CN203476233U - Drill rod joint with composite structure - Google Patents
Drill rod joint with composite structure Download PDFInfo
- Publication number
- CN203476233U CN203476233U CN201320565644.6U CN201320565644U CN203476233U CN 203476233 U CN203476233 U CN 203476233U CN 201320565644 U CN201320565644 U CN 201320565644U CN 203476233 U CN203476233 U CN 203476233U
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- CN
- China
- Prior art keywords
- joint
- drill rod
- rod joint
- base tube
- layer
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- Expired - Fee Related
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Abstract
The utility model relates to a drill rod joint, and discloses a drill rod joint with a composite structure. The drill rod joint with the composite structure comprises a male joint body and a female joint body, and is characterized in that the male joint body is formed by a base tube layer and a covering tube layer in a composite mode; the female joint body is formed by a base tube layer and a covering tube layer in a composite mode; shoulders are arranged between the base tube layers and the covering tube layers. The drill rod joint with the composite structure can meet the requirement for stress strength of the tube body inner wall of the drill rod joint and the requirement for corrosion resistance and wear resistance of the tube body outer wall of the drill rod joint, and meanwhile solves the problem that the cost is too high due to the adoption of single metal material, and the cost can be reduced and resources can be saved beneficially through the adoption of double metal composite tubes instead of the single alloy material.
Description
Technical field
The utility model relates to tool joint field, specifically a kind of tool joint with composite construction.
Background technology
At present, traditional tool joint adopts homogenous material manufacture conventionally, and the environment of oil drilling is usually very severe, the tool joint of using as oil drilling needs to meet following 2 requirements conventionally: the one, and the inwall of tool joint body need to meet the design stress of pipeline, and this just needs inwall to have certain intensity; The 2nd, the outer wall of tool joint body need to meet the conditions such as corrosion-resistant and wearing and tearing.Because the inner and outer wall of existing tool joint is all manufactured by homogenous material, i.e. tool joint is single structure, and the difficulty that simultaneously meet above 2 requirements is larger.
Summary of the invention
The purpose of this utility model is to provide a kind of tool joint with composite construction, can solve the problem in background technology, can meet intensity and the requirement such as corrosion-resistant, wear-resistant simultaneously.
In order to solve the problems of the technologies described above, the technical scheme adopting is: a kind of tool joint with composite construction, comprise male joint and female joint, and it is characterized in that, male joint is by base tube layer and cover that pipe layer is compound to be formed; Female joint is also by base tube layer with cover that pipe layer is compound to be formed, and at base tube layer with cover between pipe layer and be provided with shoulder.
Preferred: the base tube layer of above-mentioned male joint and female joint all adopts L80 steel, cover pipe layer and all adopt 825 steel.
The beneficial effects of the utility model are: tool joint of the present utility model adopts two kinds of different metal composite manufactures, can meet the requirement of the stress intensity of tool joint inboard wall of tube body, also can meet the corrosion-resistant and wear-resistant requirement of tool joint tube wall, solved because adopting the problem of single metal material selling at exorbitant prices simultaneously, adopt composite bimetal pipe to substitute single alloy material and contribute to reduce costs, economize on resources.
Accompanying drawing explanation
Fig. 1, male joint structure chart of the present utility model;
Fig. 2, female joint structure chart of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail.
As shown in Figure 1, be the structure chart of male joint of the present utility model, male joint 1 is by base tube layer 2 and cover that pipe layer 3 is compound to be formed.As shown in Figure 2, be the structure chart of female joint of the present utility model, female joint 4 is by base tube layer 2 and cover that pipe layer 3 is compound to be formed, and base tube layer 2 and cover between pipe layer 3 and be also provided with shoulder 5 strengthens base tube layer 2 and covers the bond strength of pipe layer 3, prevents from coming off.Tool joint of the present utility model comprises male joint 1 and female joint 4.
The specific embodiment: in the present embodiment, base tube layer 2 adopts L80 steel, covers pipe layer 3 and adopts 825 steel.Male joint 1 adopt by base tube layer 2 with cover a pipe layer 3 metallurgical mode of being combined with hot extrusion method with centrifugal casting and connect and make, there is higher intensity, good stability.Female joint 4 adopts base tube layer 2, cover a pipe layer 3 metallurgical mode of being combined with hot extrusion method with centrifugal casting with shoulder 5 is connected and makes, and has equally higher intensity, and good stability.
The utility model adopts composite bimetal pipe to substitute single alloy material to contribute to reduce costs, economize on resources, and has met the corrosion-resistant and wear-resistant of the intensity of inwall and outer wall simultaneously.
Claims (3)
1. there is a tool joint for composite construction, comprise male joint (1) and female joint (4), it is characterized in that: male joint (1) is by base tube layer (2) and cover pipe layer (3) compound formation; Female joint (4) is also by base tube layer (2) with cover pipe layer (3) compound formation, and at base tube layer (2) with cover between pipe layer (3) and be provided with shoulder (5).
2. the tool joint with composite construction according to claim 1, is characterized in that: the base tube layer (2) of male joint (1) adopts L80 steel, covers pipe layer (3) and adopts 825 steel.
3. the tool joint with composite construction according to claim 1, is characterized in that: the base tube layer (2) of female joint (4) adopts L80 steel, covers pipe layer (3) and adopts 825 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565644.6U CN203476233U (en) | 2013-09-12 | 2013-09-12 | Drill rod joint with composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565644.6U CN203476233U (en) | 2013-09-12 | 2013-09-12 | Drill rod joint with composite structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476233U true CN203476233U (en) | 2014-03-12 |
Family
ID=50224580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320565644.6U Expired - Fee Related CN203476233U (en) | 2013-09-12 | 2013-09-12 | Drill rod joint with composite structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888570A (en) * | 2016-06-21 | 2016-08-24 | 东营威玛石油钻具有限公司 | Washout preventing tool connector |
| CN105888571A (en) * | 2016-06-21 | 2016-08-24 | 东营威玛石油钻具有限公司 | Composite-material double-shoulder thread joint |
-
2013
- 2013-09-12 CN CN201320565644.6U patent/CN203476233U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888570A (en) * | 2016-06-21 | 2016-08-24 | 东营威玛石油钻具有限公司 | Washout preventing tool connector |
| CN105888571A (en) * | 2016-06-21 | 2016-08-24 | 东营威玛石油钻具有限公司 | Composite-material double-shoulder thread joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20170912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |