CN207526482U - Underground throttle device - Google Patents
Underground throttle device Download PDFInfo
- Publication number
- CN207526482U CN207526482U CN201721225380.4U CN201721225380U CN207526482U CN 207526482 U CN207526482 U CN 207526482U CN 201721225380 U CN201721225380 U CN 201721225380U CN 207526482 U CN207526482 U CN 207526482U
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- gas nozzle
- slips
- sleeve
- seat
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- 238000012856 packing Methods 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 239000004576 sand Substances 0.000 claims abstract description 17
- 241001633942 Dais Species 0.000 claims description 39
- 210000000078 claw Anatomy 0.000 claims description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 38
- 230000000694 effects Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
Abstract
The utility model is related to choke technology fields, it is a kind of underground throttle device, it includes sand cap, packing element casing, sealing pushing sleeve, gas nozzle shear pin, lower rubber cylinder seat, packing element ontology, upper rubber tube seat, cone cap, delivers cap, give up pin and delivery connector, sand cap upper inner is set with sealing pushing sleeve, it seals pushing sleeve center bottom and is equipped with mounting groove, being installed with gas nozzle by gas nozzle shear pin in mounting groove blocks assembly；Pushing sleeve top is sealed to stretch out outside sand cap, middle part outer sheath is equipped with packing element casing, packing element outside of sleeve is set with lower rubber cylinder seat, packing element ontology, upper rubber tube seat and cone cap successively from the bottom to top, slips support set, annular cone and slips ontology are set with successively from the inside to the outside on the outside of lifting sleeve, are corresponded to slips ontology and slips support set above annular cone and are mounted.The utility model reasonable and compact in structure, easy to use, sealed reliable without salvaging, do not influence the progress of other underground work, have the characteristics that safe, laborsaving, easy, efficient.
Description
Technical field
The utility model is related to choke technology fields, are a kind of underground throttle devices.
Background technology
Downhole choke technology is exactly that the flow controller of certain specification is put in a certain depth oil pipe inner seat in underground, realizes and is saved in pit shaft
Pressure energy is transformed into kinetic energy, improves fluid-flow rate, the fluid after throttling is made to remain critical flow conditions by stream decompression,
Influence of the well head pressure fluctuation to shaft bottom is reduced, and makes full use of geothermal energy, the generation of hydrate is prevented, in natural gas extraction
In in order to be depressured, throttling, limit the production, underground throttle device usually is installed in Wellbore of Gas Wells, can be throttled by subsurface choke, reduces gas
Mouth top gas pressure destroys the formation condition of hydrate, achievees the purpose that prevent hydrate generation.Underground throttle device is with seat
Envelope mode difference is divided into as slip-type underground throttle and pre-set type underground throttling device.Due to being equipped with gas nozzle in flow controller, work as gas
When well needs to carry out other operations, need to salvage underground throttle device to come, otherwise underground throttle device is not communicated with up and down, Wu Fajin
The lower step operation of row.And the slips of slip-type underground throttle is easily stuck with tube inner wall, causes what gas well can not work normally
It happens.
Invention content
The utility model provides a kind of underground throttle device, overcomes the deficiency of the above-mentioned prior art, can effectively solve
The problem of duration existing for existing underground throttle device influences operation in follow-up well, is easily stuck and salvages difficulty.
The technical solution of the utility model is realized by following measures：A kind of underground throttle device, including sand cap,
Packing element casing, sealing pushing sleeve, gas nozzle shear pin, lower rubber cylinder seat, packing element ontology, upper rubber tube seat, cone cap, deliver cap, give up pin and
Connector is delivered, sand cap upper inner is set with sealing pushing sleeve, and sealing pushing sleeve center bottom is equipped with mounting groove, passes through in mounting groove
Gas nozzle shear pin is installed with gas nozzle and blocks assembly；It seals pushing sleeve top to stretch out outside sand cap, outside is set in the middle part of sealing pushing sleeve
There is packing element casing, packing element outside of sleeve is set with lower rubber cylinder seat, packing element ontology, upper rubber tube seat and cone cap successively from the bottom to top,
Lower rubber cylinder seat lower end and sand cap upper end are fixedly installed togather, and lower rubber cylinder seat lower inside is equipped with the first limited ring groove, corresponding
The first limited ring dais that can be matched with the first limited ring groove is fixed on the outside of the sealing pushing sleeve of first limited ring groove bottom position,
Sealing pushing sleeve can be prevented with respect under packing element casing by being equipped between on the inside of packing element lower end and on the outside of the sealing pushing sleeve of corresponding position
Sliding lock ring, packing element sleeve upper end are installed with the lock claw above upper packing element, and lock claw outer sheath is equipped with can be with its uplink
Cone cap, the upper end of the lower end of cone cap and upper rubber tube seat is fixedly installed togather, and upper rubber tube seat lower end inside is fixed with energy
To the interior limited ring dais of lock claw limiting；The first embedded annular groove, lock are equipped on the inside of the cone cap of corresponding lock claw top pawl flap position
Pawl lower outside is fixed with the second limited ring dais, and the second spacing ring is equipped on the inside of the cone cap of corresponding second limited ring dais position
Slot, lock claw inner sleeve are separated at least two cards equipped with lifting sleeve, lifting sleeve bottom by circumferential cannelure
Pawl valve, and claw valve seat is equipped with second on the inside of the top of sealing pushing sleeve, the lock claw of corresponding claw valve bottom end raised position and is embedded in
Annular groove；Supporting rod is set in lifting sleeve, supporting rod lower end inside is equipped with third limited ring dais, and lifting sleeve is set on the inside of upper end
There is the 4th limited ring dais that can be limited to third limited ring dais, supporting bar top stretches out outside lifting sleeve and is installed with delivery
Connector, lifting sleeve upper end are installed with delivery cap, deliver cap inside middle portion and pass through pin and the delivery connector fixed installation of giving up
Together；Slips support set, annular cone and slips ontology are set with successively from the inside to the outside on the outside of lifting sleeve, under annular cone is in
Narrow cone-shaped on width, the top of bottom end and cone cap is fixedly installed togather, and slips ontology lower end inside is equipped with and is sleeved on
Conical limit annular groove on the outside of annular cone, together with the slips ontology above corresponding annular cone is mounted with slips support set.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution：
The lock tooth of inclined upward inwardly, the sealing pushing sleeve outside of corresponding lock ring travel position can be equipped on the inside of above-mentioned lock ring
Equipped with the pawl that can be matched with above-mentioned lock tooth；It is respectively equipped with what is matched on the outside of lock ring and on the inside of the packing element casing of corresponding position
Latch.
The interior hexagonal flush end that inner end is held out against in lock claw can be equipped in the middle part of above-mentioned corresponding lock claw on the cone cap in outside to mark closely.
O-ring seals, lower rubber cylinder seat can be equipped on the outside of above-mentioned first limited ring dais between the lower rubber cylinder seat of corresponding position
The packing element set of O-ring seals, upper rubber tube seat inside and corresponding position is equipped between inside and the packing element outside of sleeve of corresponding position
O-ring seals are equipped between on the outside of pipe, it is close to be equipped with O shapes between packing element sleeve upper end inside and the sealing pushing sleeve outside of corresponding position
Seal, gas nozzle are equipped with O-ring seals between blocking on the inside of the sealing pushing sleeve of assembly upper outside and corresponding position.
Above-mentioned underground throttle device can further include deblocking shear pin, and slips support set outside and annular cone inside are by unsealing shear pin
It is fixedly installed togather, annular cone lower end inside is equipped with the 5th limited ring groove being located at below deblocking shear pin, corresponding 5th limit
The 6th limited ring groove is equipped on the outside of the slips support set of position annular groove lower end position, being equipped in the 6th limited ring groove can be to the 5th spacing ring
The baffle ring of slot limiting；Slips ontology upper end is installed with the fishing neck being sleeved on the outside of slips support set, corresponding fishing neck lower section
Slips support set on the outside of be fixed with the positive stop lug boss in slips ontology longitudinal opening, slips ontology lower end outside is fixed with outer
Limited ring dais, the slips outer body of corresponding positive stop lug boss outer fix are set with the energy hoop that externally limited ring dais uplink limits
Ring, garter spring inside and positive stop lug boss are fixed together, and being fixed on the outside of the slips support set above fishing neck can be to fishing neck uplink
The gear cap of limiting.
Above-mentioned gas nozzle, which blocks assembly, may include gas nozzle seat, plug, gas nozzle body and red copper pad, pass through gas nozzle on the outside of gas nozzle seat
Shear pin is fixedly mounted in mounting groove, and gas nozzle seat lower inside is equipped with embedding slot, and the bottom of embedding slot is installed with plug, is blocked up
Gas nozzle body and red copper pad are set with successively from the bottom to top in the embedding slot of head top.
The utility model reasonable and compact in structure, easy to use, sealed reliable without salvaging, do not influence other undergrounds
The progress of operation has the characteristics that safe, laborsaving, easy, efficient.
Description of the drawings
Sectional structure signal of the attached drawing 1 for the first half of the best embodiment of the utility model.
Schematic cross-sectional view of the attached drawing 2 for the lower half of the best embodiment of the utility model.
Coding in attached drawing is respectively：1 is sand cap, and 2 be packing element casing, and 3 is seal pushing sleeve, and 4 be gas nozzle shear pin, and 5 are
Lower rubber cylinder seat, 6 be packing element ontology, and 7 be upper rubber tube seat, and 8 be cone cap, and 9 is deliver cap, and 10 is deliver connector, and 11 be the first limit
Position land, 12 be lock ring, and 13 be lock claw, and 14 be cylinder of helping pull a cart, and 15 be claw valve, and 16 be supporting rod, and 17 be the second limited ring dais, 18
It is the 4th limited ring dais for third limited ring dais, 19,20 be pin of giving up, and 21 be slips support set, and 22 be annular cone, and 23 be slips
Ontology, 24 mark closely for interior hexagonal flush end, and 25 be O-ring seals, and 26 for deblocking shear pin 2,27 be baffle ring, and 28 be fishing neck, and 29 are
Positive stop lug boss, 30 be garter spring, and 31 be gear cap, and 32 be gas nozzle seat, and 33 be plug, and 34 be gas nozzle body, and 35 be red copper pad, and 36 be interior
Limited ring dais, 37 be outer limited ring dais.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the utility model, for ease of description, the description of the relative position relation of each component is according to specification
The Butut mode of attached drawing 1 is described, such as：The position relationship of forward and backward, upper and lower, left and right etc. is according to Figure of description 1
Butut direction come it is determining.
The utility model is further described with reference to embodiment and attached drawing：
As shown in attached drawing 1,2, the underground throttle device include sand cap 1, packing element casing 2, sealing pushing sleeve 3, gas nozzle shear pin 4,
Lower rubber cylinder seat 5 packing element ontology 6, upper rubber tube seat 7, cone cap 8, delivers cap 9, give up pin 20 and delivery connector 10, on sand cap 1
For portion's inner sleeve equipped with sealing pushing sleeve 3,3 center bottom of sealing pushing sleeve is equipped with mounting groove, is fixed and pacified by gas nozzle shear pin 4 in mounting groove
Assembly is blocked equipped with gas nozzle；3 top of pushing sleeve is sealed to stretch out outside sand cap 1,3 middle part outer sheath of sealing pushing sleeve is equipped with packing element casing 2,
2 outside of packing element casing is set with lower rubber cylinder seat 5, packing element ontology 6, upper rubber tube seat 7 and cone cap 8, lower rubber cylinder successively from the bottom to top
5 lower ends of seat and 1 upper end of sand cap are fixedly installed togather, and 5 lower inside of lower rubber cylinder seat is equipped with the first limited ring groove, correspond to first
3 outside of sealing pushing sleeve of limited ring groove bottom position is fixed with the first limited ring dais 11 that can be matched with the first limited ring groove,
Sealing pushing sleeve 3 can be prevented with respect to packing element casing by being equipped between 2 lower end inside of packing element casing and 3 outside of sealing pushing sleeve of corresponding position
2 lock rings 12 to glide, 2 upper end of packing element casing are installed with the lock claw 13 above upper packing element, and 13 outer sheath of lock claw is equipped with
Can be with the cone cap 8 of its uplink, the upper end of the lower end of cone cap 8 and upper rubber tube seat 7 is fixedly installed togather, under upper rubber tube seat 7
End inside is fixed with the interior limited ring dais 36 that can be limited to lock claw 13；In the cone cap 8 of 13 top pawl flap position of corresponding lock claw
Side is equipped with the first embedded annular groove, and 13 lower outside of lock claw is fixed with the second limited ring dais 17, corresponding second limited ring dais, 17 position
The inside of cone cap 8 be equipped with the second limited ring groove, 13 inner sleeve of lock claw passes through edge equipped with lifting sleeve 14,14 bottom of lifting sleeve
The cannelure of circle distribution is separated at least two claw valves 15, and claw valve 15 is in the top of sealing pushing sleeve 3, corresponding claw
13 inside of lock claw of 15 bottom end raised position of valve is equipped with the second embedded annular groove；Supporting rod 16 is set in lifting sleeve 14, is supported
16 lower end inside of bar is equipped with third limited ring dais 18, is equipped with third limited ring dais 18 can be limited on the inside of 14 upper end of lifting sleeve
4th limited ring dais 19,16 top of supporting rod, which is stretched out outside lifting sleeve 14 and is installed with, delivers connector 10, lifts sleeve 14
Upper end, which is installed with, delivers cap 9, delivers 9 inside middle portion of cap and is fixedly installed togather by giving up pin 20 with connector 10 is delivered；
14 outside of lifting sleeve is set with slips support set 21, annular cone 22 and slips ontology 23, annular cone 22 successively from the inside to the outside
In low wide and up narrow cone-shaped, the top of bottom end and cone cap 8 is fixedly installed togather, and 23 lower end inside of slips ontology is equipped with
22 outside conical limit annular groove of annular cone is sleeved on, the slips ontology 23 and slips support set 21 of corresponding 22 top of annular cone limit
Position is installed together.
In use, steel wire rope, wire rope socket, weighted lever, mechanical vibrator and delivery connector 10 are from top to bottom connected successively
It is connected together, then above-mentioned tool string is transferred to the appropriate depth of underground, then above carries steel wire rope, make annular cone 22 opposite
Slips ontology 23 moves up, and 23 holdfast of slips ontology is made to continue to pull up steel wire rope on tube inner wall, and pin 20 of giving up is cut, and delivers
Connector 10, supporting rod 16, lifting sleeve 14 and delivery cap 9 four climb away in succession with mechanical vibrator, complete action of giving up,
Sealing pushing sleeve 3 above formed perforation cavity, seal pushing sleeve 3 in well under the action of pressure difference on push rubber tube seat 5, make packing element
The gap of the compressed sealing oil pipe of ontology 6 and the utility model, sealing pushing sleeve 3 are stapled 12 lockings, and hold below afterwards in place
It is continuous to be pushed by down-hole pressure so that the utility model can remain sealing；When needing to carry out lower step underground work,
It can cut gas nozzle shear pin 4, gas nozzle blocks assembly and falls into sand cap 1, and gas can seal by building the pressure above well head
3 transiting inside of pushing sleeve ensure that the gas of maximum gauge passes through channel to the greatest extent so that without salvaging the utility model,
It can carry out subsequent underground work.The utility model reasonable and compact in structure, easy to use, sealed reliable, without salvaging,
The progress of other underground work is not influenced, is had the characteristics that safe, laborsaving, easy, efficient.
Above-mentioned underground throttle device can be made further optimization and/or improvements according to actual needs：
As shown in attached drawing 1,2,12 inside of lock ring is equipped with the lock tooth of inclined upward inwardly, 12 travel position of corresponding lock ring
3 outside of sealing pushing sleeve is equipped with the pawl that can be matched with above-mentioned lock tooth；12 outside of lock ring and 2 inside of packing element casing of corresponding position
It is respectively equipped with the latch to match.Passing through above-mentioned setting so that sealing pushing sleeve 3 can be stapled 12 lockings after compression uplink,
It will not move down, ensure that the sealing effect of ring cavity of the utility model to oil pipe and between it.
As shown in attached drawing 1,2, the cone cap 8 in corresponding 13 middle part outside of lock claw is held out against equipped with inner end in lock claw 13
Hexagonal flush end marks closely 24.Interior hexagonal flush end marks closely 24 setting, ensure that locking of the lock claw 13 to the slips support set 21 on the inside of it
Effect.
O shapes are equipped with as shown in attached drawing 1,2, between 11 outside of the first limited ring dais and the lower rubber cylinder seat 5 of corresponding position to seal
O-ring seals 25, upper 7 inside of rubber tube seat are equipped between 2 outside of packing element casing of circle 25,5 inside of lower rubber cylinder seat and corresponding position
O-ring seals 25 are equipped between 2 outside of packing element casing of corresponding position, 2 upper end of packing element casing inside is close with corresponding position
It seals between 3 outside of pushing sleeve equipped with O-ring seals 25, gas nozzle blocks 3 inside of sealing pushing sleeve of assembly upper outside and corresponding position
Between be equipped with O-ring seals 25.The setting of above-mentioned O-ring seals 25, ensure that the leakproofness inside the utility model, makes simultaneously
The top of sealing pushing sleeve 3 will not be entered by obtaining down-hole high pressure gas, and sealing pushing sleeve 3 can push rubber tube seat 5 and glue on continuous compression
Cylinder ontology 6 ensures the sealing effect and reliability of the utility model.
As shown in attached drawing 1,2, above-mentioned underground throttle device further includes deblocking shear pin 26,21 outside of slips support set and annular cone
22 insides are fixedly installed togather by unsealing shear pin 26, and 22 lower end inside of annular cone, which is equipped with, is located at 26 lower section of deblocking shear pin
5th limited ring groove, 21 outside of slips support set of corresponding 5th limited ring groove lower end position are equipped with the 6th limited ring groove, the 6th limit
The baffle ring 27 that can be limited to the 5th limited ring groove is equipped in the annular groove of position；23 upper end of slips ontology, which is installed with, is sleeved on slips support
The fishing neck 28 in 21 outside of set, 21 outside of slips support set of corresponding 28 lower section of fishing neck is fixed with opens positioned at 23 longitudinal direction of slips ontology
Positive stop lug boss 29 in mouthful, 23 lower end outside of slips ontology are fixed with outer limited ring dais 37,29 outer fix of corresponding positive stop lug boss
23 outer sheath of slips ontology equipped with can external limited ring dais 37 uplink limiting garter spring 30,30 inside of garter spring and positive stop lug boss 29
It is fixed together, 21 outside of slips support set of 28 top of fishing neck is fixed with the gear cap 31 that can be limited to 28 uplink of fishing neck.It needs
When unsealing, the lower Special fishing tool into oil pipe makes the bailer grab of fishing tool wedge fishing neck 28, then above puies forward salvaging work
Tool, slips ontology 23 after being limited by gear cap 31, take 21 uplink of slips support set and cut deblocking shear pin 26, simultaneously with its uplink
Lock claw 13 loses support rebound, and baffle ring 27 pulls annular cone 22, cone cap 8 and upper packing element successively with 21 uplink of slips support set
7 uplinks of seat, the rebound of packing element ontology 6 reset, depressurization.
As shown in attached drawing 1,2, gas nozzle blocks assembly and includes gas nozzle seat 32, plug 33, gas nozzle body 34 and red copper pad 35, gas
32 outside of mouth seat is fixedly mounted on by gas nozzle shear pin 4 in mounting groove, and 32 lower inside of gas nozzle seat is equipped with embedding slot, embedding slot
Bottom is installed with plug 33, and gas nozzle body 34 and red copper pad are set with successively from the bottom to top in the embedding slot of 33 top of plug
35.Above-mentioned setting, ensure that the plugging effect of the utility model, and gas nozzle seat 32 is fixedly mounted on mounting groove by gas nozzle shear pin 4
It is interior, gas nozzle closure assembly is suppressed convenient for subsequently suppressing, makes the utility model that there is larger inside latus rectum, ensures that follow-up underground is made
Industry is smoothed out.
More than technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
Claims (15)
1. a kind of underground throttle device, it is characterised in that including sand cap, packing element casing, sealing pushing sleeve, gas nozzle shear pin, lower rubber cylinder
Seat packing element ontology, upper rubber tube seat, cone cap, delivers cap, gives up and pin and deliver connector, and sand cap upper inner is set with sealing
Pushing sleeve, sealing pushing sleeve center bottom are equipped with mounting groove, and being installed with gas nozzle by gas nozzle shear pin in mounting groove blocks assembly；It is close
Pushing sleeve top is sealed to stretch out outside sand cap, in the middle part of sealing pushing sleeve outer sheath equipped with packing element casing, packing element outside of sleeve from the bottom to top according to
Secondary to be set with lower rubber cylinder seat, packing element ontology, upper rubber tube seat and cone cap, lower rubber cylinder seat lower end and sand cap upper end are fixedly mounted on
Together, lower rubber cylinder seat lower inside is equipped with the first limited ring groove, the sealing pushing sleeve outside of corresponding first limited ring groove bottom position
The first limited ring dais that can be matched with the first limited ring groove is fixed with, the sealing of packing element lower end inside and corresponding position pushes away
Being equipped between set outside can prevent from sealing pushing sleeve with respect to the lock ring that packing element casing glides, and packing element sleeve upper end, which is installed with, to be located at
Lock claw above upper packing element, lock claw outer sheath equipped with can with the cone cap of its uplink, the lower end of cone cap and upper rubber tube seat it is upper
End is fixedly installed togather, and upper rubber tube seat lower end inside is fixed with can be to interior limited ring dais that lock claw limits；Corresponding lock claw top
It is equipped with the first embedded annular groove on the inside of the cone cap of pawl flap position, lock claw lower outside is fixed with the second limited ring dais, and corresponding the
The second limited ring groove is equipped on the inside of the cone cap of two limited ring dais positions, lock claw inner sleeve is equipped with lifting sleeve, lifting sleeve bottom
Portion is separated at least two claw valves by circumferential cannelure, and claw valve seat is in the top of sealing pushing sleeve, corresponding
The second embedded annular groove is equipped on the inside of the lock claw of claw valve bottom end raised position；It lifts and supporting rod is set in sleeve, under supporting rod
End inside is equipped with third limited ring dais, and the 4th spacing ring that can be limited to third limited ring dais is equipped on the inside of lifting sleeve upper end
Platform, supporting bar top stretch out outside lifting sleeve and are installed with delivery connector, and lifting sleeve upper end is installed with delivery cap,
Cap inside middle portion is delivered to be fixedly installed togather with connector is delivered by giving up pin；It is set with successively from the inside to the outside on the outside of lifting sleeve
There are slips support set, annular cone and slips ontology, annular cone is in low wide and up narrow cone-shaped, the top of bottom end and cone cap
It is fixedly installed togather, slips ontology lower end inside, which is equipped with, is sleeved on conical limit annular groove on the outside of annular cone, corresponding annular cone
Together with slips ontology above body is mounted with slips support set.
2. underground throttle device according to claim 1, it is characterised in that the lock of inclined upward inwardly is equipped on the inside of lock ring
Tooth, the sealing pushing sleeve outside of corresponding lock ring travel position are equipped with the pawl that can be matched with above-mentioned lock tooth；It is on the outside of lock ring and corresponding
The latch to match is respectively equipped on the inside of the packing element casing of position.
3. underground throttle device according to claim 1 or 2, it is characterised in that set on the cone cap in outside in the middle part of corresponding lock claw
There is inner end to hold out against the interior hexagonal flush end in lock claw to mark closely.
4. underground throttle device according to claim 1 or 2, it is characterised in that the first limited ring dais outside and corresponding position
O-ring seals are equipped between lower rubber cylinder seat, being equipped with O shapes between the packing element outside of sleeve of corresponding position on the inside of lower rubber cylinder seat seals
Circle, is equipped with O-ring seals on the inside of upper rubber tube seat between the packing element outside of sleeve of corresponding position, on the inside of packing element sleeve upper end and right
O-ring seals are equipped between answering on the outside of the sealing pushing sleeve of position, the sealing that gas nozzle blocks assembly upper outside and corresponding position pushes away
Set is equipped with O-ring seals between inside.
5. underground throttle device according to claim 3, it is characterised in that on the outside of the first limited ring dais and under corresponding position
O-ring seals are equipped between rubber tube seat, being equipped with O shapes between the packing element outside of sleeve of corresponding position on the inside of lower rubber cylinder seat seals
Circle, is equipped with O-ring seals on the inside of upper rubber tube seat between the packing element outside of sleeve of corresponding position, on the inside of packing element sleeve upper end and right
O-ring seals are equipped between answering on the outside of the sealing pushing sleeve of position, the sealing that gas nozzle blocks assembly upper outside and corresponding position pushes away
Set is equipped with O-ring seals between inside.
6. according to the underground throttle device described in claims 1 or 2 or 5, it is characterised in that deblocking shear pin is further included, outside slips support set
It is fixedly installed togather on the inside of side and annular cone by unsealing shear pin, annular cone lower end inside, which is equipped with, to be located under deblocking shear pin
5th limited ring groove of side corresponds to and the 6th limited ring groove is equipped on the outside of the slips support set of the 5th limited ring groove lower end position, and the 6th
The baffle ring that can be limited to the 5th limited ring groove is equipped in limited ring groove；Slips ontology upper end, which is installed with, is sleeved on slips support set
The fishing neck in outside corresponds to and is fixed with the limit convex in slips ontology longitudinal opening on the outside of the slips support set below fishing neck
Platform, slips ontology lower end outside are fixed with outer limited ring dais, and the slips outer body of corresponding positive stop lug boss outer fix is set with
The energy garter spring that externally limited ring dais uplink limits, garter spring inside and positive stop lug boss are fixed together, and the slips above fishing neck supports
Set outside is fixed with the gear cap that can be limited to fishing neck uplink.
7. underground throttle device according to claim 3, it is characterised in that further include deblocking shear pin, slips support set outside and ring
It is fixedly installed togather by unsealing shear pin on the inside of shape cone, annular cone lower end inside is equipped with the be located at below deblocking shear pin
Five limited ring grooves, the slips support set outside of corresponding 5th limited ring groove lower end position are equipped with the 6th limited ring groove, the 6th spacing ring
The baffle ring that can be limited to the 5th limited ring groove is equipped in slot；Slips ontology upper end, which is installed with, to be sleeved on the outside of slips support set
Fishing neck corresponds to and is fixed with the positive stop lug boss in slips ontology longitudinal opening on the outside of the slips support set below fishing neck, blocks
Watt ontology lower end outside is fixed with outer limited ring dais, and the slips outer body of corresponding positive stop lug boss outer fix is set with can be externally
The garter spring of limited ring dais uplink limiting, garter spring inside and positive stop lug boss are fixed together, on the outside of the slips support set above fishing neck
It is fixed with the gear cap that can be limited to fishing neck uplink.
8. underground throttle device according to claim 4, it is characterised in that further include deblocking shear pin, slips support set outside and ring
It is fixedly installed togather by unsealing shear pin on the inside of shape cone, annular cone lower end inside is equipped with the be located at below deblocking shear pin
Five limited ring grooves, the slips support set outside of corresponding 5th limited ring groove lower end position are equipped with the 6th limited ring groove, the 6th spacing ring
The baffle ring that can be limited to the 5th limited ring groove is equipped in slot；Slips ontology upper end, which is installed with, to be sleeved on the outside of slips support set
Fishing neck corresponds to and is fixed with the positive stop lug boss in slips ontology longitudinal opening on the outside of the slips support set below fishing neck, blocks
Watt ontology lower end outside is fixed with outer limited ring dais, and the slips outer body of corresponding positive stop lug boss outer fix is set with can be externally
The garter spring of limited ring dais uplink limiting, garter spring inside and positive stop lug boss are fixed together, on the outside of the slips support set above fishing neck
It is fixed with the gear cap that can be limited to fishing neck uplink.
9. underground throttle device according to claim 1 or 2, it is characterised in that gas nozzle block assembly include gas nozzle seat, plug,
Gas nozzle body and red copper pad, gas nozzle seat outside are fixedly mounted on by gas nozzle shear pin in mounting groove, and gas nozzle seat lower inside is equipped with
Embedding slot, the bottom of embedding slot are installed with plug, and gas nozzle sheet is set with successively from the bottom to top in the embedding slot above plug
Body and red copper pad.
10. underground throttle device according to claim 3, it is characterised in that gas nozzle blocks assembly and includes gas nozzle seat, plug, gas
Mouth ontology and red copper pad, gas nozzle seat outside are fixedly mounted on by gas nozzle shear pin in mounting groove, and gas nozzle seat lower inside is equipped with embedding
Tankage, the bottom of embedding slot are installed with plug, and gas nozzle body is set with successively from the bottom to top in the embedding slot above plug
With red copper pad.
11. underground throttle device according to claim 4, it is characterised in that gas nozzle blocks assembly and includes gas nozzle seat, plug, gas
Mouth ontology and red copper pad, gas nozzle seat outside are fixedly mounted on by gas nozzle shear pin in mounting groove, and gas nozzle seat lower inside is equipped with embedding
Tankage, the bottom of embedding slot are installed with plug, and gas nozzle body is set with successively from the bottom to top in the embedding slot above plug
With red copper pad.
12. underground throttle device according to claim 5, it is characterised in that gas nozzle blocks assembly and includes gas nozzle seat, plug, gas
Mouth ontology and red copper pad, gas nozzle seat outside are fixedly mounted on by gas nozzle shear pin in mounting groove, and gas nozzle seat lower inside is equipped with embedding
Tankage, the bottom of embedding slot are installed with plug, and gas nozzle body is set with successively from the bottom to top in the embedding slot above plug
With red copper pad.
13. underground throttle device according to claim 6, it is characterised in that gas nozzle blocks assembly and includes gas nozzle seat, plug, gas
Mouth ontology and red copper pad, gas nozzle seat outside are fixedly mounted on by gas nozzle shear pin in mounting groove, and gas nozzle seat lower inside is equipped with embedding
Tankage, the bottom of embedding slot are installed with plug, and gas nozzle body is set with successively from the bottom to top in the embedding slot above plug
With red copper pad.
14. underground throttle device according to claim 7, it is characterised in that gas nozzle blocks assembly and includes gas nozzle seat, plug, gas
Mouth ontology and red copper pad, gas nozzle seat outside are fixedly mounted on by gas nozzle shear pin in mounting groove, and gas nozzle seat lower inside is equipped with embedding
Tankage, the bottom of embedding slot are installed with plug, and gas nozzle body is set with successively from the bottom to top in the embedding slot above plug
With red copper pad.
15. underground throttle device according to claim 8, it is characterised in that gas nozzle blocks assembly and includes gas nozzle seat, plug, gas
Mouth ontology and red copper pad, gas nozzle seat outside are fixedly mounted on by gas nozzle shear pin in mounting groove, and gas nozzle seat lower inside is equipped with embedding
Tankage, the bottom of embedding slot are installed with plug, and gas nozzle body is set with successively from the bottom to top in the embedding slot above plug
With red copper pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721225380.4U CN207526482U (en) | 2017-09-22 | 2017-09-22 | Underground throttle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721225380.4U CN207526482U (en) | 2017-09-22 | 2017-09-22 | Underground throttle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526482U true CN207526482U (en) | 2018-06-22 |
Family
ID=62569081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721225380.4U Withdrawn - After Issue CN207526482U (en) | 2017-09-22 | 2017-09-22 | Underground throttle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526482U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503718A (en) * | 2017-09-22 | 2017-12-22 | 中国石油集团西部钻探工程有限公司 | Underground throttle device |
| CN109057761A (en) * | 2018-08-14 | 2018-12-21 | 哈尔滨艾拓普科技有限公司 | A kind of natural gas well underground throttle device of automatically controlled dispensing and salvaging |
| CN109057749A (en) * | 2018-07-30 | 2018-12-21 | 中国石油天然气股份有限公司 | A kind of easy fishing slip formula underground throttle device |
| CN111206899A (en) * | 2020-01-07 | 2020-05-29 | 青岛理工大学 | Spring-driven step-by-step axial extrusion throttling device with double rubber cylinders |
| CN107503718B (en) * | 2017-09-22 | 2024-04-26 | 中国石油天然气集团有限公司 | Downhole choke |
-
2017
- 2017-09-22 CN CN201721225380.4U patent/CN207526482U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503718A (en) * | 2017-09-22 | 2017-12-22 | 中国石油集团西部钻探工程有限公司 | Underground throttle device |
| CN107503718B (en) * | 2017-09-22 | 2024-04-26 | 中国石油天然气集团有限公司 | Downhole choke |
| CN109057749A (en) * | 2018-07-30 | 2018-12-21 | 中国石油天然气股份有限公司 | A kind of easy fishing slip formula underground throttle device |
| CN109057761A (en) * | 2018-08-14 | 2018-12-21 | 哈尔滨艾拓普科技有限公司 | A kind of natural gas well underground throttle device of automatically controlled dispensing and salvaging |
| CN109057761B (en) * | 2018-08-14 | 2020-09-29 | 哈尔滨艾拓普科技有限公司 | Natural gas well underground throttle for electric control throwing and fishing |
| CN111206899A (en) * | 2020-01-07 | 2020-05-29 | 青岛理工大学 | Spring-driven step-by-step axial extrusion throttling device with double rubber cylinders |
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Effective date of registration: 20201104 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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Granted publication date: 20180622 Effective date of abandoning: 20240426 |
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