CN104514494A - Novel oil gas well pipe - Google Patents
Novel oil gas well pipe Download PDFInfo
- Publication number
- CN104514494A CN104514494A CN201310465505.0A CN201310465505A CN104514494A CN 104514494 A CN104514494 A CN 104514494A CN 201310465505 A CN201310465505 A CN 201310465505A CN 104514494 A CN104514494 A CN 104514494A
- Authority
- CN
- China
- Prior art keywords
- gas well
- oil gas
- novel oil
- conical surface
- buttress
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a novel oil gas well pipe. The novel oil gas well pipe comprises a pipe body, wherein a buttress external thread is arranged on the outer wall of one end of the pipe body, and a buttress internal thread matched with the buttress external thread is arranged at the other end of the pipe body. When two adjacent novel oil gas well pipes are connected, the buttress external thread on one oil gas well pipe is screwed into the buttress internal thread on the other novel oil gas well pipe, and then the two novel oil gas well pipes are connected together. Furthermore, one side of the outer wall of the pipe body, close to the start end of the buttress external thread, is provided with an external conical surface, one side of the inner wall of the pipe body, close to the start end of the buttress internal thread, is provided with an internal conical surface, and an slant angle between the external conical surface and the internal conical surface is 45 degrees. The novel oil gas well pipe is low in processing difficulty, high in production efficiency, and convenient to connect and high in connection strength due to the fact that the two novel oil gas well pipes can be connected only by being tightened through the buttress external thread and the buttress internal thread, respectively located on the two novel oil gas well pipes, and furthermore seal effects of the two novel oil gas well pipes after being connected together are improved due to close fit between the external conical surface and the internal conical surface, which are respectively located on the two novel oil gas well pipes, in connecting.
Description
Technical field
The present invention relates to PETROLEUM PROCESSING field, particularly relate to a kind of Novel oil gas well casing.
Background technology
Along with oil, the harshness day by day of gas well drilling environment and developing rapidly of oil-gas mining technology, length for the oil gas well casing of oilfield exploitation, oil-gas transportation is also more and more longer, usually box cupling part connected mode is adopted at present, by box cupling part, the oil gas well casing of fixed length is connected into required length, but numerous oil gas well casings is coupled together, need a lot of box cupling parts, not only take a lot of work but also take material during making, batch production efficiency is low.
Summary of the invention
The invention provides a kind of Novel oil gas well casing, easy to connect, good airproof performance, difficulty of processing are low, production efficiency is high.
Technical scheme of the present invention is: a kind of Novel oil gas well casing, it is characterized in that: comprise body, the outer wall of described body one end is provided with partially trapezoidal external screw thread, the other end is provided with the inclined trapezoidal internal thread that to match with described partially trapezoidal external screw thread, described tube wall has outer conical surface near side, partially trapezoidal external screw thread top, described inboard wall of tube body has internal conical surface near inclined trapezoidal internal thread end side.
Further, when two adjacent oil gas well casings connect, two oil gas well casings are coupled together by the partially trapezoidal inclined trapezoidal internal thread screwed on another root oil gas well casing on an oil gas well casing.
Further, the gradient of described outer conical surface and internal conical surface is 45 °.
Beneficial effect of the present invention is: difficulty of processing of the present invention is low, production efficiency is high, when two oil gas well casings connect, only need be tightened by partially trapezoidal external screw thread and inclined trapezoidal internal thread, easy to connect, bonding strength is high, during connection, outer conical surface and internal conical surface closely cooperate, and improve the sealing effectiveness after the connection of oil gas well casing.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
Wherein: 1, body, 2, partially trapezoidal external screw thread,
3, partially trapezoidal internal thread, 4, outer conical surface,
5, internal conical surface.
Detailed description of the invention
Below in conjunction with accompanying drawing, brief description is made to the specific embodiment of the present invention.
As shown in the figure: a kind of Novel oil gas well casing, it is characterized in that: comprise body 1, the outer wall of described body 1 one end is provided with partially trapezoidal external screw thread 2, the other end is provided with the inclined trapezoidal internal thread 3 that to match with described partially trapezoidal external screw thread 2, when two adjacent oil gas well casings connect, partially trapezoidal external screw thread 2 on an oil gas well casing screws in the inclined trapezoidal internal thread 3 on another root oil gas well casing, two oil gas well casings are coupled together, described body 1 outer wall has outer conical surface 4 near side, partially trapezoidal external screw thread 2 top, described body 1 inwall has internal conical surface 5 near inclined trapezoidal internal thread 3 end side, the gradient of described outer conical surface 4 and internal conical surface 5 is 45 °.
Difficulty of processing of the present invention is low, production efficiency is high, when two oil gas well casings connect, only need be tightened by partially trapezoidal external screw thread 2 and inclined trapezoidal internal thread 3, easy to connect, bonding strength is high, during connection, outer conical surface 4 and internal conical surface 5 closely cooperate, and improve the sealing effectiveness after the connection of oil gas well casing.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (3)
1. a Novel oil gas well casing, it is characterized in that: comprise body, the outer wall of described body one end is provided with partially trapezoidal external screw thread, the other end is provided with the inclined trapezoidal internal thread that to match with described partially trapezoidal external screw thread, described tube wall has outer conical surface near side, partially trapezoidal external screw thread top, described inboard wall of tube body has internal conical surface near inclined trapezoidal internal thread end side.
2. a kind of Novel oil gas well casing according to claim 1, is characterized in that: when two adjacent oil gas well casings connect, two oil gas well casings are coupled together by the partially trapezoidal inclined trapezoidal internal thread screwed on another root oil gas well casing on an oil gas well casing.
3. a kind of Novel oil gas well casing according to claim 1, is characterized in that: the gradient of described outer conical surface and internal conical surface is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465505.0A CN104514494A (en) | 2013-09-29 | 2013-09-29 | Novel oil gas well pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465505.0A CN104514494A (en) | 2013-09-29 | 2013-09-29 | Novel oil gas well pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104514494A true CN104514494A (en) | 2015-04-15 |
Family
ID=52790321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310465505.0A Pending CN104514494A (en) | 2013-09-29 | 2013-09-29 | Novel oil gas well pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514494A (en) |
-
2013
- 2013-09-29 CN CN201310465505.0A patent/CN104514494A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150415 |