CN107461158A - High strength friction welds heavy weight drill pipe - Google Patents
High strength friction welds heavy weight drill pipe Download PDFInfo
- Publication number
- CN107461158A CN107461158A CN201710772521.2A CN201710772521A CN107461158A CN 107461158 A CN107461158 A CN 107461158A CN 201710772521 A CN201710772521 A CN 201710772521A CN 107461158 A CN107461158 A CN 107461158A
- Authority
- CN
- China
- Prior art keywords
- rod
- male connection
- female adapter
- drill pipe
- heavy weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims abstract description 19
- 238000005553 drilling Methods 0.000 claims description 16
- 238000000137 annealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- 210000002445 nipple Anatomy 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 241001391944 Commicarpus scandens Species 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 3
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of high strength friction to weld heavy weight drill pipe, by the body of rod, female adapter, male connection forms, one end of female adapter is provided with the internal thread for jointed rod, the female adapter transition cylindrical section of the female adapter other end rub weld by way of and the body of rod one end connect, the diameter of female adapter transition cylindrical section is identical with the diameter of the body of rod, one end of male connection is provided with the external screw thread for jointed rod, the male connection transition cylindrical section of the male connection other end by way of friction welding and the body of rod the other end connect, the diameter of male connection transition cylindrical section is identical with the diameter of the body of rod, wear-resistant strip is provided with the part of body of rod interlude is cylindrical.Heavy weight drill pipe of the present invention effectively increases the comprehensive mechanical property of body and joint, have it is wear-resistant, it is corrosion-resistant, add the torsional property of internal and external screw thread joint and the body of rod, it is not easy to break, the service life of heavy weight drill pipe is effectively increased, can be used for multiple times under severe working environment.
Description
Technical field
The invention belongs to drilling tool field, and in particular to a kind of high strength friction welds heavy weight drill pipe.
Background technology
Heavy weight drill pipe is a part for downhole well tool.To alleviate the wall thickness contrast of drilling rod and drill collar, drilling well thing is reduced
Therefore be used as transitioning component.Its structure type is similar with drilling rod, can bear tensile load, can also bear compressive load, reduces tired
Labor is destroyed, and highly important work is carry in drilling process.In In Oil Field Exploration And Development drilling process, especially in depth
In well, extended reach well, horizontal well, high angle hole, bad environments, heavy weight drill pipe is easy to wear, perishable, fatiguability, gives oil field band
Carry out heavy losses.Therefore, this problem of drilling process has caused the close attention of drilling well circle.
In recent years, friction welding (FW) heavy weight drill pipe technology was widely used, but existing heavy weight drill pipe poor welding quality, easily
Abrasion, perishable, fatiguability, cause the comprehensive mechanical property of heavy weight drill pipe poor, easy fracture, substantially reduce heavy weight drill pipe
Service life.
The content of the invention
The technical problems to be solved by the invention are to overcome deficiency of the prior art, there is provided a kind of high strength friction weldering adds
Bar is redrilled, the heavy weight drill pipe effectively increases the comprehensive mechanical property of body and joint, has wear-resistant, corrosion resistant characteristic,
It is not easy to break, effectively increase the service life of heavy weight drill pipe.
Technical scheme：A kind of high strength friction welds heavy weight drill pipe, is connect by the body of rod, female adapter, external screw thread
Head composition, one end of female adapter are provided with the internal thread for jointed rod, the female adapter of the female adapter other end
Transition cylindrical section rub weld by way of and the body of rod one end connect, the diameter and the body of rod of female adapter transition cylindrical section
Diameter it is identical, one end of male connection is provided with the external screw thread for jointed rod, the external screw thread of the male connection other end
Joint transition cylindrical section by way of friction welding and the body of rod the other end connect, the diameter of male connection transition cylindrical section
It is identical with the diameter of the body of rod, wear-resistant strip is provided with the part of body of rod interlude is cylindrical.
Further, the diameter of the big footpath section of the female adapter is identical with the diameter of the big footpath section of the male connection.
Further, the taper of internal thread is identical with the taper of the male connection in the female adapter.
Further, wear-resistant strip is provided with the part of body of rod interlude is cylindrical, the length of the wear-resistant strip accounts for body of rod length
The 2/3 of degree.
Further, the generally cylindrical-shaped structure of the body of rod, the body of rod are made of metal material, and the body of rod is real
Work meaning in core bar body or hollow lever is a kind of.
Further, the female adapter and male connection are made up of metal material.
The friction welding method of above-mentioned high strength friction weldering heavy weight drill pipe, comprises the following steps：
（1）The end that female adapter, the body of rod, male connection will be welded is unilateral into carrying out, ensure the clean nothing in its end face
Impurity；
（2）The body of rod is radially fixed, female adapter, male connection and the body of rod are welded by the way of friction welding
Connect, during welding, rotate female adapter, male connection, and apply axial thrust to the body of rod, adjustment upset force is：1583±
25PSI, rotating speed are：605 ± 25r/min, flywheel counter weight：5500（A takes turns）+7500（B takes turns）+7500（B takes turns）, by upset force
Make material that plastic deformation and flowing occur with rotating speed, and produce energy required when drill pipe friction connects, so by the body of rod with it is interior
Nipple, male connection are welded into stem；
（3）By step（2）The drilling rod being welded carries out+temper of annealing, and annealing holding temperature is 730 DEG C, soaking time 600
Second, tempering holding temperature is 710 DEG C, soaking time 660 seconds；
（4）To weld seam driving overlap, polishing, ultrasonic examination and the progress mechanics properties testing of the drilling rod being welded.
The present invention has the advantages that compared with prior art：The diameter of the body of rod of the present invention and internal and external screw thread joint
Transition cylindrical section diameter it is identical, section when meeting welding requires, makes material by the adjustment to upset force and rotating speed
Generation is plastically deformed and flowing, and then coordinates the kinetic energy of flywheel rotation to provide energy required during friction of workpiece during connection mother metal
Amount, so as to change welding energy and Weldability, adds the torsional property of internal and external screw thread joint and the body of rod, is effectively ensured
Internal and external screw thread joint and the uniformity of body of rod size, and the linearity of the inside and outside joint screw thread in both ends, improve adding for drilling rod
Working medium amount, the heavy weight drill pipe effectively increase the comprehensive mechanical property of body and joint, have wear-resistant, corrosion resistant characteristic,
It is not easy to break, the service life of heavy weight drill pipe is effectively increased, after testing, heavy weight drill pipe of the present invention reaches following mechanical property：
Yield strength：613Mpa；
Tensile strength：751Mpa；
Elongation after fracture：18.0;
Impact test：77J、 98J、78J；
Bend test：180 ° of convex surfaces of bending do not have crackle；
Total wall thickness hardness：Between 26.0HRC-34.0HRC；
Metallographic structure：Ferrite+sorbite, without thick tissue；
Grain size：7.5 level.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1- female adapters, the 2- bodies of rod, 3- male connections, 4- internal threads, 5- external screw threads, 6- wear-resistant strips, in 7-
Nipple transition cylindrical section, 8- male connection transition cylindrical sections, 9- weld seams.
Embodiment
With reference to Figure of description, the present invention is further illustrated, so that those skilled in the art can be preferably
Understand technical scheme.
A kind of high strength friction welds heavy weight drill pipe, as shown in figure 1, by the body of rod 2, female adapter 1,3 groups of male connection
Into one end of female adapter 1 is provided with the internal thread 4 for jointed rod, the female adapter of the other end of female adapter 1
Cross cylindrical section 7 to be connected with one end of the body of rod 2 by way of rubbing and welding, the diameter and bar of female adapter transition cylindrical section 7
The diameter of body 2 is identical, and one end of male connection 3 is provided with the external screw thread 5 for jointed rod, the other end of male connection 5
Male connection transition 8 other end with the body of rod 2 by way of friction welding of cylindrical section is connected, male connection transition cylinder
The diameter of section 8 is identical with the diameter of the body of rod 2, and wear-resistant strip 6, the length of wear-resistant strip are provided with the part of the interlude of the body of rod 2 is cylindrical
Account for the 2/3 of body of rod length.The diameter of the diameter of the body of rod and the transition cylindrical section of internal and external screw thread joint is arranged to identical, it is full
Section during foot welding requires, makes material that plastic deformation and flowing, Jin Erlian occur by adjustment to upset force and rotating speed
The kinetic energy of flywheel rotation is coordinated to provide energy required during friction of workpiece when connecing mother metal, so as to change welding energy and welding energy
Power, the torsional property of internal and external screw thread joint and the body of rod is added, be effectively ensured the one of internal and external screw thread joint and body of rod size
Cause property.
In addition, the diameter of the big footpath section of female adapter is identical with the diameter of the big footpath section of the male connection, and
The taper of internal thread is identical with the taper of the male connection in the female adapter, and internal and external screw thread has been effectively ensured and has connect
Head and the uniformity of body of rod size, and the linearity of the inside and outside joint screw thread in both ends, improve the crudy of drilling rod.
The friction welding method of above-mentioned high strength friction weldering heavy weight drill pipe, comprises the following steps：
（1）The end that female adapter, the body of rod, male connection will be welded is unilateral into carrying out, ensure the clean nothing in its end face
Impurity；
（2）The body of rod is radially fixed, female adapter, male connection and the body of rod are welded by the way of friction welding
Connect, during welding, rotate female adapter, male connection, and apply axial thrust to the body of rod, adjustment upset force is：1583±
25PSI, rotating speed are：605 ± 25r/min, flywheel counter weight：5500（A takes turns）+7500（B takes turns）+7500（B takes turns）, by upset force
Make material that plastic deformation and flowing occur with rotating speed, and produce energy required when drill pipe friction connects, so by the body of rod with it is interior
Nipple, male connection are welded into stem；
（3）By step（2）The drilling rod being welded carries out+temper of annealing, and annealing holding temperature is 730 DEG C, soaking time 600
Second, tempering holding temperature is 710 DEG C, soaking time 660 seconds；
（4）To the driving of weld seam 9 overlap, polishing, ultrasonic examination and the progress mechanics properties testing of the drilling rod being welded.
Heavy weight drill pipe of the present invention effectively increases the comprehensive mechanical property of body and joint, have it is wear-resistant, it is corrosion resistant
Characteristic, it is not easy to break, it can be used for multiple times under severe working environment, effectively increase the service life of heavy weight drill pipe, through inspection
Survey, heavy weight drill pipe of the present invention reaches following mechanical property：
Yield strength：613Mpa；
Tensile strength：751Mpa；
Elongation after fracture：18.0;
Impact test：77J、 98J、78J；
Bend test：180 ° of convex surfaces of bending do not have crackle；
Total wall thickness hardness：Between 26.0HRC-34.0HRC；
Metallographic structure：Ferrite+sorbite, without thick tissue；
Grain size：7.5 level.
Above-described embodiment is only used for skilled artisan understands that technical scheme, and is not that it is limited
System, all any modification, improvement or equivalent substitutions made within technical solution of the present invention, it should be included in the protection of the present invention
Within the scope of.
Claims (7)
1. high strength friction welds heavy weight drill pipe, it is made up of the body of rod, female adapter, male connection, it is characterized in that：Internal thread connects
One end of head is provided with the internal thread for jointed rod, and the female adapter transition cylindrical section of the female adapter other end passes through mill
Wipe the mode of welding and one end of the body of rod connects, the diameter of female adapter transition cylindrical section is identical with the diameter of the body of rod, outer spiral shell
One end of line joint is provided with the external screw thread for jointed rod, and the male connection transition cylindrical section of the male connection other end leads to
Cross the mode of friction welding and the other end of the body of rod connects, the diameter of male connection transition cylindrical section and the diameter phase of the body of rod
Together, wear-resistant strip is provided with the part of body of rod interlude is cylindrical.
2. high strength friction according to claim 1 welds heavy weight drill pipe, it is characterized in that：The big footpath section of female adapter
Diameter is identical with the diameter of the big footpath section of the male connection.
3. high strength friction according to claim 1 welds heavy weight drill pipe, it is characterized in that：Internal thread in the female adapter
Taper it is identical with the taper of the male connection.
4. high strength friction according to claim 1 welds heavy weight drill pipe, it is characterized in that：It is cylindrical in the part of body of rod interlude
Wear-resistant strip is provided with, the length of the wear-resistant strip accounts for the 2/3 of body of rod length.
5. high strength friction according to claim 1 welds heavy weight drill pipe, it is characterized in that：The body of rod it is generally cylindric
Structure, the body of rod are made of metal material, and the body of rod is that the work meaning in the solid body of rod or hollow lever is a kind of.
6. high strength friction according to claim 1 welds heavy weight drill pipe, it is characterized in that：The female adapter and external screw thread
Joint is made up of metal material.
7. the friction welding method of high strength friction weldering heavy weight drill pipe described in claim 1, it is characterized in that：Comprise the following steps：
（1）The end that female adapter, the body of rod, male connection will be welded is unilateral into carrying out, ensure the clean nothing in its end face
Impurity；
（2）The body of rod is radially fixed, female adapter, male connection and the body of rod are welded by the way of friction welding
Connect, during welding, rotate female adapter, male connection, and apply axial thrust to the body of rod, adjustment upset force is：1583±
25PSI, rotating speed are：605 ± 25r/min, flywheel counter weight：5500（A takes turns）+7500（B takes turns）+7500（B takes turns）, by upset force
Make material that plastic deformation and flowing occur with rotating speed, and produce energy required when drill pipe friction connects, so by the body of rod with it is interior
Nipple, male connection are welded into stem；
（3）By step（2）The drilling rod being welded carries out+temper of annealing, and annealing holding temperature is 730 DEG C, soaking time 600
Second, tempering holding temperature is 710 DEG C, soaking time 660 seconds；
（4）To weld seam driving overlap, polishing, ultrasonic examination and the progress mechanics properties testing of the drilling rod being welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772521.2A CN107461158A (en) | 2017-08-31 | 2017-08-31 | High strength friction welds heavy weight drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772521.2A CN107461158A (en) | 2017-08-31 | 2017-08-31 | High strength friction welds heavy weight drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107461158A true CN107461158A (en) | 2017-12-12 |
Family
ID=60551157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710772521.2A Pending CN107461158A (en) | 2017-08-31 | 2017-08-31 | High strength friction welds heavy weight drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461158A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057725A (en) * | 2018-09-30 | 2018-12-21 | 山西风雷钻具有限公司 | One kind is risen and fallen cylindrical drill bar |
| CN109899004A (en) * | 2019-03-12 | 2019-06-18 | 淮北林光钻探机电工程有限公司 | A kind of exploration casing and its manufacturing method |
| CN110102985A (en) * | 2019-06-05 | 2019-08-09 | 刘艺纯 | Impact the reproducing method of screw thread drill steel |
| US11717911B1 (en) * | 2020-10-22 | 2023-08-08 | Paul Po Cheng | Method of fusing metal objects together |
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| RU68090U1 (en) * | 2007-07-19 | 2007-11-10 | Закрытое акционерное общество Компания "Темерсо" | DRILL PIPE WITH CONNECTING LOCKS |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057725A (en) * | 2018-09-30 | 2018-12-21 | 山西风雷钻具有限公司 | One kind is risen and fallen cylindrical drill bar |
| CN109899004A (en) * | 2019-03-12 | 2019-06-18 | 淮北林光钻探机电工程有限公司 | A kind of exploration casing and its manufacturing method |
| CN110102985A (en) * | 2019-06-05 | 2019-08-09 | 刘艺纯 | Impact the reproducing method of screw thread drill steel |
| US11717911B1 (en) * | 2020-10-22 | 2023-08-08 | Paul Po Cheng | Method of fusing metal objects together |
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Application publication date: 20171212 |