CN205477407U - Shale air to open hair screwed joint - Google Patents
Shale air to open hair screwed joint Download PDFInfo
- Publication number
- CN205477407U CN205477407U CN201620004741.1U CN201620004741U CN205477407U CN 205477407 U CN205477407 U CN 205477407U CN 201620004741 U CN201620004741 U CN 201620004741U CN 205477407 U CN205477407 U CN 205477407U
- Authority
- CN
- China
- Prior art keywords
- face
- screw thread
- male cone
- strobilus masculinus
- cylinder
- 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 discloses a shale air to open hair screwed joint belongs to the screwed joint field. The utility model discloses a body and coupling, the body is divided into the three -section by the sealed face of two male cone (strobilus masculinus)s, and each duan shangjun is equipped with the external screw thread, and the outside of the sealed face of each male cone (strobilus masculinus) is the tip of long nose, and the tip of long nose connects the external screw thread, be equipped with the first face of cylinder and the second face of cylinder between sealed face of male cone (strobilus masculinus) and the external screw thread, the first face of cylinder and the second face of cylinder are through outer main antitorque circular bead face, be equipped with on the coupling two with the sealed face of the sealed face complex internal thread conical surface of male cone (strobilus masculinus), the sealed face of the two internal thread conical surfaces divide into the three -section with the coupling, the both sides of the sealed face of each internal thread conical surface are the screw thread escape, other positions of each section of coupling are equipped with the internal thread with matching the external screw, the internal thread root meets with the screw thread escape, the sealed face of each internal thread conical surface connects through the antitorque circular bead facial features of interior owner with the screw thread escape.
Description
Technical field
This utility model relates to nipple field, particularly to a kind of shale gas exploitation nipple.
Background technology
Chinese shale gas reserves account for 1/3rd of domestic natural gas, and the nipple of exploitation shale gas wants to bear big bending and high pressure break pressure break, and the height meeting horizontal well is antitorque incompressible with height.
Existing API nipple, it is impossible to meet requirements above, although traditional nipple seals stable, has anti-galling and crosses the feature that the i.e. compression performance of moment of torsion is excellent, but processing cost is high.
Utility model content
In order to make up the deficiencies in the prior art, this utility model provides a kind of shale gas exploitation nipple.
The technical solution of the utility model is:
A kind of shale gas exploitation nipple, including body 20 and box cupling 10, described body 20 is divided into three sections by two male cone (strobilus masculinus) sealing surfaces 25, each section is equipped with external screw thread 21, the end that outside is long nose 26 of each described male cone (strobilus masculinus) sealing surface 25, the end 26 of described long nose connects external screw thread 21；Being provided with first face of cylinder 22 and second face of cylinder 24 between described male cone (strobilus masculinus) sealing surface 25 and external screw thread 21, described first face of cylinder 22 and second face of cylinder 24 are by the antitorque circular bead surface of outer master 23；
Described box cupling 10 is provided with two female thread conical surface seal faces 15 coordinated with described male cone (strobilus masculinus) sealing surface 25, described in two, box cupling 10 is divided into three sections by female thread conical surface seal face 15, the both sides in each described female thread conical surface seal face 15 are Gewindefreistiche 12, and other positions of each section of box cupling 10 are provided with the female thread 11 coordinated with external screw thread 21；Female thread 11 root connects with Gewindefreistiche 12；Each described female thread conical surface seal face 15 is connected by the antitorque circular bead surface of interior master 13 with Gewindefreistiche 12.
Preferably, described male cone (strobilus masculinus) sealing surface 25 and female thread conical surface seal face 15 interference fit.
Preferably, by cambered surface 14 transition between the described antitorque circular bead surface of interior master 13 and female thread conical surface seal face 15.
The beneficial effects of the utility model are:
This utility model shale gas exploitation nipple, simple in construction, it is easy to processing, and big bending and high pressure break pressure break can be born, and the height meeting horizontal well is antitorque incompressible with height.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of this utility model shale gas exploitation nipple；
Fig. 2 is the partial enlargement structural representation of box cupling in this utility model shale gas exploitation nipple；
Fig. 3 is the partial enlargement structural representation of this utility model shale gas exploitation nipple middle tube body.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of shale gas exploitation nipple, including body 20 and box cupling 10, described body 20 is divided into three sections by two male cone (strobilus masculinus) sealing surfaces 25, external screw thread 21 it is equipped with on each section, the end that outside is long nose 26 of each described male cone (strobilus masculinus) sealing surface 25, the end 26 of described long nose connects external screw thread 21；Being provided with first face of cylinder 22 and second face of cylinder 24 between described male cone (strobilus masculinus) sealing surface 25 and external screw thread 21, described first face of cylinder 22 and second face of cylinder 24 are by the antitorque circular bead surface of outer master 23；
Described box cupling 10 is provided with the female thread conical surface seal face 15 of two and described male cone (strobilus masculinus) sealing surface 25 interference fit, described in two, box cupling 10 is divided into three sections by female thread conical surface seal face 15, the both sides in each described female thread conical surface seal face 15 are Gewindefreistiche 12, and other positions of each section of box cupling 10 are provided with the female thread 11 coordinated with external screw thread 21；Female thread 11 root connects with Gewindefreistiche 12；Each described female thread conical surface seal face 15 is connected by the antitorque circular bead surface of interior master 13 with Gewindefreistiche 12.By cambered surface 14 transition between the described antitorque circular bead surface of interior master 13 and female thread conical surface seal face 15.
Claims (3)
1. a shale gas exploitation nipple, including body (20) and box cupling (10), it is characterised in that:
Described body (20) is divided into three sections by two male cone (strobilus masculinus) sealing surfaces (25), and each section is equipped with external screw thread (21), the end that outside is long nose (26) of each described male cone (strobilus masculinus) sealing surface (25), and the end (26) of described long nose connects external screw thread (21)；Being provided with first face of cylinder (22) and second face of cylinder (24) between described male cone (strobilus masculinus) sealing surface (25) and external screw thread (21), described first face of cylinder (22) and second face of cylinder (24) are by the antitorque circular bead surface of outer master (23)；
Described box cupling (10) is provided with two female thread conical surface seal faces (15) coordinated with described male cone (strobilus masculinus) sealing surface (25), described in two, box cupling (10) is divided into three sections by female thread conical surface seal face (15), the both sides of each described female thread conical surface seal face (15) are Gewindefreistiche (12), and other positions of each section of box cupling (10) are provided with the female thread (11) coordinated with external screw thread (21)；Female thread (11) root connects with Gewindefreistiche (12)；Each described female thread conical surface seal face (15) is connected by the antitorque circular bead surface of interior master (13) with Gewindefreistiche (12).
2. shale gas exploitation nipple as claimed in claim 1, it is characterised in that: described male cone (strobilus masculinus) sealing surface (25) and female thread conical surface seal face (15) interference fit.
3. shale gas exploitation nipple as claimed in claim 1, it is characterised in that: by cambered surface (14) transition between the antitorque circular bead surface of described interior master (13) and female thread conical surface seal face (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620004741.1U CN205477407U (en) | 2016-01-06 | 2016-01-06 | Shale air to open hair screwed joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620004741.1U CN205477407U (en) | 2016-01-06 | 2016-01-06 | Shale air to open hair screwed joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477407U true CN205477407U (en) | 2016-08-17 |
Family
ID=56664784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620004741.1U Expired - Fee Related CN205477407U (en) | 2016-01-06 | 2016-01-06 | Shale air to open hair screwed joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194052A (en) * | 2016-09-05 | 2016-12-07 | 天津钢管集团股份有限公司 | High-performance nipple special buckle oil well pipe metal to metal seal structure |
-
2016
- 2016-01-06 CN CN201620004741.1U patent/CN205477407U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194052A (en) * | 2016-09-05 | 2016-12-07 | 天津钢管集团股份有限公司 | High-performance nipple special buckle oil well pipe metal to metal seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170106 |