CN209510605U - A kind of plunger and oil and gas well structure - Google Patents
A kind of plunger and oil and gas well structure Download PDFInfo
- Publication number
- CN209510605U CN209510605U CN201920162110.6U CN201920162110U CN209510605U CN 209510605 U CN209510605 U CN 209510605U CN 201920162110 U CN201920162110 U CN 201920162110U CN 209510605 U CN209510605 U CN 209510605U
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- Prior art keywords
- confined planes
- locating part
- plunger
- core pipe
- actuated piece
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- 238000012856 packing Methods 0.000 claims abstract description 35
- 230000002093 peripheral effect Effects 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 abstract description 18
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000008602 contraction Effects 0.000 abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 3
- 239000003345 natural gas Substances 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 230000035939 shock Effects 0.000 description 6
- 239000002343 natural gas well Substances 0.000 description 5
- 241000521257 Hydrops Species 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance 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
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to natural gas and technical field of petroleum extraction, a kind of plunger and oil and gas well structure are disclosed.Plunger provided by the embodiment of the utility model, by the way that the first confined planes, the second confined planes and transition face are arranged on locating part, so that the working condition of plunger is adjusted between lifting state and contraction state during locating part moves between the first position and the second position.When plunger is in contraction state, effective sealing can not be formed between piece and hoistway inner peripheral surface by insulating, and reduce the friction between packing piece and hoistway inner peripheral surface, plunger can fast downlink to shaft bottom, overcome the deficiencies in the prior art.In addition, the first confined planes and the second confined planes are connected by transition face, so that the conversion of the working condition of plunger is more easier reliably.
Description
Technical field
The utility model relates to natural gas and technical field of petroleum extraction more particularly to a kind of plungers and oil and gas well structure.
Background technique
In the natural gas well or oil well (being referred to as oil/gas well) development process, for the yield for improving natural gas or petroleum,
It needs the hydrops in shaft bottom being lifted to ground.
Plunger has obtained wider utilization in the development process of the natural gas well or oil well as a kind of lifting equipment.It is existing
Some plungers include multiple packing pieces, these packing pieces contact friction with hoistway inner wall always under the action of the elastic member, are formed
Sealing.Under closing well state, plunger comes downwards to shaft bottom.When driving a well, the pressure that the fluid below plunger generates is driven on plunger
The hydrops above plunger is discharged when plunger goes upward to well head by Plunger Lift for row, the liquid above plunger.
Existing plunger has the following problems:
Sealing is formed since packing piece contacts friction with hoistway inner wall always under the action of the elastic member, causes plunger under
By very big resistance when row.This makes plunger need to get to shaft bottom by the downlink of long period, it could even be possible to making
Shaft bottom can not be come downwards to by obtaining plunger.
Utility model content
The purpose of this utility model is to provide a kind of plungers, and packing piece can be made radially-inwardly to shrink in downlink,
Packing piece and the continuous contact friction of hoistway inner wall are avoided, friction in down stroke is reduced, reduces the time that plunger comes downwards to shaft bottom.
Another of the utility model is designed to provide a kind of oil and gas well structure comprising above-mentioned plunger.
The embodiments of the present invention are achieved through the following technical solutions:
A kind of plunger, comprising: core pipe；It is arranged around core pipe, and is configured to the multiple packing pieces radially reciprocated；
Packing piece is acted on, and is configured to make to insulate the dynamic clamping head and quiet clamping head that piece has the trend moved radially outwards；Radially may be used
It is movable to run through core pipe, and one end is connect with packing piece, the other end is located at the guide part in core pipe；It is arranged in core pipe, and with
The stressed member of guide part connection；Positioned at the locating part between stressed member and core pipe inner wall；And it is connect with locating part, and by structure
Make the actuated piece to drive locating part to move between the first position and the second position along axial direction；
Wherein, the first limit that packing piece radial outward movement is limited for contacting with stressed member is provided on locating part
Face, transition face and the second confined planes；The direction of first confined planes, transition face and the second confined planes along the second position to first position
It is sequentially connected；Radial distance of the radial distance of first confined planes and core pipe inner wall less than the second confined planes and core pipe inner wall；Limit
Position part, which is configured to the first confined planes at first position, to be contacted with stressed member, and at the second position, the second confined planes can
It is contacted with stressed member；
Alternatively, being provided with the second limit for limiting packing piece radial outward movement for contacting with locating part on stressed member
Face, transition face and the first confined planes；The direction of second confined planes, transition face and the first confined planes along the second position to first position
It is sequentially connected；The radial distance of first confined planes and core pipe inner wall is greater than the radial distance of the second confined planes and core pipe inner wall, limit
Position part is configured to connect with the second confined planes with the first limit face contact at the second position at first position
Touching.
Further, actuated piece is arranged in core pipe, and actuated piece is configured to move axially in reciprocal fashion；Actuated piece includes phase
Pair first end and second end；Along the direction of first end to second end, locating part moves to the second position from first position；Along
Two ends to the direction of first end, locating part moves to first position from the second position；When locating part is located at first position, actuating
Part is configured at least first end and is located at outside core pipe, to receive the driving force along the direction of first end to second end；Work as locating part
When positioned at the second position, actuated piece is configured at least second end and is located at outside core pipe, to receive along the side of second end to first end
To driving force.
Further, the part that is activated that locating part can be axially moveable runs through；It is arranged at intervals on actuated piece close to first
Second supporting element of first supporting element at end and close second end, locating part is between the first supporting element and the second supporting element.
Further, plunger further includes the resilient snubber being arranged between the first supporting element and locating part, elastic buffer
Part is configured to the trend for having locating part to the second support movements.
Further, resilient snubber is the spring for being sheathed on actuated piece.
Further, locating part includes the position-limiting drum of tubular, and along the direction of the second position to first position, position-limiting drum is successively
Including first segment, changeover portion and second segment；The internal diameter of first segment is greater than the internal diameter of second segment；Along the second position to first position
The internal diameter in direction, changeover portion is gradually reduced；First confined planes are the inner peripheral surface of first segment, and transition face is the inner peripheral surface of changeover portion,
Second confined planes are the inner peripheral surface of second segment；The item of the direction extension along the second position to first position is also provided on position-limiting drum
Shape hole；Guide part runs through strip-shaped hole；Stressed member is located in position-limiting drum.
Further, stressed member is to be located at one end in core pipe by guide part to project radially outward the ring-type formed.
Further, plunger further includes the holding mechanism with actuated piece cooperation；Holding mechanism is configured in locating part position
Actuated piece is maintained into current location when first position, and actuated piece is maintained when locating part is located at the second position and is worked as
Front position.
Further, the radial distance of the first confined planes and the second confined planes is 0.5mm-2.5mm.
A kind of oil and gas well structure, comprising: well head pipeline；With the hoistway of well head piping connection；And any one of the above column
Plug；
Wherein, plunger is configured to after being advanced into well head pipeline, and actuated piece drives locating part to move to the second position；Column
After plug is configured to the predeterminated position that downlink reaches in hoistway, actuated piece drive states locating part and moves to first position.
The technical solution of the utility model is at least had the following advantages and beneficial effects:
Plunger provided by the embodiment of the utility model, by be arranged on locating part the first confined planes, the second confined planes and
Transition face, so that lifting the working condition of plunger during locating part moves between the first position and the second position
It is adjusted between state and contraction state.When plunger is in contraction state, insulating can not be formed between piece and hoistway inner peripheral surface
Effect sealing, reduce packing piece and hoistway inner peripheral surface between friction, plunger can fast downlink to shaft bottom, overcome existing skill
The deficiency of art.In addition, the first confined planes and the second confined planes are connected by transition face, so that the conversion of the working condition of plunger is more
Add and is easy reliably.
Detailed description of the invention
It is to be used attached to being needed in embodiment below for the clearer technical solution for illustrating the utility model embodiment
Figure is briefly described.It should be appreciated that the following drawings illustrates only the certain embodiments of the utility model, it is not construed as pair
The limitation of the scope of the utility model.To those skilled in the art, without creative efforts, Neng Gougen
Other accompanying drawings are obtained according to these attached drawings.
Fig. 1 is the schematic diagram of the section structure of the plunger that provides of the utility model embodiment 1 under lifting state；
Fig. 2 is the schematic diagram of the section structure of the plunger that provides of the utility model embodiment 1 in a contracted state；
Fig. 3 is the structural schematic diagram of locating part in the plunger that the utility model embodiment 1 provides；
Fig. 4 is the schematic diagram of the section structure of locating part in the plunger that the utility model embodiment 1 provides；
Fig. 5 is enlarged drawing at the A of Fig. 1；
Fig. 6 is the structural schematic diagram for the oil and gas well structure that utility model the present embodiment 2 provides.
In figure: 01- oil and gas well structure；010- plunger；110- core pipe；111- through hole；Locating slot in 112-；120- packing
Piece；121- threaded hole；The outer locating slot of 122-；130- dynamic clamping head and quiet clamping head；140- guide part；150- stressed member；160- locating part；
The first confined planes of 161-；The second confined planes of 162-；163- transition face；164- position-limiting drum；164a- first segment；164b- second segment；
164c- changeover portion；165- strip-shaped hole；166- top plate；170- actuated piece；170a- first end；170b- second end；171- first
Support member；The second supporting element of 172-；173- resilient snubber；180- upper plug head；The upper through hole of 180a-；190- lower end cap；190a-
Lower through hole；The first engaging portion 210-；The second engaging portion 220-；231- receiving hole；232- embedded division；233- spring；020- well
Mouth pipeline；030- hoistway.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing, to this
Technical solution in utility model embodiment carries out clear, complete description.Obviously, described embodiment is the utility model
A part of the embodiment, instead of all the embodiments.
Therefore, below to the detailed description of the embodiments of the present invention be not intended to limit claimed it is practical new
The range of type, but it is merely representative of the section Example of the utility model.Based on the embodiments of the present invention, this field is general
Logical technical staff every other embodiment obtained without creative efforts belongs to the utility model guarantor
The range of shield.
It should be noted that in the absence of conflict, feature in the embodiments of the present invention and embodiment and
Technical solution 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 invention, it should be noted that the orientation of the instructions such as term " on ", "lower", "inner", "outside"
Or positional relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when usually put
The orientation or positional relationship that orientation or positional relationship or those skilled in the art usually understand, this kind of term merely to
Convenient for describing the utility model and simplifying description, rather than the device or element of indication or suggestion meaning must have specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the description of the utility model, " natural gas well " can be the natural gas well for acquiring conventional gas, can also
To be the natural gas well for acquiring Unconventional gas (shale gas, coal bed gas etc.).
Embodiment 1:
Fig. 1 is the schematic diagram of the section structure of the plunger 010 provided in this embodiment under lifting state.Fig. 2 is the present embodiment
The schematic diagram of the section structure of the plunger 010 of offer in a contracted state.
Incorporated by reference to referring to Figures 1 and 2, plunger 010 provided in this embodiment includes core pipe 110, insulates piece 120, elasticity again
Position part 130, guide part 140, stressed member 150, locating part 160, actuated piece 170, upper plug head 180 and lower end cap 190.
Core pipe 110 is round pipe fitting, and upper plug head 180 and lower end cap 190 connect with the upper and lower ends screw thread of core pipe 110 respectively
It connects.Multiple packing pieces 120 are arranged around core pipe 110.The inner surface and the outer surface for insulating piece 120 is arc surface.Insulate piece 120
It is above axially spaced to offer three threaded holes 121.It is offered in core pipe 110 and the one-to-one through hole of threaded hole 121
111.Guide part 140 is cylindric.Guide part 140 can be radially movable extend through hole 111.Guide part 140 is located at core pipe 110
Outer one end is provided with external screw thread, and is threadedly coupled with the threaded hole 121 on packing piece 120.Stressed member 150 is arranged in core pipe
In 110, and it is fixed on one end that guide part 140 is located in core pipe 110.Stressed member 150 is that guide part 140 projects radially outward shape
At endless member.
It is axially spaced to offer two outer locating slots 122 on the inner surface for insulating piece 120.In the outer peripheral surface of core pipe 110
It offers and the one-to-one interior locating slot 112 of outer locating slot 122.The setting of dynamic clamping head and quiet clamping head 130 is in packing piece 120 and core pipe
Between 110.130 one end of dynamic clamping head and quiet clamping head is located in interior locating slot 112, and the other end is located in outer locating slot 122, so that bullet
Property return unit 130 can be by good positioning.Dynamic clamping head and quiet clamping head 130 is in compressed state always, so that packing piece 120 begins
Has the trend of radial outward movement eventually.When plunger 010 works in hoistway, under the action of dynamic clamping head and quiet clamping head 130, packing
The outer surface of piece 120 is affixed on the inner peripheral surface of hoistway, forms sealing, to realize the lifting to liquid during uplink.When
When insulating piece 120 by radially inward extruding, packing piece 120 can overcome the elastic force of dynamic clamping head and quiet clamping head 130 radially-inwardly
Movement, the position that packing piece 120 is reduced by internal diameter in hoistway.In the present embodiment, dynamic clamping head and quiet clamping head 130 is bullet
Spring, in other embodiments, dynamic clamping head and quiet clamping head 130 may be rubber column or other are capable of providing the device of elastic force.
160 part of locating part is located between the periphery of stressed member 150 and the inner peripheral surface of core pipe 110.In dynamic clamping head and quiet clamping head 130
Under the action of, stressed member 150 is contacted with locating part 160, and locating part 160 plays the work of limitation packing 120 radial outward movement of piece
With.The first limit that packing 120 radial outward movement of piece is limited for contacting with stressed member 150 is provided on locating part 160
Face 161, transition face 163 and the second confined planes 162.First confined planes 161, transition face 163 and the second confined planes 162 along from down toward
On direction be sequentially connected.The radial distance of first confined planes 161 and 110 inner wall of core pipe is less than the second confined planes 162 and core pipe
The radial distance of 110 inner walls.When stressed member 150 and the first confined planes 161 contact, the row of 120 radial outward movement of piece is insulated
Journey is larger, and plunger 010 is in lifting state.At this point, packing piece 120 can fit in well under the action of dynamic clamping head and quiet clamping head 130
The inner peripheral surface in road forms sealing.When stressed member 150 and the second confined planes 162 contact, packing 120 radial outward movement of piece
Stroke shortens, and plunger 010 is in contraction state.At this point, even packing 120 radial outward movement of piece is to the limit, plunger 010
Maximum outside diameter is still less than the internal diameter of hoistway, so that can not form effective sealing between packing piece 120 and hoistway inner peripheral surface, reduces
Friction between packing piece 120 and hoistway inner peripheral surface.In this way, plunger 010 can fast downlink to shaft bottom.
Actuated piece 170 is connect with locating part 160, for driving locating part 160 along axial direction in first position (shown in Fig. 1
Position) and the second position (position shown in Fig. 2) between move.When locating part 160 moves to first position, the first limit
Plane 161 can be contacted with stressed member 150.When locating part 160 moves to the second position, the second confined planes 162 can with by
Power part 150 contacts.Along direction from bottom to up, transition face 163 and the radial distance of 110 inner wall of core pipe are gradually increased.It is limiting
During part 160 moves to the second position from first position, transition face 163 gradually radially-inwardly squeezes stressed member 150, finally
Contact the second confined planes 162 with stressed member 150.
Fig. 3 is the structural schematic diagram of locating part 160 in plunger 010 provided in this embodiment.In the present embodiment, it limits
Part 160 includes cylindric position-limiting drum 164.Position-limiting drum 164 is located in core pipe 110, and is coaxially disposed with core pipe 110.Position-limiting drum
There are gap between 164 outer peripheral surface and the inner peripheral surface of core pipe 110, enable the smoothly edge in core pipe 110 of locating part 160
It is axially moved.Fig. 4 is the schematic diagram of the section structure of locating part 160 in plunger 010 provided in this embodiment.Along from bottom to up
Direction (i.e. along the direction of the second position to first position), position-limiting drum 164 successively include first segment 164a, changeover portion 164c and the
Two sections of 164b.The internal diameter of first segment 164a is greater than the internal diameter of second segment 164b.Along direction from bottom to up, changeover portion 164c's is interior
Diameter is gradually reduced.First confined planes 161 are the inner peripheral surface of first segment 164a, and transition face 163 is the inner peripheral surface of changeover portion 164c, the
Two confined planes 162 are the inner peripheral surface of second segment 164b.The item extended along direction from bottom to up is also provided on position-limiting drum 164
Shape hole 165.Guide part 140 runs through strip-shaped hole 165, so that stressed member 150 is located in position-limiting drum 164.Stressed member 150 can be with item
The inner surface of the position-limiting drum 164 of 165 two sides of shape hole contacts.
Actuated piece 170 can be used as the component for driving locating part 160 to move between the first position and the second position
Various ways are realized.For example, actuated piece 170 can be the linear motor being arranged in core pipe 110, linear motor is built in core
Power drives in pipe 110 drive locating part 160 to move between the first position and the second position.Column is detected by sensor
Position of the plug 010 in oil/gas well.After sensor detects that plunger 010 enters well head pipeline, linear motor drives locating part
160 move to the second position.After sensor detects that plunger 010 reaches shaft bottom, linear motor drives locating part 160 to move to
First position.
In the present embodiment, the rod-like members that actuated piece 170 axially extends, actuated piece 170 include opposite first end
170a and second end 170b.Along first end 170a to the direction of second end 170b, locating part 160 moves to second from first position
Position.Along second end 170b to the direction of first end 170a, locating part 160 moves to first position from the second position.Upper plug head
Offer through hole 180a on 180, upper through hole 180a is axially extended and coaxial with core pipe 110.It is opened up on lower end cap 190
There are lower through hole 190a, lower through hole 190a to axially extend and coaxial with core pipe 110.The first end 170a of actuated piece 170 with
Upper through hole 180a slidably cooperates, and the second end 170b of actuated piece 170 slidably cooperates with lower through hole 190a.It is causing
When moving part 170 is axially moved, actuated piece 170 drives locating part 160 to be axially moved.When actuated piece 170 drives locating part 160
When moving to first position, the first end 170a of actuated piece 170 is extended to outside through hole 180a, to receive along first end 170a
To the driving force in the direction of second end 170b.The driving force can be external power device (such as motor, hydraulic cylinder or gas
Cylinder) it is applied to the power of first end 170a, make actuated piece 170 that locating part 160 be driven to move to the second position.In the present embodiment,
Hitting the power generated by the shock portion of the well head pipeline top of first end 170a and oil/gas well drives actuated piece 170 to move, and makes
Locating part 160 moves to the second position.When actuated piece 170 drives locating part 160 to move to the second position, actuated piece 170
Second end 170b is extended to outside lower through hole 190a, to receive along second end 170b to the driving force in the direction of first end 170a.
In the present embodiment, the power generated is hit by the shock portion of second end 170b and the shaft bottom of oil/gas well drives actuated piece
170 movements, make locating part 160 move to first position.
In the present embodiment, the upper end of position-limiting drum 164 is provided with top plate 166.Actuated piece 170 can be axial movable through top
Plate 166.The first supporting element 171 close to first end 170a and the close to second end 170b is arranged at intervals on actuated piece 170
Two supporting elements 172.Top plate 166 is between the first supporting element 171 and the second supporting element 172.Further, in the first supporting element
Resilient snubber 173 is provided between 171 and top plate 166.Resilient snubber 173 is in compressed state always, so that limit
Position part 160 has the trend moved to the second supporting element 172.In the case where not by external force, top plate 166 is by resilient snubber
173 are pressed on the second supporting element 172.During actuated piece 170 is moved along the direction of first end 170a to second end 170b, such as
When fruit locating part 160 is blocked by foreign matter or stressed member 150 and can not be moved to the second position, top plate 166 is detached from the second supporting element
172, resilient snubber 173 is further compressed.It so, it is possible that actuated piece 170 and foreign matter or stressed member 150 is avoided to occur excessively
Fierce collision or friction, helps to improve the service life of plunger 010.In the present embodiment, resilient snubber 173 is to be arranged
Spring on actuated piece 170.
Referring to figure 5., in the present embodiment, plunger 010 further includes the holding mechanism cooperated with actuated piece 170.Holding machine
Structure is configured to that actuated piece 170 is maintained current location when locating part 160 is located at first position, to avoid locating part 160
It is detached from first position.Holding mechanism is also structured to maintain actuated piece 170 currently when locating part 160 is located at the second position
Position is detached from the second position to avoid locating part 160.When locating part 160 is located at first position, pass through the of actuated piece 170
The shock portion of one end 170a and well head pipeline top hits the power generated and triggers holding mechanism, releases holding mechanism to actuated piece
The maintenance of 170 position, the movement of actuated piece 170 drive locating part 160 to move to the second position.When locating part 160 is located at second
When position, the power generated is hit by the second end 170b of actuated piece 170 and the shock portion of shaft bottom and triggers holding mechanism, is made
Holding mechanism releases the maintenance to the position of actuated piece 170, and the movement of actuated piece 170 drives locating part 160 to move to first position.
Holding mechanism includes the first engaging portion 210 and the second engaging portion 220 being arranged on actuated piece 170, and setting
Third engaging portion on upper plug head 180.First engaging portion 210 and the second engaging portion 220 are to be provided on actuated piece 170
Annular groove, the annular groove are arranged around the axis of actuated piece 170.Wherein, the equal position in the first engaging portion 210 and the second engaging portion 220
In upper through hole 180a, and the second engaging portion 220 compared to the first engaging portion 210 closer to the first of actuated piece 170
Hold 170a.The distance between first engaging portion 210 and the second engaging portion 220 are substantially equal between first position and the second position
Distance.Third engaging portion includes the receiving hole 231 for being radially provided with through hole 180a internal perisporium, is mounted slidably
In the embedded division 232 in receiving hole 231 and it is arranged in receiving hole 231 and radially inward elasticity is applied to embedded division 232
The spring 233 of power.When actuated piece 170 drives locating part 160 to move to first position, effect of the embedded division 232 in spring 233
In the first engaging portion 210 of lower insertion.When actuated piece 170 drives locating part 160 to move to the second position, embedded division 232 is in bullet
It is embedded under the action of spring 233 in second engaging portion 220.
It should be further noted that in the present embodiment, the first confined planes 161 and the second confined planes 162 it is radial away from
It can be set to 0.5mm- from (difference for being equal to the radius of first segment 164a inner peripheral surface and the radius of second segment 164b inner peripheral surface)
Any one value between 2.5mm, specifically, the radial distance of the first confined planes 161 and the second confined planes 162 is selected as 1mm.
It should be understood that in other embodiments, the radial distance of the first confined planes 161 and the second confined planes 162 can be set into
Other any values.
It should be further noted that in other embodiments, the second confined planes 162, transition face 163 and the first limit
Face 161 also can be set on stressed member 150.For example, being provided on stressed member 150 for contacting with locating part 160 to limit
Insulate the second confined planes 162, transition face 163 and the first confined planes 161 of 120 radial outward movement of piece；Second confined planes 162,
Transition face 163 and the first confined planes 161 are sequentially connected along the direction (from bottom to up) of the second position to first position；First limit
The radial distance of face 161 and 110 inner wall of core pipe is greater than the radial distance of the second confined planes 162 and 110 inner wall of core pipe, locating part
160 are configured to contact with the first confined planes 161 at first position, can be with the second confined planes at the second position
162 contacts.
Plunger 010 provided in this embodiment, by the way that the first confined planes 161, the second confined planes are arranged on locating part 160
162 and transition face 163, so that during locating part 160 moves between the first position and the second position, by plunger 010
Working condition is adjusted between lifting state and contraction state.When plunger 010 is in contraction state, piece 120 and hoistway are insulated
Effective sealing can not be formed between inner peripheral surface, reduce the friction between packing piece 120 and hoistway inner peripheral surface, plunger 010 can
Fast downlink overcomes the deficiencies in the prior art to shaft bottom.In addition, connecting the first confined planes 161 and second by transition face 163
Confined planes 162, so that the conversion of the working condition of plunger 010 is more easier reliably.
Embodiment 2:
Fig. 6 is the structural schematic diagram of oil and gas well structure 01 provided in this embodiment.Referring to figure 5., in the present embodiment, oily
Gas well structure 01 includes well head pipeline 020, the hoistway 030 connecting with well head pipeline 020 and the plunger recorded in embodiment 1
010.Plunger 010 can be advanced into hoistway 030 under well head pipeline 020, and come downwards to 030 bottom of hoistway along hoistway 030.Plunger
010 can also be advanced into well head pipeline 020 on hoistway 030, and the top of well head pipeline 020 is gone upward to along well head pipeline 020.
When plunger 010 reaches the top of well head pipeline 020, the first end 170a of actuated piece 170 and setting are at 020 top of well head pipeline
Shock portion hit, so that locating part 160 is moved to the second position, plunger 010 is in contraction state at this time, insulates piece 120
Effective sealing can not be formed between 030 inner peripheral surface of hoistway, reduces the friction between packing piece 120 and 030 inner peripheral surface of hoistway,
Plunger 010 can fast downlink to the bottom of hoistway 030.When plunger 010 reaches the bottom of hoistway 030, the of actuated piece 170
Two end 170b and the shock portion generating device that 030 bottom of hoistway is arranged in, make locating part 160 move to first position, at this time column
Plug 010 is in lifting state, insulates piece 120 and is in close contact shape with the internal perisporium of hoistway 030 under the action of dynamic clamping head and quiet clamping head 130
At sealing, to be lifted in uplink to hydrops.
The foregoing is merely the section Examples of the utility model, are not intended to limit the utility model, for this
For the technical staff of field, various modifications and changes may be made to the present invention.It is all the spirit and principles of the utility model it
Interior, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of plunger characterized by comprising
Core pipe；
It is arranged around the core pipe, and is configured to the multiple packing pieces radially reciprocated；
The packing piece is acted on, and is configured to the elastic reset for making the packing piece have the trend moved radially outwards
Part；
It is radially mobilizable to run through the core pipe, and one end is connect with the packing piece, the other end is located in the core pipe
Guide part；
It is arranged in the core pipe, and the stressed member being connect with the guide part；
Positioned at the locating part between the stressed member and the core pipe inner wall；And
It is connect with the locating part, and is configured to that the locating part is driven to transport between the first position and the second position along axial direction
Dynamic actuated piece；
Wherein, it is provided on the locating part for being contacted with the stressed member to limit the packing piece radial outward movement
First confined planes, transition face and the second confined planes；First confined planes, the transition face and second confined planes are described in
The direction of the second position to the first position is sequentially connected；The radial distance of first confined planes and the core pipe inner wall is small
In the radial distance of second confined planes and the core pipe inner wall；The locating part is configured to institute at the first position
Stating the first confined planes can contact with the stressed member, and second confined planes can be with the stress in the second position
Part contact；
Alternatively, being provided on the stressed member for being contacted with the locating part to limit the packing piece radial outward movement
Second confined planes, transition face and the first confined planes；Second confined planes, the transition face and first confined planes are described in
The direction of the second position to the first position is sequentially connected；The radial distance of first confined planes and the core pipe inner wall is big
In the radial distance of second confined planes and the core pipe inner wall, the locating part is configured at the first position
It is enough to limit face contact with described first, it in the second position can be with the second limit face contact.
2. plunger according to claim 1, it is characterised in that:
The actuated piece is arranged in the core pipe, and the actuated piece is configured to move axially in reciprocal fashion；
The actuated piece includes opposite first end and second end；Along the first end to the direction of the second end, the limit
Position part moves to the second position from the first position；Along the second end to the direction of the first end, the limit
Part moves to the first position from the second position；
When the locating part is located at the first position, the actuated piece is configured at least described first end and is located at the core
Pipe is outer, to receive along the first end to the driving force in the direction of the second end；When the locating part is located at the second
When setting, the actuated piece is configured at least described second end and is located at outside the core pipe, to receive along the second end to described
The driving force in the direction of first end.
3. plunger according to claim 2, it is characterised in that:
The locating part axially moveable can be run through by the actuated piece；
The first supporting element close to the first end and second close to the second end are arranged at intervals on the actuated piece
Support member, the locating part is between first supporting element and second supporting element.
4. plunger according to claim 3, it is characterised in that:
The plunger further includes the resilient snubber being arranged between first supporting element and the locating part, and the elasticity is slow
Stamping is configured to the trend for having the locating part to second support movements.
5. plunger according to claim 4, it is characterised in that:
The resilient snubber is the spring for being sheathed on the actuated piece.
6. plunger according to claim 1, it is characterised in that:
The locating part includes the position-limiting drum of tubular, along the second position to the direction of the first position, the position-limiting drum
It successively include first segment, changeover portion and second segment；The internal diameter of the first segment is greater than the internal diameter of the second segment；Along described second
The direction of position to the first position, the internal diameter of the changeover portion are gradually reduced；
First confined planes are the inner peripheral surface of the first segment, and the transition face is the inner peripheral surface of the changeover portion, described the
Two confined planes are the inner peripheral surface of the second segment；
The strip-shaped hole of the direction extension along the second position to the first position is also provided on the position-limiting drum；It is described to lead
Run through the strip-shaped hole to part；The stressed member is located in the position-limiting drum.
7. plunger according to claim 6, it is characterised in that:
The stressed member is to be located at one end in the core pipe by the guide part to project radially outward the ring-type formed.
8. plunger according to claim 1, it is characterised in that:
The plunger further includes the holding mechanism with actuated piece cooperation；The holding mechanism is configured in the locating part
The actuated piece is maintained into current location when positioned at the first position, and is located at the second position in the locating part
When the actuated piece maintained into current location.
9. plunger described in any one of -8 according to claim 1, it is characterised in that:
The radial distance of first confined planes and second confined planes is 0.5mm-2.5mm.
10. a kind of oil and gas well structure characterized by comprising
Well head pipeline；
With the hoistway of the well head piping connection；And
Plunger described in any one of claim 1-9；
Wherein, the plunger is configured to after being advanced into the well head pipeline, and the actuated piece drives the locating part movement
To the second position；After the plunger is configured to the predeterminated position that downlink reaches in the hoistway, the actuated piece is driven
The locating part of stating moves to the first position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920162110.6U CN209510605U (en) | 2019-01-28 | 2019-01-28 | A kind of plunger and oil and gas well structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920162110.6U CN209510605U (en) | 2019-01-28 | 2019-01-28 | A kind of plunger and oil and gas well structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209510605U true CN209510605U (en) | 2019-10-18 |
Family
ID=68203479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920162110.6U Withdrawn - After Issue CN209510605U (en) | 2019-01-28 | 2019-01-28 | A kind of plunger and oil and gas well structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209510605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654000A (en) * | 2019-01-28 | 2019-04-19 | 成都百胜野牛科技有限公司 | A kind of plunger and oil and gas well structure |
-
2019
- 2019-01-28 CN CN201920162110.6U patent/CN209510605U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654000A (en) * | 2019-01-28 | 2019-04-19 | 成都百胜野牛科技有限公司 | A kind of plunger and oil and gas well structure |
| CN109654000B (en) * | 2019-01-28 | 2024-01-16 | 成都百胜野牛科技有限公司 | Plunger and oil gas well structure |
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