CN204098797U - A kind of upset end electric resistance welding connects heavy weight drill pipe - Google Patents
A kind of upset end electric resistance welding connects heavy weight drill pipe Download PDFInfo
- Publication number
- CN204098797U CN204098797U CN201420555639.1U CN201420555639U CN204098797U CN 204098797 U CN204098797 U CN 204098797U CN 201420555639 U CN201420555639 U CN 201420555639U CN 204098797 U CN204098797 U CN 204098797U
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- China
- Prior art keywords
- drill pipe
- heavy weight
- weight drill
- rod
- pipe body
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- 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.)
- Expired - Lifetime
Links
- 238000003466 welding Methods 0.000 title claims abstract description 36
- 230000008719 thickening Effects 0.000 claims abstract description 17
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of upset end electric resistance welding and connect heavy weight drill pipe, comprise the heavy weight drill pipe body of rod, the upper end friction welding of the described heavy weight drill pipe body of rod is connected with female adapter, the lower end friction welding of the described heavy weight drill pipe body of rod is connected with male connection, and the central exterior surface of the described heavy weight drill pipe body of rod is connected with thickening wear-resistant sleeve by electric resistance welding.The utility model structure is simple, and welding heat affected zone is little, and simple operation, recycling rate of waterused are high, long service life.
Description
Technical field
The utility model relates to the heavy weight drill pipe that the fields such as drilling well and no-dig technique such as a kind of oil, natural gas, coal bed gas, shale gas use, and is specifically related to a kind of upset end electric resistance welding and connects heavy weight drill pipe.
Background technology
At present, in friction welding heavy weight drill pipe processing and manufacturing process, shank portion mostly adopts diameter to be greater than the round steel of upset end diameter in the middle of the body of rod or thick-walled pipe carries out turnery processing, because upset end external diameter differs comparatively greatly with body of rod external diameter, causes the waste of rod body material cost.
Summary of the invention
The purpose of this utility model is exactly the defect existed for prior art, and provide a kind of structure simple, welding heat affected zone is little, and simple operation, recycling rate of waterused are high, and the upset end electric resistance welding of long service life connects heavy weight drill pipe.
Its technical scheme is: a kind of upset end electric resistance welding connects heavy weight drill pipe, comprise the heavy weight drill pipe body of rod, the upper end friction welding of the described heavy weight drill pipe body of rod is connected with female adapter, the lower end friction welding of the described heavy weight drill pipe body of rod is connected with male connection, and the central exterior surface of the described heavy weight drill pipe body of rod is connected with thickening wear-resistant sleeve by electric resistance welding.
The described heavy weight drill pipe body of rod is greater than other positions external diameter 0.2mm-1mm with the body of rod external diameter thickening wear-resistant strip link position, and is connected with thickening wear-resistant sleeve interference fit.
Described thickening wear-resistant sleeve is the wear-resisting alloy steel wear-resistant sleeve of hardness >=HRC45.
The utility model compared with prior art, has the following advantages: structure is simple, and welding heat affected zone is little, and simple operation, recycling rate of waterused are high, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Detailed description of the invention
With reference to Fig. 1, a kind of upset end electric resistance welding connects heavy weight drill pipe, comprise the heavy weight drill pipe body of rod 1, the upper end friction welding of the described heavy weight drill pipe body of rod 1 is connected with female adapter 2, the lower end friction welding of the described heavy weight drill pipe body of rod 1 is connected with male connection 3, and the central exterior surface of the described heavy weight drill pipe body of rod 1 is connected with by electric resistance welding and thickeies wear-resistant sleeve 4.
The described heavy weight drill pipe body of rod is greater than other positions external diameter 0.2mm-1mm with the body of rod external diameter thickening wear-resistant strip link position, and is connected with thickening wear-resistant sleeve interference fit.
Described thickening wear-resistant sleeve is the wear-resisting alloy steel wear-resistant sleeve of hardness >=HRC 45.
Before the heavy weight drill pipe body of rod 1 with female adapter 2 and male connection 3 friction welding, connected by electric resistance welding in the middle of the heavy weight drill pipe body of rod 1 and thicken wear-resistant sleeve 4.The heavy weight drill pipe body of rod 1 and the body of rod external diameter thickening wear-resistant strip 4 link position, 0.2mm-1mm larger than other positions of the heavy weight drill pipe body of rod 1, and be connected with thickening wear-resistant sleeve 4 interference fit.Wear-resistant sleeve 4 adopts the wear-resisting alloy steel of hardness >=HRC45 to make, electric resistance welding two electrode is pressed in the heavy weight drill pipe body of rod 1 inner surface respectively and thickeies wear-resistant sleeve 4 external surface, and impose electric current, carry out spot welding, different according to heavy weight drill pipe specification, the quantity thickening spot welding 5 between wear-resistant sleeve 4 and the heavy weight drill pipe body of rod 1 is not less than 30, and is uniformly distributed at circumferencial direction, and welding terminates to carry out secondary energising temper to welding zone afterwards.Thus, thicken wear-resistant sleeve 4 and pass through resistance spot welding with the heavy weight drill pipe body of rod 1, achieve a fixed connection, because heavy weight drill pipe 1 is in drilling process, thickening wear-resistant sleeve 4 does not bear and creeps into the load such as moment of torsion and pulling force accordingly, welding heat affected zone is little, and primarily of female adapter 2 and male connection 3 and wall friction, thicken wear-resistant sleeve 4 relatively light with wall friction, therefore, on by resistance spot welding mode, thickening wear-resistant sleeve 4 is connected with the heavy weight drill pipe body of rod 1, simple operation, recycling rate of waterused are high, long service life, meets the requirement of drilling well.
Claims (3)
1. a upset end electric resistance welding connects heavy weight drill pipe, comprise the heavy weight drill pipe body of rod, it is characterized in that: the upper end friction welding of the described heavy weight drill pipe body of rod is connected with female adapter, the lower end friction welding of the described heavy weight drill pipe body of rod is connected with male connection, and the central exterior surface of the described heavy weight drill pipe body of rod is connected with thickening wear-resistant sleeve by electric resistance welding.
2. a kind of upset end electric resistance welding according to claim 1 connects heavy weight drill pipe, it is characterized in that: the described heavy weight drill pipe body of rod is greater than other positions external diameter 0.2mm-1mm with the body of rod external diameter thickening wear-resistant strip link position, and be connected with thickening wear-resistant sleeve interference fit.
3. a kind of upset end electric resistance welding according to claim 1 connects heavy weight drill pipe, it is characterized in that: described thickening wear-resistant sleeve is the wear-resisting alloy steel wear-resistant sleeve of hardness >=HRC45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555639.1U CN204098797U (en) | 2014-09-26 | 2014-09-26 | A kind of upset end electric resistance welding connects heavy weight drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555639.1U CN204098797U (en) | 2014-09-26 | 2014-09-26 | A kind of upset end electric resistance welding connects heavy weight drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204098797U true CN204098797U (en) | 2015-01-14 |
Family
ID=52267234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420555639.1U Expired - Lifetime CN204098797U (en) | 2014-09-26 | 2014-09-26 | A kind of upset end electric resistance welding connects heavy weight drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204098797U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014273A (en) * | 2016-07-13 | 2016-10-12 | 江阴德玛斯特钻具有限公司 | High-strength anti-sulfur heavy weight drill pipe |
| CN107461158A (en) * | 2017-08-31 | 2017-12-12 | 山西风雷钻具有限公司 | High strength friction welds heavy weight drill pipe |
-
2014
- 2014-09-26 CN CN201420555639.1U patent/CN204098797U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014273A (en) * | 2016-07-13 | 2016-10-12 | 江阴德玛斯特钻具有限公司 | High-strength anti-sulfur heavy weight drill pipe |
| CN107461158A (en) * | 2017-08-31 | 2017-12-12 | 山西风雷钻具有限公司 | High strength friction welds heavy weight drill pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200915 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. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150114 |
|
| CX01 | Expiry of patent term |