CN103495839A - Machining method of quick-trip drill pipe high-position structure formed in built-up welding mode - Google Patents
Machining method of quick-trip drill pipe high-position structure formed in built-up welding mode Download PDFInfo
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- CN103495839A CN103495839A CN201310440256.XA CN201310440256A CN103495839A CN 103495839 A CN103495839 A CN 103495839A CN 201310440256 A CN201310440256 A CN 201310440256A CN 103495839 A CN103495839 A CN 103495839A
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- high station
- welding
- built
- station structure
- drilling rod
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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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention relates to drill pipes, in particular to a machining method of a quick-trip drill pipe high-position structure formed in a built-up welding mode. According to the machining method, the combined forming method that thickening is conducted firstly and then built-up welding is conducted is adopted, and the high-position structure is composed of a pipe body, a thickened layer and a built-up welding layer. The machining method effectively improves machining efficiency of the drill pipes of the high-position structure, and reduces the material consumption level and production cost.
Description
Technical field
The present invention relates to drilling rod, particularly a kind of processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding.
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 parts from structure, and pin and box sub is through being welded to connect into the whole drilling rod that forms, and the screw thread by pin and box sub between drilling rod spins, and forms drill string, and drill string mainly plays transmitting torque and circulation of drilling fluid effect.Generally adopt in the world the API series standard of American Petroleum Institute (API), therefore also referred to as API drilling rod or standard drilling rod.API standard tool joint box shoulder place fixes station as upper shackle, highly lower, causes driller's necessary stoop labor when upper shackle, and labour intensity is large, and operating efficiency is low.There is the special drill pipe of high station structure by increase clamping structure below female joint, improved shackle operation station on drilling rod, improved upper shackle working condition.Current high station structure drilling rod adopts the method for special thick-walled pipe turning moulding to be processed, and because the turning amount is large, not only wastes material, and working (machining) efficiency is low, and processing charges is high.
Summary of the invention
The object of the present invention is to provide a kind of processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding, mainly solve the existing defect of above-mentioned prior art, it has effectively improved the working (machining) efficiency of high station structure drilling rod, has reduced the gentle production cost of material water consumption.
For achieving the above object, technical scheme of the present invention is:
A kind of processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding is characterized in that: it has adopted the combined molding method of the first rear built-up welding of thickening, and high station structure adds overlay cladding by the body thickening layer and forms.
The processing method of the high station structure of drilling rod that makes a trip fast of described built-up welding moulding, it is characterized in that: specific embodiment is as follows:
A carries out the original shaping of high station structure to mother tube, form 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 the high station structure of C, finally form the high station structure of drilling rod;
D carries out modifier treatment to high station overlaying structure.
The processing method of the high station structure of drilling rod that makes a trip fast of described built-up welding moulding is characterized in that: the concrete operation of described steps A is as follows:
The at 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 position, length, the height of required high station structure, the body two ends of high station structure, determines effective heated length and heating location; Generally, the edge nearby of high station structure, be 400mm apart from the length of tool joint weld seam;
A3 is added hot upset forging to definite position, externally under the control of mould, carries out external upset (EU), and the outside wall thickness that increases of tube wall, through the hot upset forging that adds of 1～2 passage, form high station structure initial configuration; The high station structure initial configuration formed, its external diameter increases by 10～15mm than body.
The processing method of the high station structure of drilling rod that makes a trip fast of described built-up welding moulding is characterized in that: the concrete operation of described step B is as follows:
The high station structure initial configuration that B1 forms previous step carries out surface treatment, through the wire brush rust cleaning of scrubbing, polish, removes surperficial oxide skin etc., also can carry out the shot derusting by sandblasting;
B2 carries out surface overlaying.
The processing method of the high station structure of drilling rod that makes a trip fast of described built-up welding moulding, it is characterized in that: in described step B2, weldering is carried out preheating to surfacing part, preheat temperature is 300～350 ℃, welding wire is through drying and processing, use multifibres automatic submerged arc welding to carry out the butt welding operation, welding wire is selected and the 26GrMo approaching to the body composition; During the ground floor built-up welding, little electric current, low-voltage, overlay cladding remains on 3～4mm, after ground floor completes, carries out the welding slag cleaning, after the slag cleaning, carries out second layer built-up welding, and the built-up welding THICKNESS CONTROL is at 4～6mm; After two layers of built-up welding complete, the high station overlaying structure that formation thickness is 24～25mm; Carry out annealing in process, annealing temperature is 680～750 ℃; Overlay cladding when the defect such as merging, lack of penetration, needs re-start repair welding after polishing.
The processing method of the high station structure of drilling rod that makes a trip fast of described built-up welding moulding, it is characterized in that: after in described step C, high station overlaying structure forms, the thickness formed is greater than design thickness 2～3mm, need to carry out the turning processing of accurate dimension, forms the high station structure of drilling rod after turning.
The processing method of the high station structure of drilling rod that makes a trip fast of described built-up welding moulding, it is characterized in that: in described step D after the high station structure of bar machines, need to carry out modifier treatment to overlay cladding, analgesic equipment adopts at intermediate-frequency heating furnace, and hardening media is water; 850～950 ℃ of hot temperature, temperature retention time 5～10 minutes; 550～650 ℃ of temperatures.
The present invention has innovated the processing method of high station structure in a kind of high station structure drilling rod, by thicken+built-up welding+finish turning of upsetting+heat treated processing method, has effectively improved the working (machining) efficiency of high station structure drilling rod that is:, has reduced the gentle production cost of material water consumption.
The accompanying drawing explanation
Fig. 1 is the high station structure initial configuration schematic diagram formed through upsetting in technique of the present invention.
Fig. 2 is the structural representation through the high station structure of drilling rod that makes a trip fast of the built-up welding moulding of processes of the present invention.
In figure: 1-thickeies thickening; 2-built-up welding district.
The specific embodiment
The invention provides a kind of processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding.Specific embodiment is as follows:
A carries out the original shaping of high station structure to mother tube, form high station structure initial configuration.
The at first selected mother tube of A1, the long 50～90mm of the more common drill pipe body of its length.
The A2 second step: position, length, the height of required high station structure, body two ends according to high station structure thicken Len req etc., determine effective heated length and heating location; Generally, the edge nearby of high station structure, be 400mm apart from the length of tool joint weld seam.
A3 is added hot upset forging to definite position, externally under the control of mould, carries out external upset (EU) (being the outside wall thickness that increases of tube wall), through the hot upset forging that adds of 1～2 passage, forms high station structure initial configuration.The high station structure initial configuration formed, its external diameter increases by 10～15mm than body.The 5 inches mother tubes of take are example, use the 180KW intermediate-frequency heating furnace, 500/1000 ton of horizontal thickening unit, add thickness rate 1.3～1.35, through the heating thickening of two passages, the external diameter at selected position reaches 139～140mm, and wall thickness increases to 15.53mm from 9.19, the formed part (length is 90 ± 10mm, external diameter 140mm) that exceeds the body surface is high station structure initial configuration (Fig. 1 is the high station structure initial configuration formed through upsetting, and the thickening thickening is label 1).
B carries out multiple-bead deposit on high station initial configuration, forms high station overlaying structure.
Take high station structure as basis, implement multiple-bead deposit, form high station overlaying structure.Specific implementation process is:
The high station structure initial configuration that B1 forms previous step carries out surface treatment, through the wire brush rust cleaning of scrubbing, polish, removes surperficial oxide skin etc., also can carry out the shot derusting by sandblasting.
B2 carries out surface overlaying.In described step B2, weldering is carried out preheating to surfacing part, and preheat temperature is 300～350 ℃, and welding wire, through drying and processing, is used multifibres automatic submerged arc welding to carry out the butt welding operation, and welding wire is selected and the 26GrMo approaching to the body composition; During the ground floor built-up welding, little electric current, low-voltage, overlay cladding remains on 3～4mm, after ground floor completes, carries out the welding slag cleaning, after the slag cleaning, carries out second layer built-up welding, and the built-up welding THICKNESS CONTROL is at 4～6mm; After two layers of built-up welding complete, the high station overlaying structure that formation thickness is 24～25mm; Carry out annealing in process, annealing temperature is 680～750 ℃; Overlay cladding when the defect such as merging, lack of penetration, needs re-start repair welding after polishing.
The finish turning processing of the high station structure of C, finally form the high station structure of drilling rod.
After high station overlaying structure forms, the thickness of formation is greater than design thickness 2～3mm, need to carry out the turning processing of accurate dimension, forms the high station structure of drilling rod after turning.
D carries out modifier treatment to high station overlaying structure;
After the high station structure of drilling rod machines, need to carry out modifier treatment to overlay cladding, analgesic equipment adopts at intermediate-frequency heating furnace, and hardening media is water.850～950 ℃ of heating-up temperatures, temperature retention time 5～10 minutes; 550～650 ℃ of temperatures.
The high station structure of the drilling rod that makes a trip fast of the built-up welding moulding be processed to form through the inventive method is (label of thickening thickening is 1, and the label in built-up welding district is 2) as shown in Figure 2.This high station structure can be to consist of the cylinder in the middle of being positioned at and the transition circle cone on 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 body section section thick section, thickening changeover portion, high station structure, body remainder wall thickness is identical.
The present invention has only described processing method and the process of the high station structure of drilling rod, and the processes such as the welding of the thickening of drill pipe body two ends, body and joint, body heat treatment, weld seam heat treatment are the same with the process of common drilling rod.
The foregoing is only preferred embodiment of the present invention, not be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application the scope of the claims change and modify, all should be technology category of the present invention.
Claims (7)
1. the processing method of the high station structure of drilling rod that makes a trip fast of a built-up welding moulding is characterized in that: it has adopted the combined molding method of built-up welding after first thickening, and high station structure adds overlay cladding by the body thickening layer and forms.
2. the processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding according to claim 1, it is characterized in that: specific embodiment is as follows:
A carries out the original shaping of high station structure to mother tube, form 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 the high station structure of C, finally form the high station structure of drilling rod;
D carries out modifier treatment to high station overlaying structure.
3. the processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding according to claim 2, it is characterized in that: the concrete operation of described steps A is as follows:
The at 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 position, length, the height of required high station structure, the body two ends of high station structure, determines effective heated length and heating location; Generally, the edge nearby of high station structure, be 400mm apart from the length of tool joint weld seam;
A3 is added hot upset forging to definite position, externally under the control of mould, carries out external upset (EU), and the outside wall thickness that increases of tube wall, through the hot upset forging that adds of 1～2 passage, form high station structure initial configuration; The high station structure initial configuration formed, its external diameter increases by 10～15mm than body.
4. the processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding according to claim 2, it is characterized in that: the concrete operation of described step B is as follows:
The high station structure initial configuration that B1 forms previous step carries out surface treatment, through the wire brush rust cleaning of scrubbing, polish, removes surperficial oxide skin etc., also can carry out the shot derusting by sandblasting;
B2 carries out surface overlaying.
5. the processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding according to claim 4, it is characterized in that: in described step B2, weldering is carried out preheating to surfacing part, preheat temperature is 300～350 ℃, welding wire is through drying and processing, use multifibres automatic submerged arc welding to carry out the butt welding operation, welding wire is selected and the 26GrMo approaching to the body composition; During the ground floor built-up welding, little electric current, low-voltage, overlay cladding remains on 3～4mm, after ground floor completes, carries out the welding slag cleaning, after the slag cleaning, carries out second layer built-up welding, and the built-up welding THICKNESS CONTROL is at 4～6mm; After two layers of built-up welding complete, the high station overlaying structure that formation thickness is 24～25mm; Carry out annealing in process, annealing temperature is 680～750 ℃; Overlay cladding when the defect such as merging, lack of penetration, needs re-start repair welding after polishing.
6. the processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding according to claim 2, it is characterized in that: after in described step C, high station overlaying structure forms, the thickness formed is greater than design thickness 2～3mm, need to carry out the turning processing of accurate dimension, form the high station structure of drilling rod after turning.
7. the processing method of the high station structure of drilling rod that makes a trip fast of built-up welding moulding according to claim 2, it is characterized in that: in described step D after the high station structure of bar machines, need to carry out modifier treatment to overlay cladding, analgesic equipment adopts at intermediate-frequency heating furnace, and hardening media is water; 850～950 ℃ of hot temperature, temperature retention time 5～10 minutes; 550～650 ℃ of temperatures.
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| CN201310440256.XA CN103495839B (en) | 2013-09-24 | 2013-09-24 | The processing method of what a kind of built-up welding was shaping make a trip fast drilling rod height station structure |
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| CN103495839B 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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