CN203796189U - Opening repairing joint for ceramic composite material of liner of oil casing - Google Patents
Opening repairing joint for ceramic composite material of liner of oil casing Download PDFInfo
- Publication number
- CN203796189U CN203796189U CN201420213121.XU CN201420213121U CN203796189U CN 203796189 U CN203796189 U CN 203796189U CN 201420213121 U CN201420213121 U CN 201420213121U CN 203796189 U CN203796189 U CN 203796189U
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- CN
- China
- Prior art keywords
- tubing
- composite material
- box cupling
- tubing string
- external screw
- 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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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model discloses an opening repairing joint for a ceramic composite material of a linear of an oil casing. The opening repairing joint comprises a first tubular column, a second tubular column and a coupling, wherein the coupling is in the shape of a hollow barrel; the right end of the first tubular column is connected with the left of the coupling; the left end of the second tubular column is connected with the right of the coupling; and a sealing ring is tightly adhered to a portion, which is positioned between the first tubular column and the second tubular column, of the inner side wall of the coupling. The opening repairing joint for the ceramic composite material of the liner of the oil casing is simple and reasonable in structure, and is used safely and conveniently; and a high sealing effect can be achieved.
Description
Technical field
The utility model relates to a kind of mending orifice joint, espespecially a kind of mending orifice joint of tubing and casing lined ceramics composite material.
Background technology
At sea with oil field, land oil development process in, there are a lot of producing wells and water injection well, impact due to corrosive medium, tubing and casing tubing string is reduced application life, by liner composite ceramic material technology, solved the etching problem of tubing and casing body, but conventional repaired mouth mode is difficult to solve the etching problem of two tubing and casing junctions.
Utility model content
The purpose of this utility model is to provide a kind of mending orifice joint of tubing and casing lined ceramics composite material, and it is simple and reasonable for structure, safe and convenient to use, can reach good sealing effectiveness.
To achieve these goals, technical solution of the present utility model is: a kind of mending orifice joint of tubing and casing lined ceramics composite material, comprise first and second tubing string and box cupling, wherein said box cupling is the tubular of a hollow, the right-hand member of described the first tubing string is connected with the left part of box cupling, the left end of described the second tubing string is connected with the right part of box cupling, and the position of the inside wall of described box cupling between first and second tubing string is closely fitted with joint ring.
The mending orifice joint of the utility model tubing and casing lined ceramics composite material, the external surface right-hand member of wherein said the first tubing string is provided with the first external screw thread, the external surface left end of described the second tubing string is provided with the second external screw thread, the left and right portion of internal chamber wall of described box cupling is respectively arranged with first and second internal thread, described the first external screw thread and the first internal thread are spirally connected, and described the second external screw thread and the second internal thread are spirally connected.
The mending orifice joint of the utility model tubing and casing lined ceramics composite material, the right-hand member of wherein said the first tubing string is the taper of convergent to the right, the left end of described the second tubing string is the taper of convergent left, the inner chamber left part of described box cupling is the taper of convergent to the right, and the inner chamber right part of described box cupling is the taper of convergent left.
The mending orifice joint of the utility model tubing and casing lined ceramics composite material, wherein said the first external screw thread adopts API standard thread form to be connected with the first internal thread, and described the second external screw thread adopts API standard thread form to be connected with the second internal thread.
The mending orifice joint of the utility model tubing and casing lined ceramics composite material, wherein said taper surface is less than 3 degree with the angle of the first column jecket external surface or the second column jecket external surface for being greater than 0 degree.
The mending orifice joint of the utility model tubing and casing lined ceramics composite material, wherein said joint ring is by metal ring as matrix, and the external surface of described metal ring is coated with corrosion resistant rubber layer or polytetrafluoroethylene floor.
Adopt after such scheme, the mending orifice joint of the utility model tubing and casing lined ceramics composite material passes through first, two tubular pipe connection head end external surface processing first, two external screw threads, internal chamber wall at box cupling is left, right part processing first, two internal threads, make between the first external screw thread and the first internal thread, between the second external screw thread and the second internal thread, adopt respectively API standard thread form to reach the bonding strength of standard, and do not change oil field operation mode, during installation, first connect the first external screw thread and the first internal thread, reinstall joint ring, finally connect again the second external screw thread and the second internal thread, by the second external screw thread and the second internal thread crush seal ring, reach sealing effectiveness, this mending orifice joint is simple in structure, rationally, safe and convenient to use, can reach good sealing effectiveness.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mending orifice joint of the utility model tubing and casing lined ceramics composite material.
Below in conjunction with accompanying drawing, by embodiment, the utility model is described further;
The specific embodiment
As shown in Figure 1, the mending orifice joint of the utility model tubing and casing lined ceramics composite material, comprises the first tubing string 1, the second tubing string 2 and box cupling 3.The right-hand member of the first tubing string 1 is the taper of convergent to the right, and the external surface angle of itself and the first tubing string 1 is less than 3 degree for being greater than 0 degree, and this embodiment is preferably 2.5 degree.This end outer surface is provided with the first external screw thread 4.The left end of the second tubing string 2 is the taper of convergent left, and the external surface angle of itself and the second tubing string 2 is less than 3 degree for being greater than 0 degree, and this embodiment is preferably 2.5 degree.This end outer surface is provided with the second external screw thread 5.Box cupling 3 is the tubular of a hollow.The inner chamber left part of box cupling 3 is the taper of convergent to the right.This taper Surface Machining has the first internal thread 6, and the inner chamber right part of box cupling 3 is the taper of convergent left, and this taper Surface Machining has the second internal thread 7.The right-hand member of the first tubing string 1 is spirally connected by the first external screw thread 4 and the first internal thread 6 of box cupling 3, and the first external screw thread 4 and the first internal thread 6 adopt API standard thread form to reach standard bonding strength.The left end of the second tubing string 2 is connected with the second internal thread 7 of box cupling 3 by the second external screw thread 5, and the second external screw thread 5 and the second internal thread 7 adopt API standard thread form to reach standard bonding strength.The position of the inside wall of box cupling 3 between the first tubing string 1, the second tubing string 2 is closely fitted with joint ring 8.Sealing ring 8 as matrix, is coated with corrosion resistant rubber layer or polytetrafluoroethylene floor at the external surface of metal ring by metal ring.
During installation, first the first external screw thread 4 and the first internal thread 6 are spirally connected fixing, reinstall joint ring 8, finally again the second external screw thread 5 and the second internal thread 7 are spirally connected fixing, by the second external screw thread 5 and the second internal thread 7 crush seal rings 8, reach sealing effectiveness, this mending orifice joint is simple and reasonable for structure, safe and convenient to use, can reach good sealing effectiveness.
The above embodiment is described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model, all should fall in the definite protection domain of claims of the present utility model.
Claims (6)
1. the mending orifice joint of a tubing and casing lined ceramics composite material, comprise first and second tubing string and box cupling, it is characterized in that: described box cupling is the tubular of a hollow, the right-hand member of described the first tubing string is connected with the left part of box cupling, the left end of described the second tubing string is connected with the right part of box cupling, and the position of the inside wall of described box cupling between first and second tubing string is closely fitted with joint ring.
2. the mending orifice joint of tubing and casing lined ceramics composite material as claimed in claim 1, it is characterized in that: the external surface right-hand member of described the first tubing string is provided with the first external screw thread, the external surface left end of described the second tubing string is provided with the second external screw thread, the left and right portion of internal chamber wall of described box cupling is respectively arranged with first and second internal thread, described the first external screw thread and the first internal thread are spirally connected, and described the second external screw thread and the second internal thread are spirally connected.
3. the mending orifice joint of tubing and casing lined ceramics composite material as claimed in claim 2, it is characterized in that: the right-hand member of described the first tubing string is the taper of convergent to the right, the left end of described the second tubing string is the taper of convergent left, the inner chamber left part of described box cupling is the taper of convergent to the right, and the inner chamber right part of described box cupling is the taper of convergent left.
4. the mending orifice joint of tubing and casing lined ceramics composite material as claimed in claim 3, it is characterized in that: described the first external screw thread adopts API standard thread form to be connected with the first internal thread, described the second external screw thread adopts API standard thread form to be connected with the second internal thread.
5. the mending orifice joint of tubing and casing lined ceramics composite material as claimed in claim 3, is characterized in that: described taper surface is less than 3 degree with the angle of the first column jecket external surface or the second column jecket external surface for being greater than 0 degree.
6. the mending orifice joint of tubing and casing lined ceramics composite material as claimed in claim 1, is characterized in that: described joint ring is by metal ring as matrix, and the external surface of described metal ring is coated with corrosion resistant rubber layer or polytetrafluoroethylene floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213121.XU CN203796189U (en) | 2014-04-29 | 2014-04-29 | Opening repairing joint for ceramic composite material of liner of oil casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213121.XU CN203796189U (en) | 2014-04-29 | 2014-04-29 | Opening repairing joint for ceramic composite material of liner of oil casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796189U true CN203796189U (en) | 2014-08-27 |
Family
ID=51378410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420213121.XU Expired - Fee Related CN203796189U (en) | 2014-04-29 | 2014-04-29 | Opening repairing joint for ceramic composite material of liner of oil casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781549A (en) * | 2017-11-21 | 2018-03-09 | 航天材料及工艺研究所 | A kind of hollow metal sealing structure |
-
2014
- 2014-04-29 CN CN201420213121.XU patent/CN203796189U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781549A (en) * | 2017-11-21 | 2018-03-09 | 航天材料及工艺研究所 | A kind of hollow metal sealing structure |
| CN107781549B (en) * | 2017-11-21 | 2019-09-06 | 航天材料及工艺研究所 | A kind of hollow metal sealing 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: 20140827 |
|
| 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: 20140827 |