CN202348144U - Laser-surface-hardened drill rod joint - Google Patents
Laser-surface-hardened drill rod joint Download PDFInfo
- Publication number
- CN202348144U CN202348144U CN2011205408201U CN201120540820U CN202348144U CN 202348144 U CN202348144 U CN 202348144U CN 2011205408201 U CN2011205408201 U CN 2011205408201U CN 201120540820 U CN201120540820 U CN 201120540820U CN 202348144 U CN202348144 U CN 202348144U
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- CN
- China
- Prior art keywords
- drill rod
- rod joint
- laser
- hardened
- thread
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a laser-surface-hardened drill rod joint. The technical scheme adopted by the utility model is as follows: the laser-surface-hardened drill rod joint comprises an external-thread drill rod joint and an internal-thread drill rod joint, wherein external threads are formed on the external-thread drill rod joint according to the conventional method, internal threads are formed on the internal-thread drill rod joint according to the conventional method, the crest, side face and surface hardened zone of the external threads have the depth of 0.1-1.5 mm and the hardness of 45-63 HRC, and the crest, side face and surface hardened zone of the internal threads have the depth of 0.1-1.5 mm and the hardness of 45-63 HRC. Compared with the prior art, the laser-surface-hardened drill rod joint has the advantages that the wearing resistance is high, the phenomenon of thread gluing is reduced, and the service life of the drill rod joint is prolonged; and the laser-surface-hardened drill rod joint has the characteristics of low cost, convenience and fastness in operation and high reutilization ratio and is conveniently and widely applied to the fields of oil and natural gas drilling and the trenchless field.
Description
One, technical field
The utility model relates to the tool joint that a kind of oil, gas drilling and non-excavation use, and is a kind of laser surface hardening tool joint concretely.
Two, background technology
At present, in oil, gas drilling and non-excavating construction process, drilling rod is as main drilling tool; Shackle is frequently gone up in last shackle, and especially in the non-excavating construction process, the shackle frequency is higher on the drilling rod; And on unload compare in the process oil, gas drilling, drill rod thread more easy abrasion with the thread gluing failure phenomenon appears, reduce the application life of drilling rod; Prolong drilling well and non-excavating construction cycle, brought bigger economic loss for non-excavation and wellbore construction.
Three, utility model content
The purpose of the utility model is exactly the defective that exists to prior art, a kind of high-wearing feature is provided, has reduced screw thread thread gluing phenomenon, prolongs the tool joint laser surface hardening tool joint in application life.
Its technical scheme is: comprise tool joint pin and tool joint box; Be processed with external screw thread by conventional method on the tool joint pin; Be processed with internal thread by conventional method on the tool joint box, the degree of depth in said externally threaded crest, side and case hardening district is 0.1-1.5mm, and hardness is 45-63HRC; The degree of depth in said externally threaded crest, side and case hardening district is 0.1-1.5mm, and hardness is 45-63HRC.
The utility model compared with prior art; The advantage that has high-wearing feature, reduced screw thread thread gluing phenomenon, prolonged tool joint application life; And with low cost, simple operation, recycling rate of waterused are high, are convenient to oil, gas drilling and the field extensive use of non-excavation.
Four, description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the enlarged diagram of the utility model A portion structure.
Five, the specific embodiment
Like Fig. 1-shown in Figure 2; A kind of laser surface hardening tool joint comprises tool joint pin 1 and tool joint box 2; Be processed with external screw thread 3 by conventional method on the tool joint pin 1, be processed with internal thread 4 by conventional method on the tool joint box 2, increase the laser radiation of carrying out external screw thread 3 and internal thread 4 surfaces; The degree of depth in the crest 5 of external screw thread 3, side 7 and case hardening district 9 is 0.1-1.5mm; Hardness is 45-63HRC, and the degree of depth in the crest 6 of external screw thread 3, side 8 and case hardening district 10 is 0.1-1.5mm, and hardness is 45-63HRC.Under routine inspection, external screw thread 3 does not have distortion, any surface finish flawless with internal thread 4.External screw thread 3 and internal thread 4 are in last shackle use, because the surface has higher hardness, thereby have improved tool joint thread abrasion resistance and sticky thread resistance ability.
Claims (1)
1. laser surface hardening tool joint; Comprise tool joint pin and tool joint box, it is characterized in that: be processed with external screw thread by conventional method on the tool joint pin, be processed with internal thread by conventional method on the tool joint box; The degree of depth in said externally threaded crest, side and case hardening district is 0.1-.5mm; Hardness is 45-63HRC, and the degree of depth in said externally threaded crest, side and case hardening district is 0.1-1.5mm, and hardness is 45-63HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205408201U CN202348144U (en) | 2011-12-15 | 2011-12-15 | Laser-surface-hardened drill rod joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205408201U CN202348144U (en) | 2011-12-15 | 2011-12-15 | Laser-surface-hardened drill rod joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348144U true CN202348144U (en) | 2012-07-25 |
Family
ID=46537153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205408201U Expired - Fee Related CN202348144U (en) | 2011-12-15 | 2011-12-15 | Laser-surface-hardened drill rod joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110628994A (en) * | 2019-10-30 | 2019-12-31 | 澳普洛钻探工具(无锡)有限公司 | Production process of sealing drill rod |
-
2011
- 2011-12-15 CN CN2011205408201U patent/CN202348144U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110628994A (en) * | 2019-10-30 | 2019-12-31 | 澳普洛钻探工具(无锡)有限公司 | Production process of sealing drill rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121215 |