CN109931010A - Switching device, wellhead assembly and assemble method - Google Patents
Switching device, wellhead assembly and assemble method Download PDFInfo
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- CN109931010A CN109931010A CN201910300667.6A CN201910300667A CN109931010A CN 109931010 A CN109931010 A CN 109931010A CN 201910300667 A CN201910300667 A CN 201910300667A CN 109931010 A CN109931010 A CN 109931010A
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Abstract
This application involves natural gas and technical field of petroleum extraction, a kind of switching device, wellhead assembly and assemble method are provided.The switching device that embodiments herein provides, cooperation slidably and is rotatably sealed with transfer hole due to transfer tube, so that one of transfer tube is after the hole connection wait connect, the position of adjustable changeover mechanism enables other transfer tubes to be aligned and connect with other holes to be connected.Since transfer tube can be rotated, the modes such as transfer tube can be connected through a screw thread with hole to be connect realize sealed connection.In this way, the switching device that embodiments herein provides, can easily be connected to the well head main line and production pipeline of oil/gas well, without welding.In addition, the switching device that embodiments herein provides can be suitable for the different oil/gas well of various sizes, without individually customization.
Description
Technical field
This application involves natural gas and technical field of petroleum extraction more particularly to a kind of switching device, wellhead assembly and
The assemble method of wellhead assembly.
Background technique
In some cases, it is desirable to which an other adapter tube road, this other adapter tube are arranged on the production pipeline of oil/gas well well head
Lu Zaiyu well head main line connection, so that well head main line and production pipeline connect pipeline connection by this side.For example, please referring to
Fig. 1, Fig. 1 are the structural schematic diagram of oil/gas well well head 010 in the related technology, when needs are drained in oil/gas well using Plunger Lift
When technology, need to install additional well head execution pipeline 120 at the top of well head main line 110.Well head executes in pipeline 120 and is provided with blowout prevention
The equipment such as device, plunger catcher.Since well head main line 110 is connected to production pipeline 130, when plunger rises to well head master
When the link position of pipeline 110 and production pipeline 130, the pressure fluid below plunger enters production pipeline 130, below plunger
Pressure reduction eventually lead to plunger and cannot be introduced into well head and execute pipeline 120 so that the thrust that is subject to of plunger reduces.To understand
Certainly this problem is additionally arranged other adapter tube road 140.Side adapter tube 140 one end of road is connected on the threeway head 131 on production pipeline 130,
The other end is connected to well head and executes on through-flow piece 121 of 120 lower end of pipeline.Threeway head 131 and well will be located on production pipeline 130
Valve 132 between mouth main line 110 is closed.In this way, only after the plunger of uplink, which enters well head, executes pipeline 130, plunger
The fluid of lower section can be taken over road 140 by side and enter production pipeline 130, it is ensured that the normal work of plunger.But it is installing
When the adapter tube road 140 of side, but there are the following problems:
1. side adapter tube road 140 can only use bend pipe, and both ends can only be connected to through-flow piece of 121 Hes by welding
On threeway head 131.But using welding, there are risks in oil/gas well.If hydrogen sulfide content is high in oil/gas well, pole has
Commissure may be made to generate serious hydrogen embrittlement in a short time, and then lead to the accidents such as leakage, influence production safety.
2. in different oil/gas wells, through-flow piece 121 to the linear distance and threeway head 131 for producing pipeline 130 to well head
The linear distance of main line 110 has differences, this causes individually process other adapter tube road 140 for each well,
It is at high cost.
Summary of the invention
Embodiments herein provides a kind of switching device, can easily be connected to well head main line and the life of oil/gas well
Pipeline is produced, without welding and individually customizing.
Embodiments herein also provides a kind of wellhead assembly with above-mentioned switching device.
Embodiments herein also provides a kind of assemble method of above-mentioned wellhead assembly.
To achieve the above object, embodiments herein adopts the following technical scheme that
In a first aspect, the embodiment of the present application provides a kind of switching device, comprising:
Changeover mechanism, changeover mechanism have at least two interconnected transfer hole；
Transfer tube, transfer tube and transfer hole correspond, and one end of transfer tube is slidably and rotatably close with transfer hole
Envelope cooperation；And
Tight lock part, tight lock part and transfer tube correspond, tight lock part be removably attachable to changeover mechanism and transfer tube it
Between, and it is configured to the relative position of locking changeover mechanism and transfer tube.
The switching device that embodiments herein provides slidably and is rotatably matched with transfer hole sealing due to transfer tube
It closes, so that after one of transfer tube is connected with the hole wait connect, the position of adjustable changeover mechanism, so that other transfer tubes
It can be aligned and connect with other holes to be connected.Since transfer tube can be rotated, transfer tube can be logical with hole to be connect
It crosses the modes such as threaded connection and realizes sealed connection.In this way, the switching device that embodiments herein provides, can easily be connected to
The well head main line and production pipeline of oil/gas well, without welding.In addition, the switching device energy that embodiments herein provides
Enough it is suitable for the different oil/gas well of various sizes, without individually customization.
Further, changeover mechanism includes adapter, and transfer hole is provided on adapter；One end of transfer tube slidably and
In rotatable insertion transfer hole.
Further, one end in transfer tube insertion transfer hole is arranged with sealing ring.
Further, tight lock part includes ring flange and clamping screw；Threaded hole is offered on ring flange and around screw thread
Multiple fixed holes in hole；Multiple bolts hole are offered around transfer hole on adapter；Bolt hole and fixed hole correspond；
Transfer tube runs through threaded hole, and is threadedly coupled with threaded hole；Clamping screw is threadedly coupled through fixed hole and with bolt hole；Method
Blue disk is close to adapter.
Further, changeover mechanism include adapter and with the one-to-one coupling tube of transfer tube；It is offered on adapter
With the one-to-one location hole of coupling tube；Positioning hole is inserted into one end of coupling tube, and is threadedly coupled with location hole；Coupling tube
Inner space constitutes transfer hole；One end insertion transfer hole of transfer tube is set in coupling tube.
Further, sealing ring is provided between transfer tube and coupling tube.
Further, tight lock part is tubulose, and the inner peripheral surface of tight lock part includes outer locking face；Tight lock part be set in transfer tube and
The link position of coupling tube；Tight lock part is threadedly coupled with one of transfer tube and coupling tube；It is another in transfer tube and coupling tube
The outer peripheral surface of one includes internal locking face；Outer locking face and internal locking face against.
Further, further include be threadedly coupled with any one in transfer tube and coupling tube, and and tight lock part against it is anti-
DNA releaxed circular DNA.
Further, there are two orthogonal transfer hole for changeover mechanism tool.
Second aspect, embodiments herein also provide a kind of wellhead assembly, comprising:
Well head main line；
It is connected to the well head at the top of well head main line and executes pipeline, well head executes and offers the first hole on pipeline；
Side is connected to the well head production pipeline of well head main line, offers the second hole on well head production pipeline；And
Any one of the above switching device, the first hole and the second hole one transfer hole of equal face；
Wherein, it is removably connect with the transfer tube of the transfer hole in the first hole of face cooperation with the first hole, with face second
The transfer tube of the transfer hole cooperation in hole is removably connect with the second hole.
The wellhead assembly that embodiments herein provides, due to any one of the above switching device, so as to reality
Existing welding assembling, and switching device is general part, without individually customization.
The third aspect, embodiments herein also provide a kind of assemble method of above-mentioned wellhead assembly, comprising:
S01: sliding one of transfer tube to the direction of changeover mechanism, so that the transfer tube contracts relative to changeover mechanism
It returns；
S02: another transfer tube is removably connect with one of the first hole and the second hole；
S03: adjusting the relative position of transfer tube in changeover mechanism and step S02, makes transfer tube face in step S01 the
The other of one hole and the second hole；
S04: the transfer tube into the direction sliding step S01 far from changeover mechanism, so that the transfer tube is relative to switching
Mechanism is stretched out, and is removably connect with the other of the first hole and the second hole；
S05: installation locking portion keeps the relative position of changeover mechanism and transfer tube locked.
The assemble method that embodiments herein provides is not necessarily to welding procedure, easy to operate.
Detailed description of the invention
For the clearer technical solution for illustrating the embodiment of the present application, below to needing attached drawing to be used to make in embodiment
It is simple to introduce.It should be appreciated that the following drawings illustrates only the certain embodiments of the application, it is not construed as to the application model
The limitation enclosed.To those skilled in the art, without creative efforts, it can obtain according to these attached drawings
Obtain other accompanying drawings.
Fig. 1 is the structural schematic diagram of oil/gas well well head in the related technology；
Fig. 2 is the schematic diagram of the section structure for the switching device that the embodiment of the present application 1 provides；
Fig. 3 is the structural schematic diagram for the wellhead assembly that the embodiment of the present application 1 provides；
Fig. 4 is the schematic diagram of the section structure for the switching device that the embodiment of the present application 2 provides；
Fig. 5 is enlarged drawing at the A of Fig. 4；
Fig. 6 is enlarged drawing at the B of Fig. 4；
Fig. 7 is the structural schematic diagram for the wellhead assembly that the embodiment of the present application 2 provides.
In figure: 010- oil/gas well well head；110- well head main line；120- well head executes pipeline；121- is through-flow piece；130- is raw
Produce pipeline；131- threeway head；132- valve；Road is taken over by 140-；020- switching device；210- changeover mechanism；First turn of 210a-
Connect hole；The second transfer hole of 210b-；211- adapter；The first bolt hole of 212a-；The second bolt hole of 212b-；213a- First Transition
Pipe；The second coupling tube of 213b-；214a- first positioning hole；214b- second location hole；The first internal locking of 215a- face；215b-
Two internal locking faces；The first transfer tube of 220a-；The second transfer tube of 220b-；The first tight lock part of 230a-；The second tight lock part of 230b-；
231a- first flange disk；231b- second flange disk；The first clamping screw of 232a-；The second clamping screw of 232b-；233a- first
Threaded hole；The second threaded hole of 233b-；The first fixed hole of 234a-；The second fixed hole of 234b-；The first outer locking of 235a- face；
The second outer locking of 235b- face；The anti-DNA releaxed circular DNA of 240a- first；The anti-DNA releaxed circular DNA of 240b- second；030- wellhead assembly；310- well head supervisor
Road；320- well head executes pipeline；321- is through-flow piece；The first hole 321a-；330- produces pipeline；331- threeway head；331a- second
Hole；The first fixation hole of 400a-；The second fixation hole of 400b-.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with attached drawing, to the application
Technical solution in embodiment carries out clear, complete description.Obviously, described embodiment is that a part of the application is implemented
Example, instead of all the embodiments.
Therefore, the model of claimed the application is not intended to limit to the detailed description of embodiments herein below
It encloses, but is merely representative of the section Example of the application.Based on the embodiment in the application, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall in the protection scope of this application.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application and technology
Scheme can be combined with each other.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings or the invention product using when the orientation or positional relationship usually put, or
Person is the orientation or positional relationship that those skilled in the art usually understand, this kind of term is merely for convenience of description the application and Jian
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as the limitation to the application.
In the description of the present application, " oil/gas well " can refer to oil well, can also refer to the natural gas well.When " oil/gas well " is natural
When gas well, the natural gas well for acquiring conventional gas can be, be also possible to for acquiring Unconventional gas (shale
Gas, coal bed gas etc.) the natural gas well.
Embodiment 1:
The present embodiment provides a kind of switching devices 020.Fig. 2 is the cross-section structure of switching device 020 provided in this embodiment
Schematic diagram.Referring to figure 2., in the present embodiment, switching device 020 includes changeover mechanism 210, transfer tube and tight lock part.
As an example, changeover mechanism 210 provided in this embodiment is used to connect orthogonal two fixation holes, respectively
Internal thread the first fixation hole 400a and the second fixation hole 400b is set.First fixation hole 400a and the second fixation hole 400b phase
It is mutually vertical.Correspondingly, transfer hole, respectively the first transfer hole 210a and the second transfer hole 210b there are two the tools of changeover mechanism 210,
First transfer hole 210a and the second transfer hole 210b are mutually perpendicular to.Correspondingly, transfer tube is two, respectively the first transfer tube
220a and the second transfer tube 220b.One end of first transfer tube 220a slidably and is rotatably sealed with the first transfer hole 210a
Cooperation, the other end of the first transfer tube 220a are provided with external screw thread.One end of second transfer tube 220b is slidably and rotatably
It seals and cooperates with the second transfer hole 210b, the other end of the second transfer tube 220b is provided with external screw thread.Correspondingly, tight lock part is two
It is a, respectively the first tight lock part 230a and the second tight lock part 230b.First tight lock part 230a is removably attachable to changeover mechanism
Both 210 and first between transfer tube 220a, for locking the relative position of changeover mechanism 210 and the first transfer tube 220a, make
It can not relative motion.Second tight lock part 230b is removably attachable between changeover mechanism 210 and the second transfer tube 220b, is used for
The relative position for locking changeover mechanism 210 and the second transfer tube 220b makes the two can not relative motion.
It should be understood that in other embodiments, the quantity and angle of transfer hole can be according to fixation holes to be connected
Quantity and angle set.Correspondingly, the quantity of transfer tube and tight lock part is also determined according to the quantity of transfer hole.
When using changeover mechanism 210 provided in this embodiment connection the first fixation hole 400a and the second fixation hole 400b,
Second transfer tube 220b is directed at the second fixation hole 400b, the second transfer tube 220b is inserted into the second fixation hole 400b, rotation
Second transfer tube 220b is threadedly coupled it with the second fixation hole 400b.By the first transfer tube 220a to close to changeover mechanism 210
Direction sliding, the length for making the first transfer tube 220a stretch out changeover mechanism 210 becomes smaller, rotates along the second transfer tube 220b and sliding
Turn connection mechanism 210 makes the first transfer tube 220a be directed at the first fixation hole 400a.It is extracted out along the direction far from changeover mechanism 210
First transfer tube 220a, make the first transfer tube 220a be inserted into the first fixation hole 400a in, rotation the first transfer tube 220a make its with
First fixation hole 400a is threadedly coupled.First tight lock part 230a and the second tight lock part 230b are installed, divided with locking changeover mechanism 210
Not with the relative position of the first transfer tube 220a and the second transfer tube 220b, the first transfer tube 220a and the second transfer tube are prevented
220b is moved relative to changeover mechanism 210.
As above, that is, it realizes and connects two fixation holes using switching device 020.Without welding in installation process, and work as
When the relative position of two fixation holes changes, same switching device 020 can still be connected two fixation holes, thus
Switching device 020 is customized without two fixation holes for different relative positions.
In the present embodiment, changeover mechanism 210 includes rectangular adapter 211.The switching of first transfer hole 210a and second
Hole 210b is provided on 211 orthogonal two faces of adapter.One end of first transfer tube 220a is slidably and rotatably
It is inserted into the first transfer hole 210a, the second transfer hole 210b slidably and is rotatably inserted into one end of the second transfer tube 220b
In.In order to realize the sealing between the first transfer tube 220a and the first transfer hole 210a, first is inserted into the first transfer tube 220a
One end of transfer hole 210a is arranged with sealing ring.It is close between the second transfer tube 220b and the second transfer hole 210b in order to realize
Envelope is arranged with sealing ring in one end that the second transfer tube 220b is inserted into the second transfer hole 210b.
In the present embodiment, tight lock part includes ring flange and clamping screw；Threaded hole is offered on ring flange and is surrounded
Multiple fixed holes of threaded hole；Multiple bolts hole are offered around transfer hole on adapter 211；Bolt hole and fixed hole one
One is corresponding；Transfer tube runs through threaded hole, and is threadedly coupled with threaded hole；Clamping screw through fixed hole and with bolt hole screw thread
Connection；Ring flange is close to adapter 211.
Specifically, the first tight lock part 230a includes first flange disk 231a and the first clamping screw 232a.First flange disk
The first threaded hole 233a and multiple first fixed hole 234a around the first threaded hole 233a is offered on 231a.Adapter
Multiple first bolt hole 212a are offered around the first transfer hole 210a on 211.First bolt hole 212a and the first fixed hole
234a is corresponded.The outer peripheral surface of first transfer tube 220a is provided with one section of external screw thread.First transfer tube 220a runs through the first spiral shell
Pit 233a, and be threadedly coupled with the first threaded hole 233a.First clamping screw 232a through the first fixed hole 234a and with
First bolt hole 212a is threadedly coupled.First flange disk 231a is close to adapter 211.The first clamping screw 232a is unclamped, is rotated
First flange disk 231a moves it along the direction far from adapter 211 until being detached from the outer spiral shell of the first transfer tube 220a outer peripheral surface
Line, so i.e. realize by the first tight lock part 230a dismantle, at this time i.e. slidably with rotation the first transfer tube 220a.It is needing to install
When the first tight lock part 230a, first flange disk 231a is rotated, makes first flange disk 231a and the first transfer tube 220a outer peripheral surface
External screw thread is with merging to the movement of adapter 211, until first flange disk 231a is close to adapter 211 and the first fixed hole
234a and the first bolt hole 212a face.First clamping screw 232a is then installed, the first tight lock part 230a is so completed
Installation so that the relative position of the first transfer tube 220a and changeover mechanism 210 is locked.
Second tight lock part 230b includes second flange disk 231b and the second clamping screw 232b.It is opened on second flange disk 231b
Equipped with the second threaded hole 233b and around multiple second fixed hole 234b of the second threaded hole 233b.It is enclosed on adapter 211
Multiple second bolt hole 212b are offered around the second transfer hole 210b.Second bolt hole 212b and the second fixed hole 234b are one by one
It is corresponding.The outer peripheral surface of second transfer tube 220b is provided with one section of external screw thread.Second transfer tube 220b runs through the second threaded hole 233b,
And it is threadedly coupled with the second threaded hole 233b.Second clamping screw 232b through the second fixed hole 234b and with the second bolt hole
212b is threadedly coupled.Second flange disk 231b is close to adapter 211.The second clamping screw 232b is unclamped, second flange disk is rotated
231b moves it along the direction far from adapter 211 until being detached from the external screw thread of the second transfer tube 220b outer peripheral surface, so i.e.
Realize by the second tight lock part 230b dismantle, at this time i.e. slidably with rotation the second transfer tube 220b.Needing to install the second locking
When portion 230b, second flange disk 231b is rotated, second flange disk 231b and the external screw thread of the second transfer tube 220b outer peripheral surface are matched
Merge and moved to adapter 211, until second flange disk 231b is close to adapter 211 and the second fixed hole 234b and second
Bolt hole 212b face.Second clamping screw 232b is then installed, the installation of the second tight lock part 230b is so completed, so that
The relative position of second transfer tube 220b and changeover mechanism 210 is locked.
Switching device 020 provided in this embodiment is suitable for being connected to the well head main line 310 and production pipeline of oil/gas well
330.Fig. 3 is the structural schematic diagram of wellhead assembly 030 provided in this embodiment.Referring to figure 3., wellhead assembly 030 includes well head
Main line 310, well head execute pipeline 320 and production pipeline 330.Well head executes the top that pipeline 320 is fixed on well head main line 310
End.Production pipeline 330 is located at the lower section of well head execution pipeline 320 and side is connected to well head main line 310.Well head executes pipeline
320 lower end is provided with through-flow piece 321.Connection well head is offered on through-flow piece 321 executes pipeline 320 and the first extraneous hole
321a.Threeway head 331 is provided on production pipeline 330.Connection production pipeline 330 and the external world are provided on threeway head 331
Second hole 331a.First hole 321a and the second hole 331a are mutually perpendicular to, the first hole 321a be open to the left, the second hole 331a be open to
On.First hole 321a and the second hole 331a is threaded hole.Wellhead assembly 030 provided in this embodiment further includes switching device
020, the first hole 321a and the second hole 331a are connected to by switching device 020.
The present embodiment also provides a kind of assemble method of wellhead assembly 030, comprising:
S01: one of transfer tube is slided to the direction of changeover mechanism 210, so that the transfer tube is relative to changeover mechanism
210 structures retract.
Specifically, the first transfer tube 220a is slided to the direction close to changeover mechanism 210, stretch the first transfer tube 220a
The length of changeover mechanism 210 becomes smaller out.
S02: one of another transfer tube and first hole 321a and the second hole 331a are removably connect.
Specifically, the second transfer tube 220b is directed at the second hole 331a, the second transfer tube 220b is inserted into the second hole 331a
Interior, the second transfer tube 220b of rotation is threadedly coupled it with the second hole 331a.
S03: adjusting the relative position of transfer tube in changeover mechanism 210 and step S02, makes transfer tube in step S01 just
To the other of the first hole 321a and the second hole 331a.
Specifically, changeover mechanism 210 is rotated and slided along the second transfer tube 220b, the first transfer tube 220a is made to be directed at second
Hole 331a.
S04: the first transfer tube 220a is slided to the direction far from changeover mechanism 210, so that the transfer tube is relative to switching
Mechanism 210 is stretched out, and is removably connect with the other of the first hole 321a and the second hole 331a.
Specifically, extracting the first transfer tube 220a out along the direction far from changeover mechanism 210, it is inserted into the first transfer tube 220a
In first hole 321a, the first transfer tube 220a of rotation is threadedly coupled it with the first hole 321a.
S05: installation locking portion keeps the relative position of changeover mechanism 210 and transfer tube locked.
Specifically, installation the first tight lock part 230a and the second tight lock part 230b, to lock changeover mechanism 210 respectively with first
The relative position of transfer tube 220a and the second transfer tube 220b, prevent the first transfer tube 220a and the second transfer tube 220b relative to
Changeover mechanism 210 moves.The installation method of first tight lock part 230a and the second tight lock part 230b are referred to above
Description, repeats no more at this time.
It should be pointed out that above-mentioned steps S01 and step S02 can be interchanged.
It in summary it can be seen, it can be under the premise of not welding, by well head using switching device 020 provided in this embodiment
Main line 310 is connected to production pipeline 330.In this way, the case where effectively preventing welding bring weld seam hydrogen embrittlement generation, Neng Gou great
The big safety for improving oil/gas well.In addition, switching device 020 provided in this embodiment can be suitable for the different oil of well head size
Gas well (i.e. the relative position of the first hole 321a and the second hole 331a different and oil/gas well), does not need respectively that well head size is not
Same oil/gas well individually customizes, and greatly reduces cost.
Embodiment 2:
Referring to figure 4., the present embodiment provides a kind of switching devices 020, compared with Example 1, provided in this embodiment turn
Connection device 020 has following difference.
In the present embodiment, changeover mechanism 210 include adapter 211 and with the one-to-one coupling tube of transfer tube.Specifically
, including two coupling tubes, respectively First Transition pipe 213a and the second coupling tube 213b.It is offered on adapter 211 and mistake
Cross the one-to-one location hole of pipe, first positioning hole 214a respectively corresponding with First Transition pipe 213a and with the second transition
The corresponding second location hole 214b of pipe 213b.In one end insertion first positioning hole 214a of First Transition pipe 213a, and with first
Location hole 214a is threadedly coupled.In one end insertion second location hole 214b of second coupling tube 213b, and and second location hole
214b is threadedly coupled.The inner space of coupling tube constitutes transfer hole, i.e. the inner space of First Transition pipe 213a constitutes first turn
Hole 210a is met, the inner space of the second coupling tube 213b constitutes the second transfer hole 210b.One end of first transfer tube 220a can be slided
In dynamic and rotatable insertion First Transition pipe 213a, one end of the second transfer tube 220b slidably and is rotatably inserted into second
In coupling tube 213b.It should be understood that in other embodiments, one end of the first transfer tube 220a can also slidably and can turn
Dynamic is set on First Transition pipe 213a, and one end of the second transfer tube 220b can also slidably and rotatably be arranged second
On coupling tube 213b.In order to realize the sealing between the first transfer tube 220a and the first transfer hole 210a, in the present embodiment,
Sealing ring is provided between first transfer tube 220a and First Transition pipe 213a.In order to realize the second transfer tube 220b and second turn
The sealing between the 210b of hole is connect, in the present embodiment, is provided between the second transfer tube 220b and the second coupling tube 213b close
Seal.
In the present embodiment, tight lock part is tubulose, and the inner peripheral surface of tight lock part includes outer locking face；Tight lock part is set in switching
The link position of pipe and coupling tube；Tight lock part is threadedly coupled with one of transfer tube and coupling tube；In transfer tube and coupling tube
The outer peripheral surface of another one include internal locking face；Outer locking face and internal locking face against.Referring to figure 5. and Fig. 6, specifically,
One tight lock part 230a is tubulose, and the inner peripheral surface of the first tight lock part 230a includes the first outer locking face 235a of taper；First locking
Portion 230a is set in the link position of the first transfer tube 220a and First Transition pipe 213a.The switching of first tight lock part 230a and first
Pipe 220a is threadedly coupled；The outer peripheral surface of First Transition pipe 213a includes the first internal locking compatible with the first outer locking face 235a
Face 215a.First outer locking face 235a and the first internal locking face 215a against.Second tight lock part 230b is tubulose, the second tight lock part
The inner peripheral surface of 230b includes the second outer locking face 235b of taper；Second tight lock part 230b is set in the second transfer tube 220b and
The link position of two coupling tube 213b.Second tight lock part 230b is threadedly coupled with the second transfer tube 220b；Second coupling tube 213b
Outer peripheral surface include and the second outer locking face 235b compatible second internal locking face 215b.Second outer locking face 235b and second
Internal locking face 215b against.
In the present embodiment, switching device 020 further include be threadedly coupled with any one in transfer tube and coupling tube, and with
Tight lock part against anti-DNA releaxed circular DNA.Specifically, including two anti-DNA releaxed circular DNAs, the respectively first anti-anti- DNA releaxed circular DNA of DNA releaxed circular DNA 240a and second
240b.First anti-DNA releaxed circular DNA 240a is set on First Transition pipe 213a, the first anti-DNA releaxed circular DNA 240a and First Transition pipe 213a screw thread
Connection, and it is resisted against the end of the first tight lock part 230a, play anti-loose effect.Second anti-DNA releaxed circular DNA 240b is set in the second coupling tube
On 213b, the second anti-DNA releaxed circular DNA 240b is threadedly coupled with the second coupling tube 213b, and is resisted against the end of the second tight lock part 230b, is risen
Anti-loose effect.
When needing to dismantle the first tight lock part 230a, the first anti-DNA releaxed circular DNA 240a is rotated, the first tight lock part 230a is made it away from.
The first tight lock part 230a is rotated, the threaded connection with the first transfer tube 220a is disengaged it from.At this point, the first tight lock part 230a is split
It unloads, the first transfer tube 220a can be flexible along First Transition pipe 213a, can also rotate.When needing to install the first tight lock part 230a
When, the first tight lock part 230a is rotated, is threadedly coupled it with the first transfer tube 220a, until the first outer locking face 235a and first
Internal locking face 215a against.The first anti-DNA releaxed circular DNA 240a is rotated, against the end of the first tight lock part 230a.At this point, the first lock
Tight portion 230a is mounted, and the relative position of the first transfer tube 220a and changeover mechanism 210 is locked.When needing to dismantle the second locking
When portion 230b, the second anti-DNA releaxed circular DNA 240b is rotated, the second tight lock part 230b is made it away from.The second tight lock part 230b is rotated, keeps it de-
From the threaded connection with the second transfer tube 220b.At this point, the second tight lock part 230b is disassembled, the second transfer tube 220b can be along
Two coupling tube 213b are flexible, can also rotate.When needing to install the second tight lock part 230b, the second tight lock part 230b is rotated, is made
It is threadedly coupled with the second transfer tube 220b, until the second outer locking face 235b and the second internal locking face 215b against.Rotation the
Two anti-DNA releaxed circular DNA 240b, against the end of the second tight lock part 230b.At this point, the second tight lock part 230b is mounted, the second switching
The relative position of pipe 220b and changeover mechanism 210 is locked.
Fig. 7 is please referred to, the present embodiment also provides a kind of wellhead assembly 030, and which employs switching provided in this embodiment dresses
020 is set, remaining structure is same as Example 1, and details are not described herein again.
The present embodiment also provides a kind of assemble method of wellhead assembly 030, the basic phase recorded in step and embodiment 1
Together, the difference is that, the mounting means of the first tight lock part 230a and the second tight lock part 230b are different.First tight lock part 230a and
The mounting means of second tight lock part 230b is referred to the description of the present embodiment, and details are not described herein again.
The foregoing is merely the section Examples of the application, are not intended to limit this application, for art technology
For personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (11)
1. switching device characterized by comprising
Changeover mechanism, the changeover mechanism have at least two interconnected transfer hole；
Transfer tube, the transfer tube and the transfer hole correspond, one end of the transfer tube slidably and rotatably with
The transfer hole sealing cooperation；And
Tight lock part, the tight lock part and the transfer tube correspond, and the tight lock part is removably attachable to the switching machine
Between structure and the transfer tube, and it is configured to lock the relative position of the changeover mechanism and the transfer tube.
2. switching device according to claim 1, it is characterised in that:
The changeover mechanism includes adapter, and the transfer hole is provided on the adapter；
One end of the transfer tube slidably and is rotatably inserted into the transfer hole.
3. switching device according to claim 2, it is characterised in that:
One end that the transfer tube is inserted into the transfer hole is arranged with sealing ring.
4. switching device according to claim 2, it is characterised in that:
The tight lock part includes ring flange and clamping screw；Threaded hole is offered on the ring flange and around the threaded hole
Multiple fixed holes；Multiple bolts hole are offered around the transfer hole on the adapter；The bolt hole with it is described solid
Determine through-hole one-to-one correspondence；The transfer tube runs through the threaded hole, and is threadedly coupled with the threaded hole；The clamping screw passes through
It wears the fixed hole and is threadedly coupled with the bolt hole；The ring flange is close to the adapter.
5. switching device according to claim 1, it is characterised in that:
The changeover mechanism include adapter and with the one-to-one coupling tube of the transfer tube；
It is offered on the adapter and the one-to-one location hole of the coupling tube；One end insertion of the coupling tube is described fixed
In the hole of position, and it is threadedly coupled with the location hole；The inner space of the coupling tube constitutes the transfer hole；
One end of the transfer tube is inserted into the transfer hole or is set in the coupling tube.
6. switching device according to claim 5, it is characterised in that:
Sealing ring is provided between the transfer tube and the coupling tube.
7. switching device according to claim 5, it is characterised in that:
The tight lock part is tubulose, and the inner peripheral surface of the tight lock part includes outer locking face；The tight lock part is set in the switching
The link position of pipe and the coupling tube；The tight lock part is threadedly coupled with one of the transfer tube and the coupling tube；
The outer peripheral surface of the other of the transfer tube and the coupling tube includes internal locking face；The outer locking face and the internal locking
Face against.
8. switching device according to claim 7, it is characterised in that:
Further include be threadedly coupled with any one in the transfer tube and the coupling tube, and with the tight lock part against it is locking
Ring.
9. wellhead assembly described in any one of -8 according to claim 1, it is characterised in that:
There are two the orthogonal transfer hole for the changeover mechanism tool.
10. wellhead assembly characterized by comprising
Well head main line；
It is connected to the well head at the top of the well head main line and executes pipeline, the well head executes and offers the first hole on pipeline；
Side is connected to the well head production pipeline of the well head main line, offers the second hole on the well head production pipeline；And
Switching device described in any one of claim 1-9, described in equal face one, first hole and second hole
Transfer hole；
Wherein, the transfer tube with the cooperation of the transfer hole in the first hole described in face removably connects with first hole
It connects, the transfer tube cooperated with the transfer hole in the second hole described in face is removably connect with second hole.
11. the assemble method of wellhead assembly described in any one of claim 10 characterized by comprising
One of them described transfer tube is slided in the direction of S01: Xiang Suoshu changeover mechanism, so that the transfer tube is relative to the switching
Mechanism retracts；
S02: one of another described transfer tube and described first hole and second hole are removably connect；
S03: the relative position of transfer tube described in the changeover mechanism and step S02 is adjusted, the switching in step S01 is made
The other of first hole described in pipe face and second hole；
S04: to far from the changeover mechanism direction sliding step S01 in the transfer tube so that the transfer tube relative to
The changeover mechanism stretches out, and removably connect with the other of first hole and second hole；
S05: installing the tight lock part, keeps the relative position of the changeover mechanism and the transfer tube locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300667.6A CN109931010A (en) | 2019-04-15 | 2019-04-15 | Switching device, wellhead assembly and assemble method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300667.6A CN109931010A (en) | 2019-04-15 | 2019-04-15 | Switching device, wellhead assembly and assemble method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109931010A true CN109931010A (en) | 2019-06-25 |
Family
ID=66990118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910300667.6A Pending CN109931010A (en) | 2019-04-15 | 2019-04-15 | Switching device, wellhead assembly and assemble method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109931010A (en) |
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