CN202215164U - Novel petroleum surface casing - Google Patents
Novel petroleum surface casing Download PDFInfo
- Publication number
- CN202215164U CN202215164U CN2011202296168U CN201120229616U CN202215164U CN 202215164 U CN202215164 U CN 202215164U CN 2011202296168 U CN2011202296168 U CN 2011202296168U CN 201120229616 U CN201120229616 U CN 201120229616U CN 202215164 U CN202215164 U CN 202215164U
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- CN
- China
- Prior art keywords
- box cupling
- pipe
- sleeve
- steel
- teeth groove
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- 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 provides a novel petroleum surface casing, which belongs to the technological field of petroleum natural-gas exploitation well casings and aims to solve the problem that existing petroleum surface casings are complex in structure and large in whole weight. A petroleum surface main plastic casing is formed by connecting a plurality of plastic pipes via fused sleeves. The top of the uppermost plastic pipe of the petroleum surface main plastic casing is connected with a steel-plastic coupling, on which a steel pipe joint is connected. The novel petroleum surface casing of the utility model has a simple and practical structure and is suitable for oil and gas wells in the petroleum and natural gas industries.
Description
Technical field
The utility model belongs to the oil and gas exploitation well with a kind of oil gas well surface pipe in the sleeve technology field.
Background technology
The oil surface pipe is the fixing crucial equipment of the borehole wall or wellhole, protection drilling well in the oil and gas exploitation.Along with the continuous progress of oil and gas exploitation growing and oil recovery apparatus already, also increasingly high with the technical requirements of sleeve pipe to the oil and gas exploitation well.In known technology, existing oil surface pipe mainly is to adopt seamless steel pipe to connect to form oil surface pipe main body by screw thread, pipe collar and union, but limit by its structure; Its structure is complicated; Manufacturing cost is high, and overall weight is big, also brings inconvenience to use.
Summary of the invention
In order to overcome the deficiency of prior art, it is complicated to solve existing oil surface pipe structure, the problem that overall weight is big.The purpose of the utility model provides a kind of simple and practical, low cost of manufacture, and overall weight is light, and is corrosion-resistant, the new-type oil surface pipe that can recycle.
The utility model addresses the above problem the technical scheme that is adopted:
A kind of nonpetroleum surface pipe; It is provided with: oil surface main body plastic bushing, steel are moulded box cupling, coupling; Oil surface main body plastic bushing is that several plastic pipes are connected by the electric smelting sleeve and form; Oil surface main body plastic bushing on the top of joint plastic pipe be fitted with steel and mould box cupling, steel is moulded and is connected coupling (or steel pipe) on the box cupling.
Above-mentioned nonpetroleum surface pipe; Said steel is moulded box cupling and is comprised: box cupling sleeve, support tube coupling; Be shaped on tapering in the one end sleeve of box cupling sleeve and be in the internal thread, other end sleeve of 1: 8～16 connection coupling or steel pipe and be shaped on the recessed teeth groove that connects plastic pipe, and edge is connected with the support tube coupling in embedding is connected in the plastics mouth of pipe of the recessed teeth groove of box cupling sleeve.
Above-mentioned nonpetroleum surface pipe, the recessed teeth groove of said box cupling sleeve are that conical recessed teeth groove and cylindrical recessed teeth groove connect to form, or conical recessed teeth groove, the circle recessed teeth groove of bowl-type and cylindrical recessed teeth groove connect to form, and the recessed teeth groove of other suitable type.
Above-mentioned nonpetroleum surface pipe, said support tube coupling are the pipe intumescent support tube coupling that a tubular type support tube coupling or a port part of tube coupling are shaped on dilatation joint.
Above-mentioned nonpetroleum surface pipe, said plastic pipe are vinyl tube or modified polyethylene plastic pipe or steel wire mesh frame vinyon clad pipe.
When the utility model uses; The same with existing oil surface pipe; By designing requirement, can on-the-spot plastic pipe be connected into oil surface main body plastic bushing with electric smelting sleeve hot melt, save the good steel of top load of plastic pipe at oil surface main body plastic bushing on and mould box cupling; Steel is moulded and is connected coupling or steel pipe on the box cupling, and slotting company is fixed in the oil gas wellhole.
Because technique scheme has been adopted in the utility model design, it is complicated to have solved existing oil surface pipe structure effectively, the problem that overall weight is big.Also show through the test result on trial, it compared with prior art, have simple and practical, low cost of manufacture, advantage such as overall weight is light, and is corrosion-resistant, can recycle, easy to use is suitable for the used oil surface pipe of industrial gas oil oil gas well.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Fig. 1 is the structure diagram of the utility model embodiment.
Fig. 2 is that A partly is the amplification view that steel is moulded box cupling among Fig. 1.
Fig. 3 is the half section enlarged drawing of box cupling sleeve among Fig. 1.
Fig. 4 is the amplification view that the pipe intumescent supports tube coupling embodiment in the utility model.
Each label is in the accompanying drawing: 1 vinyl tube; 2 electric smelting sleeves; 3 box cupling sleeves; 4 support tube coupling; 5 couplings; The internal thread of 6 box cupling sleeves; The recessed teeth groove of 7 box cupling sleeves; 8 support the dilatation joint of tube coupling.
The specific embodiment
Like accompanying drawing 1-2 illustrated embodiment; The utility model is provided with: oil surface main body plastic bushing, steel are moulded box cupling, coupling 5; Oil surface main body plastic bushing is that vinyl tube 1 that 16 external diameters are 244.48mm, long 12m is connected by electric smelting sleeve 2 and forms; Oil surface main body plastic bushing on the top of joint plastic pipe be fitted with steel and mould box cupling; Steel is moulded and is connected coupling 5 on the box cupling; Steel is moulded box cupling and is comprised box cupling sleeve 3 and support tube coupling 4, be shaped on tapering in the upper end sleeve of box cupling sleeve 3 and be in the internal thread 6 that connects coupling 5 at 1: 16, the lower sleeve to be shaped on the recessed teeth groove 7 (also seeing accompanying drawing 3) that connects plastic pipe, and edge is connected with tubular type and supports tube coupling 4 in embedding is connected in the plastics mouth of pipe of the recessed teeth groove 7 of box cupling sleeve.
Referring to accompanying drawing 3 embodiment, the recessed teeth groove 7 of the utility model box cupling sleeve 3 is that conical recessed teeth groove and cylindrical recessed teeth groove connect to form.
With reference to accompanying drawing 4 embodiment, the support tube coupling 4 of the utility model supports tube coupling for a port part of tube coupling is shaped on 6 pipe intumescents that are uniformly distributed with dilatation joint 8.
Claims (4)
1. nonpetroleum surface pipe; It is provided with coupling; It is characterized in that, also be provided with oil surface main body plastic bushing, steel is moulded box cupling, oil surface main body plastic bushing is that several plastic pipes (1) are connected by electric smelting sleeve (2) and form; Oil surface main body plastic bushing on the top of joint plastic pipe be fitted with steel and mould box cupling, steel is moulded and is connected coupling on the box cupling.
2. nonpetroleum surface pipe according to claim 1; It is characterized in that; Steel is moulded box cupling and is comprised box cupling sleeve (3), supports tube coupling (4); Be shaped on tapering in the one end sleeve of box cupling sleeve (3) and be in the internal thread (6), other end sleeve of 1: 8～16 connection coupling and be shaped on the recessed teeth groove (7) that connects plastic pipe, and edge is connected with support tube coupling (4) in embedding is connected in the plastics mouth of pipe of the recessed teeth groove of box cupling sleeve (7).
3. nonpetroleum surface pipe according to claim 2 is characterized in that, the recessed teeth groove (7) of box cupling sleeve (3) is that conical recessed teeth groove and cylindrical recessed teeth groove connect to form.
4. nonpetroleum surface pipe according to claim 2 is characterized in that, supports tube coupling (4) and is tubular type and support pipe intumescent support tube coupling wherein a kind of that tube coupling and tube coupling one port part are shaped on dilatation joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202296168U CN202215164U (en) | 2011-07-01 | 2011-07-01 | Novel petroleum surface casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202296168U CN202215164U (en) | 2011-07-01 | 2011-07-01 | Novel petroleum surface casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215164U true CN202215164U (en) | 2012-05-09 |
Family
ID=46014424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202296168U Expired - Fee Related CN202215164U (en) | 2011-07-01 | 2011-07-01 | Novel petroleum surface casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215164U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840112A (en) * | 2016-03-24 | 2016-08-10 | 中国石油天然气股份有限公司 | surface casing cementing assembly |
| CN105909181A (en) * | 2016-05-17 | 2016-08-31 | 太原理工大学 | Well cementing ripple casing device for exploitation of petroleum gas through heat injection |
-
2011
- 2011-07-01 CN CN2011202296168U patent/CN202215164U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840112A (en) * | 2016-03-24 | 2016-08-10 | 中国石油天然气股份有限公司 | surface casing cementing assembly |
| CN105909181A (en) * | 2016-05-17 | 2016-08-31 | 太原理工大学 | Well cementing ripple casing device for exploitation of petroleum gas through heat injection |
| CN105909181B (en) * | 2016-05-17 | 2018-04-06 | 太原理工大学 | A kind of heat injection exploitation oil gas well cementation corrugated bushing device |
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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 |
Granted publication date: 20120509 Termination date: 20140701 |
|
| EXPY | Termination of patent right or utility model |