CN206368689U - A kind of offshore drill uses riser pipe Special threading connector - Google Patents
A kind of offshore drill uses riser pipe Special threading connector Download PDFInfo
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- CN206368689U CN206368689U CN201621005032.1U CN201621005032U CN206368689U CN 206368689 U CN206368689 U CN 206368689U CN 201621005032 U CN201621005032 U CN 201621005032U CN 206368689 U CN206368689 U CN 206368689U
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- male connection
- sealing
- riser pipe
- female adapter
- external screw
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Abstract
The utility model provides a kind of offshore drill and uses riser pipe Special threading connector, and male connection screw tip is provided with elastic sealing structure, including o-ring groove, O-ring seal, and the O-ring seal is arranged in o-ring groove；The female adapter front end is provided with the sealing inclined-plane being engaged with O-ring seal；The female adapter end sets with male connection front end and is engaged conical surface sealing structure, and the conical surface sealing structure includes internal thread sealing cone and external screw thread sealing cone.The utility model, female adapter sets the O-ring seal structure that sealing inclined-plane is set with male connection, and auxiliary seal effect is enhanced using elastic packing in interference fit all the time when using；Female adapter simultaneously sets internal torque shoulder to set outer torque shoulder to be interference fitted with male connection, enhances torque resistant ability, improves bonding strength.
Description
Technical field
The utility model belongs to oil exploitation drilling equipment technical field, is related to the screw connection structure skill of drilling equipment
Art, more particularly to a kind of offshore drill uses riser pipe Special threading connector.
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.Tripping in mode is generally divided into the formula of piercing and hammers formula.
It is many using formula is hammered in oil-gas field development, the riser pipe beaten into formula typically has two kinds of connected modes：
(1) one kind is to use welding manner, and advantage is that the external diameter of joint is identical with the external diameter of conduit, is easy to hammering for conduit
With adhesion of the guarantee stratum to conduit outer wall；Have the disadvantage that weld interval is long, welding quality requires high.
(2) it is a kind of using joint shoulder suspension conduit, use screwed connection mode.Conventional shoulder type water separation pipe joint
Advantage is that operating efficiency is higher, and general each joint only needs to that connection can be completed within 2-3 minutes, and shortcoming joint external diameter is more than
Outer tube diameter, conduit outer wall frictional resistance is larger during piling stratum, easily causes conduit and is difficult to hammer to effective depth, and drops
Low adhesion of the stratum to conduit outer wall, accordingly just reduces the weight that conduit can be supported.
Reduction year by year with the world to the drastically soaring and oil allowable exploitation of fossil energy demand, current oil exploitation
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, sealing thus to riser pipe, bonding strength propose increasingly harsher skill
Art requirement.Common joint is unable to meet mining environment inclement condition in terms of sealing, bonding strength and resistance 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
Riser pipe Special threading connector is used it is an object of the invention to provide a kind of offshore drill, screw thread and junction is improved
Structure, improve sealing and bonding strength, the marine oil and gas hole condition for making it more adapt to harsh environmental conditions.
To realize the purpose of this utility model, the utility model provides a kind of offshore drill and uses riser pipe special thread
Joint, the joint include female adapter and male connection, two end connectors respectively to be connected to Type of Welding with conduit,
The female adapter is identical with male connection external diameter, and identical with the riser pipe outer tube diameter, and the external screw thread connects
Head thread end is provided with elastic sealing structure, including o-ring groove, O-ring seal, and the O-ring seal is arranged at sealing ring
In groove；The female adapter front end is provided with the sealing inclined-plane being engaged with O-ring seal；The female adapter end
Set with male connection front end and be engaged conical surface sealing structure, the conical surface sealing structure includes internal thread sealing cone and outer
The thread seal conical surface.
Wherein, the female adapter is provided with lifting neck, internal thread, sealing inclined-plane, internal thread sealing cone, interior torsion
Square shoulder；Male connection is provided with outer torque shoulder, external screw thread sealing cone, external screw thread, o-ring groove, with internal thread
With external screw thread engagement, internal thread sealing cone is interference fitted with external screw thread sealing cone；The internal torque shoulder of female adapter with
Outer torque shoulder interference fit in male connection.
Wherein, external screw thread and internal thread use new partially trapezoidal tapered tread, and its pitch P is set as 2-3 teeth/in, taper
For 1:5-1:6, thread crest is parallel to tubing bus.
Wherein, the carrying face angle (Q) of the partially trapezoidal tapered tread is set as that the clockwise direction angle with vertical plane is
Between 6 ° -7.5 °, it is oriented to face angle (D) and is set within 45 °, the high G of thread is 3.8mm-4.2mm.
Wherein, female adapter surface is provided with more than 3 roads and lifts neck.
Compared with prior art, it is O-shaped that female adapter sets that sealing inclined-plane and male connection set to the utility model
Ring structure, auxiliary seal effect is enhanced, while at the scene when using in interference fit using elastic packing all the time
During upper shackle, internal and external threads engagement, with the gradually increase of torque wrench moment, inside and outside sealing cone is from gap-contact progressively to pre-
Tight interference, finally constitutes metal to metal interference seal structure, by the support of double-layer sealing structure, greatly enhances joint screw thread
Sealing, it is ensured that sealing effectiveness.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model female adapter；
Fig. 3 is the structural representation of the utility model male connection；
Fig. 4 is the enlarged diagram of the utility model helicitic texture；
Fig. 5 is the welded schematic diagram of the utility model
In figure, 1- female adapters, 2-O type sealing rings, 3- male connections, 4- lifting necks, 5- internal threads, 6- sealings
Inclined-plane, 7- internal thread sealing cones, 8- external screw thread sealing cones, 9- external screw threads, 10- o-ring grooves, 11- internal torque shoulders,
The outer torque shoulders of 12-, Q- carryings angle, D- guide angles, P- pitch, G- height of threads, 13- welding orientational cone-shaped surfaces, 14- welding shoulders
Face.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
It should be noted that " connection " described herein and the word for expressing " connection ", such as " being connected ",
" connected " etc., it both may refer to a certain part and had been directly connected to another part, and can also refer to a certain part and pass through other portions
Part is connected with another part.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
Be also intended to include 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, component 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 " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein
Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing process, method, system, product or the equipment of series of steps or unit not
Be necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a part shown in the figure or module or feature and other
The spatial relation of part or module or feature.It should be appreciated that space relative terms be intended to include except part or
Different azimuth in use or operation outside orientation of person's module described in figure.If for example, 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.The part or module can also the positioning of other different modes (be rotated by 90 ° or in other
Orientation), and respective explanations are made to the relative description in space used herein above.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model embodiment discloses a kind of offshore drill using the special spiral shell of riser pipe
Line joint, is arranged on riser pipe two ends, 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 the external diameter of male connection 3, and identical with the 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 smaller, make conduit be easier hammered to
Effective depth, and adhesion of the stratum to conduit outer wall is enhanced, the weight that conduit can be supported accordingly is increased, simultaneously
Improve operating efficiency and prevent conduit from falling the safety coefficient of well.
As shown in Figure 1, Figure 2, Figure 3 shows, female adapter 1 sets the O-ring seal that sealing inclined-plane is set with male connection 3
All the time in interference fit, auxiliary seal effect is enhanced using elastic packing when in use for 2 structures, while upper shackle at the scene
When, internal and external threads engagement, with the gradually increase of torque wrench moment, inside and outside sealing cone from gap-contact progressively to pretension interference,
Metal to metal interference seal structure is finally constituted, by the support of double-layer sealing structure, the sealing of joint screw thread is greatly enhanced
Property, 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
Upper shackle is in use, as internal and external threads are engaged, the gradually increase of torque wrench moment, inside and outside torque shoulder from gap-contact progressively
To shoulder to shoulder interference, torque resistant effect can be played well when external force applies moment of torsion, joint screw thread junction is improved
The effect of incompressible, reaction torque, enhance concatenation ability.
As shown in Figure 2, Figure 3, Figure 4, external screw thread 9 and internal thread 5 use new partially trapezoidal tapered tread, the setting of its pitch P
For 2-3 teeth/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 plane clockwise direction angle as 6 °~7.5 ° between, be oriented to face angle (D) be set between 45 °,
The high G of thread is 3.8mm~4.2mm, because using big pitch, steep-taper, big carrying face angle design, 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 that product is used, and saves
About working time, improve operating efficiency.
As shown in figure 5, there is provided a kind of new welding structure, female adapter and external screw thread in a preferred embodiment
The solder side of structure and conduit, is 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 positioned, and bonding area is smaller, therefore the deformation that welding is produced is smaller, while
Site Welding is conducive to operate.
Described above is only preferred embodiment of the present utility model, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of offshore drill use riser pipe Special threading connector, it is characterised in that the joint include female adapter and
Male connection, two end connectors to Type of Welding with conduit respectively to be connected, outside the female adapter and male connection
Footpath is identical, and identical with the riser pipe outer tube diameter, and the male connection screw tip is provided with elastic sealing structure, bag
O-ring groove, O-ring seal are included, the O-ring seal is arranged in o-ring groove；The female adapter front end is set
There is the sealing inclined-plane being engaged with O-ring seal；The female adapter end sets with male connection front end and is engaged cone
Surface seal structure, the conical surface sealing structure includes internal thread sealing cone and external screw thread sealing cone.
2. a kind of offshore drill according to claim 1 uses riser pipe Special threading connector, it is characterised in that in described
Nipple is provided with lifting neck, internal thread, sealing inclined-plane, internal thread sealing cone, internal torque shoulder；In male connection
Provided with outer torque shoulder, external screw thread sealing cone, external screw thread, o-ring groove, as internal thread and external screw thread are engaged, internal thread
Sealing cone is interference fitted with external screw thread sealing cone；The internal torque shoulder of female adapter and the outer moment of torsion in male connection
Shoulder is interference fitted.
3. a kind of offshore drill according to claim 2 uses riser pipe Special threading connector, it is characterised in that external screw thread
New partially trapezoidal tapered tread is used with internal thread, its pitch P is set as 2-3 teeth/in, and taper is 1:5-1:6, thread crest is put down
Row is in tubing bus.
4. a kind of offshore drill according to claim 3 uses riser pipe Special threading connector, it is characterised in that described inclined
It is between 6 ° -7.5 °, to be oriented to face angle that the carrying face angle (Q) of trapezoidal tapered tread, which is set as with the clockwise direction angle of vertical plane,
(D) it is set within 45 °, the high G of thread is 3.8mm-4.2mm.
5. a kind of offshore drill according to claim 1 uses riser pipe Special threading connector, it is characterised in that internal thread
Joint surface is provided with more than 3 roads and lifts neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621005032.1U CN206368689U (en) | 2016-08-30 | 2016-08-30 | A kind of offshore drill uses riser pipe Special threading connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621005032.1U CN206368689U (en) | 2016-08-30 | 2016-08-30 | A kind of offshore drill uses riser pipe Special threading connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206368689U true CN206368689U (en) | 2017-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621005032.1U Active CN206368689U (en) | 2016-08-30 | 2016-08-30 | A kind of offshore drill uses riser pipe Special threading connector |
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| CN (1) | CN206368689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321755A (en) * | 2018-02-08 | 2018-07-24 | 珠海众盛电力科技有限公司 | Cable intermediate joint water proof fire retardant armored cassette |
-
2016
- 2016-08-30 CN CN201621005032.1U patent/CN206368689U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321755A (en) * | 2018-02-08 | 2018-07-24 | 珠海众盛电力科技有限公司 | Cable intermediate joint water proof fire retardant armored cassette |
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