CN106869820A - A kind of new hermetic seal special buckle oil pipe - Google Patents
A kind of new hermetic seal special buckle oil pipe Download PDFInfo
- Publication number
- CN106869820A CN106869820A CN201510906189.5A CN201510906189A CN106869820A CN 106869820 A CN106869820 A CN 106869820A CN 201510906189 A CN201510906189 A CN 201510906189A CN 106869820 A CN106869820 A CN 106869820A
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- box cupling
- conical surface
- torque shoulder
- surface seal
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 24
- 238000010168 coupling process Methods 0.000 claims abstract description 24
- 238000005859 coupling reaction Methods 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000013011 mating Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000010913 used oil 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)
- Tires In General (AREA)
Abstract
The invention discloses a kind of new hermetic seal special buckle oil pipe, including oil pipe body and box cupling, the body external screw thread being sequentially provided with oil pipe body, body conical surface seal face, tube end torque shoulder；Coupling inner thread, box cupling conical surface seal face, the coupling end torque shoulder being sequentially provided with box cupling, as internal thread and external screw thread are engaged, body conical surface seal face coordinates with box cupling conical surface seal face, and the body torque shoulder in oil pipe tube end coordinates with the coupling end torque shoulder on coupling end.As internal thread and external screw thread are engaged, body conical surface seal face coordinates with box cupling conical surface seal face, greatly enhances the sealing of oil pipe, improves sealing effectiveness；Torque shoulder in oil pipe tube end coordinates with the coupling end torque shoulder on coupling end, and torque resistant effect can be well played when external force applies moment of torsion, improves the incompressible of oil pipe junction, reaction torque effect, enhances concatenation ability.
Description
Technical field
The invention belongs to oil exploitation drilling equipment technical field, it is related to the tubing round thread of drilling equipment to connect skill
Art, more particularly to a kind of new hermetic seal special buckle oil pipe.
Background technology
The oil bushing threaded connector of API standard is the most frequently used oil sleeve joint of China, is also each oil jacket of China
The leading products of pipe factory, this product technology is ripe, it is easy to process.But, the oil sleeve joint exists
Some intrinsic defects are still suffered from structure, such as seal that unreliable, resistance to torsion is low and the easy thread gluing of screw thread,
Limit the use of API tubing and casings.
Reduction year by year with the world to the drastically soaring and oil allowable exploitation of fossil energy demand, current stone
The exploitation side of oily exploitation field forward direction deep-well, ultradeep well, high-pressure oil-gas well, thick oil thermal extraction, directional well etc.
To progressively developing, increasingly harsher technical requirements are thus proposed to the sealing between petroleum pipeline and pipe.In the past
A large amount of API (American Petroleum Institute (API)) standard round threads for using and buttress thread joint gas tightness,
Bonding strength and resistance to torsion aspect are unable to the demand of the Oil/gas Well for meeting mining environment inclement condition.Force
People go to research and develop the relatively reliable Special threading connector of performance.
The content of the invention
It is an object of the invention to provide a kind of new hermetic seal special buckle oil pipe, the knot of screw thread and junction is improved
Structure, improves sealing and anti-compression properties, the oil gas hole condition for making it more adapt to harsh environmental conditions.
To realize the purpose of the present invention, the invention provides a kind of new hermetic seal special buckle oil pipe, including oil
Pipe body 1 and box cupling 5, the two ends of the box cupling 5 can be connected with oil pipe body 1,1 liang of oil pipe body
Body external screw thread 2, body conical surface seal face 3, tube end torque shoulder 4 that end is sequentially provided with from inside to outside；
Coupling inner thread 6, box cupling conical surface seal face 7, box cupling that the equal ecto-entad in the two ends of the box cupling 5 is sequentially provided with
End torque shoulder 8, as coupling inner thread 6 and body external screw thread 2 are engaged, body conical surface seal face 3 with connect
Hoop conical surface seal face 7 is in mating connection, and body torque shoulder 4 is in mating connection with coupling end torque shoulder 8.
Wherein, the body external screw thread 2 and coupling inner thread 6 use new partially trapezoidal tapered tread, its spiral shell
It is set as 8 teeth/in away from P, thread crest is parallel to tubing bus.
Wherein, the clockwise direction angle for carrying face angle Q settings and vertical plane of the partially trapezoidal tapered tread
Between 3 °~3.5 °, it is oriented to face angle D and is set in 9 °~11 °.
Wherein, the external diameter of oil pipe body 1 is 60.32mm~73.03mm.
Compared with prior art, the present invention, as internal thread and external screw thread are engaged, body conical surface seal face 3
Coordinate with box cupling conical surface seal face 7, greatly enhance the sealing of oil pipe, improve sealing effectiveness；Oil pipe pipe
Torque shoulder 4 on the end of body 1 coordinates with the coupling end torque shoulder 8 on the end of box cupling 5, when external force applies to turn round
Torque resistant effect can be well played during square, the incompressible of oil pipe junction, reaction torque effect is improve, increased
Strong concatenation ability.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of body male end of the present invention；
Fig. 3 is the structural representation at coupling inner thread end of the present invention；
Fig. 4 is the enlarged diagram of helicitic texture of the present invention.
In figure：1- oil pipe bodys, 2- body external screw threads, 3- body conical surface seals face, 4- tube end moment of torsion platforms
Shoulder, 5- box cuplings, 6- coupling inner threads, 7- box cupling conical surface seals face, 8- coupling end torque shoulders, Q- is carried
Face angle, D- is oriented to face angle, P- pitch.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that herein
Described specific embodiment is only used to explain the present invention, is not intended to limit the present invention.
It should be noted that " connection " described herein and the word for expressing " connection ", such as
" being connected ", " connected " etc., were both directly connected to including a certain part with another part, also including a certain portion
Part is connected by miscellaneous part with another part.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the invention provides a kind of new hermetic seal special buckle oil pipe,
Including oil pipe body 1 and box cupling 5, the two ends of the box cupling 5 can be connected with oil pipe body 1, oil pipe pipe
Body external screw thread 2, body conical surface seal face 3, tube end moment of torsion that the two ends of body 1 are sequentially provided with from inside to outside
Shoulder 4；Coupling inner thread 6, box cupling conical surface seal face that the equal ecto-entad in the two ends of the box cupling 5 is sequentially provided with
7th, coupling end torque shoulder 8, as coupling inner thread 6 and body external screw thread 2 are engaged, body conical surface seal
Face 3 is in mating connection with box cupling conical surface seal face 7, body torque shoulder 4 and the phase of coupling end torque shoulder 8
It is connected.
Wherein, the body external screw thread 2 and coupling inner thread 6 use new partially trapezoidal tapered tread, its spiral shell
It is set as 8 teeth/in away from P, thread crest is parallel to tubing bus.
Wherein, the clockwise direction angle for carrying face angle Q settings and vertical plane of the partially trapezoidal tapered tread
Between 3 °~3.5 °, it is oriented to face angle D and is set in 9 °~11 °.
Wherein, the external diameter of oil pipe body 1 is 60.32mm~73.03mm.
Compared with prior art, the present invention, as internal thread and external screw thread are engaged, body conical surface seal face 3
Coordinate with box cupling conical surface seal face 7, greatly enhance the sealing of oil pipe, improve sealing effectiveness；Oil pipe pipe
Torque shoulder 4 on the end of body 1 coordinates with the coupling end torque shoulder 8 on the end of box cupling 5, when external force applies to turn round
Torque resistant effect can be well played during square, the incompressible of oil pipe junction, reaction torque effect is improve, increased
Strong concatenation ability.
The above is only the preferred embodiment of the present invention, it is noted that for the art
For those of ordinary skill, under the premise without departing from the principles of the invention, some improvement and profit can also be made
Decorations, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of new hermetic seal special buckle oil pipe, it is characterised in that including oil pipe body (1) and box cupling (5),
The two ends of the box cupling (5) can be connected with oil pipe body (1), and oil pipe body (1) two ends are by interior
Body external screw thread (2), body conical surface seal face (3), the tube end torque shoulder (4) being outwards sequentially provided with；
Coupling inner thread (6) that the equal ecto-entad in box cupling (5) two ends is sequentially provided with, box cupling conical surface seal face (7),
Coupling end torque shoulder (8), as coupling inner thread (6) and body external screw thread (2) are engaged, body cone
Face sealing surface (3) is in mating connection with box cupling conical surface seal face (7), body torque shoulder (4) and box cupling
End torque shoulder (8) is in mating connection.
2. a kind of new hermetic seal special buckle oil pipe according to claim 1, it is characterised in that described
Body external screw thread (2) and coupling inner thread (6) use new partially trapezoidal tapered tread, the setting of its pitch P
It is 8 teeth/in, thread crest is parallel to tubing bus.
3. a kind of new hermetic seal special buckle oil pipe according to claim 2, it is characterised in that described
The carrying face angle (Q) of partially trapezoidal tapered tread sets and the clockwise direction angle of vertical plane is 3 °~3.5
Between °, it is oriented to face angle (D) and is set in 9 °~11 °.
4. a kind of new hermetic seal special buckle oil pipe according to claim 1, it is characterised in that oil pipe
The external diameter of body (1) is 60.32mm~73.03mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906189.5A CN106869820A (en) | 2015-12-10 | 2015-12-10 | A kind of new hermetic seal special buckle oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906189.5A CN106869820A (en) | 2015-12-10 | 2015-12-10 | A kind of new hermetic seal special buckle oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106869820A true CN106869820A (en) | 2017-06-20 |
Family
ID=59237288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510906189.5A Pending CN106869820A (en) | 2015-12-10 | 2015-12-10 | A kind of new hermetic seal special buckle oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106869820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488223A (en) * | 2018-12-23 | 2019-03-19 | 扬州龙川钢管有限公司 | A kind of novel seal button oil annular tube structure |
-
2015
- 2015-12-10 CN CN201510906189.5A patent/CN106869820A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488223A (en) * | 2018-12-23 | 2019-03-19 | 扬州龙川钢管有限公司 | A kind of novel seal button oil annular tube structure |
| CN109488223B (en) * | 2018-12-23 | 2024-05-28 | 扬州龙川能源装备有限公司 | Novel sealing oil-buckling sleeve structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |