CN107246244A - 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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- CN107246244A CN107246244A CN201710603187.8A CN201710603187A CN107246244A CN 107246244 A CN107246244 A CN 107246244A CN 201710603187 A CN201710603187 A CN 201710603187A CN 107246244 A CN107246244 A CN 107246244A
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- 239000000956 alloy Substances 0.000 title claims abstract description 87
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 87
- 239000011248 coating agent Substances 0.000 title claims abstract description 76
- 238000000576 coating method Methods 0.000 title claims abstract description 76
- 238000005086 pumping Methods 0.000 title claims abstract description 57
- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 238000012545 processing Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 239000007787 solid Substances 0.000 claims abstract description 28
- 239000000049 pigment Substances 0.000 claims abstract description 12
- 239000011148 porous material Substances 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 8
- 239000011230 binding agent 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
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000007788 roughening Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 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
- 238000009987 spinning Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 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
- 235000009566 rice Nutrition 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 12
- 239000011159 matrix material Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 206010016256 fatigue Diseases 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 2
- 230000000246 remedial effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 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 base material and positioned at the ni base alloy coating of the substrate surface, the base material is a straight round bar of length, the base material is made up of solid bar section, tubing section and fixed termination, the steel tubing of 13 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 weld seam between the solid bar section and tubing section, linked together between the tubing section and the fixed termination by the way of screw thread.The processing of the oil pumping polish rod is not limited polished rod base material, and preparing for coating can be using the processing technology for spraying remelting or pre-bonded remelting.For the ni base alloy coating oil pumping polish rod that current oil field is widely applied the complex situations of fatigue fracture occur 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 can effectively solving to stop production caused by alloy coating pumping rod/polish rod occurs suddenly due to fracture with high workover treatment expense, helps to ensure the normal operation of oilfield.
Description
Technical field
The present invention relates to oil equipment, a kind of oil pumping polish rod is more particularly to.
Background technology
Oil pumping polish rod is one of part of oil field artificial lift oil recovery most critical, and the quality of its performance is directly related to oil well
Can normally it produce.Once generation polished rod breakage problem, it will cause oil well to stop production and carry out workover treatment, the dimension thus brought
Repair and to stop well economic loss huge.
Current oil field mainly solves it in oil recovery process using the higher ni base alloy coating oil pumping polish rod of hardness
Abrasion and etching problem, and formd corresponding product standard in the standard of API 11B and SY/T 5029.But, it is tired
Labor fracture remains the subject matter of puzzlement ni base alloy coating oil pumping polish rod failure, particularly 10 centimeters of models below optical-rod clamp
Enclosing region of stress concentration interior and its bent around turns into the occurrence of location of fatigue fracture.On the one hand, due to alloy coating pumping light
Metallurgical binding is used between bar and polished rod matrix, and the difference existed between coating and matrix on material causes under stress condition
Deformation, so as to cause fatigue fracture；On the other hand, alloy coat hardness is of a relatively high, under the deformation conditions such as bending
It is easy to crackle occur, and due to the metallurgical binding between coating and matrix, once Crack Extension enters behind polished rod base material top layer
Can be quick in intrinsic silicon extension, 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, have carried out including addition coating toughening element, using gradient coating technology and high fatigability
Many researchs in terms of energy polished rod base material so that the life-span of ni base alloy coating oil pumping polish rod obtains different degrees of raising,
But for ni base alloy coating oil pumping polish rod under arms during under different stress conditions and working environment fatigue fracture it is unexpected
The effective prediction occurred is also without effective method, and the unexpected stopping production for often meaning that oil well of polished rod fracture and high
Workover treatment expense, thus bring very big economic loss and management difficulty.Therefore for oilfield exploitation, it is badly in need of out
To send out a kind of effective to be broken the alloy coating pumping rod/polish rod of generating function with early warning.
The content of the invention
The technical problems to be solved by the invention are to overcome the deficiency of above-mentioned prior art disconnected with early warning there is provided one kind
Split the ni base alloy coating oil pumping polish rod of generating function.
According to the present invention provide it is a kind of can early warning fracture occur alloy coating pumping rod/polish rod, its major technique used
Scheme is：Including base material and positioned at the ni base alloy coating of the substrate surface, the base material is a straight round bar of length, the base material
It is made up of solid bar section, tubing section and fixed termination, the tubing section is located at solid bar section and the fixed termination
Between, one end of solid bar section be have on upset end, the termination of the upset end can be connected with rod collar outside
The liquid containing pigment is filled in screw thread, the steel tubing of 1-3 meters of the tubing Duan Weichang, the pore space of the tubing section,
Have long 10-50 millimeter weld seam between solid bar section and tubing section, the tubing section and the fixed termination it
Between linked together by the way of screw thread.
The present invention provide can early warning fracture occur alloy coating pumping rod/polish rod, also using following attached technical scheme：
The fixed termination is made up of pedestal, preposition head and seal head, and there is through hole the inside of the pedestal and the preposition head, institute
State through hole can with the tubing section communicate, a diameter of 1-3 millimeters of the through hole, the preposition head outer round surface have can with it is described
The external screw thread that tubing section endoporus is connected, the seal head can be opened and closed.
One end endoporus of the tubing section has the internal thread that can be connected with the fixed preposition head in termination, the tubing section
The micropore along tubing section cross-sectional diameter direction is distributed with remaining inner surface without internal thread.
Described in the micropore distance from bottom tubing section outer round surface radial distance be 0.5-3 millimeters, the micropore it is straight
Footpath is 0.05-0.10 millimeters, and the micropore is equidistantly distributed on the cross section of 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 material in body.
Pigmentary colours in the liquid are shiny red, and the granularity of the fluorescent material 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 into being grouped into：C：0%~0.80%, Si：
2.0%~4.0%, B：1.5%~4.5%, Cr：5.0%~15.0%, Fe≤5.0%, surplus is nickel.
The processing that is there is provided according to the present invention is above-mentioned can the technique of alloy coating pumping rod/polish rod that occurs of early warning fracture, main bag
Include following steps：
（1）Micropore is processed using machining or laser technology on request in tubing section inner surface, and in tubing section
One end machining internal thread；
（2）Tubing section and 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 external diameter of itself and tubing section and solid bar section, will
The tubing section and the greasy dirt of the outer surface of solid bar section welded together is cleaned after drying, is derusted and is roughened
Processing；
（3）By the way of surfacing ni base alloy coating is prepared in polished rod substrate surface：Co-based alloy powder is sprayed on first
By the polished rod substrate surface of 100-200 DEG C of the pre-heat treatment, then spraying nickel-base alloy powder is realized by the way of high-temperature heating
The remelting at end；The preparation of ni base alloy coating can also be realized by the way of pre-bonded-remelting：By Co-based alloy powder with having
Machine binding agent is well mixed, and is coated in the Co-based alloy powder containing binding agent only by respective thickness requirement using mechanical means
Solid bar section and tubing section outer surface after change and roughening treatment, then carry out nickel by the way of sensing heating
The re melting process of base alloy powder, makes the hull-skin temperature of alloy powder reach 950-1100 DEG C, when light occurs in its surface
Remelting terminates during minute surface, and the polished rod is around its axle center spinning during the entire process of remelting, until coating outer surface temperature is down to
Less than 300 DEG C；
（4）The oil pumping polish rod face coat that previous step is completed into re melting process is processed by shot blasting；
（5）The liquid containing pigment is filled into the endoporus of tubing section until full of the fixed termination is led to
Cross preposition head external screw thread to link together with tubing section internal thread, the seal head of the fixed termination is opened, using hydraulic pressure
Pump applies pressure and causes the pressure in the liquid to reach the seal head for closing the fixed termination after 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 the present invention provide it is a kind of can the alloy coating pumping rod/polish rod that occurs of early warning fracture and its processing technology, it is and existing
There is technology to compare to have the following advantages that：
1st, alloy coating pumping rod/polish rod itself of the invention has the function that early warning fracture occurs, by containing pigment and fluorescent material
Liquid the form of crack morphology is directly displayed on ni base alloy coating surface come embody crackle appearance position and depth, realize
The direct early warning that fracture occurs, using and changing reference is provided for oil pumping polish rod.
2nd, 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 send early warning in advance for fracture.Due to being metallurgical junction between ni base alloy coating pumping oil polish rod coating and matrix
Close, fatigue crack will be broken within a short period of time after once expanding into base material, therefore how quick and precisely be predicted
Fatigue crack into matrix skin is its key point.Polished rod base material in the present invention is using " fixed termination-tubing section-real
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 100mm regional fractures actual conditions occurred frequently below optical-rod clamp.
, will be in tubing section liquid when connect with the micropore bottom in tubing section when crack Propagation enters polished rod base material top layer
The shiny red liquid containing fluorescent material is expressed among crackle rapidly in the presence of precompression, and appeared in along crackle passage
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 be observed in larger distance, so that the generation for the fracture that gives warning in advance, is that oil field adopts remedial measures offer accordingly
Time.
3rd, the micropore of tubing section is designed in the present invention, it is ensured that ni base alloy coating oil pumping polish rod fatigue fracture warning function
Efficient and reliability.First, micropore is along the base material cross-sectional diameter directional spreding, in the horizontal stroke of tubing section inner surface
Equidistantly distributed on section, quantity of the micropore on the same cross section of tubing section inner surface is at least 3, can be with
Realize the random appearance for efficiently finding fatigue crack.Due to fatigue crack when coat inside extends also in polished rod fatigue fracture
Initial stage, and when fatigue crack enter polished rod base material top layer after fatigue crack expansion rate will substantially accelerate, therefore prediction
The stage is extremely important.The outer wall of heretofore described micropore not completely through 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 meeting alloy coating pumping rod/polish rod well
Fracture characteristics, can timely and accurately detect the fatigue crack into polished rod base material top layer.
4th, 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 in the distant surveillance of crack morphology, liquid using bright-coloured shiny red and adds fluorescence
Powder can realize that night can also easily find crack warning, and the granularity of fluorescent material can realize it in fatigue for 50-200 nanometers
Passing freely through in crackle, with reference to 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.
5th, in the present invention can the processing technology of alloy coating pumping rod/polish rod that occurs of early warning fracture there is good compatibility,
Polished rod base material can not limited using alloy coat spraying-remelting and pre-bonded-remelting both main preparation technologies,
It is easy to use and promotes.
Brief description of the drawings
Fig. 1 is the polished rod overall structure diagram of the present invention.
The polished rod that Fig. 2 is the present invention fixes end structure schematic diagram.
Fig. 3 is the polished rod tubing segment structure schematic diagram of the present invention.
Fig. 4 is the polished rod tubing section microcellular structure schematic diagram of the present invention.
Embodiment
Referring to Fig. 1, according to the present invention provide it is a kind of can early warning be broken the alloy coating pumping rod/polish rod embodiment that occurs, bag
Base material 1 and the ni base alloy coating 2 positioned at the surface of base material 1 are included, the base material 1 is a straight round bar of length, and the base material 1 is by reality
Axle material section 3, tubing section 4 and fixed termination 5 are constituted, and the tubing section 4 is located at solid bar section 3 and the fixed termination
Between 5, one end of the solid bar section 3 is to have and can be connected with rod collar on upset end 6, the termination of the upset end 6
External screw thread 7, tubing section 4 is to fill containing pigment in long 1-3 meter of steel tubing, the pore space of the tubing section 4
Liquid 8, have long 10-50 millimeter weld seam 9, the tubing section 4 and institute between solid bar section 3 and tubing section 4
State and linked together by the way of screw thread between fixed termination 5.Polished rod base material 1 in the present invention is using " fixed termination 5- pipes
The three stage structure of material section 4- solid bars section 3 " is very suitable for the early warning before ni base alloy coating oil pumping polish rod is broken,
It is occurred frequently that the Design of length of 1-3 meters of tubing section covers alloy coating pumping rod/polish rod 100mm regional fractures below optical-rod clamp
Actual conditions, and consider optical-rod clamp possible change in location under the conditions of different oil well conditions.Fixed termination 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 directly displays the form of crack morphology on ni base alloy coating surface to embody position and the depth of crackle appearance,
The direct early warning that fracture occurs is realized, using and changing reference is provided for oil pumping polish rod.
Referring to Fig. 2, according to the above embodiments of the present invention, the fixed termination 5 is by pedestal 51, preposition first 52 and seal head
There is through hole 54 53 compositions, the pedestal 51 and preposition first 52 inside, and the through hole 54 can be communicated with tubing section 4,
A diameter of 1-3 millimeters of the through hole 54, preposition first 52 outer round surface has can be connected with the tubing 4 endoporus of section outer
Screw thread 55, the seal head 53 can be opened and closed.More than design can realize to tubing section 4 endoporus in liquid 8 supplement and
The application and later maintenance of precompression.
Referring to Fig. 3 and Fig. 4, according to the above embodiments of the present invention, one end endoporus of tubing section 4 have can with it is described solid
The internal thread 41 that fixed end first 5 preposition first 52 is connected, remaining inner surface without internal thread of the tubing section is 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 the distance from bottom of micropore 42
For 0.5-3 millimeters, not completely through the outer wall of tubing section 4, such design meets alloy coating pumping rod/polish rod well
Fatigue Fracture Characteristics, more than reflect alloy coat in crackle expansion depth, it is often more important that can timely and accurately examine
Measure into the fatigue crack in the top layer of polished rod base material 1, so as to accurately send fatigue fracture early warning.The micropore 42 it is a diameter of
0.05-0.10 millimeters, the micropore 42 is equidistantly distributed in the tubing 4 cross-section inner surfaces of section, and the micropore 42 is described
Quantity on the same cross section of tubing 4 inner surfaces of section is at least 3, and the micropore 42 is in the tubing 4 inner surface length of section
The quantity in direction can be set as needed, so as to realize the fatigue crack for finding to occur at random in time.
Referring to Fig. 1, according to the above embodiments of the present invention, the institute containing pigment in the pore space of the tubing section 4
Liquid 8 is stated for low temperature resistant low-viscosity (mobile) liquid, contains fluorescent material in the liquid.Fluorescent material is added in liquid can realize at night
Between easily find the crackle on alloy coat surface, with reference to 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, the granularity of the fluorescent material is 50-
200 nanometers, it is possible to achieve its passing freely through in fatigue crack.Pressure in the liquid 8 is 0.05-0.30MPa.Due to
It is metallurgical binding between ni base alloy coating pumping oil polish rod coating 2 and matrix 1, fatigue crack once expands into polished rod base material 1
It will within a short period of time be broken afterwards, therefore how quick and precisely predict that the fatigue crack into matrix skin is its pass
Where key.When crack Propagation enter the top layer of polished rod base material 1, once with tubing section 4 in the bottom of micropore 42 connect when will
The shiny red liquid 8 containing fluorescent material is expressed among crackle rapidly in the presence of tubing section liquid precompression, and along
Crackle passage appears in the outer surface of coating 2 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, is that oil field is taken
Remedial measure provides the corresponding time.
By percentage to the quality, powder used in the ni base alloy coating 2 into being grouped into：C：0%~0.80%, Si：
2.0%~4.0%, B：1.5%~4.5%, Cr：5.0%~15.0%, Fe≤5.0%, surplus is nickel.
The processing that is there is provided according to the present invention is above-mentioned can the technique of alloy coating pumping rod/polish rod that occurs of early warning fracture, main bag
Include following steps：
（1）Micropore 42 is processed using machining or laser technology on request in the tubing 4 inner surfaces of section, and in tubing section
4 one end machining internal thread 41；
（2）Tubing section 4 and solid bar section 3 are welded together using inertia friction Welding, and added using machine
The surface of weld seam 9 is carried out grinding process by work means, the external diameter of itself and tubing section 4 and solid bar section 3 is kept one
Cause, the greasy dirt of the tubing welded together section 4 and the outer surface of solid bar section 3 is cleaned after drying, removed
Rust and roughening treatment；
（3）By the way of surfacing ni base alloy coating 2 is prepared on the surface of polished rod base material 1：Co-based alloy powder is sprayed first
On the surface of polished rod base material 1 by 100-200 DEG C of the pre-heat treatment, then spraying nickel-base alloy is realized by the way of high-temperature heating
The remelting of powder；The preparation of ni base alloy coating 2 can also be realized by the way of pre-bonded-remelting：By Co-based alloy powder
It is well mixed, is coated the Co-based alloy powder containing binding agent by respective thickness requirement with organic binder bond using mechanical means
4 outer surfaces of solid bar section 3 and tubing section after purification and roughening treatment, then by the way of sensing heating
The re melting process of Co-based alloy powder is carried out, the hull-skin temperature of alloy powder is reached 950-1100 DEG C, when its surface occurs
Remelting terminates during the minute surface of light, and the polished rod is around its axle center spinning during the entire process of remelting, until coating outer surface temperature
Degree is down to less than 300 DEG C, and the processing technology has good compatibility, can use spraying-remelting and pre-bonded-remelting both
Main alloy coat preparation technology, does not limit polished rod base material, is easy to application；
（4）The oil pumping polish rod face coat 2 that previous step is completed into re melting process is processed by shot blasting；
（5）The liquid 8 containing pigment is filled into the endoporus of the tubing section 4 until full of by the fixed termination 5
Linked together by preposition head external screw thread 55 with tubing section internal thread 41, open the seal head 53 of the fixed termination,
Applying pressure using hydraulic pump causes the pressure in the liquid 8 reaches to close the close of the fixed termination after 0.05-0.30MPa
The presence of precompression can make the liquid 8 rapidly enter crackle passage in time in end socket 53, liquid, so that in alloy coat table
Face sends early warning；
（6）Obtain it is of the present invention can early warning fracture occur alloy coating pumping rod/polish rod.
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
Appended claims and its equivalent are limited.
Claims (9)
1. a kind of can the alloy coating pumping rod/polish rod that occurs of early warning fracture, including base material and the Ni-based conjunction positioned at the substrate surface
Gold plating, the base material is a straight round bar of length, it is characterised in that：The base material is by solid bar section, tubing section and fixed termination
Composition, the tubing section is located between solid bar section and the fixed termination, and one end of the solid bar section is upsetting
There are the external screw thread that can be connected with rod collar, the steel of 1-3 meters of the tubing Duan Weichang on butt end, the termination of the upset end
The liquid containing pigment is filled in tubing, the pore space of the tubing section, between the solid bar section and tubing section
There is long 10-50 millimeters weld seam, linked together between the tubing section and the fixed termination by the way of screw thread.
2. it is as claimed in claim 1 it is a kind of can the alloy coating pumping rod/polish rod that occurs of early warning fracture, it is characterised in that：It is described solid
Fixed end head is made up of pedestal, preposition head and seal head, and there is a through hole inside of the pedestal and the preposition head, and the through hole can be with
The tubing section is communicated, a diameter of 1-3 millimeters of the through hole, and the preposition head outer round surface has can be with tubing section endoporus
The external screw thread being connected, the seal head can be opened and closed.
3. it is as claimed in claim 1 it is a kind of can the alloy coating pumping rod/polish rod that occurs of early warning fracture, it is characterised in that：The pipe
One end endoporus of material section has an internal thread that can be connected with the fixed preposition head in termination, the tubing section remaining without internal thread
The micropore along tubing section cross-sectional diameter direction is distributed with inner surface.
4. it is as claimed in claim 3 it is a kind of can the alloy coating pumping rod/polish rod that occurs of early warning fracture, it is characterised in that：It is described micro-
The radial distance of tubing section outer round surface is 0.5-3 millimeters described in the distance from bottom of hole, a diameter of 0.05-0.10 millis of the micropore
Rice, the micropore is equidistantly distributed on the cross section of tubing section inner surface, and the micropore is in tubing section inner surface
Same cross section on quantity be at least 3.
5. it is as claimed in claim 1 it is a kind of can the alloy coating pumping rod/polish rod that occurs of early warning fracture, 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.
6. it is as claimed in claim 5 it is a kind of can the alloy coating pumping rod/polish rod that occurs of early warning fracture, it is characterised in that：The liquid
Pigmentary colours in body are shiny red, and the granularity of the fluorescent material is 50-200 nanometers.
7. it is as claimed in claim 1 it is a kind of can the alloy coating pumping rod/polish rod that occurs of early warning fracture, it is characterised in that：The liquid
Pressure in body is 0.05-0.30MPa.
8. it is as claimed in claim 1 it is a kind of can the alloy coating pumping rod/polish rod that occurs of early warning fracture, it is characterised in that：With quality
Percentages, powder used in the ni base alloy coating into being grouped into：C：0%~0.80%, Si：2.0%~4.0%, B：
1.5%~4.5%, Cr：5.0%~15.0%, Fe≤5.0%, surplus is nickel.
9. it is a kind of process claim 1-8 any one described in can early warning fracture occur alloy coating pumping rod/polish rod work
Skill, is mainly included the following steps that：
（1）Micropore is processed using machining or laser technology on request in tubing section inner surface, and in tubing section
One end machining internal thread；
（2）Tubing section and 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 external diameter of itself and tubing section and solid bar section, will
The tubing section and the greasy dirt of the outer surface of solid bar section welded together is cleaned after drying, is derusted and is roughened
Processing；
（3）By the way of surfacing ni base alloy coating is prepared in polished rod substrate surface：Co-based alloy powder is sprayed on first
By the polished rod substrate surface of 100-200 DEG C of the pre-heat treatment, then spraying nickel-base alloy powder is realized by the way of high-temperature heating
The remelting at end；The preparation of ni base alloy coating can also be realized by the way of pre-bonded-remelting：By Co-based alloy powder with having
Machine binding agent is well mixed, and is coated in the Co-based alloy powder containing binding agent only by respective thickness requirement using mechanical means
Solid bar section and tubing section outer surface after change and roughening treatment, then carry out nickel by the way of sensing heating
The re melting process of base alloy powder, makes the hull-skin temperature of alloy powder reach 950-1100 DEG C, when light occurs in its surface
Remelting terminates during minute surface, and the polished rod is around its axle center spinning during the entire process of remelting, until coating outer surface temperature is down to
Less than 300 DEG C；
（4）The oil pumping polish rod face coat that previous step is completed into re melting process is processed by shot blasting；
（5）The liquid containing pigment is filled into the endoporus of tubing section until full of the fixed termination is led to
Cross preposition head external screw thread to link together with tubing section internal thread, the seal head of the fixed termination is opened, using hydraulic pressure
Pump applies pressure and causes the pressure in the liquid to reach the seal head for closing the fixed termination after 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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| Application Number | Priority Date | Filing Date | Title |
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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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| CN107974164A (en) * | 2017-11-23 | 2018-05-01 | 南京信息工程大学 | A kind of friction coatings with the warning function that shines and preparation method thereof |
| CN108710345A (en) * | 2018-04-03 | 2018-10-26 | 潍坊学院 | Workpiece alloy coating remelting control system and control method |
| CN109209342A (en) * | 2018-10-19 | 2019-01-15 | 北京工商大学 | A kind of oil pumping polish rod face crack real-time detection apparatus |
| CN111188578A (en) * | 2020-01-07 | 2020-05-22 | 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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| 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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