CN103495839B - The processing method of what a kind of built-up welding was shaping make a trip fast drilling rod height station structure - Google Patents
The processing method of what a kind of built-up welding was shaping make a trip fast drilling rod height station structure Download PDFInfo
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- CN103495839B CN103495839B CN201310440256.XA CN201310440256A CN103495839B CN 103495839 B CN103495839 B CN 103495839B CN 201310440256 A CN201310440256 A CN 201310440256A CN 103495839 B CN103495839 B CN 103495839B
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- 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
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- 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
- E21B17/01—Risers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention relates to drilling rod, the processing method of the drilling rod height station structure that makes a trip fast that particularly a kind of built-up welding is shaping.It has employed the combined molding method first thickening rear built-up welding, and high station structure adds overlay cladding by body thickening layer and forms.It effectively improves the working (machining) efficiency of high station structure drilling rod, reduces the gentle production cost of material water consumption.
Description
Technical field
The present invention relates to drilling rod, the processing method of the drilling rod height station structure that makes a trip fast that particularly a kind of built-up welding is shaping.
Background technology
Drilling rod is the necessary instrument of petroleum gas drilling.Drilling rod is divided into drill pipe body, male joint, female joint three part from structure, and pin and box sub integrally forms drilling rod through being welded to connect, and the screw thread by pin and box sub between drilling rod spins, and form drill string, drill string mainly plays transmitting torque and circulation of drilling fluid effect.Generally adopt the API series standard of American Petroleum Institute (API) in the world, therefore also referred to as API drilling rod or standard drill pipe.API standard drill pipe female joint shoulder place fixes station as upper shackle, highly lower, and cause driller's necessary stoop labor when upper shackle, labour intensity is large, and operating efficiency is low.The special drill pipe with high station structure, by increasing clamping structure below female joint, improves shackle operation station on drilling rod, improves shackle working condition.Current high station structure drilling rod adopts the shaping method of special thick-walled pipe turning to process, and because Lathe quantity is large, not only waste material, working (machining) efficiency is low, and processing charges is high.
Summary of the invention
The processing method of the drilling rod height station structure that makes a trip fast that the object of the present invention is to provide a kind of built-up welding shaping, mainly solve the defect existing for above-mentioned prior art, it effectively improves the working (machining) efficiency of high station structure drilling rod, reduces the gentle production cost of material water consumption.
For achieving the above object, technical scheme of the present invention is:
A processing method for what built-up welding was shaping make a trip fast drilling rod height station structure, is characterized in that: it have employed and first thicken after the combined molding method of built-up welding, high station structure adds overlay cladding by body thickening layer and forms.
The processing method of what described built-up welding was shaping make a trip fast drilling rod height station structure, is characterized in that: specific embodiment is as follows:
A carries out the original shaping of high station structure to mother tube, forms high station structure initial configuration;
B carries out multiple-bead deposit on high station initial configuration, forms high station overlaying structure;
The finish turning processing of C height station structure, final formation drilling rod height station structure;
D carries out modifier treatment to high station overlaying structure.
The processing method of what described built-up welding was shaping make a trip fast drilling rod height station structure, is characterized in that: the concrete operation of described steps A is as follows:
The first selected mother tube of A1, the long 50 ~ 90mm of the more common drill pipe body of its length;
A2 thickeies Len req etc. according to the height of the position of high station structure, length, required high station structure, body two ends, determines effective heated length and heating location; Under normal circumstances, the edge nearby of high station structure, the length of distance tool joint weld seam is 400mm;
A3 adds hot upset forging to the position determined, under the control of outer mold, carry out external upset (EU), and namely tube wall outside increases wall thickness, adds hot upset forging, form high station structure initial configuration through 1 ~ 2 passage; The high station structure initial configuration formed, its external diameter comparatively body increases by 10 ~ 15mm.
The processing method of what described built-up welding was shaping make a trip fast drilling rod height station structure, is characterized in that: the concrete operation of described step B is as follows:
B1 carries out surface treatment to the high station structure initial configuration that previous step is formed, and scrubs, rust cleaning of polishing through wire brush, removes the oxide skin etc. on surface, also can carry out shot derusting by sandblasting;
B2 carries out surface overlaying.
The processing method of what described built-up welding was shaping make a trip fast drilling rod height station structure, it is characterized in that: weld in described step B2 and preheating is carried out to surfacing part, preheat temperature is 300 ~ 350 DEG C, welding wire is through drying and processing, use multifibres automatic submerged arc welding to carry out butt welding operation, welding wire select with to the close 26GrMo of body composition; During ground floor built-up welding, small area analysis, low-voltage, overlay cladding remains on 3 ~ 4mm, carries out welding slag cleaning after ground floor completes, and carry out second layer built-up welding after slag cleaning, built-up welding THICKNESS CONTROL is at 4 ~ 6mm; After two layers of built-up welding complete, form the high station overlaying structure that thickness is 24 ~ 25mm; Carry out annealing in process, annealing temperature is 680 ~ 750 DEG C; Overlay cladding, if there is when the defect such as not merge, lack of penetration, re-starts repair welding after needing polishing.
The processing method of what described built-up welding was shaping make a trip fast drilling rod height station structure, it is characterized in that: after in described step C, high station overlaying structure is formed, the thickness formed is greater than design thickness 2 ~ 3mm, needs the turnery processing carrying out accurate dimension, forms drilling rod height station structure after turning.
The processing method of what described built-up welding was shaping make a trip fast drilling rod height station structure, it is characterized in that: in described step D after bar height station structure machines, need to carry out modifier treatment to overlay cladding, antipyretic equipment adopts at intermediate-frequency heating furnace, and hardening media is water; Hot temperature degree 850 ~ 950 DEG C, temperature retention time 5 ~ 10 minutes; Temperature 550 ~ 650 DEG C.
The present invention has innovated the processing method of high station structure in a kind of high station structure drilling rod, that is: by upsetting thickening+built-up welding+finish turning+heat treated processing method, effectively improve the working (machining) efficiency of high station structure drilling rod, reduce the gentle production cost of material water consumption.
Accompanying drawing explanation
Fig. 1 is the high station structure initial configuration schematic diagram through upsetting formation in present invention process.
Fig. 2 is through the structural representation of the shaping drilling rod height station structure that makes a trip fast of built-up welding of present invention process processing.
In figure: 1-thickeies thickening; 2-piles welding zone.
Detailed description of the invention
The invention provides the processing method of the shaping drilling rod height station structure that makes a trip fast of a kind of built-up welding.Specific embodiment is as follows:
A carries out the original shaping of high station structure to mother tube, forms high station structure initial configuration.
The first selected mother tube of A1, the long 50 ~ 90mm of the more common drill pipe body of its length.
A2 second step: thicken Len req etc. according to the height of the position of high station structure, length, required high station structure, body two ends, determine effective heated length and heating location; Under normal circumstances, the edge nearby of high station structure, the length of distance tool joint weld seam is 400mm.
A3 adds hot upset forging to the position determined, carries out external upset (EU) (i.e. tube wall outside increase wall thickness) under the control of outer mold, adds hot upset forging through 1 ~ 2 passage, forms high station structure initial configuration.The high station structure initial configuration formed, its external diameter comparatively body increases by 10 ~ 15mm.For 5 inches of mother tubes, use 180KW intermediate-frequency heating furnace, 500/1000 ton of horizontal thickening unit, add thickness rate 1.3 ~ 1.35, heating through two passages thickeies, and the external diameter at selected position reaches 139 ~ 140mm, and wall thickness increases to 15.53mm from 9.19, the part (length be 90 ± 10mm, external diameter 140mm) exceeding tube surfaces formed is high station structure initial configuration (Fig. 1 is through the high station structure initial configuration that upsetting is formed, and thickening thickening is label 1).
B carries out multiple-bead deposit on high station initial configuration, forms high station overlaying structure.
Based on high station structure, implement multiple-bead deposit, form high station overlaying structure.Specific implementation process is:
B1 carries out surface treatment to the high station structure initial configuration that previous step is formed, and scrubs, rust cleaning of polishing through wire brush, removes the oxide skin etc. on surface, also can carry out shot derusting by sandblasting.
B2 carries out surface overlaying.Weld in described step B2 and carry out preheating to surfacing part, preheat temperature is 300 ~ 350 DEG C, and welding wire, through drying and processing, uses multifibres automatic submerged arc welding to carry out butt welding operation, welding wire select with to the close 26GrMo of body composition; During ground floor built-up welding, small area analysis, low-voltage, overlay cladding remains on 3 ~ 4mm, carries out welding slag cleaning after ground floor completes, and carry out second layer built-up welding after slag cleaning, built-up welding THICKNESS CONTROL is at 4 ~ 6mm; After two layers of built-up welding complete, form the high station overlaying structure that thickness is 24 ~ 25mm; Carry out annealing in process, annealing temperature is 680 ~ 750 DEG C; Overlay cladding, if there is when the defect such as not merge, lack of penetration, re-starts repair welding after needing polishing.
The finish turning processing of C height station structure, final formation drilling rod height station structure.
After high station overlaying structure is formed, the thickness of formation is greater than design thickness 2 ~ 3mm, needs the turnery processing carrying out accurate dimension, forms drilling rod height station structure after turning.
D carries out modifier treatment to high station overlaying structure;
After drilling rod height station structure machines, need to carry out modifier treatment to overlay cladding, antipyretic equipment adopts at intermediate-frequency heating furnace, and hardening media is water.Heating-up temperature 850 ~ 950 DEG C, temperature retention time 5 ~ 10 minutes; Temperature 550 ~ 650 DEG C.
What the built-up welding be processed to form through the inventive method was shaping make a trip fast drilling rod height station structure (label thickening thickening is 1, and the label of heap welding zone is 2) as shown in Figure 2.This high station structure can be made up of the transition circle cone being positioned at middle cylinder and both sides, and the tapering of two cones is respectively 18 degree, 35 degree.In addition, have the high station structure drilling rod of the inventive method processing, except thick section, body section portion, thicken except changeover portion, high station structure, body remainder wall thickness is identical.
Invention has been described processing method and the process of drilling rod height station structure, drill pipe body two ends thicken, the welding of body and joint, body heat treatment, the process such as weld seam heat treatment, the same with the process of common drilling rod.
The foregoing is only preferred embodiment of the present invention, be not used for limiting practical range of the present invention.Namely all equivalences done according to the content of the present patent application the scope of the claims change and modify, and all should be technology category of the present invention.
Claims (7)
1. a processing method for the drilling rod height station structure that makes a trip fast that built-up welding is shaping, is characterized in that: it have employed the combined molding method that first upsetting thickeies rear built-up welding, and high station structure adds overlay cladding by body thickening layer and forms.
2. the processing method of the drilling rod height station structure that makes a trip fast that built-up welding according to claim 1 is shaping, is characterized in that: specific embodiment is as follows:
A carries out the original shaping of high station structure to mother tube, forms high station structure initial configuration;
B carries out multiple-bead deposit on high station initial configuration, forms high station overlaying structure;
The finish turning processing of C height station structure, final formation drilling rod height station structure;
D carries out modifier treatment to high station overlaying structure.
3. the processing method of the drilling rod height station structure that makes a trip fast that built-up welding according to claim 2 is shaping, is characterized in that: the concrete operation of described steps A is as follows:
The first selected mother tube of A1, the long 50 ~ 90mm of the more common drill pipe body of its length;
A2 thickeies Len req according to the height of the position of high station structure, length, required high station structure, body two ends, determines effective heated length and heating location; Under normal circumstances, the edge nearby of high station structure, the length of distance tool joint weld seam is 400mm;
A3 adds hot upset forging to the position determined, under the control of outer mold, carry out external upset (EU), and namely tube wall outside increases wall thickness, adds hot upset forging, form high station structure initial configuration through 1 ~ 2 passage; The high station structure initial configuration formed, its external diameter comparatively body increases by 10 ~ 15mm.
4. the processing method of the drilling rod height station structure that makes a trip fast that built-up welding according to claim 2 is shaping, is characterized in that: the concrete operation of described step B is as follows:
B1 carries out surface treatment to the high station structure initial configuration that previous step is formed, and scrubs, rust cleaning of polishing through wire brush, removes the oxide skin on surface, also can carry out shot derusting by sandblasting;
B2 carries out surface overlaying.
5. the processing method of the drilling rod height station structure that makes a trip fast that built-up welding according to claim 4 is shaping, it is characterized in that: in described step B2, preheating is carried out to surfacing part, preheat temperature is 300 ~ 350 DEG C, welding wire is through drying and processing, use multifibres automatic submerged arc welding to carry out butt welding operation, welding wire select with to the close 26GrMo of body composition; During ground floor built-up welding, small area analysis, low-voltage, overlay cladding remains on 3 ~ 4mm, carries out welding slag cleaning after ground floor completes, and carry out second layer built-up welding after slag cleaning, built-up welding THICKNESS CONTROL is at 4 ~ 6mm; After two layers of built-up welding complete, form the high station overlaying structure that thickness is 24 ~ 25mm; Carry out annealing in process, annealing temperature is 680 ~ 750 DEG C; Overlay cladding if there is not merging, incomplete penetration defect time, re-start repair welding after needing polishing.
6. the processing method of the drilling rod height station structure that makes a trip fast that built-up welding according to claim 2 is shaping, it is characterized in that: after in described step C, high station overlaying structure is formed, the thickness formed is greater than design thickness 2 ~ 3mm, need the turnery processing carrying out accurate dimension, after turning, form drilling rod height station structure.
7. the processing method of the drilling rod height station structure that makes a trip fast that built-up welding according to claim 2 is shaping, it is characterized in that: in described step D after bar height station structure machines, need to carry out modifier treatment to overlay cladding, antipyretic equipment adopts at intermediate-frequency heating furnace, and hardening media is water; Hot temperature degree 850 ~ 950 DEG C, temperature retention time 5 ~ 10 minutes; Temperature 550 ~ 650 DEG C.
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| CN103495839B true CN103495839B (en) | 2015-11-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1194328A (en) * | 1998-04-24 | 1998-09-30 | 辽河石油勘探局钻井一公司 | Technology for producing non-standard size integrated-joint petroleum casing |
| US7243717B2 (en) * | 2002-08-05 | 2007-07-17 | Intelliserv, Inc. | Apparatus in a drill string |
| RU2334156C1 (en) * | 2007-07-19 | 2008-09-20 | Закрытое акционерное общество Компания "Темерсо" | Collar with connecting locks |
| CN201354592Y (en) * | 2009-02-23 | 2009-12-02 | 中国石油化工股份有限公司江苏油田分公司石油工程技术研究院 | Drill rod |
| CN201687404U (en) * | 2010-04-27 | 2010-12-29 | 无锡法斯特能源开发科技有限公司 | Drill stem pipe end thickened structure |
| CN102343471A (en) * | 2010-07-29 | 2012-02-08 | 上海图博可特石油管道涂层有限公司 | Overlaying process of drilling tool for petroleum extraction |
-
2013
- 2013-09-24 CN CN201310440256.XA patent/CN103495839B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1194328A (en) * | 1998-04-24 | 1998-09-30 | 辽河石油勘探局钻井一公司 | Technology for producing non-standard size integrated-joint petroleum casing |
| US7243717B2 (en) * | 2002-08-05 | 2007-07-17 | Intelliserv, Inc. | Apparatus in a drill string |
| RU2334156C1 (en) * | 2007-07-19 | 2008-09-20 | Закрытое акционерное общество Компания "Темерсо" | Collar with connecting locks |
| CN201354592Y (en) * | 2009-02-23 | 2009-12-02 | 中国石油化工股份有限公司江苏油田分公司石油工程技术研究院 | Drill rod |
| CN201687404U (en) * | 2010-04-27 | 2010-12-29 | 无锡法斯特能源开发科技有限公司 | Drill stem pipe end thickened structure |
| CN102343471A (en) * | 2010-07-29 | 2012-02-08 | 上海图博可特石油管道涂层有限公司 | Overlaying process of drilling tool for petroleum extraction |
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| CN103495839A (en) | 2014-01-08 |
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