CN109519145A - A kind of fluid separation apparatus - Google Patents
A kind of fluid separation apparatus Download PDFInfo
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- CN109519145A CN109519145A CN201811359945.7A CN201811359945A CN109519145A CN 109519145 A CN109519145 A CN 109519145A CN 201811359945 A CN201811359945 A CN 201811359945A CN 109519145 A CN109519145 A CN 109519145A
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- Prior art keywords
- packer accessory
- separation apparatus
- fluid separation
- packer
- face
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- 239000012530 fluid Substances 0.000 title claims abstract description 81
- 238000000926 separation method Methods 0.000 title claims abstract description 76
- 230000002093 peripheral effect Effects 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003208 petroleum Substances 0.000 abstract description 4
- 239000003345 natural gas Substances 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 12
- 210000002445 nipple Anatomy 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 241000521257 Hydrops Species 0.000 description 5
- 206010030113 Oedema Diseases 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000002343 natural gas well Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to natural gas technical field of petroleum extraction, fluid separation apparatus provided by the invention, the end outer surface of packer accessory in axial direction is biased face, and the direction biased face far from packer accessory is gradually radially inwardly extending vertically.In this way, the biased face of wherein one end of packer accessory is squeezed when the position that fluid separation apparatus becomes smaller suddenly by hoistway internal diameter, the axial thrust load of generation drive packer accessory axially movable until the other end and support portion of packer accessory against.Using packer accessory and support portion against position as fulcrum, the radial component of generation radially-inwardly deflects one end where driving extruded bias inclined-plane.In this way, enabling packer accessory smoothly radially-inwardly to shrink, so that fluid separation apparatus can pass through the position that hoistway internal diameter becomes smaller suddenly.
Description
Technical field
The present invention relates to natural gas technical field of petroleum extraction more particularly to a kind of fluid separation apparatus.
Background technique
In the development process of petroleum or the natural gas well, in order to improve the yield of petroleum or natural gas, need shaft bottom
Hydrops is lifted to ground.
A kind of fluid separation apparatus is provided in the related technology.The mandrel periphery of fluid separation apparatus is provided with multiple packings
Part, these packer accessories contact friction with hoistway inner wall always under the action of the elastic member, form sealing.Under closing well state, stream
Body separating device comes downwards to shaft bottom.When driving a well, pressure caused by the gas below fluid separation apparatus drives fluid partitioning
Device uplink, the liquid above fluid separation apparatus are lifted by fluid separation apparatus, go upward to well in fluid separation apparatus
Hydrops when mouth above discharge fluid separation apparatus.
The case where becoming smaller suddenly in some hoistways there are hoistway internal diameter, such as be provided in hoistway and sat for downhole tool
When the seating nipple of envelope, the internal diameter of seating nipple is less than the internal diameter of hoistway, this causes hoistway internal diameter to become smaller suddenly.It provides in the related technology
Fluid separation apparatus be difficult to the position to become smaller suddenly by hoistway internal diameter.Fluid separation apparatus even after packer accessory contraction
Minimum outer diameter is less than the minimum diameter of hoistway, and there is also fluid separation apparatus to be easily stuck in the position that hoistway internal diameter becomes smaller suddenly
Problem.
Summary of the invention
The purpose of the present invention is to overcome the deficiency in the prior art, provides a kind of fluid separation apparatus, can pass through
The position that hoistway internal diameter becomes smaller suddenly.
The embodiment of the present invention is achieved through the following technical solutions:
A kind of fluid separation apparatus, comprising: mandrel；Support portion, two support portions are in axial direction oppositely arranged on mandrel
Outer peripheral surface, form storage space between two support portions；Multiple packer accessories, multiple packer accessories are around mandrel arrangement, packer accessory
In storage space, in axial direction the length of packer accessory is less than the length of storage space, the end of packer accessory in axial direction
Portion outer surface is biased face, and the direction biased face far from packer accessory is gradually radially inwardly extending vertically；And biasing structure
Part, biasing member is for driving packer accessory to be moved radially outward；Wherein, packer accessory be configured to ought wherein one end biased face by
When extruding, the axial thrust load of generation drives packer accessory axially movable until the other end and support portion of packer accessory are against generation
Radial component drive extruded bias inclined-plane where one end radially-inwardly deflect.
Further, biased face includes axially disposed the first biased face and the second biased face, and the first biased face is opposite
In the second biased face closer to the axial end face of packer accessory；The radially inwardly extending trend of second biased face is inclined relative to first
Pressure surface is gentler.
Further, in axial direction, the second biased face is inclined-plane, and the first biased face is arc surface.
Further, mandrel is hollow structure, offers through hole on mandrel；Fluid separation apparatus further includes locating part,
Locating part includes sequentially connected connecting pin, by section and positive stop end；By section extend through hole；Connecting pin is fixed with packer accessory
Connection；Positive stop end is located in mandrel, and is configured to that through hole can not be passed through.
Further, in axial direction, the length of through hole and the difference of diameter by section are greater than the length of storage space
And the difference of the length of packer accessory.
Further, along circumferential direction, the width of through hole is slightly larger than diameter by section.
Further, positive stop end has the contact surface for contacting with mandrel, and contact surface is arc surface.
Further, each packer accessory is connected at least two locating parts, and at least two locating parts are relative to packer accessory
Axial midpoint is arranged symmetrically.
Further, biasing member is the elastic component being arranged between packer accessory and mandrel；Each packer accessory and mandrel it
Between be provided at least two biasing members, at least two biasing members are arranged symmetrically relative to the axial midpoint of packer accessory.
Further, in axial direction, the axial end portion inner edge rounded corner of packer accessory.
Technical solution of the present invention is at least had the following advantages and beneficial effects:
Fluid separation apparatus provided in an embodiment of the present invention, the end outer surface of packer accessory in axial direction are biased face,
The direction biased face far from packer accessory is gradually radially inwardly extending vertically.In this way, when fluid separation apparatus passes through hoistway
When the position that internal diameter becomes smaller suddenly, the biased face of wherein one end of packer accessory is squeezed, and the axial thrust load of generation drives packer accessory
Axially movable until packer accessory the other end and support portion against.Using packer accessory and support portion against position as fulcrum, produce
Raw radial component radially-inwardly deflects one end where driving extruded bias inclined-plane.In this way, enabling packer accessory
It smoothly radially-inwardly shrinks, so that fluid separation apparatus can pass through the position that hoistway internal diameter becomes smaller suddenly.
Detailed description of the invention
For the clearer technical solution for illustrating the embodiment of the present invention, 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 certain embodiments of the invention, it is not construed as to model of the present invention
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 hoistway；
Fig. 2 is the schematic perspective view of fluid separation apparatus provided in an embodiment of the present invention；
Fig. 3 is first the schematic diagram of the section structure of fluid separation apparatus provided in an embodiment of the present invention；
Fig. 4 is second the schematic diagram of the section structure of fluid separation apparatus provided in an embodiment of the present invention；
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 shape of the fluid separation apparatus provided in an embodiment of the present invention at the position to become smaller suddenly by hoistway internal diameter
State schematic diagram a；
Fig. 8 is shape of the fluid separation apparatus provided in an embodiment of the present invention at the position to become smaller suddenly by hoistway internal diameter
State schematic diagram b；
Fig. 9 is shape of the fluid separation apparatus provided in an embodiment of the present invention at the position to become smaller suddenly by hoistway internal diameter
State schematic diagram c；
Figure 10 is between the adjacent packer accessory of fluid separation apparatus because of the circumferential mobile schematic diagram that clamping stagnation occurs.
In figure: 010- hoistway；110- oil pipe；120- oil pipe；130- seating nipple；131- thread segment；132- undergauge face；133-
Active section；140- box cupling；020- fluid separation apparatus；021- storage space；210- packer accessory；211- biased face；211a- first
Biased face；The second biased face of 211b-；212- axial end portion inner edge；213- internal thread hole；The first end 310-；311- salvages slot；
312- support portion；The second end 320-；321- support portion；410- mandrel；411- through hole；510- biasing member；610- limit
Part；The connecting pin 611-；612- is by section；613- positive stop end；613a- contact surface.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing, to the present invention
Technical solution in embodiment carries out clear, complete description.Obviously, described embodiment is that a part of the invention is implemented
Example, instead of all the embodiments.
Therefore, the model of claimed invention is not intended to limit to the detailed description of the embodiment of the present invention below
It encloses, but is merely representative of section Example of the invention.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, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature and technology in embodiment and embodiment in the present invention
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 invention, it should be noted that the orientation or position of the instructions such as term " on ", "lower", "inner", "outside"
Set relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation or position usually put
Set relationship or orientation or positional relationship that those skilled in the art usually understand, this kind of term is merely for convenience of describing
The present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.
Term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Fig. 1 is the structural schematic diagram of hoistway 010, and the position that 010 internal diameter of hoistway becomes smaller suddenly is shown.Well in Fig. 1
Road 010 includes oil pipe 110, oil pipe 120, seating nipple 130 and box cupling 140.The lower end of oil pipe 110 and the upper end spiral shell of seating nipple 130
Line connection, the lower end of seating nipple 130 are connect with the threaded upper ends of box cupling 140, the lower end of box cupling 140 and the upper end spiral shell of oil pipe 120
Line connection.Seating nipple 130 includes the internal thread segment 131 connecting with oil pipe 110 and active section 133, internal thread segment 131 and active section
It is connected between 133 by the undergauge face 132 that internal diameter is gradually reduced.The internal diameter of active section 133 is less than the internal diameter of oil pipe 110.Invention
The packer accessory of people's discovery, the fluid separation apparatus provided in the related technology can only overall radial movement.When fluid separation apparatus from
When oil pipe 110 enters seating nipple 130, the axial end portion of packer accessory can be collided with undergauge face 132, collide the radial component of generation only
One end of packer accessory and the collision of undergauge face 132 is acted on, which is unable to drive packer accessory overall radial and inwardly moves, into
And packer accessory is caused not shrink radially-inwardly, the axial end portion of packer accessory and undergauge face 132 are against finally there is fluid point
Every device be stuck in 010 internal diameter of hoistway become smaller suddenly position the phenomenon that.It should be noted that 010 internal diameter of hoistway becomes smaller suddenly
It is likely to be tubing deformation bring, in this case, the fluid separation apparatus provided in the related technology is also easily stuck in
At tubing deformation.
In order to improve the above problem, the following examples provide a kind of fluid separation apparatus,
Embodiment 1:
Fig. 2 is the schematic perspective view of fluid separation apparatus 020 provided in this embodiment.Fluid separation apparatus 020.This
The fluid separation apparatus 020 that embodiment provides is referred to alternatively as plunger again, is used for the product by petroleum or natural gas well shaft bottom
Liquid is lifted to outside well.Under closing well state, the pressure difference in well head and shaft bottom reduces, and fluid separation apparatus 020 is in self gravity
Shaft bottom is fallen under effect.Under the state of driving a well, the pressure in well head and shaft bottom increases, and fluid separation apparatus 020 flows thereunder
Uplink under the action of body pressure, and then the hydrops above it is lifted to well head upwards, hydrops is expelled to outside well by well head.This
Sample can avoid petroleum caused by hydrops or the decline of natural gas well yield.
Fluid separation apparatus 020 include it is multiple can radially movable ground packer accessory 210.Packer accessory 210, which has, radially outward to be transported
Dynamic trend, enable one, some or all of packer accessories 210 contact with the inner surface of hoistway 010.Packer accessory 210 and well
The contact of 010 inner surface of road can limit the flowing of the fluid between fluid separation apparatus 020 and hoistway.Fluid separation apparatus 020
Both ends be respectively the first end 310 and the second end 320.First end 310 is equipped with the salvaging slot 311 of annular.Work as fluid
When separating device 020 is stuck in hoistway 010, fishing tool can be combined with slot 311 is salvaged, by fluid separation apparatus 020
It takes out.
Fig. 3 is first the schematic diagram of the section structure of fluid separation apparatus 020 provided in this embodiment.In order to preferably open up
Show structure, the first end 310, the second end 320 and mandrel 410 are only remained in Fig. 3.Referring to figure 3., fluid separation apparatus
020 further includes mandrel 410.The both ends of mandrel 410 are provided with external screw thread.It is opened on the first end 310 and the second end 320
Equipped with internal thread hole.The both ends of mandrel 410 are inserted into respectively in the internal thread hole opened up on the first end 310 and the second end 320,
And the both ends of mandrel 410 are threadedly coupled with the first end 310 and the second end 320 respectively.First end 310 is towards second end
First 320 end face constitutes support portion 312.The end face of second end 320 towards the first end 310 constitutes support portion 321.Support portion
Storage space 021 is formed between 312 and support portion 321.In other embodiments, it can also be protruded from by other outside mandrel 410
The component of circumferential surface constitutes support portion, these components can be with 410 one of mandrel, be also possible to seperated.Support portion can be with
It is the ring-type for axially surrounding the circle of mandrel 410 1, is also possible to the multiple of circumferentially spaced setting.
Fig. 4 is second the schematic diagram of the section structure of fluid separation apparatus 020 provided in this embodiment.Referring to figure 4., it seals
Spacing body 210 is accommodated in storage space 021.In axial direction the length of packer accessory 210 is less than the length of storage space 021.
Fig. 5 is enlarged drawing at the A of Fig. 4, and Fig. 6 is enlarged drawing at the B of Fig. 4.As can be known from Fig. 5 and Fig. 6, in axial direction packer accessory
There are gaps between 210 upper end and support portion 312, and there are gaps between the lower end and support portion 321 of packer accessory 210.Packing
Part 210 can in axial direction move in storage space 021 so that the upper end end face of packer accessory 210 and support portion 312 against,
Or make packer accessory 210 lower end surface and support portion 321 against.When packer accessory 210 upper end end face and support portion 312 against
When, the gap between the lower end surface and support portion 321 of packer accessory 210 increases, and radially-inwardly deflects for the lower end of packer accessory 210
Enough spaces are provided.When the lower end surface of packer accessory 210 and support portion 321 against when, the upper end end face of packer accessory 210 and branch
Gap between support part 312 increases, and radially-inwardly deflects for the upper end of packer accessory 210 and provides enough spaces.
Fluid separation apparatus 020 further includes biasing member 510, and biasing member 510 is for driving packer accessory 210 radially outward
Movement.In the present embodiment, biasing member 510 is elastic component, is configured to apply radially outer elasticity to packer accessory 210
Power makes packer accessory 210 have the trend of radial outward movement.Specifically, the biasing member 510 in the present embodiment is that setting is being sealed
Spring between spacing body 210 and mandrel 410.
In axial direction, the end outer surface of packer accessory 210 is biased face 211.Side vertically far from packer accessory 210
To biased face 211 gradually extends radially inwardly.
Fig. 7-Fig. 9 is fluid separation apparatus 020 provided in this embodiment at the position to become smaller suddenly by 010 internal diameter of hoistway
When status diagram.For the clearer working principle for showing fluid separation apparatus 020 provided in this embodiment, in Fig. 7-
The structure of fluid separation apparatus 020 and hoistway 010 is simplified in Fig. 9, and increases packer accessory 210 and support portion 312
Gap (the gap in actually manufacture, between packer accessory 210 and support portion 312 and support portion 321 between support portion 321
There is no so greatly, the gap in Fig. 7-Fig. 9 is used for the purpose of to illustrate fluid separation apparatus shown in Fig. 7-Fig. 9
020 principle and the displaying more exaggerated that carries out).The present embodiment is with fluid separation apparatus 020 from upper past in hoistway 010
It is illustrated for lower movement.During fluid separation apparatus 020 enters seating nipple 130 from oil pipe 110, packer accessory 210
The biased face 211 of lower end and undergauge face 132 against.The power that undergauge face 132 applies biased face 211 can be analyzed to axially upwards
Component F1With radially inward component F2.Component F axially upwards1Drive packer accessory 210 moved axially upward, until packer accessory
210 upper end end face and support portion 312 against.The upper end end face of packer accessory 210 and support portion 312 rub against frictional force is generated
Wipe the upper end radial inward movement of power limit packer accessory 210.Therefore, the upper end end face of packer accessory 210 and support portion 312 against
Place forms a fulcrum, this makes radially inward component F2The lower end for the drive packer accessory 210 being more easier is radially-inwardly
Deflection.After the biased face 211 of 210 lower end of packer accessory passes through undergauge face 132, fluid separation apparatus 020 can smoothly lead to
Cross undergauge face 132.
Further, in the present embodiment, biased face 211 includes axially disposed the first biased face 211a and second inclined
Pressure surface 211b.First biased face 211a is relative to the second biased face 211b closer to the axial end face of packer accessory 210.Second bias
Face 211b radially inwardly extending trend is gentler relative to the first biased face 211a.In fluid separation apparatus 020 from oil pipe
During 110 enter seating nipple 130, the first biased face 211a is first with undergauge face 132 against due to the second biased face 211b
Radially inwardly extending trend is gentler relative to the first biased face 211a, therefore the first biased face 211a and undergauge face 132
Against when, component F axially upwards1It is bigger, to be easier to drive packer accessory 210 moved axially upward, promote packer accessory 210
Upper end end face and support portion 312 against formed fulcrum.Then the second biased face 211b and undergauge face 132 are against radial at this time
Inside component F2Become larger, so that 210 lower end of packer accessory be made to be more easier radially-inwardly to deflect.The use of this structure can increase
Biasing pressure surface 211 passes through the probability in undergauge face 132.
It is desirable that component F axially upwards1With radially inward component F2Variation that can be gentle, this aspect have
Help reduce the impact that packer accessory 210 is subject to, postpones the service life of packer accessory 210, on the other hand can increase biased face 211
Stability when by undergauge face 132.Therefore, in the present embodiment, in axial direction, the second biased face 211b is inclined-plane, the
One biased face 211a is arc surface.First biased face 211a and the second biased face 211b are continuous.
Further, in the present embodiment, in axial direction, 212 rounded corner of axial end portion inner edge of packer accessory 210.?
The upper end end face of packer accessory 210 and support portion 312 are after forming fulcrum, when the lower end of packer accessory 210 radially-inwardly deflects,
Due to 212 rounded corner of axial end portion inner edge of packer accessory 210, so that the lower end of packer accessory 210 being capable of more smoothly diameter
To deflecting inward, and then increase the probability that biased face 211 passes through undergauge face 132.
Further, in the present embodiment, mandrel 410 is hollow cylinder-like structure.It offers and passes through on mandrel 410
Hole 411.Fluid separation apparatus 020 further includes locating part 610.Locating part 610 includes sequentially connected connecting pin 611, by section
612 and positive stop end 613.By section 612 hole 411 is extended through, is fixedly connected by connecting pin 611 with packer accessory 210, positive stop end
613 are located in mandrel 410, and being configured to can not be by through hole 411.Specifically, in the present embodiment, in packer accessory 210
Inner radial surface on offer internal thread hole 213, be arranged on connecting pin 611 promising.Internal thread hole 213 is inserted into connecting pin 611
In, and it is threadedly coupled with internal thread hole 213, is fixedly connected with realizing with packer accessory 210.By section 612 be cylinder, is passed through
Section 612 can the radial motion in through hole 411.During 210 radial outward movement of packer accessory, when positive stop end 613 and core
When the inner surface contact of axis 410,210 radial outward movement of packer accessory to the limit.In the process of 210 radial inward movement of packer accessory
In, when the inner radial surface of packer accessory 210 is contacted with mandrel 410,210 radial inward movement of packer accessory to the limit.This implementation
In example, since the limit point of 210 radial outward movement of packer accessory is located inside mandrel 410, help to reduce the first end
310 and second end 320 outer diameter, enable fluid separation apparatus 020 provided in this embodiment more smoothly to pass through well
010 internal diameter of road becomes smaller position suddenly.
In order to ensure packer accessory 210 is during in axial direction moving, the axial end portion of packer accessory 210 can be with branch
Support part 312 or support portion 321 are against fulcrum is formed, in the present embodiment, in axial direction, the length of through hole 411 with pass through
The difference of the diameter of section 612 is greater than the difference of the length of storage space 021 and the length of packer accessory 210.In addition, above-mentioned be configured to keep away
Exempt from packer accessory 210 during in axial direction moving, by section 612 collides, avoid with 411 axial ends of through hole
The case where locating part 610 is broken, improves the functional reliability of fluid separation apparatus 020.
In some cases it is possible to caused by occurring because of the generation circumferential movement of packer accessory 210 between adjacent packer accessory 210
The case where clamping stagnation occurs, and then influences 210 radial motion of packer accessory.Clamping stagnation occurs between adjacent packer accessory 210 for Figure 10
Schematic diagram.In Figure 10, radial inward movement is to the limit for the packer accessory 210 that number is X, the packer accessory that number is Y at this time
210 radial inward movement.During 210 radial inward movement of packer accessory that number is Y, have occurred in counter clockwise direction
Circumferential offset, the packer accessory 210 for making the packer accessory 210 of call number Y be X with number before inwardly moving to the limit touch
Friction is hit, causes the packer accessory 210 that number is Y that clamping stagnation occurs, radial inward movement can not be continued.Such case will lead to fluid
Separating device 020 is stuck in hoistway.In order to avoid the generation of above situation, in the present embodiment, through hole along circumferential direction
Diameter of 411 width slightly larger than by section 612.The width of through hole 411 is to ensure that locating part 610 can be suitable along circumferential direction
The minimum widith of smooth progress radial motion, such as diameter of the width of through hole 411 than by section 612 is big along circumferential direction
0.5mm-2mm。
In the present embodiment, positive stop end 613 is with the contact surface 613a for contacting with mandrel 410, contact surface 613a
Arc surface.When 210 radial outward movement of packer accessory to extreme position, contact surface 613a is contacted with the inner surface of mandrel 410.?
When the one end of packer accessory 210 in axial direction radially-inwardly deviates, arc-shaped contact surface 613a can reduce 210 diameter of packer accessory
To the resistance being offset inward, packer accessory 210 is smoothly radially-inwardly deviated.
Further, in the present embodiment, there are two locating parts 610 for each connection of packer accessory 210.Two locating parts 610
Axial midpoint relative to packer accessory 210 supports packer accessory 210 preferably, in addition but also packer accessory 210
When any end in axial direction radially-inwardly deviates, the stress condition of packer accessory 210 is almost the same.In other embodiments, often
A packer accessory 210 can connect there are two above locating part 610, and more than two locating parts 610 are relative to packer accessory 210
Radial midpoint is arranged symmetrically.
Further, in the present embodiment, there are two biasing members for setting between each packer accessory 210 and mandrel 410
510.Two biasing members 510 are symmetrical arranged relative to the axial midpoint of packer accessory 210.In this way, working as the lower end diameter of packer accessory 210
To when being offset inward, the biasing member 510 close to 210 upper end of packer accessory is supported the upper end of packer accessory 210, avoids insulating
The upper end of part 210 is radially-inwardly slided, to ensure that upper end end face and the support portion 312 of packer accessory 210 against place form one
A stable fulcrum, and then facilitate biased face 211 and pass through undergauge face 132.In other embodiments, each packer accessory
210 can be corresponding with more than two biasing members 510, radial direction of more than two biasing members 510 relative to packer accessory 210
Midpoint is arranged symmetrically.
It should be pointed out that the present embodiment is carried out so that fluid separation apparatus 020 moves from top to bottom in hoistway 010 as an example
Illustrate, when fluid separation apparatus 020 moves from the bottom up in hoistway 010, the operating principle and the present embodiment of packer accessory 210
That records is identical, and this embodiment is not repeated.In addition, the present embodiment is by taking fluid separation apparatus 020 works in hoistway 010 as an example
It is illustrated, but fluid separation apparatus provided in this embodiment 020 is also applied for other kinds of there is internal diameter to become suddenly
It works in the hoistway of small position (such as internal diameter caused by deforming because of hoistway becomes smaller suddenly).
Fluid separation apparatus provided in an embodiment of the present invention, the end outer surface of packer accessory in axial direction are biased face,
The direction biased face far from packer accessory is gradually radially inwardly extending vertically.In this way, when fluid separation apparatus passes through hoistway
When the position that internal diameter becomes smaller suddenly, the biased face of wherein one end of packer accessory is squeezed, and the axial thrust load of generation drives packer accessory
Axially movable until packer accessory the other end and support portion against.Using packer accessory and support portion against position as fulcrum, produce
Raw radial component radially-inwardly deflects one end where driving extruded bias inclined-plane.In this way, enabling packer accessory
It smoothly radially-inwardly shrinks, so that fluid separation apparatus can pass through the position that hoistway internal diameter becomes smaller suddenly.
The foregoing is merely section Examples of the invention, are not intended to restrict the invention, for art technology
For personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fluid separation apparatus characterized by comprising
Mandrel；
Support portion, two support portions are in axial direction oppositely arranged on the outer peripheral surface of the mandrel, two support portions
Between form storage space；
Multiple packer accessories, multiple packer accessories arrange that the packer accessory is located in the storage space, edge around the mandrel
The length of packer accessory described in axial direction is less than the length of the storage space, the end appearance of the packer accessory in axial direction
Face is biased face, and biased face described in the direction vertically far from the packer accessory is gradually radially inwardly extending；And
Biasing member, the biasing member is for driving the packer accessory to be moved radially outward；
Wherein, the packer accessory is configured to when the biased face of wherein one end is squeezed, described in the axial thrust load of generation drives
Packer accessory is axially movable until the other end and the support portion of the packer accessory are against the radial component of generation drives by crowded
One end where the bias inclined-plane of pressure radially-inwardly deflects.
2. fluid separation apparatus according to claim 1, it is characterised in that:
The biased face includes axially disposed the first biased face and the second biased face, and first biased face is relative to described
Axial end face of second biased face closer to the packer accessory；The radially inwardly extending trend of second biased face relative to
First biased face is gentler.
3. fluid separation apparatus according to claim 2, it is characterised in that:
In axial direction, second biased face is inclined-plane, and first biased face is arc surface.
4. fluid separation apparatus according to claim 1, it is characterised in that:
The mandrel is hollow structure, offers through hole on the mandrel；The fluid separation apparatus further includes locating part, institute
Stating locating part includes sequentially connected connecting pin, by section and positive stop end；It is described by section to run through the through hole；The connection
End is fixedly connected with the packer accessory；The positive stop end is located in the mandrel, and being configured to can not be by the through hole.
5. fluid separation apparatus according to claim 4, it is characterised in that:
In axial direction, the length of the through hole and the difference of the diameter by section be greater than the length of the storage space with
The difference of the length of the packer accessory.
6. fluid separation apparatus according to claim 4, it is characterised in that:
Along circumferential direction, the width of the through hole is slightly larger than the diameter by section.
7. fluid separation apparatus according to claim 4, it is characterised in that:
The positive stop end has the contact surface for contacting with the mandrel, and the contact surface is arc surface.
8. fluid separation apparatus according to claim 4, it is characterised in that:
Each packer accessory is connected at least two locating parts, and at least two locating parts are relative to the packer accessory
Axial midpoint be arranged symmetrically.
9. fluid separation apparatus according to claim 1, it is characterised in that:
The biasing member is the elastic component being arranged between the packer accessory and the mandrel；Each packer accessory with it is described
At least two biasing members, axial direction of at least two biasing members relative to the packer accessory are provided between mandrel
Midpoint is arranged symmetrically.
10. fluid separation apparatus according to claim 1, it is characterised in that: in axial direction, the axial direction of the packer accessory
End inner edge rounded corner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811359945.7A CN109519145B (en) | 2018-11-15 | 2018-11-15 | Fluid separation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811359945.7A CN109519145B (en) | 2018-11-15 | 2018-11-15 | Fluid separation device |
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| CN109519145A true CN109519145A (en) | 2019-03-26 |
| CN109519145B CN109519145B (en) | 2020-10-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898322A (en) * | 2021-11-16 | 2022-01-07 | 成都百胜野牛科技有限公司 | Natural gas well fluid separator |
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| CN2588044Y (en) * | 2002-11-28 | 2003-11-26 | 中国石油化工股份有限公司 | Packer for top of tail pipe |
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| CN107313739A (en) * | 2017-09-06 | 2017-11-03 | 刘书豪 | The production method of fluid separation apparatus, hoistway structure and oil or natural gas |
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|---|---|---|---|---|
| CN2588044Y (en) * | 2002-11-28 | 2003-11-26 | 中国石油化工股份有限公司 | Packer for top of tail pipe |
| CN101709632A (en) * | 2009-11-17 | 2010-05-19 | 中国石油集团长城钻探工程有限公司 | Rotary reducing expansion device |
| WO2014038956A1 (en) * | 2012-09-07 | 2014-03-13 | Aker Subsea As | Seal assembly |
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| CN107313739A (en) * | 2017-09-06 | 2017-11-03 | 刘书豪 | The production method of fluid separation apparatus, hoistway structure and oil or natural gas |
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| CN113898322A (en) * | 2021-11-16 | 2022-01-07 | 成都百胜野牛科技有限公司 | Natural gas well fluid separator |
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| CN109519145B (en) | 2020-10-30 |
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