CN209277827U - Tubing string centralising device - Google Patents
Tubing string centralising device Download PDFInfo
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- CN209277827U CN209277827U CN201821572714.XU CN201821572714U CN209277827U CN 209277827 U CN209277827 U CN 209277827U CN 201821572714 U CN201821572714 U CN 201821572714U CN 209277827 U CN209277827 U CN 209277827U
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- 238000007789 sealing Methods 0.000 claims description 75
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 49
- 239000007788 liquid Substances 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Abstract
The utility model provides a kind of tubing string centralising device, comprising: centering structure, centering structure, to lumen, the end of first tubing string and the end of second tubing string can be accommodated to lumen with cylindrical；Stretching structure is arranged on the outer wall to middle structure, and stretching structure can drive centering structure to shrink towards the axis to lumen, by first tubing string and second tubing string centering.By technical solution provided by the utility model, be able to solve in the prior art two tubing string inconveniences to the problems in.
Description
Technical field
The utility model relates to oil equipment technical fields, in particular to a kind of tubing string centralising device.
Background technique
In existing oil well and wellbore construction operation, in lower tubular column, the centering of two tubing strings needs worker or machine
Tool hand carries out righting, there is a problem of inconvenient for operation.
Utility model content
The utility model provides a kind of tubing string centralising device, to solve two tubing string inconvenience centerings in the prior art
Problem.
To solve the above-mentioned problems, the utility model provides a kind of tubing string centralising device, comprising: centering structure, centering
Structure, to lumen, the end of first tubing string and the end of second tubing string can be accommodated to lumen with cylindrical；Stretching structure,
It is arranged on the outer wall to middle structure, stretching structure can drive centering structure to shrink towards the axis to lumen, by first
Tubing string and second tubing string centering.
Further, centering structure includes: multiple clamping plates, and around being formed to lumen, stretching structure can drive multiple clamping plates
Multiple clamping plates are moved jointly close to or far from the axis to lumen.
Further, stretching structure includes: annular breathing set, and multiple clamping plates are provided at circumferentially spaced along annular breathing set
In annular breathing set, annular breathing set can be expanded and be shunk to drive multiple clamping plates mobile.
Further, stretching structure further include: the first cylinder, annular breathing are set in the first cylinder, annular breathing
The periphery of set and the first cylinder are tightly connected, and have first annular chamber between the inner wall of the first cylinder and annular breathing set, and first
Annular chamber can be passed through fluid so that annular breathing set expansion.
Further, stretching structure further include: the first pressure ring, the first pressure ring are connect with by annular breathing set with the first cylinder
Periphery be pressed on the inner wall of the first cylinder.
Further, stretching structure includes: annular breathing set, and centering structure setting is in annular breathing set, annular breathing
Set is for driving centering structure mobile；First cylinder, annular breathing are set in the first cylinder, and the first cylinder has drain
Hole, drainage hole are connected to the cavity of the first cylinder, with the liquid being discharged in first tubing string and/or second tubing string.
Further, drainage hole is multiple, and multiple drainage holes are distributed in the two sides of annular breathing set, and stretching structure also wraps
Include: the second cylinder is set in the outside of the first cylinder, has Packed liquid collecting cavity between the second cylinder and the first cylinder, multiple
Drainage hole is connected to liquid collecting cavity, and the second cylinder has the collection port being connected to liquid collecting cavity, and collection port is for collecting and being discharged collection
Liquid in sap cavity.
Further, tubing string centralising device further include: sealing structure is connect with stretching structure, and sealing structure is for sealing
The cavity of first cylinder.
Further, sealing structure is two, and one of sealing structure is used to seal one end and first of the first cylinder
Opening between tubing string, another one sealing structure are used to seal opening between the other end and second tubing string of the first cylinder
Mouthful.
Further, sealing structure includes: ring-shaped sealing sleeve, and ring-shaped sealing sleeve is connect with the end part seal of the first cylinder,
For abutting with first tubing string or second tubing string, ring-shaped sealing sleeve can be expanded and be shunk to change the inner wall in the hole of ring-shaped sealing sleeve
Become the size in the hole of ring-shaped sealing sleeve.
Further, sealing structure further include: third cylinder, ring packing are set in third cylinder, ring packing
The periphery of set and third cylinder are tightly connected, and have the second annular chamber between the inner wall and ring-shaped sealing sleeve of third cylinder, and second
Annular chamber can be passed through fluid so that ring-shaped sealing sleeve expands.
Further, sealing structure further include: the second pressure ring, the second pressure ring are connect with by ring-shaped sealing sleeve with third cylinder
Periphery be pressed on the inner wall of third cylinder.
Further, tubing string centralising device further include: heating device is connect with stretching structure.
Using the technical solution of the utility model, it is arranged in tubing string centralising device to middle structure and stretching structure, makes
Then used time, the cylinder that the end of the first tubing string for needing centering and second tubing string is penetrated centering structure are led to in lumen
It crosses stretching structure driving centering structure to shrink towards the axis to lumen, the first pipe can be squeezed by the inner wall of centering structure in this way
Column and second tubing string, so that the axis of first tubing string and the axis of second tubing string are close to each other to realize centering.By this reality
With novel technical solution, the centering of two tubing strings can be realized automatically by the movement of tubing string centralising device, it is easy to operate.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the tubing string centralising device of the embodiments of the present invention offer；
Fig. 2 shows the cross-sectional views of the tubing string centralising device in Fig. 1；
Fig. 3 shows schematic diagram of the tubing string centralising device in Fig. 1 when to middle first tubing string and second tubing string；
Fig. 4 shows schematic diagram of the tubing string centralising device in Fig. 1 when collecting and discharging liquid.
Wherein, the above drawings include the following reference numerals:
10, centering structure；11, clamping plate；20, stretching structure；21, annular breathing set；22, the first cylinder；221, drainage hole；
23, the first pressure ring；24, the second cylinder；241, collection port；25, end cap；26, connecting plate；27, delivery pipe；28, drain pipe；30,
Sealing structure；31, ring-shaped sealing sleeve；32, third cylinder；33, the second pressure ring；34, bracing ring；40, heating device；50, first
Tubing string；60, second tubing string.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
As shown in Figures 1 to 4, the embodiments of the present invention provide a kind of tubing string centralising device, comprising: centering structure
10, centering structure 10 has cylindrical to lumen, and end and the second tubing string 60 of first tubing string 50 can be accommodated to lumen
End；Stretching structure 20 is arranged on the outer wall to middle structure 10, and stretching structure 20 can drive centering structure 10 towards centering
The axis of chamber is shunk, by 60 centering of first tubing string 50 and second tubing string.
Using the technical solution of the present embodiment, in tubing string centralising device setting to middle structure 10 and stretching structure 20,
In use, the end of the first tubing string 50 for needing centering and second tubing string 60 is penetrated the cylinder of centering structure 10 to lumen
In, it then drives centering structure 10 to shrink towards the axis to lumen by stretching structure 20, centering structure 10 can be passed through in this way
Inner wall squeeze first tubing string 50 and second tubing string 60 so that the axis of first tubing string 50 and the axis of second tubing string 60 mutually lean on
Closely to realize centering.Technical solution through this embodiment can realize two by the movement of tubing string centralising device automatically
The centering of tubing string, it is easy to operate.
As shown in Fig. 2, centering structure 10 includes: multiple clamping plates 11, multiple clamping plates 11 are around formation to lumen, stretching structure
20 can drive multiple clamping plates 11 jointly close to or far from the axis to lumen.It in this way can be by the movements of multiple clamping plates 11 to right
The axis extruding of lumen and mobile first tubing string 50 and second tubing string 60, so that first tubing string 50 and the realization pair of second tubing string 60
In.In the present embodiment, clamping plate 11 can be set to arc panel, and multiple clamping plates 11 can be circumferentially around as one
A annulus, to be positioned to first tubing string 50 and second tubing string 60.In actual use, the diameter of the end of first tubing string 50
With possible two oil pipes that are different, such as needing to be connected through a screw thread of the diameter of the end of second tubing string 60, two parts of connection
Diameter it is different.Therefore, in order to realize centering, step surface can be set in clamping plate 11, to match with the size of two oil pipes.
Two oil pipes may be implemented so quickly and easily to connect to neutralizing, so as to improve production efficiency, reduce labor intensity and
Production cost.
In the present embodiment, stretching structure 20 includes: annular breathing set 21, week of multiple clamping plates 11 along annular breathing set 21
To being arranged at intervals in annular breathing set 21, annular breathing set 21 can be expanded and be shunk to drive multiple clamping plates 11 mobile.This
The multiple movements of clamping plates 11 of the expansion driven that sample can cover 21 by annular breathing, thus centering first tubing string 50 and second tubing string 60,
After first tubing string 50 and second tubing string 60 connect, multiple clamping plates 11 can be driven to move again by the contraction that annular breathing covers 21
It is dynamic, to be separated with first tubing string 50 and second tubing string 60.
As shown in Fig. 2, stretching structure 20 further include: the first cylinder 22, annular breathing set 21 are arranged in the first cylinder 22,
The periphery and the first cylinder 22 of annular breathing set 21 are tightly connected, and are had between the inner wall of the first cylinder 22 and annular breathing set 21
First annular chamber, first annular chamber can be passed through fluid so that annular 21 expansion of breathing set.It in this way can be by first annular chamber
Interior input fluid can make fluid from first annular intracavitary output to realize that annular is swollen to drive annular 21 expansion of breathing set
The contraction of contracting set 21, to drive centering structure 10 mobile.The mode that hydraulic-driven can be used realizes the dynamic of centering structure 10
Make, mode driving force is big at this time, convenient for control.As shown in Fig. 2, stretching structure 20 further includes delivery pipe 27, delivery pipe 27 and
One annular chamber connection, to input or export fluid.
In the present embodiment, stretching structure 20 further include: the first pressure ring 23, the first pressure ring 23 connect with the first cylinder 22 with
The periphery of annular breathing set 21 is pressed on the inner wall of the first cylinder 22.It can be guaranteed in this way by the first pressure ring 23 first annular
The sealing of chamber, to prevent fluid from leaking.
In the present embodiment, stretching structure 20 includes: annular breathing set 21, and the setting of centering structure 10 covers 21 in annular breathing
Interior, annular breathing set 21 is for driving centering structure 10 mobile；First cylinder 22, annular breathing set 21 are arranged in the first cylinder 22
Interior, the first cylinder 22 has drainage hole 221, and drainage hole 221 is connected to the cavity of the first cylinder 22, first tubing string 50 is discharged
And/or the liquid in second tubing string 60.To in containing the oil pipe of liquid or when other tubing strings, due to causing pouring down or forth for liquid,
It is easy contaminated equipment and environment.By above-mentioned setting, if containing liquid in tubing string, can when to middle operation centralized collection to first
In the cavity of cylinder 22, and designated position is discharged to by drainage hole 221.In the present embodiment, it is arranged on the first pressure ring 23
There is the through-hole being connected to drainage hole 221, in order to the collection and flowing of liquid.
As shown in Figures 2 to 4, drainage hole 221 is multiple, and multiple drainage holes 221 are distributed in the two sides of annular breathing set 21,
Stretching structure 20 further include: the second cylinder 24 is set in the outside of the first cylinder 22, between the second cylinder 24 and the first cylinder 22
Has Packed liquid collecting cavity, multiple drainage holes 221 are connected to liquid collecting cavity, and the second cylinder 24 has the collection being connected to liquid collecting cavity
Mouth 241, collection port 241 are used to collecting and being discharged the liquid in liquid collecting cavity.By multiple drainage holes 221 21 can be covered to annular breathing
Above and below liquid be collected simultaneously.Moreover, being convenient for by the second cylinder 24 of setting and collection port 241 by different positions
The liquid centralized collection set and discharge.
In the present embodiment, the position of collection port 241 is provided with connecting plate 26, can connected drainage pipe by connecting plate 26
28, in order to which liquid is transported to designated position.In the present embodiment, stretching structure 20 further includes end cap 25, and end cap 25 is arranged
It prevents from revealing to guarantee the leakproofness of liquid collecting cavity in the end of the first cylinder 22 and the second cylinder 24.End cap 25 can be with first
Cylinder 22 and the second cylinder 24 weld, such mode intensity height, good airproof performance, and easy to process.
In the present embodiment, tubing string centralising device further include: sealing structure 30 is connect, sealing structure with stretching structure 20
30 for sealing the cavity of the first cylinder 22.It can be prevented in first tubing string 50 or second tubing string 60 by the way that sealing structure 30 is arranged
Liquid pours down or forth external environment, to realize that centralized collection is handled.
In the present embodiment, sealing structure 30 is two, and one of sealing structure 30 is for sealing the first cylinder 22
Opening between one end and first tubing string 50, another one sealing structure 30 are used to seal the other end and the of the first cylinder 22
Opening between two tubing strings 60.It can guarantee the leakproofness of the cavity of the first cylinder 22 by two sealing structures 30 in this way.
Specifically, sealing structure 30 includes: ring-shaped sealing sleeve 31, the end part seal of ring-shaped sealing sleeve 31 and the first cylinder 22
Connection, for the inner wall in the hole of ring-shaped sealing sleeve 31 for abutting with first tubing string 50 or second tubing string 60, ring-shaped sealing sleeve 31 can
It expands and shrinks to change the size in the hole of ring-shaped sealing sleeve 31.Ring-shaped sealing sleeve 31 can increase ring-shaped sealing sleeve after shrinking
The size in 31 hole penetrates into centering structure 10 convenient for first tubing string 50 or second tubing string 60, then ring-shaped sealing sleeve in this way
31 can expand to reduce the size in the hole of ring-shaped sealing sleeve 31, and abut with first tubing string 50 or second tubing string 60, thus real
Now seal.In the present embodiment, ring-shaped sealing sleeve 31 is connect by the first pressure ring 23 with the end part seal of the first cylinder 22.
As shown in Fig. 2, sealing structure 30 further include: third cylinder 32, ring-shaped sealing sleeve 31 are arranged in third cylinder 32,
The periphery and third cylinder 32 of ring-shaped sealing sleeve 31 are tightly connected, and are had between the inner wall and ring-shaped sealing sleeve 31 of third cylinder 32
Second annular chamber, the second annular chamber can be passed through fluid so that ring-shaped sealing sleeve 31 expands.It in this way can be by the second annular chamber
Interior input fluid can be such that fluid exports out of second annular chamber to drive ring-shaped sealing sleeve 31 to expand to realize that annular is close
The contraction of big envelope 31, thus sealing or evacuation first tubing string 50 and second tubing string 60.The mode that hydraulic-driven can be used is realized
Sealing to tubing string, such mode good airproof performance, convenient for control.
In the present embodiment, sealing structure 30 further include: the second pressure ring 33, the second pressure ring 33 connect with third cylinder 32 with
The periphery of ring-shaped sealing sleeve 31 is pressed on the inner wall of third cylinder 32.It can guarantee the second annular by the second pressure ring 33 in this way
The sealing of chamber, to prevent fluid from leaking.In the present embodiment, the second pressure ring 33 is connect by bolt with end cap 25, in this way can be with
Increase the overall structural strength of device.
In the present embodiment, sealing structure 30 further includes bracing ring 34, can be to ring-shaped sealing sleeve 31 by bracing ring 34
It is supported, to prevent connection from loosening, improves leakproofness and reliability.
In outdoor work, in winter etc. in the low environment of temperature, residual liquid is easy to freeze in tubing string centralising device,
Influence normal use.In order to solve this problem, in the present embodiment, tubing string centralising device further include: heating device 40, and it is flexible
Structure 20 connects.Stretching structure 20 and other component can be heated by heating device 40 in this way, prevent from freezing, to guarantee
Normal use at low ambient temperatures.In the present embodiment, heating device 40 includes heating coil, and heating coil is circumferentially positioned at the
On two cylinders 24.Heating coil can be arranged on the second cylinder 24 by way of injection molding.
Using the technical solution of the present embodiment, in tubing string centralising device setting to middle structure 10 and stretching structure 20,
In use, the end of the first tubing string 50 for needing centering and second tubing string 60 is penetrated the cylinder of centering structure 10 to lumen
In, it then drives centering structure 10 to shrink towards the axis to lumen by stretching structure 20, centering structure 10 can be passed through in this way
Inner wall squeeze first tubing string 50 and second tubing string 60 so that the axis of first tubing string 50 and the axis of second tubing string 60 mutually lean on
Closely to realize centering.Technical solution through this embodiment can realize two by the movement of tubing string centralising device automatically
The centering of tubing string, it is easy to operate.And it can be realized and the concentration of residual liquid in first tubing string 50 or second tubing string 60 is received
Collection and processing.
In existing oil well and wellbore construction operation, in lower tubular column, two tubing string centerings need worker or profession
Manipulator carries out righting, increases the quantity of intensity of workers or wellhead equipment；In raising tubing string shackle, in tubing string
The well liquid (slurry liquid or oil liquid) of carrying can leak, and platform and surrounding enviroment is be easy to cause to pollute.
The tubing string centralising device is applied in drilling well and workover operation construction equipment and when carrying out lower tubular column operation, when two
Tubing string spacing is not more than 100mm, and the annular breathing set 21 in tubing string centralising device starts pressurising, annular 21 expansion of breathing set and band
Dynamic clamping plate 11 clamps lower tubular column, then clamps upper tubing string simultaneously on the basis of lower tubular column outer circle, can make the two tubing string errors of centralization not
Greater than 3mm.
When carrying out lift pipe string operation, after two tubing string shackles, tubing string centralising device is started to work, upper and lower two sealings
The ring-shaped sealing sleeve 31 of structure 30 is filled with gas, and ring-shaped sealing sleeve 31 expands and clamps tubing string, realizes the sealing of internal cavity；After
Continuous to promote upper tubing string, the well liquid in upper tubing string starts to overflow and full of internal cavity.Well liquid through on the first pressure ring 23 through-hole,
Drainage hole 221 on one cylinder 22 flows to the cavity between the first cylinder 22 and the second cylinder 24, and finally through 241 He of collection port
Connecting plate 26 flows to external drain pipe 28, realizes splashproof and the collection of well liquid.
Using the technical solution of the utility model, following technical effect may be implemented: two pneumostop structures 30 of configuration,
Prevent well liquid from splashing；Stretching structure 20 is hydraulically operated, another tubing string is clamped on the basis of a tubing string circumference, realizes tubing string
Automatic centering；Heating device 40 is disposed on the outside of stretching structure 20, the round-the-clock of device can be realized by preventing freezing phenomena
It is practical.The technical solution of the utility model realizes well liquid splash-proof diversion and two oil pipe alignment functions by gas, hydraulic power.This
The scheme of utility model is not in use, construction site needs to arrange excessive device, and well liquid being capable of effective splashproof and receipts
Collection, substantially increases the working environment on well head periphery.Well head can realize unmanned operation, improve the security performance of wellsite applications.
And the device volume is small, easy for installation.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
It should be noted that term used herein above is merely to describe specific 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 singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because
This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself
Wide is inside and outside.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of utility model protection range.
Claims (13)
1. a kind of tubing string centralising device characterized by comprising
Centering structure (10), the centering structure (10) have it is cylindrical to lumen, it is described that first pipe can be accommodated to lumen
The end of column (50) and the end of second tubing string (60)；
Stretching structure (20) is arranged in described pair on the outer wall of structure (10), and the stretching structure (20) can drive described
Centering structure (10) is shunk towards the axis to lumen, and the first tubing string (50) and the second tubing string (60) is right
In.
2. tubing string centralising device according to claim 1, which is characterized in that the centering structure (10) includes:
Multiple clamping plates (11), multiple clamping plates (11) are described to lumen around being formed, and the stretching structure (20) can drive
Multiple clamping plates (11) are jointly close to or far from the axis to lumen.
3. tubing string centralising device according to claim 2, which is characterized in that the stretching structure (20) includes:
Annular breathing set (21), multiple clamping plates (11) are provided at circumferentially spaced along annular breathing set (21) in the ring
In shape breathing set (21), the annular breathing set (21) can be expanded and be shunk to drive multiple clamping plates (11) mobile.
4. tubing string centralising device according to claim 3, which is characterized in that the stretching structure (20) further include:
First cylinder (22), the annular breathing set (21) are arranged in first cylinder (22), the annular breathing set
(21) periphery and first cylinder (22) is tightly connected, the inner wall of first cylinder (22) and the annular breathing set
(21) there is first annular chamber, the first annular chamber can be passed through fluid so that the annular breathing set (21) expands between.
5. tubing string centralising device according to claim 4, which is characterized in that the stretching structure (20) further include:
First pressure ring (23), first pressure ring (23) are connect with by the annular breathing set (21) with first cylinder (22)
Periphery be pressed on the inner wall of first cylinder (22).
6. tubing string centralising device according to claim 1, which is characterized in that the stretching structure (20) includes:
Annular breathing set (21), centering structure (10) setting is in the annular breathing set (21), the annular breathing set
(21) for driving the centering structure (10) mobile；
First cylinder (22), the annular breathing set (21) are arranged in first cylinder (22), first cylinder (22)
With drainage hole (221), the drainage hole (221) is connected to the cavity of first cylinder (22), first pipe is discharged
Liquid in column (50) and/or the second tubing string (60).
7. tubing string centralising device according to claim 6, which is characterized in that the drainage hole (221) is multiple, Duo Gesuo
State the two sides that drainage hole (221) is distributed in the annular breathing set (21), the stretching structure (20) further include:
Second cylinder (24) is set in the outside of first cylinder (22), second cylinder (24) and first cylinder
(22) has Packed liquid collecting cavity between, multiple drainage holes (221) are connected to the liquid collecting cavity, second cylinder
(24) there is the collection port (241) being connected to the liquid collecting cavity, the collection port (241) is for collecting and being discharged the liquid collecting cavity
In liquid.
8. tubing string centralising device according to claim 6, which is characterized in that the tubing string centralising device further include:
Sealing structure (30) is connect with the stretching structure (20), and the sealing structure (30) is for sealing first cylinder
(22) cavity.
9. tubing string centralising device according to claim 8, which is characterized in that the sealing structure (30) is two, wherein
One sealing structure (30) is used to seal opening between one end and the first tubing string (50) of first cylinder (22)
Mouthful, sealing structure (30) described in another one be used to seal first cylinder (22) the other end and the second tubing string
(60) opening between.
10. tubing string centralising device according to claim 8, which is characterized in that the sealing structure (30) includes:
Ring-shaped sealing sleeve (31), the ring-shaped sealing sleeve (31) connect with the end part seal of first cylinder (22), the ring
For the inner wall in the hole of shape sealing shroud (31) for abutting with the first tubing string (50) or the second tubing string (60), the annular is close
Big envelope (31) can be expanded and be shunk to change the size in the hole of the ring-shaped sealing sleeve (31).
11. tubing string centralising device according to claim 10, which is characterized in that the sealing structure (30) further include:
Third cylinder (32), ring-shaped sealing sleeve (31) setting is in the third cylinder (32), the ring-shaped sealing sleeve
(31) periphery and the third cylinder (32) is tightly connected, the inner wall and the ring-shaped sealing sleeve of the third cylinder (32)
(31) there is the second annular chamber, second annular chamber can be passed through fluid so that the ring-shaped sealing sleeve (31) expands between.
12. tubing string centralising device according to claim 11, which is characterized in that the sealing structure (30) further include:
Second pressure ring (33), second pressure ring (33) are connect with by the ring-shaped sealing sleeve (31) with the third cylinder (32)
Periphery be pressed on the inner wall of the third cylinder (32).
13. tubing string centralising device according to claim 1, which is characterized in that the tubing string centralising device further include:
Heating device (40) is connect with the stretching structure (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821572714.XU CN209277827U (en) | 2018-09-26 | 2018-09-26 | Tubing string centralising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821572714.XU CN209277827U (en) | 2018-09-26 | 2018-09-26 | Tubing string centralising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209277827U true CN209277827U (en) | 2019-08-20 |
Family
ID=67603781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821572714.XU Active CN209277827U (en) | 2018-09-26 | 2018-09-26 | Tubing string centralising device |
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| CN (1) | CN209277827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714670A (en) * | 2021-08-13 | 2021-11-30 | 中国地质科学院勘探技术研究所 | Vertical butt joint lowering method for expansion pipe |
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2018
- 2018-09-26 CN CN201821572714.XU patent/CN209277827U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714670A (en) * | 2021-08-13 | 2021-11-30 | 中国地质科学院勘探技术研究所 | Vertical butt joint lowering method for expansion pipe |
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Address after: 065300 Industrial Road 2, Chaobaihe Industrial Zone, Dachang County, Langfang City, Hebei Province Patentee after: Hebei Jinglong Intelligent Equipment Co.,Ltd. Address before: 065300 Industrial Road 2, Chaobaihe Industrial Zone, Dachang County, Langfang City, Hebei Province Patentee before: LANGFANG JINGLONG HEAVY MACHINERY Co.,Ltd. |
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