CN205955665U - Ocean is bored and is adopted special screw thread female joint of riser pipe - Google Patents
Ocean is bored and is adopted special screw thread female joint of riser pipe Download PDFInfo
- Publication number
- CN205955665U CN205955665U CN201620996370.XU CN201620996370U CN205955665U CN 205955665 U CN205955665 U CN 205955665U CN 201620996370 U CN201620996370 U CN 201620996370U CN 205955665 U CN205955665 U CN 205955665U
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- China
- Prior art keywords
- thread
- female
- joint
- female joint
- riser pipe
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Abstract
The utility model provides an ocean is bored and is adopted special screw thread female joint of riser pipe, the female joint is connected with the pipe with welding form, and with riser pipe body external diameter is the same, the female joint front end is provided with sealed inclined plane, the terminal conical surface sealing structure that cooperatees that sets up of female joint, conical surface sealing structure includes the interior thread sealing conical surface. The utility model discloses, interior screwed joint sets up sealed inclined plane and the O type sealing ring structure that outer screwed joint set up, is in interference fit during the use all the time, utilizes the sealed auxiliary seal effect that has strengthened of elasticity, screwed joint sets up the internal torque circular bead and sets up outer moment of torsion circular bead interference fit with outer screwed joint simultaneously, has strengthened antitorque square ability, has improved joint strength.
Description
Technical field
This utility model belongs to oil exploitation drilling equipment technical field, is related to the screw connection structure skill of drilling equipment
Art, adopts riser pipe special thread female joint particularly to a kind of offshore drill.
Background technology
Riser pipe is a kind of equipment used in offshore oil drilling operation.Main Function is to set up drilling well in drilling
Liquid circulation canal, supports the weight of sleeve pipe and wellhead tree tree.Under enter mode and be generally divided into the formula of piercing and hammer formula.
It is that beating the riser pipe into formula typically has two kinds of connected modes how using hammering formula in oil-gas field development：(1) a kind of
It is to adopt welding manner, advantage is that the external diameter of joint is identical with the external diameter of conduit, be easy to hammering and ensureing stratum to leading of conduit
The adhesion of pipe outer wall；Shortcoming is that weld interval is long, and welding quality has high demands.(2) one kind hangs conduit using joint shoulder, uses
Screwed connection mode.The advantage of conventional shoulder type water separation pipe joint is that working performance is higher, and typically each joint only needs
Want 2-3 minute can complete connect, shortcoming joint external diameter be more than outer tube diameter, piling stratum when conduit outer wall frictional resistance relatively
Greatly, easily cause conduit to be difficult to hammer to effective depth, and reduce the adhesion to conduit outer wall for the stratum, corresponding just reduction
The weight that conduit can be supported by.
With the reduction year by year to the drastically soaring of fossil energy demand and oil allowable exploitation for the world, current oil is exploited
The direction of extraction of field forward direction deep-well, ultradeep well, high-pressure oil-gas well, thick oil thermal extraction, directional well etc. progressively develops, particularly sea
Foreign deepwater regions oil gas field high pressured production, thus proposes increasingly harsher skill to the sealing of riser pipe, bonding strength
Art requires.Common joint is unable to meet mining environment inclement condition at aspects such as sealing, bonding strength and resistances to torsion
Oil/gas Well demand.People are forced to go to research and develop the relatively reliable Special threading connector of performance.
Utility model content
The purpose of this utility model be provide a kind of offshore drill adopt riser pipe special thread female joint, improve screw thread and
The structure of junction, improves sealing and bonding strength so as to more adapt to the marine oil and gas hole condition of harsh environmental conditions.
For realizing the purpose of this utility model, this utility model provides a kind of offshore drill and adopts riser pipe special thread
Female joint, described female joint is connected with conduit with Type of Welding, and identical with described riser pipe outer tube diameter, and described mother connects
Head front end is provided with sealing inclined-plane；Described female joint end arranges the conical surface sealing structure that matches, described conical surface sealing structure bag
Include female thread sealing cone.
Wherein, described female joint is provided with lifting draw-in groove, female thread, sealing inclined-plane, female thread sealing cone, internal torque platform
Shoulder；During female thread engagement, female thread sealing cone and external screw thread sealing cone interference fit；The internal torque shoulder of female adapter
With the outer torque shoulder interference fit in male joint.
Wherein, female thread adopts new partially trapezoidal tapered tread, and its pitch P is set as 2-3 tooth/in, and taper is 1:5-1:
6, thread crest is parallel to tubing bus.
Wherein, the carrying face angle (Q) of described partially trapezoidal tapered tread be set as with the clockwise direction angle of vertical be
Between 6 ° -7.5 °, within guiding face angle (D) is set in 45 °, the high G of thread is 3.8mm-4.2mm.
Wherein, female joint surface is provided with more than 3 roads lifting draw-in groove.
In the application, male joint is also male connection, and female joint is female adapter.
Compared with prior art, female joint arranges the O-shaped sealing of sealing inclined-plane and male connection setting to this utility model
Coil structures, are in interference fit all the time, enhance auxiliary seal effect using elastic packing during use, unload at the scene simultaneously
During button, internal and external threads engage, being gradually increased with torque wrench moment, and inside and outside sealing cone is from gap-contact progressively to pretension mistake
It is full of, finally constitutes metal to metal interference seal structure, by the support of double-layer sealing structure, greatly enhance the close of joint screw thread
Envelope property is it is ensured that sealing effectiveness.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of this utility model female adapter；
Fig. 3 is the structural representation of this utility model male connection；
Fig. 4 is the enlarged diagram of this utility model helicitic texture；
Fig. 5 is the welded schematic diagram of this utility model.
In figure, 1- female adapter, 2-O type sealing ring, 3- male connection, 4- lifts draw-in groove, 5- female thread, and 6- seals
Inclined-plane, 7- female thread sealing cone, 8- external screw thread sealing cone, 9- external screw thread, 10- o-ring groove, 11- internal torque shoulder,
The outer torque shoulder of 12-, Q- carries angle, D- guide angle, P- pitch, G- height of thread, and 13- welds orientational cone-shaped surface, and 14- welds shoulder
Face.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.It should be appreciated that this place
The specific embodiment of description only in order to explain this utility model, is not used to limit this utility model.
It should be noted that " connection " described herein and be used for expressing the word of " connection ", such as " being connected ",
" being connected " etc., it both may refer to a certain part and had been directly connected to another part it is also possible to refer to a certain part to pass through other portions
Part is connected with another part.
It should be noted that term used herein above is merely to describe specific embodiment, and it is not intended to restricted root
Illustrative embodiments according to the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
Be also intended to including plural form, additionally, it should be understood that, when in this manual using belong to "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, part or module, assembly and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that such use
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except here
Order beyond those of diagram or description is implemented.Additionally, term " comprising " and " having " and their any deformation it is intended that
It is to cover non-exclusive comprising, for example, contain process, method, system, product or the equipment of series of steps or unit not
It is necessarily limited to those steps or the unit clearly listed, but may include clearly not listing or for these processes, side
Method, product or the intrinsic other steps of equipment or unit.
For the ease of description, space relative terms can be used here, such as " ... on ", " ... top ",
" in ... upper surface ", " above " etc., for describe as a part shown in the figure or module or feature and other
Part or the spatial relation of module or feature.It should be appreciated that space relative terms be intended to comprise except part or
Different azimuth in use or operation outside orientation described by figure for person's module.For example, if the part in accompanying drawing
Or module is squeezed, then be described as " above miscellaneous part or module or construction " or " in miscellaneous part or module or
On construction " part or module after will be positioned as " below miscellaneous part or module or construction " or " at other
Under part or module or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.This part or module other different modes positioning (can also ratate 90 degrees or be in other
Orientation), and respective explanations are made to space used herein above description relatively.
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combine.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, this utility model embodiment discloses a kind of offshore drill and adopts the special spiral shell of riser pipe
Stricture of vagina joint, is arranged on riser pipe two ends, and including female adapter 1 and male connection 3, two end connectors are respectively with to welding shape
Formula is connected with conduit, and female adapter 1 is identical with male connection 3 external diameter, and identical with described riser pipe outer tube diameter,
Because external diameter is in the same size, compared with having shoulder structural joint, conduit outer wall frictional resistance is less, make conduit be easier hammered to
Effective depth, and enhance the adhesion to conduit outer wall for the stratum, accordingly increase the weight that conduit can be supported by, simultaneously
Improve working performance and prevent conduit from falling the safety coefficient of well.
As shown in Figure 1, Figure 2, Figure 3 shows, female adapter 1 arranges the O-ring seal of sealing inclined-plane and male connection 3 setting
2 structures are in interference fit all the time when using, and enhance auxiliary seal effect using elastic packing, go up shackle simultaneously at the scene
When, internal and external threads engage, being gradually increased with torque wrench moment, inside and outside sealing cone from gap-contact progressively to pretension interference,
Finally constitute metal to metal interference seal structure, by the support of double-layer sealing structure, greatly enhance the sealing of joint screw thread
Property is it is ensured that sealing effectiveness.
As shown in Figure 2 and Figure 3, internal and external screw thread joint is respectively provided with internal torque shoulder 11, outer torque shoulder 12, at the scene
When upper shackle uses, with internal and external threads engagement, being gradually increased of torque wrench moment, inside and outside torque shoulder is from gap-contact progressively
To shoulder to shoulder interference, torque resistant effect can be played when external force applies moment of torsion well, improve joint screw thread junction
The effect of incompressible, reaction torque, enhance concatenation ability.
As shown in Figure 2, Figure 3, Figure 4, external screw thread 9 and female thread 5 adopt new partially trapezoidal tapered tread, and its pitch P sets
For 2-3 tooth/in, taper is 1:5-1:6, thread crest is parallel to tubing bus.This screw thread belongs to partially trapezoidal tapered tread, and it holds
Section angle (Q) set and vertical clockwise direction angle as between 6 °～7.5 °, guiding face angle (D) be set between 45 °,
The high G of thread is 3.8mm～4.2mm, because using big pitch, steep-taper, the big design carrying face angle, upper shackle be easy to draw button and
Speed is fast, is particularly suitable for the button operation up and down of the Oil/gas Well of mining environment inclement condition, substantially reduces the difficulty of product use, section
In about labor time, improve working performance.
As shown in figure 5, in a preferred embodiment, there is provided a kind of new welding structure, female adapter and external screw thread
Structure and the solder side of conduit, are provided with welding structure, and welding structure includes a welding orientational cone-shaped surface, a welding shoulder
Face, such structure design is easy to align and is positioned, and bonding area is less, because the deformation that welding produces is less, also has simultaneously
Beneficial to Site Welding operation.
The above is only preferred implementation of the present utility model it is noted that general for the art
For logical technical staff, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these change
Enter and retouch also to should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of offshore drill adopt riser pipe special thread female joint it is characterised in that described female joint with Type of Welding with
Conduit is connected, and identical with described riser pipe outer tube diameter, and described female joint front end is provided with sealing inclined-plane；Described mother connects
Head end arranges the conical surface sealing structure that matches, and described conical surface sealing structure includes female thread sealing cone.
2. a kind of offshore drill according to claim 1 adopts riser pipe special thread female joint it is characterised in that described
Female joint is provided with lifting draw-in groove, female thread, sealing inclined-plane, female thread sealing cone, internal torque shoulder；During female thread engagement,
Female thread sealing cone and external screw thread sealing cone interference fit；Outer torsion on the internal torque shoulder of female adapter and male joint
Square shoulder interference fit.
3. a kind of offshore drill according to claim 2 adopts riser pipe special thread female joint it is characterised in that interior spiral shell
Stricture of vagina adopts new partially trapezoidal tapered tread, and its pitch P is set as 2-3 tooth/in, and taper is 1:5-1:6, thread crest is parallel to pipe
Material bus.
4. a kind of offshore drill according to claim 3 adopts riser pipe special thread female joint it is characterised in that described
The carrying face angle (Q) of partially trapezoidal tapered tread be set as and vertical clockwise direction angle be 6 ° -7.5 ° between, spigot surface
Within angle (D) is set in 45 °, the high G of thread is 3.8mm-4.2mm.
5. a kind of offshore drill according to claim 1 using riser pipe special thread female joint it is characterised in that mother connects
Head surface is provided with more than 3 roads lifting draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620996370.XU CN205955665U (en) | 2016-08-30 | 2016-08-30 | Ocean is bored and is adopted special screw thread female joint of riser pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620996370.XU CN205955665U (en) | 2016-08-30 | 2016-08-30 | Ocean is bored and is adopted special screw thread female joint of riser pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205955665U true CN205955665U (en) | 2017-02-15 |
Family
ID=57978353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620996370.XU Expired - Fee Related CN205955665U (en) | 2016-08-30 | 2016-08-30 | Ocean is bored and is adopted special screw thread female joint of riser pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205955665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150396A (en) * | 2016-08-30 | 2016-11-23 | 天津德华石油装备制造有限公司 | A kind of offshore drill uses riser pipe special thread female joint |
-
2016
- 2016-08-30 CN CN201620996370.XU patent/CN205955665U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150396A (en) * | 2016-08-30 | 2016-11-23 | 天津德华石油装备制造有限公司 | A kind of offshore drill uses riser pipe special thread female joint |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20190830 |