CN208122775U - A kind of anti-rotational safety joint of band thermal compensation - Google Patents
A kind of anti-rotational safety joint of band thermal compensation Download PDFInfo
- Publication number
- CN208122775U CN208122775U CN201820353284.6U CN201820353284U CN208122775U CN 208122775 U CN208122775 U CN 208122775U CN 201820353284 U CN201820353284 U CN 201820353284U CN 208122775 U CN208122775 U CN 208122775U
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- tube
- center tube
- sealing shroud
- upper center
- thermal compensation
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Abstract
The utility model discloses a kind of anti-rotational safety joints of band thermal compensation, including outer tube, central tube；It further include sealing shroud, baffle ring, connector sleeve, the central tube includes upper center tube and lower center tube, wherein upper center tube is inserted into outer tube, and annular space is formed between outer tube and upper center tube, outer tube upper end screw thread type connects sealing shroud, the sealing shroud connects upper center tube by the first shear pin, the upper center tube lower end outer wall screw thread type connects baffle ring, the sealing shroud lower end surface and baffle ring upper surface open up corresponding square shaped teeth simultaneously, the connection set upper side screw thread type connects outer tube, and lower end connects lower center tube by the second shear pin.The utility model solves the problems, such as that thermal production well operating tool string installation procedure is complicated, safety is not high.
Description
Technical field
The utility model relates to sand control, steam injection string supporting tool, specifically a kind of anti-rotation of band thermal compensation
Turn safety joint.
Background technique
Common safety joint has shear pin formula and two kinds of back-buckling type in down-hole string at present.Shear pin formula safety joint structure letter
List, shearing force are controllable, but in horizontal well and the biggish well of hole deviation, the rotation generated during lower operating tool string is made sometimes
It damages at safety joint pin in running string and even disconnects on the way, increase construction risk.Back-buckling type safety joint is in level
When in well and the biggish well of hole deviation, due to wellbore trajectory, when salvaging rotating forward, if safety joint rotates, torque can not be handed on,
Also it cannot play a role.Meanwhile the two kinds of safety joints applied at present, it all cannot achieve the effect of thermal compensation, thermal production well
It when construction, needs additionally to increase thermal compensator on tubing string, increases the complexity and construction cost of process of going into the well.
Utility model content
The purpose of this utility model is to provide a kind of anti-rotational safety joints of band thermal compensation, to solve thermal recovery well construction pipe
The problem that column installation procedure is complicated, safety is not high.
In order to achieve the above objectives, the utility model uses following technical solution, a kind of anti-rotational safety of band thermal compensation
Connector, including outer tube, central tube；It further include sealing shroud, baffle ring, connector sleeve, the central tube includes upper center tube and lower center
Pipe, wherein upper center tube is inserted into outer tube, and annular space is formed between outer tube and upper center tube, and outer tube upper end screw thread type connects
Sealing shroud is connect, the sealing shroud connects upper center tube, the upper center tube lower end outer wall screw thread type connection gear by the first shear pin
Ring, the sealing shroud lower end surface and baffle ring upper surface open up corresponding square shaped teeth simultaneously, and the connection set upper side screw thread type connects
Outer tube is connect, lower end connects lower center tube by the second shear pin.
The connector sleeve lower end surface and lower center tube outer wall also open up the square shaped teeth of corresponding engagement simultaneously.
The sealing shroud inner wall opens up seal groove, installs the first O-ring in seal groove, the first O-ring is sealed in sealing shroud
Between inner wall and upper center tube outer wall.
Second O-ring is installed, and the second O-ring is close in the upper of the second shear pin between the connector sleeve and lower center tube
Side.
The baffle ring lower end surface forms axial limiting relative to connector sleeve upper surface.
The upper center tube upper end connects top connection, and the lower center tube lower end connects lower contact.
The utility model has the advantages that compared with prior art：
1, it aiming at the problem that convention security connector is without thermal compensation function, is matched using outer tube and central tube, increases safety
The thermal compensation function of connector.Meanwhile increasing rectangular toothing in thermal compensation structure, prevent thermal compensation during going into the well and salvaging
Structure rotation.
2, increase safety joint by rotation preventing function by increasing square shaped teeth, prevent safety joint from rotating when salvaging
Cause torque that can not transmit.Meanwhile O-ring is set in shear pin position, buffer function is played, shear pin is avoided to be cut by pause and transition in rhythm or melody power.
Detailed description of the invention
Fig. 1 is a kind of anti-rotational safety joint structural schematic diagram of band thermal compensation of the utility model.
In figure：Top connection 1, upper center tube 2, the first shear pin 3, sealing shroud 4, the first O-ring 5, outer tube 6, baffle ring 7, connection
Cover 8, lower center tube 9, the second O-ring 10, the second shear pin 11, lower contact 12.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of anti-rotational safety joint of band thermal compensation, including
Outer tube 6, central tube；It further include sealing shroud 4, baffle ring 7, connector sleeve 8, the central tube includes upper center tube 2 and lower center tube 9,
Wherein upper center tube is inserted into outer tube, and annular space is formed between outer tube and upper center tube, the connection of outer tube upper end screw thread type
Sealing shroud 4, the sealing shroud connect upper center tube 2, the upper center tube lower end outer wall screw thread type connection gear by the first shear pin 3
Ring 7, the sealing shroud lower end surface and baffle ring upper surface open up corresponding square shaped teeth, the 8 upper end screw thread type of connector sleeve simultaneously
Outer tube is connected, lower end connects lower center tube 9 by the second shear pin 11.The connector sleeve lower end surface and lower center tube outer wall are also simultaneously
Open up the square shaped teeth of corresponding engagement.The upper center tube upper end connects top connection 1, and the lower center tube lower end connects lower contact
12.The sealing shroud inner wall opens up seal groove, installs the first O-ring 5 in seal groove, the first O-ring is sealed in sealing shroud inner wall
Between upper center tube outer wall.Second O-ring 10 is installed, and the second O-ring is close between the connector sleeve and lower center tube
The top of second shear pin.The baffle ring lower end surface forms axial limiting relative to connector sleeve upper surface.
The upper end of top connection 1 is connected with sand control pipe or closed steam injection string, and lower end and 2 threaded upper ends of upper center tube connect
It connects, for the outside of upper center tube 2 with sealing shroud 4 by the fixation of the first shear pin 3, the first O-ring 5 plays sealing function, under upper center tube 2
End is threadedly coupled with baffle ring 7.Sealing shroud 4 is threadedly coupled with 6 top of outer tube.4 lower end of sealing shroud and 7 upper end of baffle ring are distributed four respectively
A square shaped teeth, when tool is gone into the well and salvaged, the first shear pin 3 is disconnected, and top connection 1, upper center tube 2, baffle ring 7 are on outer tube
It moves, the square shaped teeth of 4 lower end of sealing shroud and the square shaped teeth of 7 upper end of baffle ring mesh together, and play the role of preventing tool from rotating.Outside
6 lower end of pipe is threadedly coupled with connector sleeve 8, and connector sleeve 8 and lower center tube 9 are fixed by the second shear pin 11, when tubing string needs to disengage
When, the second shear pin 11 disconnects, and connector sleeve 8 is separated with lower center tube 9, guarantees downhole safety.The second of second shear pin, 11 top is O-shaped
Circle 10 plays buffer function, prevents the second shear pin 11 from being cut by the pause and transition in rhythm or melody power of tubing string.Outside 8 lower end of connector sleeve and lower center tube 9
By rectangular tooth engagement, play the role of preventing tool from rotating.Lower center tube 9 is connected through a screw thread with lower contact 12.
It is matched using outer tube and central tube, increases the thermal compensation function of safety joint.Meanwhile increasing in thermal compensation structure
Add rectangular toothing, prevents thermal compensation structure during going into the well and salvaging from rotating.
Increase safety joint by rotation preventing function by increasing square shaped teeth, prevents safety joint from rotating when salvaging and lead
Cause torque that can not transmit.Meanwhile O-ring is set in shear pin position, buffer function is played, shear pin is avoided to be cut by pause and transition in rhythm or melody power.
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of anti-rotational safety joint of band thermal compensation, including outer tube, central tube；It is characterized in that, further including sealing shroud, gear
Ring, connector sleeve, the central tube include upper center tube and lower center tube, and wherein upper center tube is inserted into outer tube, and outer tube and
Annular space is formed between upper center tube, outer tube upper end screw thread type connects sealing shroud, and the sealing shroud is connected by the first shear pin
Upper center tube, the upper center tube lower end outer wall screw thread type connect baffle ring, and the sealing shroud lower end surface and baffle ring upper surface are simultaneously
Corresponding square shaped teeth is opened up, the connection set upper side screw thread type connects outer tube, and lower end connects lower center tube by the second shear pin.
2. a kind of anti-rotational safety joint of band thermal compensation according to claim 1, which is characterized in that the connector sleeve lower end
Face and lower center tube outer wall also open up the square shaped teeth of corresponding engagement simultaneously.
3. a kind of anti-rotational safety joint of band thermal compensation according to claim 1 or 2, which is characterized in that the sealing shroud
Inner wall opens up seal groove, installs the first O-ring in seal groove, the first O-ring is sealed in sealing shroud inner wall and upper center tube outer wall
Between.
4. a kind of anti-rotational safety joint of band thermal compensation according to claim 1 or 2, which is characterized in that the connector sleeve
Second O-ring is installed between lower center tube, and the second O-ring is close in the top of the second shear pin.
5. a kind of anti-rotational safety joint of band thermal compensation according to claim 1 or 2, which is characterized in that under the baffle ring
End face forms axial limiting relative to connector sleeve upper surface.
6. a kind of anti-rotational safety joint of band thermal compensation according to claim 1 or 2, which is characterized in that the upper center
Pipe upper end connects top connection, and the lower center tube lower end connects lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820353284.6U CN208122775U (en) | 2018-03-15 | 2018-03-15 | A kind of anti-rotational safety joint of band thermal compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820353284.6U CN208122775U (en) | 2018-03-15 | 2018-03-15 | A kind of anti-rotational safety joint of band thermal compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208122775U true CN208122775U (en) | 2018-11-20 |
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ID=64198932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820353284.6U Active CN208122775U (en) | 2018-03-15 | 2018-03-15 | A kind of anti-rotational safety joint of band thermal compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208122775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779537A (en) * | 2019-01-23 | 2019-05-21 | 中国海洋石油集团有限公司 | A kind of safety joint |
| CN114109273A (en) * | 2020-08-26 | 2022-03-01 | 中国石油化工股份有限公司 | Safety device for thickened oil thermal production well |
-
2018
- 2018-03-15 CN CN201820353284.6U patent/CN208122775U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779537A (en) * | 2019-01-23 | 2019-05-21 | 中国海洋石油集团有限公司 | A kind of safety joint |
| CN114109273A (en) * | 2020-08-26 | 2022-03-01 | 中国石油化工股份有限公司 | Safety device for thickened oil thermal production well |
| CN114109273B (en) * | 2020-08-26 | 2024-04-19 | 中国石油化工股份有限公司 | Safety device for thickened oil thermal recovery well |
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