CN106401490A - Coupling for petroleum pipeline - Google Patents
Coupling for petroleum pipeline Download PDFInfo
- Publication number
- CN106401490A CN106401490A CN201611022324.0A CN201611022324A CN106401490A CN 106401490 A CN106401490 A CN 106401490A CN 201611022324 A CN201611022324 A CN 201611022324A CN 106401490 A CN106401490 A CN 106401490A
- Authority
- CN
- China
- Prior art keywords
- petroleum pipeline
- box cupling
- coupling
- seal rings
- sealing ring
- 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
- 239000003208 petroleum Substances 0.000 title claims abstract description 20
- 230000008878 coupling Effects 0.000 title abstract 7
- 238000010168 coupling process Methods 0.000 title abstract 7
- 238000005859 coupling reaction Methods 0.000 title abstract 7
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000000630 rising effect Effects 0.000 claims 1
- 239000003129 oil well Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
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)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a coupling for a petroleum pipeline. The coupling comprises coupling pipe regions and internal threads. Bumps toward the axis direction of a pipe are formed in the middle parts of the coupling pipe regions, and seal rings are arranged on two sides of each bump. As the inward bumps are formed in the center of the coupling and the seal rings are arranged on two sides of each bump, when the petroleum pipeline enters the coupling through the internal threads, the seal rings will be extruded, so that the seal rings fill the gaps among the bumps, the internal threads and the petroleum pipeline, and therefore, the sealing property at a pipeline connector is enhanced.
Description
Technical field
The present invention relates to petroleum pipeline technical field, especially a kind of petroleum pipeline box cupling.
Background technology
Oil well is the eyelet being bored by exploitation oil, is that oil rises to the passage of well head by shaft bottom.General oil well is boring
After reaching oil reservoir, under enter production string, and the annular space injection oil-well cement between sleeve pipe and the borehole wall, to safeguard the borehole wall and closing
Oil, gas and water layer, after penetrate out oil reservoir by the requirement perforating gun of oil field development, form passage, under enter oil pipe, lure stream with suitable
Method, oil is risen to well head by oil well shaft bottom.Oil well petroleum pipeline is typically connected with box cupling, and box cupling is adopted with petroleum pipeline
Threaded, because box cupling and petroleum pipeline are not one it may occur that oil leakage phenomenon.
Content of the invention
The invention aims to solving the above problems, there is provided a kind of petroleum pipeline box cupling.
The purpose of the present invention to implement by the following technical programs：
A kind of petroleum pipeline box cupling, including box cupling area under control and internal thread, is provided with to pipe axle in the middle part in described box cupling area under control
The projection in line direction, is respectively provided with a sealing ring in raised both sides.
Further, described sealing ring is fluorosioloxane rubber O-ring.
Further, described internal thread is arranged between box cupling one end and projection.
Beneficial effects of the present invention are：
The petroleum pipeline box cupling that the present invention provides, is provided with inside projection at box cupling center, is provided with sealing ring in raised both sides, when
Petroleum pipeline by internal thread enter box cupling after, can crush seal circle, make sealing ring fill up projection, internal thread and petroleum pipeline it
Between space, strengthen pipe joint at sealing.
Brief description
Fig. 1 is the structure chart of petroleum pipeline box cupling of the present invention.
In figure：1- box cupling area under control；2- internal thread；3- is raised；4- sealing ring.
Specific embodiment
As shown in figure 1, petroleum pipeline box cupling described in the embodiment of the present invention, including box cupling area under control 1 and internal thread 2, described
The middle part in box cupling area under control 1 is provided with the projection 3 to tube axis direction, is respectively provided with a sealing ring 4 in raised 2 both sides.Interior spiral shell
Line 2 is arranged between box cupling one end and raised 3, and fluorosioloxane rubber O-ring preferably used by sealing ring 4.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to aforementioned reality
Apply example the present invention has been described in detail, for a person skilled in the art, it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or carries out equivalent to wherein some technical characteristics.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (3)
1. a kind of petroleum pipeline box cupling, including box cupling area under control and internal thread it is characterised in that pars intermedia in described box cupling area under control
Position is provided with the projection to tube axis direction, is respectively provided with a sealing ring in raised both sides.
2. petroleum pipeline box cupling according to claim 1 is it is characterised in that described sealing ring is fluorosioloxane rubber O-ring.
3. petroleum pipeline box cupling according to claim 1 it is characterised in that described internal thread be arranged at box cupling one end with convex
Between rising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022324.0A CN106401490A (en) | 2016-11-21 | 2016-11-21 | Coupling for petroleum pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022324.0A CN106401490A (en) | 2016-11-21 | 2016-11-21 | Coupling for petroleum pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106401490A true CN106401490A (en) | 2017-02-15 |
Family
ID=58068702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611022324.0A Pending CN106401490A (en) | 2016-11-21 | 2016-11-21 | Coupling for petroleum pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401490A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4153283A (en) * | 1976-09-14 | 1979-05-08 | Mannesmann Aktiengesellschaft | Casing joint |
| CN2851510Y (en) * | 2005-12-29 | 2006-12-27 | 岳为 | Anticorrosion sucker rod coupling |
| CN201687411U (en) * | 2010-04-27 | 2010-12-29 | 无锡法斯特能源开发科技有限公司 | Anti-corrosion coupling coaxial with oil pipe |
| CN203161110U (en) * | 2013-03-28 | 2013-08-28 | 山东墨龙石油机械股份有限公司 | Oil pipe connector used for bailing well |
| CN206190228U (en) * | 2016-11-21 | 2017-05-24 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline coupling |
-
2016
- 2016-11-21 CN CN201611022324.0A patent/CN106401490A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4153283A (en) * | 1976-09-14 | 1979-05-08 | Mannesmann Aktiengesellschaft | Casing joint |
| CN2851510Y (en) * | 2005-12-29 | 2006-12-27 | 岳为 | Anticorrosion sucker rod coupling |
| CN201687411U (en) * | 2010-04-27 | 2010-12-29 | 无锡法斯特能源开发科技有限公司 | Anti-corrosion coupling coaxial with oil pipe |
| CN203161110U (en) * | 2013-03-28 | 2013-08-28 | 山东墨龙石油机械股份有限公司 | Oil pipe connector used for bailing well |
| CN206190228U (en) * | 2016-11-21 | 2017-05-24 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |