CN207538792U - Pierce formula well casing nipple - Google Patents
Pierce formula well casing nipple Download PDFInfo
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- CN207538792U CN207538792U CN201721357647.5U CN201721357647U CN207538792U CN 207538792 U CN207538792 U CN 207538792U CN 201721357647 U CN201721357647 U CN 201721357647U CN 207538792 U CN207538792 U CN 207538792U
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- China
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- connector
- well casing
- rotation device
- casing nipple
- formula well
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Abstract
The utility model offer pierces formula well casing nipple, wherein the pin end and female connector are using the pipe screw thread with certain taper, thread taper 1:2~1:10；Connector outer diameter has protrusion, and outer diameter is more than tube body, and raised shoulder and the elevator of female connector coordinate；Joint screw thread tooth uses nonstandard saw-tooth thread tooth, and loading end and the connector longitudinal axis of ridge have certain angle；There is seal groove, when assembling is sealed using O-ring seal on female connector；Pin end is equipped with anti-rotation device slot, and anti-rotation device is installed in anti-rotation device slot；Pin and box sub open end, which is both provided with, draws button slope；Advantage is：Connector outer diameter has protrusion, and going into the well, lifting is convenient and efficient, and strength of joint high bearing capacity is strong, and product hermeticity is good；Connector is designed with anti-rotation device, safe with anti-rotation；Connector make-up speed is fast, has a wide range of application.
Description
Technical field
The utility model is related to nipple field, more particularly, to piercing formula well casing nipple.
Background technology
Rapidly increase recently as expanding economy oil demand amount, offshore oil drilling is carried out comprehensively, particularly position
In Bohai Rim, the South Sea, the East Sea, Yangtze River Delta Area, Pearl River Delta area etc..It is extensive since eighties initial stage China
Offshore oil drilling and development.Well casing is made of tube body and connector, it primarily serve water proof, every mud, every husky
Effect, by establishing a circulatory system, prevents from polluting marine environment；Next accomplishes that inner layer sleeve is protected smoothly to bore
Into, it is ensured that project progress.Well casing demand in drilling engineering is huge, and the design of its connector, manufacturing technology always by
European and American developed countries are monopolized.Such product basic source that the country uses is caused in import to the development of China Petroleum
Very big obstacle.
Invention content
The purpose of this utility model is that solve the deficiencies in the prior art, and offer pierces formula well casing screw thread and connects
Head.
The new technical solution of the utility model is：Formula well casing nipple is pierced, including female connector, pin end is close
Seal, anti-rotation device, ridge, raised shoulder, seal groove and anti-rotation device slot, pin end and female connector are certain using having
The pipe screw thread of taper, thread taper 1:2~1:10；Connector outer diameter has protrusion, and outer diameter is more than tube body, the protrusion of female connector
Shoulder coordinates with elevator；Joint screw thread tooth uses nonstandard saw-tooth thread tooth, and loading end and the connector longitudinal axis of ridge have
Certain angle；There is seal groove, when assembling is sealed using O-ring seal on female connector；Pin end is equipped with anti-rotation device
Slot, anti-rotation device are installed in anti-rotation device slot；Pin and box sub open end, which is both provided with, draws button slope.
The thread taper is usually 1:4.
The loading end of the ridge has angle with connector longitudinal axis, and non-bearing face is with connector longitudinal axis angle
45 °, after connector cooperation, ridge loading end is closely together in negative angle.
Radial direction shoulder, radial end face and axial metal covering are interference fitted respectively after the pin and box sub assembling cooperation.
The anti-rotation device anti-turn.
The pin and box sub open end, which is provided with, draws button slope, and connector is provided with a plurality of threaded line, generally both ends
Screw thread or four head threads.
Pipe line steel such as X52, the X56 and other materials of the drilling conductor tube body generally use by rolling, connector lead to
It is 20MnV, 30CrMo frequently with material（That is American Standard 4130）, 20Mn2 and other material forging, forging generally will be through overheat at
Reason.
The connector outer diameter diameter range is Φ 500mm~Φ 960mm, with the common size Φ in pipe welding end
508mm、Φ559mm、Φ610mm、Φ660mm、Φ762mm、Φ914mm。
The joint screw thread tooth uses nonstandard saw-tooth thread tooth, and loading end and the connector longitudinal axis of ridge have one
Fixed angle, angular range is -7 °~7 ° non-bearing faces and connector longitudinal axis angle is 45 °.At present application be at most-
3°/45°。
The joint screw thread tooth form screw pitch is 3 teeth/inch, and tooth form tooth high scope is 3mm~6mm.
The female connector is designed with seal groove, and sealing channel opening is designed with the oblique angle for preventing sealing ring from coming off, inclined-plane with
Longitudinal axis angle is 0 °~25 °, usually selects 15 ° of angles.
The sealing ring is O-ring seal, and material is nitrile rubber, hydrogenated nitrile-butadiene rubber, fluorubber, fluosilicic rubber
Deng.
Anti-rotation device slot is provided with anti-rotation device on the pin end, and connector outer diameter size is provided with 1~4
Anti-rotation device, anti-rotation device have common embedded and embedded two kinds of ratchet.
The joint screw thread starting position is not designed into cutter groove, and run-out(of thread) is designed with escape.
The beneficial effects of the utility model are：The utility model connector outer diameter has protrusion, goes into the well and lifts convenient and efficient, connector
Intensity high bearing capacity is strong, and product hermeticity is good；Connector is designed with anti-rotation device, safe with anti-rotation；Connector
Make-up speed is fast, has a wide range of application.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the structure diagram of female connector.
Fig. 3 is the structure diagram of pin end.
Fig. 4 is ridge cooperation figure.
Fig. 5 is the structure diagram of seal groove.
Fig. 6 is the structure diagram for drawing button slope.
Fig. 7 be Fig. 3 in A to partial view.
Fig. 8 is the structure diagram of anti-rotation device.
Wherein：1 it is tube body, 2 be female connector, 3 be pin end, 4 be sealing ring, 5 be anti-rotation device, 6 be ridge, 7 is
Raised shoulder, 8 be seal groove, 9 be radial direction shoulder, 10 be axial direction metal covering at shoulder, 11 be radial end face, 12 oblique to draw button
Slope, 13 be endface axial direction metal covering, 14 be anti-rotation device slot, 15 be pipe screw thread.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
Formula well casing nipple is pierced, including female connector 2, pin end 3, sealing ring 4, anti-rotation device 5, ridge 6,
Raised shoulder 7, seal groove 8 and anti-rotation device slot 14, pin end 3 and female connector 2 use the pipe screw thread 15 with certain taper,
Thread taper is 1:2~1:10；Connector outer diameter has protrusion, and outer diameter is more than tube body 1, the raised shoulder 7 and elevator of female connector 2
Cooperation；Joint screw thread tooth 6 uses nonstandard saw-tooth thread tooth, and loading end and the connector longitudinal axis of ridge 6 have certain folder
Angle；There is seal groove 8, when assembling is sealed using O-ring seal 4 on female connector 2；Pin end 3 is equipped with anti-rotation device slot 14,
Anti-rotation device 5 is installed in anti-rotation device slot 14；2 open end of pin and box sub, which is both provided with, draws button slope 12.
The thread taper is usually 1:4.
The loading end of the ridge 6 has angle, non-bearing face and connector longitudinal axis angle with connector longitudinal axis
It it is 45 °, after connector cooperation, ridge loading end is closely together in negative angle.
Radial direction shoulder 9 after the described assembling of pin and box sub 2 cooperation, radial end face 11, axial direction metal covering 10 and end at shoulder
Axial direction metal covering 13 is interference fitted respectively at face.
5 anti-turn of anti-rotation device.
The pin and box sub open end, which is provided with, draws button slope 12, and connector is provided with a plurality of threaded line, generally two
Head thread or four head threads.
Pipe line steel such as X52, the X56 and other materials of 1 generally use of drilling conductor tube body by rolling, connector lead to
It is 20MnV, 30CrMo frequently with material（That is American Standard 4130）, 20Mn2 and other material forging, forging generally will be through overheat at
Reason.
The connector outer diameter diameter range is Φ 500mm~Φ 960mm, and the common size Φ in end is welded with tube body 1
508mm、Φ559mm、Φ610mm、Φ660mm、Φ762mm、Φ914mm。
The joint screw thread tooth 6 uses nonstandard saw-tooth thread tooth, and loading end and the connector longitudinal axis of ridge 6 have
Certain angle, angular range is -7 °~7 ° non-bearing faces and connector longitudinal axis angle is 45 °.At present application be at most-
3°/45°。
The joint screw thread tooth form screw pitch is 3 teeth/inch, and tooth form tooth high scope is 3mm~6mm.
The female connector 2 is designed with seal groove 8, and the opening of seal groove 8 is designed with the oblique angle for preventing sealing ring 4 from coming off, tiltedly
Face and longitudinal axis angle are 0 °~25 °, usually select 15 ° of angles.
The sealing ring 4 is O-ring seal, and material is nitrile rubber, hydrogenated nitrile-butadiene rubber, fluorubber, fluosilicic rubber
Deng.
Anti-rotation device slot 14 is provided with anti-rotation device 5 on the pin end 3, and connector outer diameter size is provided with 1
~4 anti-rotation devices 5, anti-rotation device 5 have common embedded and embedded two kinds of ratchet.
The joint screw thread starting position is not designed into cutter groove, and run-out(of thread) is designed with escape.
Claims (14)
1. formula well casing nipple is pierced, including female connector（2）, pin end（3）, sealing ring（4）, anti-rotation device（5）, spiral shell
Line tooth（6）, raised shoulder（7）, seal groove（8）With anti-rotation device slot（14）, it is characterised in that：Pin end（3）And female connector（2）
Using the pipe screw thread with certain taper（15）, thread taper 1:2~1:10；Connector outer diameter has protrusion, and outer diameter is big
In tube body（1）, female connector（2）Raised shoulder（7）Coordinate with elevator；Joint screw thread tooth（6）Using nonstandard saw-tooth thread tooth,
Ridge（6）Loading end and connector longitudinal axis have certain angle；Female connector（2）It is upper that there is seal groove（8）, when assembling adopts
Use O-ring seal（4）It is sealed；Pin end（3）Equipped with anti-rotation device slot（14）, anti-rotation device（5）It is installed on anti-rotation device
Slot（14）It is interior；Pin and box sub（2）Open end, which is both provided with, draws button slope（12）.
2. according to claim 1 pierce formula well casing nipple, it is characterised in that：The thread taper is 1:
4。
3. according to claim 1 pierce formula well casing nipple, it is characterised in that：The ridge（6）'s
Loading end has angle with connector longitudinal axis, and non-bearing face and connector longitudinal axis angle are 45 °, after connector cooperation, ridge
Loading end is closely together in negative angle.
4. according to claim 1 pierce formula well casing nipple, it is characterised in that：The pin and box sub（2）
Radial direction shoulder after assembling cooperation（9）, radial end face（11）, axial direction metal covering at shoulder（10）With endface axial direction metal covering（13）
It is interference fitted respectively.
5. according to claim 1 pierce formula well casing nipple, it is characterised in that：The anti-rotation device（5）
Anti-turn.
6. according to claim 1 pierce formula well casing nipple, it is characterised in that：The pin and box sub opening
End set, which has, draws button slope（12）, connector is provided with a plurality of threaded line.
7. according to claim 1 pierce formula well casing nipple, it is characterised in that：The tube body（1）Using
By the pipe line steel of rolling, connector material is 20MnV, 30CrMo（That is American Standard 4130）, 20Mn2, forging will be through Overheating Treatment.
8. according to claim 1 pierce formula well casing nipple, it is characterised in that：The connector outer diameter diameter
Ranging from Φ 500mm~Φ 960mm, with tube body（1）Weld the common size Φ 508mm in end, Φ 559mm, Φ 610mm, Φ
660mm、Φ762mm、Φ914mm。
9. according to claim 1 pierce formula well casing nipple, it is characterised in that：The joint screw thread tooth
（6）Using nonstandard saw-tooth thread tooth, ridge（6）Loading end and connector longitudinal axis have certain angle, angular range
It it is -7 °~7 °, non-bearing face and connector longitudinal axis angle are 45 °.
10. according to claim 1 pierce formula well casing nipple, it is characterised in that：The joint screw thread tooth
Type screw pitch is 3 teeth/inch, and tooth form tooth high scope is 3mm~6mm.
11. it connects and according to claim 1 pierces formula well casing nipple, it is characterised in that：The female connector（2）
It is designed with seal groove（8）, seal groove（8）Opening, which is designed with, prevents sealing ring（4）The oblique angle to come off, inclined-plane and longitudinal axis angle
It is 0 °~25 °.
12. according to claim 1 pierce formula well casing nipple, it is characterised in that：The sealing ring（4）For
O-ring seal, material is nitrile rubber, hydrogenated nitrile-butadiene rubber, fluorubber, fluosilicic rubber.
13. according to claim 1 pierce formula well casing nipple, it is characterised in that：The pin end（3）On
Anti-rotation device slot（14）It is provided with anti-rotation device（5）, 1~4 anti-rotation devices are provided with according to connector outer diameter size（5）, prevent
Rotary device（5）There is common embedded and embedded two kinds of ratchet.
14. according to claim 1 pierce formula well casing nipple, it is characterised in that：The joint screw thread rises
Beginning position is not designed into cutter groove, and run-out(of thread) is designed with escape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357647.5U CN207538792U (en) | 2017-10-20 | 2017-10-20 | Pierce formula well casing nipple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357647.5U CN207538792U (en) | 2017-10-20 | 2017-10-20 | Pierce formula well casing nipple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207538792U true CN207538792U (en) | 2018-06-26 |
Family
ID=62610615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721357647.5U Active CN207538792U (en) | 2017-10-20 | 2017-10-20 | Pierce formula well casing nipple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207538792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630667A (en) * | 2017-10-20 | 2018-01-26 | 山东祺龙海洋石油钢管股份有限公司 | Pierce formula well casing nipple |
-
2017
- 2017-10-20 CN CN201721357647.5U patent/CN207538792U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630667A (en) * | 2017-10-20 | 2018-01-26 | 山东祺龙海洋石油钢管股份有限公司 | Pierce formula well casing nipple |
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