CN108442888A - A kind of oil pipe reducing short-circuit device - Google Patents
A kind of oil pipe reducing short-circuit device Download PDFInfo
- Publication number
- CN108442888A CN108442888A CN201810452803.9A CN201810452803A CN108442888A CN 108442888 A CN108442888 A CN 108442888A CN 201810452803 A CN201810452803 A CN 201810452803A CN 108442888 A CN108442888 A CN 108442888A
- Authority
- CN
- China
- Prior art keywords
- pipe
- sealing ring
- small diameter
- diameter
- diameter tube
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 241000254175 Anthonomus grandis Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
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)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The present invention discloses a kind of oil pipe reducing short-circuit device, including large-diameter pipe, it is provided with small diameter tube in the large-diameter pipe, the major diameter inside pipe wall is provided with large-diameter pipe internal thread, it is provided with large-diameter pipe external screw thread on the outside of the large-diameter pipe, it is provided with the first sealing ring at the top of the large-diameter pipe, the small diameter tube is internally provided with small diameter tube internal thread, it is provided with small diameter tube external screw thread on the outside of the small diameter tube, it is provided with third sealing ring at the top of the small diameter tube, the path bottom of the tube is provided with the 4th sealing ring, and lower section and the small diameter tube interface of the large-diameter pipe are provided with the second sealing ring；This kind of oil pipe reducing short-circuit device is simple in structure, easy to use, and leakproofness is high, can the oil pipe of two kinds of specific dimensions be carried out quick joining and fixed, reduce cumbersome operation, it is convenient to be provided for operating personnel.
Description
Technical field
The present invention relates to a kind of oil pipe reducing short-circuit devices, particularly belong to petroleum works equipment technical field.
Background technology
Currently, oilfield downhole operation construction site generally uses 27/8 inch heavy wall tubing.Oil pipe is 25（Pressure rating）System
The conventional well head positioning of row is outstanding using flange suspension type oil pipe using the boll-weevil hanger of conical surface suspension, 25 serial decentralized wellhead positioning
Hanging device, conical surface hanger internal thread be mostly 27/8 inch thicken, and flange hanger internal thread be mostly 23/8 inch thicken, it is corresponding just
Need two kinds of lifting subs, two kinds of pipe elevators.It needs to be fixedly connected by specific adapter flange between it, installation is more
It is cumbersome.
Invention content
The present invention provides a kind of oil pipe reducing short-circuit device, simple in structure, easy to use, and leakproofness is high, can be by two kinds
The oil pipe of specific dimensions carries out quick joining and fixes, and reduces cumbersome operation, it is convenient to be provided for operating personnel.
To solve the problems in background technology, the present invention provides the following technical solutions：A kind of oil pipe reducing short circuit dress
It sets, including large-diameter pipe, small diameter tube is provided in the large-diameter pipe, the major diameter inside pipe wall is provided with large-diameter pipe internal thread, described
It is provided with large-diameter pipe external screw thread on the outside of large-diameter pipe, is provided with the first sealing ring at the top of the large-diameter pipe, is set inside the small diameter tube
It is equipped with small diameter tube internal thread, small diameter tube external screw thread is provided on the outside of the small diameter tube, it is close to be provided with third at the top of the small diameter tube
Seal, the path bottom of the tube are provided with the 4th sealing ring, and lower section and the small diameter tube interface of the large-diameter pipe are provided with second
Sealing ring.
It uses and is threadedly coupled as a preferred technical solution of the present invention, between the small diameter tube and the large-diameter pipe.
As a preferred technical solution of the present invention, first sealing ring, second sealing ring, the third are close
Seal, the 4th sealing ring are all made of rubber material.
As a preferred technical solution of the present invention, the outer diameter of the large-diameter pipe is 93 millimeters, outside the small diameter tube
Diameter is 63.555 millimeters.
As a preferred technical solution of the present invention, first sealing ring, the large-diameter pipe internal diameter be 90 millimeters.
As a preferred technical solution of the present invention, second sealing ring, the small diameter tube internal diameter be 60.555
Millimeter.
As a preferred technical solution of the present invention, first sealing ring, second sealing ring and large-diameter pipe are logical
It crosses rubber-metal adhesive and pastes fixation, the third sealing ring, the 4th sealing ring and small diameter tube are viscous by rubber-metal
Mixture, which is pasted, to be fixed.
The advantageous effect that is reached of the present invention is：Structure of the invention reasonable design, simple in structure, easy to use, leakproofness
Height, when use, will be threadedly coupled compared between the oil pipe of large-diameter pipe and large-diameter pipe internal thread, it is made to be fixed with large-diameter pipe, it is fixed after oil
The case where Guan Huiyu third sealing rings contact, third sealing ring seals by oil pipe and small diameter tube contact portion, prevents oil leak,
It will be then threadedly coupled between smaller oil pipe and small diameter tube internal thread, it made to be fixed with small diameter tube, two kinds of differences is allowed to manage
The oil pipe linking of diameter connects.If oil pipe caliber is larger, can by oil pipe respectively with large-diameter pipe external screw thread, small diameter tube external screw thread
Between be threadedly coupled, carry out linking fixation convenient for various sizes of oil pipe, and the first sealing ring makes large-diameter pipe be connect with oil pipe
It is sealed between mouthful, for the 4th sealing ring by being sealed between small diameter tube and tubing interface, the second sealing ring makes major diameter
It is sealed between pipe and small diameter tube interface.This kind of oil pipe reducing short-circuit device can carry out the oil pipe of two kinds of specific dimensions
Quick joining is fixed, and cumbersome operation is reduced, and it is convenient to be provided for operating personnel.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is sealing ring schematic diagram in the present invention；
In figure：1, large-diameter pipe；2, small diameter tube；3, the first sealing ring；4, the second sealing ring；5, third sealing ring；6, the 4th sealing
Circle；7, large-diameter pipe internal thread；8, large-diameter pipe external screw thread；9, small diameter tube internal thread；10, small diameter tube external screw thread.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment：As shown in Figs. 1-2, including large-diameter pipe 1, small diameter tube 2, the large-diameter pipe 1 are provided in the large-diameter pipe 1
Inner wall is provided with large-diameter pipe internal thread 7, and 1 outside of the large-diameter pipe is provided with large-diameter pipe external screw thread 8, and 1 top of the large-diameter pipe is set
It is equipped with the first sealing ring 3, the small diameter tube 2 is internally provided with small diameter tube internal thread 9, and 2 outside of the small diameter tube is provided with path
Pipe external screw thread 10,2 top of the small diameter tube are provided with third sealing ring 5, and 2 bottom of the small diameter tube is provided with the 4th sealing ring 6,
The lower section of the large-diameter pipe 1 is provided with the second sealing ring 4 with 2 interface of small diameter tube.
In order to keep this kind of oil pipe reducing short-circuit device easy to use, spiral shell is used between the small diameter tube 2 and the large-diameter pipe 1
Line connects, and first sealing ring 3, second sealing ring 4, the third sealing ring 5, the 4th sealing ring 6 are all made of
The outer diameter of rubber material, the large-diameter pipe 1 is 93 millimeters, and the outer diameter of the small diameter tube 2 is 63.555 millimeters, first sealing
Circle 3, the internal diameter of the large-diameter pipe 1 are 90 millimeters, second sealing ring 4, the small diameter tube 2 internal diameter be 60.555 millimeters,
The internal diameter of second sealing ring 4 is 60.555 millimeters.
Structure of the invention reasonable design, easy for installation, when use, will be compared between the oil pipe of large-diameter pipe and large-diameter pipe internal thread 7
Be threadedly coupled, itself and large-diameter pipe 1 made to fix, it is fixed after oil pipe can be contacted with third sealing ring 5, third sealing ring 5 allow oil pipe with
2 contact portion of small diameter tube seals, the case where preventing oil leak, then by between smaller oil pipe and small diameter tube internal thread 9 into
Row is threadedly coupled, it is made to be fixed with small diameter tube 2, and the oil pipe linking of two kinds of different tube diameters is allowed to connect.If oil pipe caliber is larger
When, oil pipe can be threadedly coupled between large-diameter pipe external screw thread 8, small diameter tube external screw thread 10 respectively, convenient for various sizes of
Oil pipe carries out linking fixation, and the first sealing ring 3 makes to be sealed between large-diameter pipe 1 and tubing interface, and the 4th sealing ring 6 allows
It is sealed between small diameter tube 2 and tubing interface, the second sealing ring 4 makes to carry out between large-diameter pipe and small diameter tube interface close
Envelope.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (7)
1. a kind of oil pipe reducing short-circuit device, including large-diameter pipe（1）, which is characterized in that the large-diameter pipe（1）Inside it is provided with path
Pipe（2）, the large-diameter pipe（1）Inner wall is provided with large-diameter pipe internal thread（7）, the large-diameter pipe（1）Outside is provided with outside large-diameter pipe
Screw thread（8）, the large-diameter pipe（1）Top is provided with the first sealing ring（3）, the small diameter tube（2）It is internally provided in small diameter tube
Screw thread（9）, the small diameter tube（2）Outside is provided with small diameter tube external screw thread（10）, the small diameter tube（2）It is close that top is provided with third
Seal（5）, the small diameter tube（2）Bottom is provided with the 4th sealing ring（6）, the large-diameter pipe（1）Lower section and small diameter tube（2）It connects
It is provided with the second sealing ring at mouthful（4）.
2. a kind of oil pipe reducing short-circuit device according to claim 1, which is characterized in that the small diameter tube（2）With it is described
Large-diameter pipe（1）Between using be threadedly coupled.
3. a kind of oil pipe reducing short-circuit device according to claim 1, which is characterized in that first sealing ring（3）, institute
State the second sealing ring（4）, the third sealing ring（5）, the 4th sealing ring（6）It is all made of rubber material.
4. a kind of oil pipe reducing short-circuit device according to claim 1, which is characterized in that the large-diameter pipe（1）Outer diameter
It is 93 millimeters, the small diameter tube（2）Outer diameter be 63.555 millimeters.
5. a kind of oil pipe reducing short-circuit device according to claim 1, which is characterized in that first sealing ring（3）, institute
State large-diameter pipe（1）Internal diameter be 90 millimeters.
6. a kind of oil pipe reducing short-circuit device according to claim 1, which is characterized in that second sealing ring（4）, institute
State small diameter tube（2）Internal diameter be 60.555 millimeters.
7. a kind of oil pipe reducing short-circuit device according to claim 1, which is characterized in that first sealing ring（3）, institute
State the second sealing ring（4）With large-diameter pipe（1）It is pasted and is fixed by rubber-metal adhesive, the third sealing ring（5）, described
Four sealing rings（6）With small diameter tube（2）It is pasted and is fixed by rubber-metal adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452803.9A CN108442888A (en) | 2018-05-13 | 2018-05-13 | A kind of oil pipe reducing short-circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452803.9A CN108442888A (en) | 2018-05-13 | 2018-05-13 | A kind of oil pipe reducing short-circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108442888A true CN108442888A (en) | 2018-08-24 |
Family
ID=63203096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810452803.9A Pending CN108442888A (en) | 2018-05-13 | 2018-05-13 | A kind of oil pipe reducing short-circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108442888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780195A (en) * | 2021-02-23 | 2021-05-11 | 大庆市天德忠石油科技有限公司 | Variable-diameter oil pipe nipple for oil production well |
-
2018
- 2018-05-13 CN CN201810452803.9A patent/CN108442888A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780195A (en) * | 2021-02-23 | 2021-05-11 | 大庆市天德忠石油科技有限公司 | Variable-diameter oil pipe nipple for oil production well |
| CN112780195B (en) * | 2021-02-23 | 2022-02-08 | 大庆市天德忠石油科技有限公司 | Variable-diameter oil pipe nipple for oil production well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180824 |
|
| WD01 | Invention patent application deemed withdrawn after publication |