CN102343471A - Overlaying process of drilling tool for petroleum extraction - Google Patents
Overlaying process of drilling tool for petroleum extraction Download PDFInfo
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- CN102343471A CN102343471A CN2010102404976A CN201010240497A CN102343471A CN 102343471 A CN102343471 A CN 102343471A CN 2010102404976 A CN2010102404976 A CN 2010102404976A CN 201010240497 A CN201010240497 A CN 201010240497A CN 102343471 A CN102343471 A CN 102343471A
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Abstract
The invention provides an overlaying process of a drilling tool for petroleum extraction. Primarily, an overlaying region of the drilling tool is electrically welded by an automatic control carbon dioxide welding machine by using a carbon steel welding wire; pure tungsten powder which is preheated to 200 DEG C is sprayed to an electrical welding position by a powder spraying mechanism during the electrical welding to perform facing; and finally, a tungsten carbide-containing thickening wear-resistant belt is formed by performing facing at the overlaying region of the drilling tool. By adopting the overlaying process of the drilling tool for petroleum extraction, the forming of a weld joint and the fusion depth of a welding wire and a parent metal are effectively increased, and the hardness of a welding layer is improved; and thus, the wear resistance of the drilling tool and the anti-friction quality of the drilling tool to a bushing are improved, and the service life of the drilling tool is prolonged by more than two times.
Description
Technical field
The present invention relates to a kind of process of surface treatment of tubing, relate in particular to the bead-welding technology of a kind of oil exploitation with drilling tool.
Background technology
Along with the high speed development of oil drilling cause, oil exploitation is used more and morely with drilling tool, and the damage of drilling tool also is on the rise in the drilling well probing.Prior art employing plasma spraying weldering and carbon-dioxide protecting stiff dough apply welding technology and form the wear-resisting band of one deck at the quick-wear surface of drilling tool, and impaired of drilling rod protected in reply in drilling well and drilling process, played certain positive role.But the weld seam that applies weldering as welding is more and more higher to the protection requirement of drilling rod, and applying unit is to requiring also more and more high the service life of drilling tool.Prior art has not satisfied needs.
Summary of the invention
The object of the invention exactly in order to address the above problem, provides the bead-welding technology of a kind of oil exploitation with drilling tool.
In order to achieve the above object, the present invention has adopted following technical scheme: a kind of oil exploitation may further comprise the steps with the bead-welding technology of drilling tool:
(1) the built-up welding area surfaces of drilling tool is carried out clean, remove rust staining, the greasy dirt on surface;
(2) the heating in medium frequency stove being sent in the built-up welding zone of drilling tool heats to 200～250 ℃;
(3) the built-up welding area surfaces to the drilling tool after qualified of heating cleans once more;
(4) adopt the carbon steel welding wire that electric welding is carried out in the built-up welding zone of drilling tool by automatic control carbon dioxide welding machine; Spray into the pure tungsten powder that is preheating to 200 ℃ by the mechanism of dusting to the electric welding position in the time of electric welding and apply weldering, finally apply formation one deck and contain the wear-resisting band of thickening of tungsten carbide in the built-up welding zone weldering of drilling tool.
Described weldingvoltage is 20～35V, and electric current is 300A.
Described automatic control carbon dioxide welding machine adopts the 401 staight shank water cooled welding torch of Bin Caier, and described carbon steel welding wire uses ER55 or ER55B2 type carbon steel welding wire, and specification is φ 1.6mm.
The granularity of described pure tungsten powder is 40～80 orders, and straying quatity is controlled at every square centimeter of built-up welding zone 10～30 grams.
Described automatic control carbon dioxide welding machine adopts program control technology control speed of welding, the amplitude of fluctuation of welding gun and the control of amplitude of oscillation speed synchronization.
The built-up welding zone of described drilling tool comprises the mother's end and the public end of drilling tool, the mother's end that increases the weight of drilling tool, the public end and middle thick section.
Adopt the bead-welding technology of oil exploitation of the present invention, have following advantage and characteristics with drilling tool:
1, the layer that can guarantee institute's built-up welding can accurately be controlled the flatness on surface of face crack and the layer of width, thickness, layer.
2, increased effectively weld seam moulding and welding wire and mother metal melt the degree of depth, thereby guaranteed the service life of layer in drilling process valuably.
3, improved the hardness of layer, thereby improved wearability and the drilling tool of drilling tool antifriction quality, promoted drilling tool and reach more than two times service life sleeve pipe.
The specific embodiment
Oil exploitation of the present invention is at first clean to be carried out, rust staining, greasy dirt that removal is surperficial in the surface, built-up welding zone (the mother's end that comprises drilling tool holds, increases the weight of mother's end of drilling tool, public end and middle thick section with public affairs) of drilling tool with the bead-welding technology of drilling tool; The built-up welding zone of the drilling tool that will clean is sent into the heating in medium frequency stove and is heated to 200～250 ℃ then; Built-up welding area surfaces to the drilling tool after qualified of heating cleans once more then; Drilling tool can be pushed in the automatic welder(welding machine); Adopt the carbon steel welding wire that electric welding is carried out in the built-up welding zone of drilling tool by automatic control carbon dioxide welding machine (this controls the 401 staight shank water cooled welding torch that the carbon dioxide welding machine adopts Bin Caier automatically); Spray into the pure tungsten powder that is preheating to 200 ℃ by the mechanism of dusting to the electric welding position in the time of electric welding and apply weldering, finally apply formation one deck and contain the wear-resisting band of thickening of tungsten carbide in the built-up welding zone weldering of drilling tool.Weldingvoltage is 20～35V, and electric current is 300A.The carbon steel welding wire uses ER55 or ER55B2 type carbon steel welding wire, and specification is φ 1.6mm.The granularity of pure tungsten powder is 40～80 orders, and straying quatity is controlled at every square centimeter of built-up welding zone 10～30 grams.For guaranteeing the effective of powder feeding, operating personnel must note observing the variation in molten bath at any time, are that green redness is the best with the color of controlling the molten bath, and it is half wriggling state that welding wire flows.Can not adjust chattering frequency and wire feed rate if reach the requirement on weld seam plane.The adjustment that also can strengthen wire feed rate in addition reaches the weld seam that best optimum is applied in weldering.
Bead-welding technology of the present invention is that carbon-dioxide arc welding and tungsten carbide spray welding merge welding synchronously.The sealing of purification room and exhausting window are arranged in welding process fully independently, between welding machine chuck and the drilling tool jockey is arranged, and automatic control cabinet and jacking frame and heating system are the welding equipment of one.
The present invention is for the used drilling tool of oil exploitation, and it is deposited no matter which kind of specification comprises that drill collar can weld.Give weld seam that drilling tool top layer weldering applies can guarantee smooth smooth, the structure reality is close, weld seam melts more than the depth 1.5mm, has guaranteed the service life of drilling tool self.Because in ER55 or the electric welding of ER55B2 type welding wire, having added the pure tungsten powder applies weldering synchronously, in layer, has generated the tungsten carbide of high abrasion, thereby has improved the wearability of weld seam.The inwall that has also guaranteed the drilling tool sleeve pipe has reduced its wearing and tearing.The useful life that has simultaneously also prolonged sleeve pipe.
Claims (6)
1. an oil exploitation is characterized in that with the bead-welding technology of drilling tool, may further comprise the steps:
(1) the built-up welding area surfaces of drilling tool is carried out clean, remove rust staining, the greasy dirt on surface;
(2) the heating in medium frequency stove being sent in the built-up welding zone of drilling tool heats to 200～250 ℃;
(3) the built-up welding area surfaces to the drilling tool after qualified of heating cleans once more;
(4) adopt the carbon steel welding wire that electric welding is carried out in the built-up welding zone of drilling tool by automatic control carbon dioxide welding machine; Spray into the pure tungsten powder that is preheating to 200 ℃ by the mechanism of dusting to the electric welding position in the time of electric welding and apply weldering, finally apply formation one deck and contain the wear-resisting band of thickening of tungsten carbide in the built-up welding zone weldering of drilling tool.
2. oil exploitation as claimed in claim 1 is characterized in that with the bead-welding technology of drilling tool: described weldingvoltage is 20～35V, and electric current is 300A.
3. oil exploitation as claimed in claim 1 is with the bead-welding technology of drilling tool; It is characterized in that: described automatic control carbon dioxide welding machine adopts the 401 staight shank water cooled welding torch of Bin Caier; Described carbon steel welding wire uses ER55 or ER55B2 type carbon steel welding wire, and specification is φ 1.6mm.
4. oil exploitation as claimed in claim 1 is characterized in that with the bead-welding technology of drilling tool: the granularity of described pure tungsten powder is 40～80 orders, and straying quatity is controlled at every square centimeter of built-up welding zone 10～30 grams.
5. oil exploitation as claimed in claim 1 is characterized in that with the bead-welding technology of drilling tool: described automatic control carbon dioxide welding machine adopts program control technology control speed of welding, the amplitude of fluctuation of welding gun and the control of amplitude of oscillation speed synchronization.
6. oil exploitation as claimed in claim 1 is characterized in that with the bead-welding technology of drilling tool: the built-up welding zone of described drilling tool comprises the mother's end and the public end of drilling tool, the mother's end that increases the weight of drilling tool, the public end and middle thick section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102404976A CN102343471A (en) | 2010-07-29 | 2010-07-29 | Overlaying process of drilling tool for petroleum extraction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102404976A CN102343471A (en) | 2010-07-29 | 2010-07-29 | Overlaying process of drilling tool for petroleum extraction |
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| CN102343471A true CN102343471A (en) | 2012-02-08 |
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| CN2010102404976A Pending CN102343471A (en) | 2010-07-29 | 2010-07-29 | Overlaying process of drilling tool for petroleum extraction |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837104A (en) * | 2012-09-24 | 2012-12-26 | 上海中曼石油装备有限公司 | Method for achieving one-time molding of upset welding and wear-resistant welding of oil drill pipe |
| CN103495839A (en) * | 2013-09-24 | 2014-01-08 | 上海海隆石油管材研究所 | Machining method of quick-trip drill pipe high-position structure formed in built-up welding mode |
| CN104874928A (en) * | 2015-05-20 | 2015-09-02 | 济源华新石油机械有限公司 | Welding method of wear-resistant belt alloy of HF3000 non-magnetic centering guide |
| CN107052537A (en) * | 2017-05-10 | 2017-08-18 | 苏州南尔材料科技有限公司 | A kind of method of utilization silicon-carbon doping resurfacing welding material tipped drill |
| CN107088693A (en) * | 2016-08-08 | 2017-08-25 | 温州宝通机械制造有限公司 | A kind of alloying pellet bead-welding technology |
| CN107097020A (en) * | 2017-05-17 | 2017-08-29 | 苏州南尔材料科技有限公司 | A kind of preparation method of carbon silicon doping resurfacing welding material |
| CN107150189A (en) * | 2017-05-10 | 2017-09-12 | 苏州南尔材料科技有限公司 | A kind of preparation method of composite hardfacing materials |
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| CN1511670A (en) * | 2002-12-31 | 2004-07-14 | 江门市威霖贸易有限公司 | Submerged arc welding method of parallel double wire or single wire adding metal powder |
| DE102006013552B3 (en) * | 2006-03-24 | 2007-06-14 | Maschinenfabrik Gustav Wiegard Gmbh & Co. Kg | Production of useful layer on base material involves use of filled wire electrodes with alloying index higher than that of useful layer |
| CN201089056Y (en) * | 2007-10-23 | 2008-07-23 | 海隆石油工业集团有限公司 | Carbon dioxide drilling tool wearable padding machine |
| CN101376190A (en) * | 2007-08-31 | 2009-03-04 | 刘振英 | Overlaying welding method and apparatus for transitional powder electric arc deposited abrasion resistance material with additional forming carbides |
| CN101722346A (en) * | 2008-10-13 | 2010-06-09 | 佳木斯大学 | CO2 gas shielded-spraying powder feeding composite overlaying process |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1511670A (en) * | 2002-12-31 | 2004-07-14 | 江门市威霖贸易有限公司 | Submerged arc welding method of parallel double wire or single wire adding metal powder |
| DE102006013552B3 (en) * | 2006-03-24 | 2007-06-14 | Maschinenfabrik Gustav Wiegard Gmbh & Co. Kg | Production of useful layer on base material involves use of filled wire electrodes with alloying index higher than that of useful layer |
| CN101376190A (en) * | 2007-08-31 | 2009-03-04 | 刘振英 | Overlaying welding method and apparatus for transitional powder electric arc deposited abrasion resistance material with additional forming carbides |
| CN201089056Y (en) * | 2007-10-23 | 2008-07-23 | 海隆石油工业集团有限公司 | Carbon dioxide drilling tool wearable padding machine |
| CN101722346A (en) * | 2008-10-13 | 2010-06-09 | 佳木斯大学 | CO2 gas shielded-spraying powder feeding composite overlaying process |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837104A (en) * | 2012-09-24 | 2012-12-26 | 上海中曼石油装备有限公司 | Method for achieving one-time molding of upset welding and wear-resistant welding of oil drill pipe |
| CN102837104B (en) * | 2012-09-24 | 2015-04-01 | 上海中曼石油装备有限公司 | Method for achieving one-time molding of upset welding and wear-resistant welding of oil drill pipe |
| CN103495839A (en) * | 2013-09-24 | 2014-01-08 | 上海海隆石油管材研究所 | Machining method of quick-trip drill pipe high-position structure formed in built-up welding mode |
| CN103495839B (en) * | 2013-09-24 | 2015-11-25 | 上海海隆石油管材研究所 | The processing method of what a kind of built-up welding was shaping make a trip fast drilling rod height station structure |
| CN104874928A (en) * | 2015-05-20 | 2015-09-02 | 济源华新石油机械有限公司 | Welding method of wear-resistant belt alloy of HF3000 non-magnetic centering guide |
| CN104874928B (en) * | 2015-05-20 | 2020-01-24 | 济源华新石油机械有限公司 | Welding method for wear-resistant belt alloy of HF3000 nonmagnetic centralizer |
| CN107088693A (en) * | 2016-08-08 | 2017-08-25 | 温州宝通机械制造有限公司 | A kind of alloying pellet bead-welding technology |
| CN107052537A (en) * | 2017-05-10 | 2017-08-18 | 苏州南尔材料科技有限公司 | A kind of method of utilization silicon-carbon doping resurfacing welding material tipped drill |
| CN107150189A (en) * | 2017-05-10 | 2017-09-12 | 苏州南尔材料科技有限公司 | A kind of preparation method of composite hardfacing materials |
| CN107097020A (en) * | 2017-05-17 | 2017-08-29 | 苏州南尔材料科技有限公司 | A kind of preparation method of carbon silicon doping resurfacing welding material |
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Application publication date: 20120208 |