CN202228000U - Direct connection type sleeve pipe - Google Patents
Direct connection type sleeve pipe Download PDFInfo
- Publication number
- CN202228000U CN202228000U CN2011203649684U CN201120364968U CN202228000U CN 202228000 U CN202228000 U CN 202228000U CN 2011203649684 U CN2011203649684 U CN 2011203649684U CN 201120364968 U CN201120364968 U CN 201120364968U CN 202228000 U CN202228000 U CN 202228000U
- Authority
- CN
- China
- Prior art keywords
- internal thread
- sleeve pipe
- type sleeve
- face
- internal
- 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
Links
Images
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model provides a direct connection type sleeve pipe which is reasonable in structure, simple, practical and good in torsion-resistant effect. The direct connection type sleeve pipe comprises external threads (1), internal threads (2), a torsion-resistant step (3) and an internal thread end face (4). The external threads (1) and the internal threads (2) are of trapezoidal thread design so as to improve connection strength, trapezoidal threads of both the external threads (1) and the internal threads (2) are meshed with each other, the torsion-resistant step (3) is arranged on the external threads (1), the internal thread end face (4) is arranged on the internal threads (2), and the torsion-resistant step (3) is completely aligned with the internal thread end face (4). The direct connection type sleeve pipe has the advantages of being simple and reasonable in structure and safe and convenient to use, and effectively achieving good torsion-resistant effect.
Description
Technical field
The utility model relates to a kind of petroleum casing pipe device, especially a kind of direct linkage type sleeve pipe.
Background technology
In the oil development process, a lot of old wells are arranged, dried-up well, conventional sleeve pipe is difficult to satisfy the exploitation of waste and old well owing to external diameter and box cupling reason, shines into great waste to national wealth.
Summary of the invention
The purpose of the utility model is to provide a kind of direct linkage type sleeve pipe of effective direct linkage type sleeve pipe rational in infrastructure, simple and practical, antitorque, and it comprises external screw thread, internal thread, antitorque step, internal thread end face; External screw thread and internal thread adopt the trapezoidal thread design to increase bonding strength, the trapezoidal thread engagement of external screw thread and internal thread, and external screw thread is provided with antitorque step, and internal thread is provided with the internal thread end face, antitorque step and internal thread end face complete matching.Owing to adopted the direct linkage type sleeve pipe, can effectively in the secondary development process of waste and old well, play the characteristics of good well cementation, antitorque and perforation.The utility model is simple and reasonable for structure, and is safe and convenient to use, can effectively play good sealing effectiveness.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
The specific embodiment
The direct linkage type sleeve pipe comprises external screw thread 1, internal thread 2, antitorque step 3, internal thread end face 4; External screw thread 1 adopts the trapezoidal thread design to increase bonding strength with internal thread 2, the trapezoidal thread engagement of external screw thread 1 and internal thread 2, and external screw thread 1 is provided with antitorque step 3, and internal thread 2 is provided with internal thread end face 4, antitorque step 3 and internal thread end face 4 complete matchings.In the tight process of machine, the trapezoidal thread engagement of external screw thread 1 and internal thread 2, antitorque step 3 and internal thread end face 4 complete matchings reach antitorque effect, can effectively in the secondary development process of waste and old well, play the characteristics of good well cementation, antitorque and perforation.
Claims (1)
1. a direct linkage type sleeve pipe is characterized in that: comprise external screw thread (1), internal thread (2), antitorque step (3), internal thread end face (4); External screw thread (1) adopts the trapezoidal thread design to increase bonding strength with internal thread (2); External screw thread (1) meshes with the trapezoidal thread of internal thread (2); External screw thread (1) is provided with antitorque step (3), and internal thread (2) is provided with internal thread end face (4), antitorque step (3) and internal thread end face (4) complete matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203649684U CN202228000U (en) | 2011-09-22 | 2011-09-22 | Direct connection type sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203649684U CN202228000U (en) | 2011-09-22 | 2011-09-22 | Direct connection type sleeve pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228000U true CN202228000U (en) | 2012-05-23 |
Family
ID=46078588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203649684U Expired - Fee Related CN202228000U (en) | 2011-09-22 | 2011-09-22 | Direct connection type sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265191A (en) * | 2014-09-28 | 2015-01-07 | 天津德华石油装备制造有限公司 | TTGM-7 directly-connected special thread structure oil casing |
-
2011
- 2011-09-22 CN CN2011203649684U patent/CN202228000U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265191A (en) * | 2014-09-28 | 2015-01-07 | 天津德华石油装备制造有限公司 | TTGM-7 directly-connected special thread structure oil casing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203783486U (en) | Thread gluing prevention drill rod joint | |
| CN202228000U (en) | Direct connection type sleeve pipe | |
| CN202540551U (en) | Loose core mechanism of elbow pipe | |
| CN202348139U (en) | Drilling pipe adapter structure used for petroleum drilling | |
| CN202986528U (en) | Compasses preventing hand from being stabbed | |
| CN201874484U (en) | Wellhead connector for glass fiber reinforced plastic casing | |
| CN204225791U (en) | Direct linkage type special thread structure tubing and casing | |
| CN2871829Y (en) | Reversed sandproofing tubular column | |
| CN203515359U (en) | Torque-transmission type easy-detachment quick connector | |
| CN202249815U (en) | Tooth-shaped buckle for petroleum case pipe joint | |
| CN203603783U (en) | Special fastener with double-line threads | |
| CN202611609U (en) | Drill pipe connector with all-steel protective cap | |
| CN203559801U (en) | Connection structure for inner tube and nipple of drill rod | |
| CN203513826U (en) | Single crystal double protection heavy hammer device | |
| CN201810630U (en) | Transmission shaft connecting stud | |
| CN202520244U (en) | Direct connecting type coupling-free casing | |
| CN201934839U (en) | Concentrated pipe | |
| CN201784841U (en) | Transmission shaft of TMC packing machine | |
| CN203081326U (en) | Novel composite sleeve pipe for oil exploitation | |
| CN201731041U (en) | Input shaft of planetary reduction gear | |
| CN203362147U (en) | Manifold capable of directly adding wax balls for fracturing construction | |
| CN202990258U (en) | Rubber round plug | |
| CN202225163U (en) | Oil seal remover | |
| CN202000909U (en) | Combined drill stem with long service life | |
| CN202606925U (en) | Safe gas guide type gas pipeline under-pressure tapper |
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: 20120523 Termination date: 20120922 |