished rod breakage problem occurs, it will cause oil well to stop production and carry out workover treatment, thus bring is tieed up
It repairs and to stop well economic loss huge.
Oil field mainly uses the higher ni base alloy coating oil pumping polish rod of hardness to solve it in oil recovery process at present
Abrasion and etching problem, and corresponding product standard has been formd in 5029 standard of API 11B and SY/T.But it is tired
Labor fracture remains the main problem of puzzlement ni base alloy coating oil pumping polish rod failure, especially 10 centimeters of models below optical-rod clamp
In enclosing and its region of stress concentration bent around becomes the occurrence of location of fatigue fracture.On the one hand, due to alloy coating pumping light
Metallurgical bonding is used between bar and polished rod matrix, and there are the differences on material to cause under stress condition between coating and matrix
Deformation, so as to cause fatigue fracture；On the other hand, alloy coat hardness is relatively high, under the deformation conditions such as bending
It is easy to cracked, and due to the metallurgical bonding between coating and matrix, once crack propagation enters behind polished rod substrate surface layer
It can quickly be extended in intrinsic silicon, so as to cause the generation of fatigue fracture.In recent years, although in order to improve alloy coating pumping light
The toughness and fatigue performance of bar, having carried out includes addition coating toughening element, using gradient coating technology and high fatigability
Many researchs of energy polished rod substrate etc., so that the service life of ni base alloy coating oil pumping polish rod obtains different degrees of raising,
But fatigue fracture is unexpected under different stress conditions and working environment during military service for ni base alloy coating oil pumping polish rod
What is occurred is effectively predicted effective method not yet, and polished rod fracture often means that the halt production of oil well and high suddenly
Workover treatment expense, thus bring very huge economic loss and management difficulty.Therefore for oilfield exploitation, it is badly in need of out
Send out a kind of effective alloy coating pumping rod/polish rod that function occurs with early warning fracture.
Summary of the invention
Technical problem to be solved by the present invention lies in the deficiencies for overcoming the above-mentioned prior art, provide a kind of disconnected with early warning
Split the ni base alloy coating oil pumping polish rod that function occurs.
According to one kind provided by the invention can early warning fracture occur alloy coating pumping rod/polish rod, the major technique used
Scheme are as follows: including substrate and positioned at the ni base alloy coating of the substrate surface, the substrate is a long straight round bar, the substrate
It is made of solid bar section, tubing section and fixed end, the tubing section is located at the solid bar section and the fixed end
Between, one end of the solid bar section is upset end, have on the end of the upset end can connect with rod collar outside
Screw thread, the steel tubing of 1-3 meters of the tubing Duan Weichang fill the liquid containing pigment in the pore space of the tubing section,
Have long 10-50 millimeters of weld seam between the solid bar section and the tubing section, the tubing section and the fixed end it
Between linked together by the way of screw thread.
It is provided by the invention can early warning fracture occur alloy coating pumping rod/polish rod, also use following attached technical scheme:
The fixed end is made of pedestal, preposition head and seal head, and the inside of the pedestal and the preposition head has logical
Hole, the through-hole can be communicated with the tubing section, and the diameter of the through-hole is 1-3 millimeters, and the preposition head outer round surface has can
The external screw thread being connected with the tubing section inner hole, the seal head can be opened and be closed.
One end inner hole of the tubing section has the internal screw thread that can be connected with the preposition head of the fixed end, the tubing section
The micropore along the tubing section cross-sectional diameter direction is distributed in remaining inner surface without internal screw thread.
The radial distance of tubing section outer round surface described in the micropore distance from bottom be 0.5-3 millimeters, the micropore it is straight
Diameter is 0.05-0.10 millimeters, and the micropore equidistantly distributes on the cross section of the tubing section inner surface, and the micropore is in institute
The quantity stated on the same cross section of tubing section inner surface is at least 3.
The liquid containing pigment in the pore space of the tubing section is low temperature resistant low-viscosity (mobile) liquid, the liquid
Contain fluorescent powder in body.
Pigmentary colours in the liquid are shiny red, and the granularity of the fluorescent powder is 50-200 nanometers.
Pressure in the liquid is 0.05-0.30MPa.
By percentage to the quality, powder used in the ni base alloy coating at being grouped as are as follows: C:0%~0.80%, Si:
2.0%~4.0%, B:1.5%~4.5%, Cr:5.0%~15.0%, Fe≤5.0%, surplus are nickel.
According to processing provided by the invention it is above-mentioned can the technique of alloy coating pumping rod/polish rod that occurs of early warning fracture, it is main to wrap
Include following steps:
(1) micropore is processed in the tubing section inner surface using machining or laser technology as required, and in the tubing
One end machining internal thread of section；
(2) the tubing section and the solid bar section are welded together using inertia friction Welding, and uses machine
Face of weld is carried out grinding process by manufacturing process, it is made to keep one with the outer diameter of the tubing section and the solid bar section
It causes, after the greasy dirt of the outer surface of the tubing section welded together and the solid bar section is cleaned drying, derusts
And roughening treatment；
(3) ni base alloy coating is prepared in polished rod substrate surface by the way of surfacing: first spraying Co-based alloy powder
It is coated in the polished rod substrate surface by 100-200 DEG C of the pre-heat treatment, the Ni-based conjunction of spraying is then realized by the way of high-temperature heating
The remelting at bronze end；The preparation of ni base alloy coating can also be realized by the way of pre-bonded-remelting: by Co-based alloy powder
It is uniformly mixed with organic binder, is coated the Co-based alloy powder containing binder by respective thickness requirement using mechanical means
Purify and roughening treatment after the solid bar section and tubing section outer surface, then by the way of induction heating into
The re melting process of row Co-based alloy powder makes the hull-skin temperature of alloy powder reach 950-1100 DEG C, when light occurs in its surface
Remelting terminates when bright mirror surface, and the polished rod is around its axle center spinning during the entire process of remelting, until coating outer surface temperature
It is down to 300 DEG C or less；
(4) the oil pumping polish rod surface covering that previous step completes re melting process is processed by shot blasting；
(5) liquid containing pigment is filled into the inner hole of the tubing section until being full of, by the fixing end
Head is linked together by preposition head external screw thread and the tubing section internal screw thread, opens the seal head of the fixed end, is used
Hydraulic pump applies the seal head that the fixed end is closed after pressure makes the pressure in the liquid reach 0.05-0.30MPa；
(6) obtain it is of the present invention can early warning fracture occur alloy coating pumping rod/polish rod.
According to one kind provided by the invention can the alloy coating pumping rod/polish rod that occurs of early warning fracture and its processing technology, and it is existing
There is technology to compare to have the advantages that
1, alloy coating pumping rod/polish rod of the invention itself has the function of that early warning fracture occurs, by containing pigment and glimmering
The liquid of light powder on ni base alloy coating surface directly displays the form of crack morphology to embody the position of crackle appearance and depth,
Realize to fracture occur direct early warning, for oil pumping polish rod use and replacement provides reference.
2, alloy coating pumping rod/polish rod of the invention can reflect going out into the fatigue crack of polished rod matrix skin in time
Existing situation occurs to issue early warning in advance for fracture.Due to being metallurgical junction between ni base alloy coating pumping oil polish rod coating and matrix
It closes, fatigue crack will be broken within a short period of time after once expanding into substrate, therefore how quick and precisely be predicted
Fatigue crack into matrix skin is its key point.Polished rod substrate in the present invention uses " fixed end-tubing section-reality
The three stage structure of axle material section " is a kind of mentality of designing for being very suitable for ni base alloy coating oil pumping polish rod.Tubing section
Design of length emphasis considers alloy coating pumping rod/polish rod high-incidence actual conditions of 100mm regional fracture below optical-rod clamp.
It, will be in tubing section liquid when being connected to the micropore bottom in tubing section when crack Propagation enters polished rod substrate surface layer
The shiny red liquid containing fluorescent powder is expressed in crackle rapidly under the action of precompression, and is appeared in along crackle channel
The coating outer surface of ni base alloy coating oil pumping polish rod, and brightly painted liquid can in the crack morphology that coating surface is shown
Easily to observe in larger distance, thus the generation for the fracture that gives warning in advance, adopting remedial measures for oil field, it is corresponding to provide
Time.
3, the micropore of tubing section designs in the present invention, it is ensured that ni base alloy coating oil pumping polish rod fatigue fracture warning function
Efficient and reliability.Firstly, micropore is along the substrate cross-sectional diameter directional spreding, in the cross of the tubing section inner surface
It is equidistantly distributed on section, quantity of the micropore on the same cross section of the tubing section inner surface is at least 3, can be with
Realize the random appearance of efficiently discovery fatigue crack.Due to fatigue crack coat inside extend when also in polished rod fatigue fracture
Initial stage, and the expansion rate of fatigue crack will obviously be accelerated after fatigue crack enters polished rod substrate surface layer, therefore predict
The stage is extremely important.Heretofore described micropore is not completely through the outer wall of tubing section, tubing described in micropore distance from bottom
The radial distance of section outer round surface is 0.5-3 millimeters, such to design the fatigue for very well satisfying alloy coating pumping rod/polish rod
Fracture characteristics can timely and accurately detect the fatigue crack into polished rod substrate surface layer.
4, the liquid design in the present invention in tubing section may insure that alloy coating pumping rod/polish rod fatigue fracture early warning is found
It is simple and timely.Liquid is easy to implement the distant surveillance of crack morphology using bright-coloured shiny red, adds fluorescence in liquid
Powder, which may be implemented night, can also easily find crack warning, and the granularity of fluorescent powder is 50-200 nanometers and it may be implemented in fatigue
Passing freely through in crackle, in conjunction with the low temperature resistant and low viscosity characteristics of liquid, it can be ensured that closed in various complicated Service Environments
The timely realization of gold plating oil pumping polish rod fatigue fracture warning function.
5, the present invention in can early warning fracture occur alloy coating pumping rod/polish rod processing technology have well compatibility,
Alloy coat spraying-remelting and pre-bonded-remelting both main preparation processes can be used, to polished rod substrate there is no limit,
It is easy to use and promotes.
Detailed description of the invention
Fig. 1 is polished rod overall structure diagram of the invention.
Fig. 2 is polished rod fixed end structural schematic diagram of the invention.
Fig. 3 is polished rod tubing segment structure schematic diagram of the invention.
Fig. 4 is polished rod tubing section microcellular structure schematic diagram of the invention.
Specific embodiment
Referring to Fig. 1, according to one kind provided by the invention can the alloy coating pumping rod/polish rod embodiment that occurs of early warning fracture, packet
Include substrate 1 and the ni base alloy coating 2 positioned at 1 surface of substrate, the substrate 1 is a long straight round bar, and the substrate 1 is by reality
Axle material section 3, tubing section 4 and fixed end 5 form, and the tubing section 4 is located at the solid bar section 3 and the fixed end
Between 5, one end of the solid bar section 3 is upset end 6, has and can connect with rod collar on the end of the upset end 6
External screw thread 7, the tubing section 4 is long 1-3 meters of steel tubing, is filled in the pore space of the tubing section 4 containing pigment
Liquid 8, have long 10-50 millimeters of weld seam 9, the tubing section 4 and institute between the solid bar section 3 and the tubing section 4
It states and is linked together by the way of screw thread between fixed end 5.Polished rod substrate 1 in the present invention is using " fixed end 5- pipe
The three stage structure of material section 4- solid bar section 3 " is very suitable for the early warning before ni base alloy coating oil pumping polish rod is broken,
It is high-incidence that the Design of length that 1-3 meters of tubing section covers alloy coating pumping rod/polish rod 100mm regional fracture below optical-rod clamp
Actual conditions, and consider optical-rod clamp possible change in location under the conditions of different oil well conditions.Fixed end 5 and tubing section
4 matching design realizes the filling of the liquid 8 for directly displaying crackle on alloy coat surface.By containing pigment and glimmering
The liquid of light powder on ni base alloy coating surface directly displays the form of crack morphology to embody the position of crackle appearance and depth,
Realize to fracture occur direct early warning, for oil pumping polish rod use and replacement provides reference.
Referring to fig. 2, the above embodiments according to the present invention, the fixed end 5 is by pedestal 51, preposition head 52 and seal head
There is through-hole 54 in the inside of 53 compositions, the pedestal 51 and the preposition head 52, and the through-hole 54 can be communicated with the tubing section 4,
The diameter of the through-hole 54 be 1-3 millimeter, preposition 52 outer round surface of head have can be connected with 4 inner hole of tubing section outside
Screw thread 55, the seal head 53 can be opened and be closed.The above design may be implemented to the supplement of liquid 8 in 4 inner hole of tubing section and
The application and later maintenance of precompression.
Referring to Fig. 3 and Fig. 4, the above embodiments according to the present invention, one end inner hole of the tubing section 4 have can with it is described solid
The internal screw thread 41 that fixed end 5 preposition heads 52 of head are connected, remaining inner surface without internal screw thread of the tubing section are distributed with along described
The micropore 42 in tubing section cross-sectional diameter direction.The radial distance of 4 outer round surface of tubing section described in 42 distance from bottom of micropore
It is 0.5-3 millimeters, not completely through the outer wall of tubing section 4, such design very well satisfies alloy coating pumping rod/polish rod
Fatigue Fracture Characteristics, more than reflection alloy coat in crackle expansion depth, it is often more important that can timely and accurately examine
The fatigue crack entered in 1 surface layer of polished rod substrate is measured, to accurately issue fatigue fracture early warning.The diameter of the micropore 42 is
0.05-0.10 millimeters, the micropore 42 is equidistantly distributed in 4 cross-section inner surface of tubing section, and the micropore 42 is described
Quantity on the same cross section of 4 inner surface of tubing section is at least 3, and the micropore 42 is in the 4 inner surface length of tubing section
The quantity in direction, which can according to need, to be set, so as to realize the fatigue crack for finding to occur at random in time.
Referring to Fig. 1, the above embodiments according to the present invention, the institute containing pigment in the pore space of the tubing section 4
Stating liquid 8 is low temperature resistant low-viscosity (mobile) liquid, contains fluorescent powder in the liquid.Fluorescent powder is added in liquid may be implemented at night
Between easily find the crackle on alloy coat surface, in conjunction with the low temperature resistant and low viscosity characteristics of liquid 8, it can be ensured that in various complexity
The timely realization of alloy coating pumping rod/polish rod fatigue fracture warning function in Service Environment.Pigmentary colours in the liquid 8 are
Shiny red, the distant surveillance of crack morphology is easy to implement using this bright-coloured shiny red, and the granularity of the fluorescent powder is 50-
200 nanometers, its passing freely through in fatigue crack may be implemented.Pressure in the liquid 8 is 0.05-0.30MPa.Due to
It is metallurgical bonding between ni base alloy coating pumping oil polish rod coating 2 and matrix 1, fatigue crack once expands into polished rod substrate 1
It will be broken within a short period of time later, therefore how quick and precisely predict that the fatigue crack into matrix skin is its pass
Where key.It, will when being connected to 42 bottom of micropore in tubing section 4 when crack Propagation enters 1 surface layer of polished rod substrate
The shiny red liquid 8 containing fluorescent powder is expressed in crackle rapidly under the action of tubing section liquid precompression, and along
Crackle channel appears in 2 outer surface of coating of ni base alloy coating oil pumping polish rod, and brightly painted liquid is aobvious in coating surface
The crack morphology shown can easily be observed in larger distance, so that the generation for the fracture that gives warning in advance, takes for oil field
Remedial measure provides the corresponding time.
By percentage to the quality, powder used in the ni base alloy coating 2 at being grouped as are as follows: C:0%~0.80%, Si:
2.0%~4.0%, B:1.5%~4.5%, Cr:5.0%~15.0%, Fe≤5.0%, surplus are nickel.
According to processing provided by the invention it is above-mentioned can the technique of alloy coating pumping rod/polish rod that occurs of early warning fracture, it is main to wrap
Include following steps:
(1) micropore 42 is processed in 4 inner surface of tubing section using machining or laser technology as required, and in the pipe
One end machining internal thread 41 of material section 4；
(2) the tubing section 4 and the solid bar section 3 are welded together using inertia friction Welding, and used
9 surface of weld seam is carried out grinding process by machining means, protects it with the outer diameter of the tubing section 4 and the solid bar section 3
It holds unanimously, after the greasy dirt of the outer surface of the tubing section 4 welded together and the solid bar section 3 is cleaned drying, into
Row derusting and roughening treatment；
(3) ni base alloy coating 2 is prepared on 1 surface of polished rod substrate by the way of surfacing: first by Co-based alloy powder
It is sprayed on 1 surface of polished rod substrate by 100-200 DEG C of the pre-heat treatment, then realizes that spraying is Ni-based by the way of high-temperature heating
The remelting of alloy powder；The preparation of ni base alloy coating 2 can also be realized by the way of pre-bonded-remelting: by nickel-base alloy
Powder is uniformly mixed with organic binder, using mechanical means by the Co-based alloy powder containing binder by respective thickness requirement
Coated in after purification and roughening treatment the solid bar section 3 and 4 outer surface of tubing section, then using induction heating
Mode carries out the re melting process of Co-based alloy powder, and the hull-skin temperature of alloy powder is made to reach 950-1100 DEG C, when its surface
Remelting terminates when there is bright mirror surface, and the polished rod is around its axle center spinning during the entire process of remelting, until coating appearance
Face temperature is down to 300 DEG C hereinafter, the processing technology has compatibility well, can be used spraying-remelting and pre-bonded-remelting this
Two kinds of main alloy coat preparation processes, to polished rod substrate, there is no limit be convenient for application and promotion；
(4) the oil pumping polish rod surface covering 2 that previous step completes re melting process is processed by shot blasting；
(5) liquid 8 by described containing pigment is filled into the inner hole of the tubing section 4 until being full of, by the fixation
End 5 is linked together by preposition head external screw thread 55 and the tubing section internal screw thread 41, opens the sealing of the fixed end
First 53, applied after pressure makes the pressure in the liquid 8 reach 0.05-0.30MPa using hydraulic pump and closes the fixing end
The seal head 53 of head, the presence of precompression can make the liquid 8 rapidly enter crackle channel in time in liquid, thus in alloy
Coating surface issues early warning；
(6) obtain it is of the present invention can early warning fracture occur alloy coating pumping rod/polish rod.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding these embodiments can be changed without departing from the principles and spirit of the present invention, the scope of the present invention by
The following claims and their equivalents limit.
Claims (7)
1. one kind can early warning fracture occur alloy coating pumping rod/polish rod, including substrate and positioned at the Ni-based conjunction of the substrate surface
Gold plating, the substrate are a long straight round bar, it is characterised in that: the substrate is by solid bar section, tubing section and fixed end
Composition, for the tubing section between the solid bar section and the fixed end, one end of the solid bar section is upsetting
Butt end has the external screw thread that can be connect with rod collar, the steel of 1-3 meters of the tubing Duan Weichang on the end of the upset end
Tubing fills the liquid containing pigment in the pore space of the tubing section, between the solid bar section and the tubing section
There is long 10-50 millimeters of weld seam, is linked together by the way of screw thread between the tubing section and the fixed end；It is described
Fixed end is made of pedestal, preposition head and seal head, and there is through-hole in the inside of the pedestal and the preposition head, and the through-hole can
Communicated with the tubing section, the diameter of the through-hole is 1-3 millimeters, the preposition head outer round surface have can in the tubing section
The external screw thread that hole is connected, the seal head can be opened and be closed；One end inner hole of the tubing section has can be with the fixing end
The internal screw thread that preposition head is connected, remaining inner surface without internal screw thread of the tubing section is distributed with transversal along the tubing section
The diametric micropore in face.
2. one kind as described in claim 1 can early warning fracture occur alloy coating pumping rod/polish rod, it is characterised in that: it is described micro-
The radial distance of tubing section outer round surface described in the distance from bottom of hole is 0.5-3 millimeters, and the diameter of the micropore is 0.05-0.10 milli
Rice, the micropore equidistantly distribute on the cross section of the tubing section inner surface, and the micropore is in the tubing section inner surface
Same cross section on quantity be at least 3.
3. one kind as described in claim 1 can early warning fracture occur alloy coating pumping rod/polish rod, it is characterised in that: the pipe
The liquid containing pigment in the pore space of material section is low temperature resistant low-viscosity (mobile) liquid, contains fluorescence in the liquid
Powder.
4. one kind as claimed in claim 3 can early warning fracture occur alloy coating pumping rod/polish rod, it is characterised in that: the liquid
Pigmentary colours in body are shiny red, and the granularity of the fluorescent powder is 50-200 nanometers.
5. one kind as described in claim 1 can early warning fracture occur alloy coating pumping rod/polish rod, it is characterised in that: the liquid
Pressure in body is 0.05-0.30MPa.
6. one kind as described in claim 1 can early warning fracture occur alloy coating pumping rod/polish rod, it is characterised in that: with quality
Percentages, powder used in the ni base alloy coating at being grouped as are as follows: C:0%~0.80%, Si:2.0%~4.0%, B:
1.5%~4.5%, Cr:5.0%~15.0%, Fe≤5.0%, surplus are nickel.
7. it is a kind of process it is as claimed in any one of claims 1 to 6 can early warning fracture occur alloy coating pumping rod/polish rod work
Skill mainly comprises the steps that
(1) micropore is processed in the tubing section inner surface using machining or laser technology as required, and in the tubing section
One end machining internal thread；
(2) the tubing section and the solid bar section are welded together using inertia friction Welding, and using machining
Face of weld is carried out grinding process by means, is consistent the outer diameter of itself and the tubing section and the solid bar section, will
After the greasy dirt of the outer surface of the tubing section and the solid bar section that weld together cleans drying, is derusted and be roughened
Processing；
(3) ni base alloy coating is prepared in polished rod substrate surface by the way of surfacing: being first sprayed on Co-based alloy powder
By the polished rod substrate surface of 100-200 DEG C of the pre-heat treatment, spraying nickel-base alloy powder then is realized by the way of high-temperature heating
The remelting at end；Or the preparation of ni base alloy coating is realized by the way of pre-bonded-remelting: Co-based alloy powder is glued with organic
Tie agent be uniformly mixed, using mechanical means by the Co-based alloy powder containing binder by respective thickness requirements be coated in purify with
The solid bar section and tubing section outer surface after roughening treatment, then carry out Ni-based conjunction by the way of induction heating
The re melting process at bronze end, makes the hull-skin temperature of alloy powder reach 950-1100 DEG C, when bright mirror surface occurs in its surface
Shi Chongrong terminates, and the polished rod is around its axle center spinning during the entire process of remelting, until coating outer surface temperature is down to 300 DEG C
Below；
(4) the oil pumping polish rod surface covering that previous step completes re melting process is processed by shot blasting；
(5) liquid containing pigment is filled into the inner hole of the tubing section until being full of, the fixed end is led to
It crosses preposition head external screw thread to link together with the tubing section internal screw thread, opens the seal head of the fixed end, use is hydraulic
Pump applies the seal head that the fixed end is closed after pressure makes the pressure in the liquid reach 0.05-0.30MPa；
(6) obtain it is of the present invention can early warning fracture occur alloy coating pumping rod/polish rod.
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| CN201710603187.8A CN107246244B (en) | 2017-07-22 | 2017-07-22 | It is a kind of can early warning fracture occur alloy coating pumping rod/polish rod and its processing technology |
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| CN201710603187.8A CN107246244B (en) | 2017-07-22 | 2017-07-22 | It is a kind of can early warning fracture occur alloy coating pumping rod/polish rod and its processing technology |
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| CN107246244B true CN107246244B (en) | 2019-01-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107974164B (en) * | 2017-11-23 | 2020-02-18 | 南京信息工程大学 | Friction coating with light-emitting early warning function and preparation method thereof |
| CN108710345B (en) * | 2018-04-03 | 2019-10-15 | 潍坊学院 | Workpiece alloy coating remelting control system and control method |
| CN109209342B (en) * | 2018-10-19 | 2022-02-22 | 北京工商大学 | Real-time detection device for surface cracks of polished pumping rod |
| CN111188578B (en) * | 2020-01-07 | 2021-05-25 | 北京工商大学 | Nickel-based alloy coating polished sucker rod with high-toughness clamping section and processing method thereof |
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|---|---|---|---|---|
| EP1243809A2 (en) * | 2001-03-23 | 2002-09-25 | Melton International L.L.C. | Self-chargeable pneumatic cylinder |
| CN2656603Y (en) * | 2003-11-13 | 2004-11-17 | 李洪福 | Anti-corrosion wear-proof sucker polish rod |
| CN2687305Y (en) * | 2003-08-29 | 2005-03-23 | 北京安东奥尔工程技术有限责任公司 | Anticorrosive anti-wear oil-pumping polish rod |
| CN102507591A (en) * | 2011-10-27 | 2012-06-20 | 上海交通大学 | Hydraulic early warning method and device for concrete structure |
| CN106522851A (en) * | 2016-11-03 | 2017-03-22 | 北京工商大学 | Two-section type spray-welded coating smooth sucker rod and machining process thereof |
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2017
- 2017-07-22 CN CN201710603187.8A patent/CN107246244B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1243809A2 (en) * | 2001-03-23 | 2002-09-25 | Melton International L.L.C. | Self-chargeable pneumatic cylinder |
| CN2687305Y (en) * | 2003-08-29 | 2005-03-23 | 北京安东奥尔工程技术有限责任公司 | Anticorrosive anti-wear oil-pumping polish rod |
| CN2656603Y (en) * | 2003-11-13 | 2004-11-17 | 李洪福 | Anti-corrosion wear-proof sucker polish rod |
| CN102507591A (en) * | 2011-10-27 | 2012-06-20 | 上海交通大学 | Hydraulic early warning method and device for concrete structure |
| CN106522851A (en) * | 2016-11-03 | 2017-03-22 | 北京工商大学 | Two-section type spray-welded coating smooth sucker rod and machining process thereof |
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