CN103452493B - A kind of manufacture method of extraordinary welding resistance composite sulfur resisting drilling rod - Google Patents
A kind of manufacture method of extraordinary welding resistance composite sulfur resisting drilling rod Download PDFInfo
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- CN103452493B CN103452493B CN201310439071.7A CN201310439071A CN103452493B CN 103452493 B CN103452493 B CN 103452493B CN 201310439071 A CN201310439071 A CN 201310439071A CN 103452493 B CN103452493 B CN 103452493B
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Abstract
A kind of extraordinary welding resistance composite sulfur resisting drilling rod and its manufacture method; including drilling rod body and stainless steel tube; the diameter of the stainless steel tube is less than 0.1-0.3mm of drilling rod body male joint hydrophthalmia internal diameter; wall thickness is 0.5~2mm; stainless steel tube is inserted into drilling rod body; and stainless steel tube is close in drilling rod inner body wall by expanding, then welded seal is carried out to the end of drilling rod body and stainless steel tube, protect drilling rod inner body wall.The present invention compared with prior art, has the following advantages that：1st, it is safe, gentle using hydraulic way, hydrostatic pressing mode or the expanding stainless steel tube of mechanical system and drilling rod body multiple tube, drilling rod inner wall surface will not be damaged, play good corrosion protection；2nd, drilling rod body and stainless steel tube multiple tube can guarantee that drilling rod inwall relative to coating evenly, it is controllable, do not fall off, use pressure stability；3rd, with high temperature resistant, wearability and corrosion resistance；4th, surface is smooth, reduces abrasion, and flow efficiency is greatly improved, and extends drilling life of drill pipe.
Description
Technical field
The present invention relates to metal composite pipe technical field, and in particular to a kind of manufacturer of extraordinary welding resistance composite sulfur resisting drilling rod
Method.
Background technology
With the development of market economy, the further increasing of energy demand, the raising of petroleum resources exploration engineering, deeper,
More complicated oil gas field is explored, and new step is also mentioned to petroleum equipment technical requirements.Original drilling equipment because geology compared with
Shallow, relatively low to drilling rod requirement, corrosivity is less.With the raising of petroleum resources exploration engineering, more deeper, mordant oil
Gas field is found and exploits, and conventional drilling equipment requirement is also improved, and the corrosion of drilling rod is also more serious.
It is rotten that current drilling well personnel carries out protection drilling rod inwall in deeper, more complicated drilling well using undercoating mode
Erosion.Undercoating mode has two kinds：One kind is paint coatings mode；One kind is electroplated coating mode.Wherein paint coatings mode makes
With the most extensive.Because of the complication of present hole condition, most of oil gas field contains H2S、CO2, various corrosion compositions such as Cr it is more and more,
Wherein with H2S、CO2Corrosion when coexisting is the most universal, and process is the most complicated and harsh, causes the pole of drilling engineering technical staff
Big concern, so the condition such as especially set out anticorrosive, inoxidizability, high temperature resistant when drilling rod is purchased.For drilling rod in drilling
In perishable requirement, petroleum equipment research staff and producers' joint development, work out a variety of protections in recent years
Drilling rod inwall does not receive caustic solution, all classifies as undercoating method, various types, wherein studying the widest with epoxide powder coating
General, such as the 3M companies in the U.S. and Co., Ltd. of Sumitomo Metal Industries of Japan are all the manufacturers of world-renowned epoxy powder.Should
The popularization of item invention, because making drilling rod inner wall surface smooth, the advantage such as frictional resistance of drilling fluid is in market during reduction drilling
On obtained good utilization, also greatly improve the service life of anticorrosion drilling rod, oil field is alleviated to a certain extent
Etching problem.But because profile depth is shallower, in complex hole condition operation, drilling rod inwall wearability or poor, at high temperature
Dropping situations are easily produced, so the permanent effect for using can not be reached.Electroplated coating method be by electrolytic ion element with
Metal is combined, but this mode easily causes surface, and unevenness defect is produced, and during drilling well use, is applied with respect to coating
Layer protects the effect that drilling rod inwall is not played by forms of corrosion slightly worse, and popularization and application are also corresponding less.
In the further expansion of petroleum drilling and mining industry, the difference such as each oil field stratum condition is different, to the universal of aseptic technic
Popularization brings difficulty, though the drilling rod anti-corrosion method of prior art achieves certain effect, generates very big benefit, still
There are problems that non-refractory, not wear-resisting, incomplete anticorrosion, easily aging etc. not enough, it is impossible to meet specific Oil Field production and
The requirement of application, studies deep systematicness and also relatively lacks.
The content of the invention
The defect that the purpose of the present invention exists aiming at prior art, there is provided one kind can be used for operation under complex hole condition,
Play high temperature resistant, it is wear-resisting, corrosion-resistant, do not fall off, do not fail and other effects, a kind of extraordinary welding resistance for extending drilling life of drill pipe is combined
The manufacture method of sulfur resistant drill pipe.
Its technical scheme is：A kind of manufacture method of extraordinary welding resistance composite sulfur resisting drilling rod, including drilling rod body and stainless steel
Pipe, stainless steel tube is inserted into drilling rod body, and stainless steel tube is close in drilling rod inner body wall by expanding, then to drilling rod
The end of body and stainless steel tube carries out welded seal, protects drilling rod inner body wall, and the stainless steel tube is by hydraulic way, quiet
Hydraulic pressure mode or mechanical system is expanding is close in drilling rod inner body wall, end is by resistance seam welding mode to two kinds of ends of material
Portion carries out welded seal, it is characterised in that：The diameter of the stainless steel tube less than drilling rod body male joint hydrophthalmia internal diameter 0.1-
0.3mm, wall thickness is 0.5~2mm；Manufacturing process flow is as follows：
1）Drilling rod inner body wall need to purge clean process by preheating, interior ball blast derusting by sandblasting dedusting, air, by drilling rod
Inner wall cleaning is smooth clean, stainless steel pipe surface smooth clean；
2）Two kinds of clean materials in the tube of surface treatment are assembled together, will stainless steel tube loading drilling rod body interior, use
Hydraulic way, hydrostatic pressing mode or machinery expanding mode are pressurizeed to drilling rod body and stainless steel tube, and permission is reached in pressure
Maximum stress value when, and pressurize 5-20 minutes, so that stainless steel tube reaches is close to drilling rod inner body wall；
3）The stainless steel tube being close in drilling rod inwall and the roll welding of drilling rod body are carried out firmly using resistance seam welding mode
Closely, spiral roll welding is used from drilling rod one end to the other end, roll welding welding bead is road road step-by-step system, and its welding bead spacing is
100—200mm；
4）Drilling pressure according to API 7G requirements carries out multiple repetition test, makes the effective incremental portion of run of steel,
Visually observe whether stainless steel tube in the inwall of two ends changes, the new product to being close to drilling rod inwall stainless steel tube carries out size inspection
Test and Non-Destructive Testing, it is ensured that new product meets associated specifications；
5）Expanding good stainless steel tube is carried out into mechanical test and Metallographic Analysis, detection new product must meet API 5DP brills
The identical grade of steel mechanical property requirements of bar, resistance seam welding junction secure rigid, zero defect, stainless steel tube is in drilling rod body by big
Under pressure condition, micro-plastic deformation is not produced, it is ensured that weld seam is not departed from, complete the requirement of bimetallic composite drill rod.
The present invention compared with prior art, has the following advantages that：1st, using hydraulic way, hydrostatic pressing mode or machinery side
The expanding stainless steel tube of formula is safe with drilling rod body multiple tube, gentle, will not damage drilling rod inner wall surface, plays corrosion well
Protection；2nd, drilling rod body and stainless steel tube multiple tube can guarantee that drilling rod inwall relative to coating evenly, it is controllable, do not fall off, make
Use pressure stability；3rd, with high temperature resistant, wearability and corrosion resistance；4th, surface is smooth, reduces abrasion, and flowing effect is greatly improved
Rate, extends drilling life of drill pipe.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
Specific embodiment
Reference picture 1, a kind of manufacture method of extraordinary welding resistance composite sulfur resisting drilling rod, including drilling rod body 1 and stainless steel tube 2,
The pipe of stainless steel 2 is inserted into drilling rod body 1, and stainless steel tube 2 is close on the inwall of drilling rod body 1 by expanding, then to boring
The end of bar body 1 and stainless steel tube 2 carries out welded seal, and the inwall of protection drilling rod body 1, the stainless steel tube 2 passes through hydraulic pressure
Mode, hydrostatic pressing mode or mechanical system is expanding is close on the inwall of drilling rod body 1, end is by resistance seam welding mode to two kinds
The end of material carries out welded seal, it is characterised in that：The diameter of the stainless steel tube 2 is less than in drilling rod body male joint hydrophthalmia
0.1-0.3mm of footpath, wall thickness is 0.5~2mm；
Manufacturing process flow is as follows：
1）The inwall of drilling rod body 1 need to purge clean process by preheating, interior ball blast derusting by sandblasting dedusting, air, will bore
Bar inner wall cleaning is smooth clean, stainless steel pipe surface smooth clean；
2）By two kinds of clean materials in the tube assemblings of surface treatment together, will stainless steel tube load drilling rod body interior,
Drilling rod body 1 and stainless steel tube 2 are pressurizeed using hydraulic way, hydrostatic pressing mode or machinery expanding mode,
When pressure reaches the maximum stress value of permission, and pressurize 5-20 minutes, so as to stainless steel tube 2 reaches be close in drilling rod body 1
Wall；
3）The stainless steel tube 2 being close in drilling rod inwall and the roll welding of drilling rod body 1 are carried out into jail using resistance seam welding mode
Fastening is close, and spiral roll welding is used from drilling rod one end to the other end, and roll welding welding bead is road road step-by-step system, and its welding bead spacing is
100—200mm；
4）Drilling pressure according to API 7G requirements carries out multiple repetition test, makes the effective incremental portion of run of steel,
Visually observe whether stainless steel tube in the inwall of two ends changes, the new product to being close to drilling rod inwall stainless steel tube carries out size inspection
Test and Non-Destructive Testing, it is ensured that new product meets associated specifications；
5）Expanding good stainless steel tube is carried out into mechanical test and Metallographic Analysis, detection new product must meet API 5DP brills
The identical grade of steel mechanical property requirements of bar, resistance seam welding junction secure rigid, zero defect, stainless steel tube is in drilling rod body by big
Under pressure condition, micro-plastic deformation is not produced, it is ensured that weld seam is not departed from, complete the requirement of bimetallic composite drill rod.
Embodiment one
A kind of manufacture method of extraordinary welding resistance composite sulfur resisting drilling rod, including drilling rod body 1 and stainless steel tube 2, it is described stainless
The diameter of steel pipe 2 is less than the male joint hydrophthalmia internal diameter 0.2mm of drilling rod body 1, and wall thickness is 1mm, and stainless steel tube 2 is inserted into drilling rod body
In 1, and stainless steel tube is set to be close in drilling rod body on 1 wall by the way that hydrostatic pressing mode is expanding, then to drilling rod body 1 and stainless steel
The end 3 of pipe 2 carries out resistance seam welding sealing, the inwall of protection drilling rod body 1.
Manufacturing process flow is as follows：
1）Drilling rod inner body wall need to purge clean process by preheating, interior ball blast derusting by sandblasting dedusting, air, by drilling rod
Inner wall cleaning is smooth clean.Stainless steel pipe surface smooth clean；
2）By two kinds of clean materials in the tube assemblings of surface treatment together, will stainless steel tube load drilling rod body interior,
The intrinsic stainless steel tube of drilling rod is pressurizeed using hydrostatic pressing mode is expanding, the maximum of permission is reached in pressure
During stress value, and pressurize 15 minutes, so that stainless steel tube reaches is close to drilling rod inner body wall；
3）The stainless steel tube being close in drilling rod inwall and the roll welding of drilling rod body are carried out firmly using resistance seam welding mode
Closely, spiral roll welding is used from drilling rod one end to the other end, roll welding welding bead is road road step-by-step system, and its welding bead spacing is
150mm；
4）Drilling pressure according to API 7G requirements carries out multiple repetition test, makes the effective incremental portion of run of steel,
Visually observe whether stainless steel tube in the inwall of two ends changes, the new product to being close to drilling rod inwall stainless steel tube carries out size inspection
Test and Non-Destructive Testing, it is ensured that new product meets associated specifications；
5）Expanding good stainless steel tube is carried out into mechanical test and Metallographic Analysis, detection new product must meet API 5DP brills
The identical grade of steel mechanical property requirements of bar, resistance seam welding junction secure rigid, zero defect, stainless steel tube is in drilling rod body by big
Under pressure condition, micro-plastic deformation is not produced, it is ensured that weld seam is not departed from, complete the requirement of bimetallic composite drill rod.
Embodiment two
A kind of manufacture method of extraordinary welding resistance composite sulfur resisting drilling rod, including drilling rod body 1 and stainless steel tube 2, it is described stainless
The diameter of steel pipe 2 is less than the male joint hydrophthalmia internal diameter 0.3mm of drilling rod body 1, and wall thickness is 2mm, and stainless steel tube 2 is inserted into drilling rod body
In 1, and stainless steel tube is set to be close in drilling rod body on 1 wall by the way that hydraulic way is expanding, then to drilling rod body 1 and stainless steel tube
2 end 3 carries out resistance seam welding sealing, the inwall of protection drilling rod body 1.
Manufacturing process flow is as follows：
1）Drilling rod inner body wall need to purge clean process by preheating, interior ball blast derusting by sandblasting dedusting, air, by drilling rod
Inner wall cleaning is smooth clean.Stainless steel pipe surface smooth clean；
2）By two kinds of clean materials in the tube assemblings of surface treatment together, will stainless steel tube load drilling rod body interior,
The intrinsic stainless steel tube of drilling rod is pressurizeed using hydraulic way is expanding, the maximum for reaching permission in pressure should
During force value, and pressurize 5 minutes, so that stainless steel tube reaches is close to drilling rod inner body wall；
3）The stainless steel tube being close in drilling rod inwall and the roll welding of drilling rod body are carried out firmly using resistance seam welding mode
Closely, spiral roll welding is used from drilling rod one end to the other end, roll welding welding bead is road road step-by-step system, and its welding bead spacing is
100mm；
4）Drilling pressure according to API 7G requirements carries out multiple repetition test, makes the effective incremental portion of run of steel,
Visually observe whether stainless steel tube in the inwall of two ends changes, the new product to being close to drilling rod inwall stainless steel tube carries out size inspection
Test and Non-Destructive Testing, it is ensured that new product meets associated specifications；
5）Expanding good stainless steel tube is carried out into mechanical test and Metallographic Analysis, detection new product must meet API 5DP brills
The identical grade of steel mechanical property requirements of bar, resistance seam welding junction secure rigid, zero defect, stainless steel tube is in drilling rod body by big
Under pressure condition, micro-plastic deformation is not produced, it is ensured that weld seam is not departed from, complete the requirement of bimetallic composite drill rod.
Claims (1)
1. a kind of manufacture method of extraordinary welding resistance composite sulfur resisting drilling rod, including drilling rod body and stainless steel tube, stainless steel tube insertion
To in drilling rod body, and stainless steel tube is set to be close in drilling rod inner body wall by expanding, then to drilling rod body and stainless steel tube
End carry out welded seal, protect drilling rod inner body wall, the stainless steel tube is by hydraulic way, hydrostatic pressing mode or machinery
Mode is expanding to be close in drilling rod inner body wall, and it is close that end carries out welding to two kinds of ends of material by resistance seam welding mode
Envelope, it is characterised in that：The diameter of the stainless steel tube is less than drilling rod body male joint hydrophthalmia 0.1-0.3mm of internal diameter, and wall thickness is
0.5~2mm；Manufacturing process flow is as follows：
1）Drilling rod inner body wall need to purge clean process by preheating, interior ball blast derusting by sandblasting dedusting, air, by drilling rod inwall
Cleaning is smooth clean, stainless steel pipe surface smooth clean；
2）By two kinds of clean materials in the tube assemblings of surface treatment together, will stainless steel tube load drilling rod body interior,
Drilling rod body and stainless steel tube are pressurizeed using hydraulic way, hydrostatic pressing mode or machinery expanding mode, in pressure
When reaching the maximum stress value of permission, and pressurize 5-20 minutes, so that stainless steel tube reaches is close to drilling rod inner body wall；
3）The stainless steel tube being close in drilling rod inwall and the roll welding of drilling rod body are carried out into secure rigid using resistance seam welding mode,
From drilling rod one end to the other end use spiral roll welding, roll welding welding bead be road road step-by-step system, its welding bead spacing be 100-
200mm；
4）Drilling pressure according to API 7G requirements carries out multiple repetition test, makes the effective incremental portion of run of steel, naked eyes
Observation two ends inwall in stainless steel tube whether change, the new product to being close to drilling rod inwall stainless steel tube carry out dimension control and
Non-Destructive Testing, it is ensured that new product meets associated specifications；
5）Expanding good stainless steel tube is carried out into mechanical test and Metallographic Analysis, detection new product must meet API 5DP drilling rod phases
With grade of steel mechanical property requirements, resistance seam welding junction secure rigid, zero defect, stainless steel tube receives big pressure in drilling rod body
In the case of, do not produce micro-plastic deformation, it is ensured that weld seam is not departed from, complete the requirement of bimetallic composite drill rod.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310439071.7A CN103452493B (en) | 2013-09-25 | 2013-09-25 | A kind of manufacture method of extraordinary welding resistance composite sulfur resisting drilling rod |
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|---|---|---|---|
| CN201310439071.7A CN103452493B (en) | 2013-09-25 | 2013-09-25 | A kind of manufacture method of extraordinary welding resistance composite sulfur resisting drilling rod |
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| CN103452493A CN103452493A (en) | 2013-12-18 |
| CN103452493B true CN103452493B (en) | 2017-06-13 |
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| CN112901086A (en) * | 2021-02-05 | 2021-06-04 | 中国石油天然气集团有限公司 | Erosion-resistant composite aluminum alloy drill rod and manufacturing process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4458404A (en) * | 1977-07-25 | 1984-07-10 | Smith International, Inc. | Method of making sleeved drill pipe |
| US4436118A (en) * | 1977-07-25 | 1984-03-13 | Smith International, Inc. | Sleeved drill pipe |
| CN102794601B (en) * | 2011-05-23 | 2015-08-26 | 周照耀 | A kind of manufacture method of wear-resisting, corrosion-resistant, shock resistance Bending Pipes |
| US9085942B2 (en) * | 2011-10-21 | 2015-07-21 | Weatherford Technology Holdings, Llc | Repaired wear and buckle resistant drill pipe and related methods |
| CN102506236A (en) * | 2011-10-21 | 2012-06-20 | 唐勇 | Bimetallic mechanical compound wear-resistant steel pipe and manufacturing method thereof |
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Effective date of registration: 20200916 Address after: No.56 Shengxing Road, Kenli District, Dongying City, Shandong Province Patentee after: Shandong Mingzhu drilling tools Co.,Ltd. Address before: 257000 Shandong Dongying County Economic Development Zone, Kenli province wins Road East head Patentee before: SHANDONG MINGZHU PETROLEUM EQUIPMENT Co.,Ltd. |
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