CN208073450U - Suspension type layered water injection tool - Google Patents
Suspension type layered water injection tool Download PDFInfo
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- CN208073450U CN208073450U CN201820274298.9U CN201820274298U CN208073450U CN 208073450 U CN208073450 U CN 208073450U CN 201820274298 U CN201820274298 U CN 201820274298U CN 208073450 U CN208073450 U CN 208073450U
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Abstract
A kind of suspension type layered water injection tool, including the upper box cupling, upper containment structure, water structure and the lower containment structure that are sequentially connected from top to bottom, wherein：Upper containment structure, has the first central tube being connected with upper box cupling, and being arranged with can radially set first on the first central tube sets packing element；Water structure has the water filling connecting cylinder being connected with upper containment structure, and water distribution main body is connected on water filling connecting cylinder, and water distribution main body has what is be connected with the first central tube to match aquaporin, passageway bridge is formed between water distribution main body and water filling connecting cylinder；Lower containment structure, has the second central tube being connected with water structure, and being arranged with can radially set second on the second central tube sets packing element；Wherein, in the state that water injection tool is caught in water structure, the first central tube is connected by passageway bridge with the second central tube.The suspension type layered water injection tool, can effectively set, and the purpose for realizing seperated layer water injection can be docked with water injection tool.
Description
Technical field
The utility model is related to field of petroleum exploitation more particularly to a kind of suspension type layered water injection tools.
Background technology
Currently, Deep tight reservoir thin oil, high pour point oil reservoir waterflooding extraction are the modes of main supplement stratum energy at present,
With the features such as injection pressure height, injection discharge capacity is small.
There is following two aspect in the high-voltage layering injection used in the past：First, string creep, vibrations are seriously, work as well depth
After 1500m, injection string can occur significantly to shake, cause packer wriggle or vibrations, destroy have built up it is close
Envelope mechanism, or even destroy packing element；Second is that oil pipe stress is flexible serious, includes mainly water injection pressure and thermal stress, used in the past
Compensation anchor tool cannot prevent completely the elastic telescopic variation of oil pipe near packer, in turn result in packer as oil pipe is stretched
It contracts and wriggles up and down, cause to be destroyed；Third, with the increase of well depth, distributor surveys modulation and obtains very difficult, shows as oil
Do not enter under instrument caused by pipe compressive deformation and the larger caused instrument docking success rate of deep-well hole deviation is low.
For these reasons, the high-voltage layering injection technology implementation term of validity is short, and application effect is poor.
Utility model content
The purpose of this utility model is to provide a kind of suspension type layered water injection tool, can effectively set, and energy and water filling
Tool accurately docks the purpose for realizing seperated layer water injection.
Following technical proposal can be used to realize in the above-mentioned purpose of the utility model：
The utility model provides a kind of suspension type layered water injection tool, including be sequentially connected from top to bottom upper box cupling, on
Containment structure, water structure and lower containment structure, wherein：
The upper containment structure has the first central tube being connected with the upper box cupling, is arranged on first central tube
There is can radially set first to set packing element；
The water structure has the water filling connecting cylinder being connected with the upper containment structure, connects on the water filling connecting cylinder
Be connected to water distribution main body, the water distribution main body has an aquaporin of matching being connected with first central tube, the water distribution main body with
It is formed with passageway bridge between the water filling connecting cylinder；
The lower containment structure has the second central tube being connected with the water structure, is covered on second central tube
Packing element is set equipped with can radially set second；
Wherein, in the state of being caught in water injection tool in the water structure, first central tube passes through the bridge-type
Channel is connected with second central tube.
In the embodiment of the utility model, it is additionally provided with and is threaded in the water distribution main body in the water structure
Concentric movable cylinder, one end of the concentric movable cylinder is equipped with movable water nozzle, and the activity water nozzle can match aquaporin phase with described
Connection, the concentric movable cylinder have the rotation card slot that can be clamped with the water injection tool.
In the embodiment of the utility model, the water distribution main body has the insertion being inserted into the water filling connecting cylinder
Cylinder forms annular waterflood path, is formed on the outer wall of the water distribution main body between the insertion tube and the water filling connecting cylinder
The axial notch being connected with second central tube, the annular waterflood path are connected with the axial notch, the bridge
Formula channel is made of the annular waterflood path and the axial notch.
In the embodiment of the utility model, rubber tube seat is arranged on first central tube, described first sets glue
Jacket casing is located at the rubber tube seat, and centrum and hypocentrum are also socketed in the rubber tube seat, and the upper centrum is located at described first
The top of packing element is set, the hypocentrum is located at the described first lower section for setting packing element, and the top of the upper centrum is arranged with
The lower part of slips, the hypocentrum is arranged with lower slips.
In the embodiment of the utility model, the upper containment structure, which also has, can make described first to set packing element radial direction
The first piston structure set, the first piston structure include：
Stepping stops lock tube, is set in the rubber tube seat, and the upper end that the stepping stops lock tube is abutted with the lower slips,
The stepping, which stops lock tube, has the pawl structure that can be set with the rubber tube seat card；
First piston is set in the rubber tube seat, and the upper end of the first piston is connected to the stepping and stops lock tube；
First cylinder sleeve is set on the first piston and is connected with the first piston by the first shear pin, institute
The upper end for stating the first cylinder sleeve is connected to the stepping and stops lock tube, and the lower end of first cylinder sleeve is connected with the first lower contact, described
The lower end of first central tube is connected in first lower contact；
Wherein, first central tube is equipped with the first pressure transmission hole, first lower contact, the first piston and described
The first hydraulic cavities, first pressure transmission hole and the first hydraulic cavities phase are formed between first cylinder sleeve and first central tube
Connection.
In the embodiment of the utility model, the lower containment structure, which has, can make described second to set packing element radially seat
The second piston structure of envelope, the second piston structure include：
Pressure cap, is set on second central tube and is connected to described second and set packing element, and described second sets packing element
Upper end be connected to the water filling connecting cylinder；
Second piston is set on second central tube, and the upper end of the second piston is connected to described by pressure cap
Second sets packing element；
Second cylinder sleeve is set in the second piston, and the upper end of second cylinder sleeve is connected to the pressure cap, and described
The lower end of two cylinder sleeves is connected with the second lower contact, and second lower contact is connected with second central tube；
Wherein, second central tube is equipped with the second pressure transmission hole, second lower contact, the second piston and described
The second hydraulic cavities, second pressure transmission hole and the second hydraulic cavities phase are formed between second cylinder sleeve and second central tube
Connection.
In the embodiment of the utility model, also there is the second piston structure lock ring, the lock ring to be folded in institute
It states between the second central tube and the second piston, the lock ring is connected by the second shear pin with the pressure cap.
In the embodiment of the utility model, the lower end of first central tube is formed with spring claw tube, the spring claw tube
It is made of the spaced multiple shrapnels of circumferencial direction along first central tube, the spring claw tube is fastened on by unlocking sleeve
In first lower contact.
In the embodiment of the utility model, third shearing is connected between the unlocking sleeve and first lower contact
Pin.
In the embodiment of the utility model, described first, which sets packing element and described second, sets packing element by multiple glue
Cylinder and the spacer ring composition being folded between adjacent two packing element.
The characteristics of suspension type layered water injection tool of the utility model and advantage are：The suspension type layered water injection tool can
It effectively sets, compared with conventional art, eliminates oil pipe connection, avoid pipe string and wriggle, shake, insulated caused by stress deformation
Device deblocking failure；In addition, the suspension type layered water injection tool increases water injection tool tripping in space, pass through the rotation of water structure
Card slot reduces the docking difficulty of water injection tool, improves docking success rate, and then improves the term of validity of separate injection tubing string and have
Effect property improves Development Response of Oilfield.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the suspension type layered water injection tool of the utility model.
Fig. 2 is the structural schematic diagram of the upper containment structure of the utility model.
Fig. 3 is the structural schematic diagram of the water structure of the utility model.
Fig. 4 is the structural schematic diagram of the lower containment structure of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figures 1 to 4, the utility model provides a kind of suspension type layered water injection tool comprising from top to bottom according to
Secondary connected upper box cupling 1, upper containment structure 2, water structure 3 and lower containment structure 4, wherein：The upper containment structure 2 have with
The first connected central tube 21 of the upper box cupling 1 is arranged with can radially set first on first central tube 21 and sets glue
Cylinder 22；The water structure 3 has the water filling connecting cylinder 31 that is connected with the upper containment structure 2, on the water filling connecting cylinder 31
It is connected with water distribution main body 32, the water distribution main body 32 has what is be connected with first central tube 21 to match aquaporin 321, described
It is formed with passageway bridge 33 between water distribution main body 32 and the water filling connecting cylinder 31；The lower containment structure 4 has and the note
The second connected central tube 41 of water-bound 3 is arranged with can radially set second on second central tube 41 and sets packing element 42；
Wherein, in the state of being caught in water injection tool in the water structure 3, first central tube 21 passes through the passageway bridge
33 are connected with second central tube 41.
Specifically, upper box cupling 1 is mainly used for connecting with other necessary functional downhole tools, such as oil pipe, hydraulic pressure are lost
Hand, power-driven release and reversing tool etc..
Upper containment structure 2 has the first central tube 21, and first, which sets packing element 22, is set on the first central tube 21, this first
Setting packing element 22 has multiple packing elements 221 and multiple spacer rings 222, between the packing element 221 being disposed adjacent two-by-two sandwiched there are one every
Ring 222, the spacer ring 222 can play the role of limit；In the present embodiment, the upper end of first central tube 21 passes through slip spider
211 are connected with upper box cupling 1.In the present invention, rubber tube seat 212, the upper end of rubber tube seat 212 are arranged on the first central tube 21
It is folded between the first central tube 21 and slip spider 211, this first sets packing element 22 and be set in rubber tube seat 212, the rubber tube seat
Centrum 213 and hypocentrum 214 are also socketed on 212, centrum 213 is located at the first top for setting packing element 22 on this, passes through
It sets pin 2131 to be connected in rubber tube seat 212, which is located at the first lower section for setting packing element 22, by setting
Pin 2141 is connected in rubber tube seat 212, and top of centrum 213 is arranged with upper slips 215 on this, the upper end of the upper slips 215
Be connected to slip spider 211, the upper slips 215 can the conical surface of upper centrum 213 effect under radial outward dilations, the hypocentrum 214
Lower part be arranged with lower slips 216, the lower slips 216 can the conical surface of hypocentrum 214 effect under radial outward dilations.
Further, on this containment structure 2 also have first can be made to set the first piston structure that packing element 22 is radially set
23, which stops lock tube 231, first piston 232 and the first cylinder sleeve 233 including stepping, wherein：Stepping stops lock tube
231 are set in rubber tube seat 212, and the upper end is abutted with lower slips 216, the stepping stop lock tube 231 have can be with rubber tube seat 212
Block the pawl structure 2311 set, when setting, first piston 232 pushes stepping to stop lock tube 231 and moves up, pawl structure 2311
The stepping can be stopped to lock tube 231 and lock any position in rubber tube seat 212, ensure the first hydraulic pressure of 232 lower end of first piston
It is still set after pressure venting in chamber 218 intact；The first piston 232 sealing is set in rubber tube seat 212, the first piston
232 upper end is connected to stepping and stops lock tube 231；First cylinder sleeve 233 is set on first piston 232 and by the first shear pin
Nail 234 is connected with first piston 232, and the upper end of first cylinder sleeve 233 is connected to stepping and stops lock tube 231, first cylinder sleeve 233
Lower end is connected with the first lower contact 235, and the lower end of first central tube 21 is connected in the first lower contact 235；Wherein, this is in first
Heart pipe 21 is equipped with the first pressure transmission hole 217, first lower contact 235, first piston 232 and the first cylinder sleeve 233 and the first center
The first hydraulic cavities 218 are formed between pipe 21, which is connected with the first hydraulic cavities 218.In the present embodiment
In, between first piston 232 and rubber tube seat 212, between first piston 232 and the first cylinder sleeve 233 and the first lower contact
235 and first are respectively equipped with multiple O-ring seals between cylinder sleeve 233.
In an embodiment of the utility model, the lower end of first central tube 21 is formed with spring claw tube 219, the elastic claw
Pipe 219 is made of the spaced multiple shrapnels of circumferencial direction along the first central tube 21, which passes through unlocking sleeve
24 are fastened in the first lower contact 235.In the present embodiment, which is threaded through in the first central tube 21, passes through unlock
Spring claw tube 219 is pressed in the first lower contact 235 by set 24, and third is connected between the unlocking sleeve 24 and the first lower contact 235
Shear pin 241.The unlocking sleeve 24 limits the position of spring claw tube 219 before being used to unseal.
The water structure 3 is the component to oil reservoir water distribution, has the water filling connecting cylinder 31 to socket-connect and water distribution main body
32, the upper end of the water filling connecting cylinder 31 is connected by connector 34 with the first lower contact 235, and the lower end of the water distribution main body 32 connects
It is connected to connector 36.The water distribution main body 32 is substantially in cylinder barrel shaped, and the upper end is formed with the insertion being inserted into water filling connecting cylinder 31
Cylinder 322, the lower end of the water distribution main body 32 have what is be connected with the first central tube 21 to match aquaporin 321, should be with aquaporin 321
The radial through-hole being opened in water distribution main body 32；In the present embodiment, it is formed between the water distribution main body 32 and water filling connecting cylinder 31
There is passageway bridge 33, specifically, it is formed with annular waterflood path 331 between the insertion tube 322 and water filling connecting cylinder 31, the water distribution
The axial notch 332 being connected with the second central tube 41 of lower containment structure 4, the annular water filling are formed on the outer wall of main body 32
Channel 331 is connected with axial notch 332, and the passageway bridge 33 is i.e. for by 332 groups of ring-shaped pouring aquaporin 331 and axial notch
At channel.
Further, the concentric movable cylinder 35 being threaded in water distribution main body 32 is additionally provided in the water distribution main body 32, it should
The lower end of activity cylinder 35 is equipped with movable water nozzle 351 with one heart, which can be connected with aquaporin 321, in this implementation
In example, which has multiple eyelets, and when concentric movable cylinder 35 rotates, the activity water nozzle 351 is logical corresponding to water distribution
The perforation hole area in road 321 changes, and then can realize the purpose of flow-rate adjustment.The concentric movable cylinder 35 has can be with water filling work
The rotation card slot 352 for having clamping, by the rotation card slot 352, it can be achieved that the mesh that water injection tool is accurately docked with water structure 3
's.
The lower containment structure 4 has the second central tube 41 and what is be set on the second central tube 41 second set packing element
42, this second sets packing element 42 and has multiple packing elements 421 and multiple spacer rings 422, presss from both sides between the packing element 421 being disposed adjacent two-by-two
If there are one spacer ring 422, which can play the role of limit, the upper end of second central tube 41 by connecting cylinder 43 with
The connector 36 of water structure 3 is connected.
Further, which, which also has, can make second to set the second piston structure that packing element 42 is radially set
43, which includes pressure cap 431, second piston 432 and the second cylinder sleeve 433, wherein：Pressure cap 431 is set in
On two central tubes 41 and it is connected to the second lower end for setting packing element 42, the second upper end for setting packing element 42 is connected to connecting cylinder 43；
Second piston 432 is set on the second central tube 41, and the upper end of the second piston 432 is connected to pressure cap 431；Second cylinder sleeve
433 are set in second piston 432, and the upper end of second cylinder sleeve 433 is connected to pressure cap 431, and the lower end of second cylinder sleeve 433 connects
It is connected to the second lower contact 435, which is connected with the second central tube 41；Wherein, it is set on second central tube 41
There is the second pressure transmission hole 411, shape between second lower contact 435, second piston 432 and the second cylinder sleeve 433 and the second central tube 41
At there is the second hydraulic cavities 412, which is connected with the second hydraulic cavities 412.
Further, which also has a lock ring 434, the lock ring 434 be folded in the second central tube 41 with
Between second piston 432, which is connected by the second shear pin 435 with pressure cap 431.
The course of work of the suspension type layered water injection tool is as follows：
First, which is connected to tubing string lower end, upper box cupling 1 upward, the second lower contact
435 downward, and the second lower contact 435 can connect the common ball seat cylinder of oil field injection string, later in lower going-into-well.
Secondly, it reaches after specifying perforated interval, first launches bead into tubing string, bead is located supreme with gravity downlink
In the ball seat cylinder stated, and then block flow channels inside pipe string.
Later, it is suppressed into tubing string, at this moment needs that three pressure ranks are set in advance, be lower pressure rank first, reach
To after the pressure, which passes to first piston 232 by the first pressure transmission hole 217 and first hydraulic cylinder 218, first lives at this time
Plug 232 starts uplinks, and the first shear pin 234 cut, initiate to first set packing element 22 set action, make upper slips
215 and 216 diameter of lower slips outward to sting cutting ferrule pipe, then set pin 2131 and set pin 2141 and cut, first sits
Sealing cylinder 22 is extruded from radial and extends out, and then completes once to set；Followed by elevated pressures rank should after reaching the pressure
The pressure of higher level can pass to second piston 432 by the second pressure transmission hole 411 and second hydraulic cylinder 412, second live at this time
Plug 432 starts uplink, and the second shear pin 435 is cut, and initiates the action that sets for setting packing element 42 to second, squeezes second and sits
Sealing cylinder 42 makes its radial direction extend out, and completion is set for the second time, and at this moment the suspension type layered water injection tool has been stung with bobbin seal tightly.
At this point, improving pressure again arrives maximum pressure rank, the ball seat in above-mentioned ball seat cylinder is due to pin endurance is higher than shearing force
It is cut, ball seat is fallen into pit shaft, and then restores flow channels in pipe string.
Next, tripping in oil field is often used in measurement and adjustment instrument device (namely water injection tool) to water structure 3, measurement and adjustment instrument device extends out
Spring detent is docked with rotation card slot 352, is rotated by the motor of measurement and adjustment instrument device, drives concentric movable cylinder 35 to rotate, and then adjust
Eyelet on movable water nozzle 351 and with the area of passage between aquaporin 321, and then adjust injection allocation flow.
Then, start water filling, required water is injected into pit shaft, injection water flows to the water structure 3 along pit shaft, finally leads to
It crosses with aquaporin 321 radially into stratum, and the oil reservoir below the stratum, the injection water is by passageway bridge 33 to flowing down
Enter in the second central tube 41.
When needing replacing the suspension type layered water injection tool, the common fishing tool in tripping in oil field first into pit shaft,
Bead is put into after docking successfully, bead, to falling on unlocking sleeve 24, is suppressed, when pressure reaches setting value along pit shaft into pit shaft
When, third shear pin 241 is cut, and unlocking sleeve 24 loses support, and bead pushes unlocking sleeve 24 to drop downward into shaft bottom.Above carry
Fishing string, 21 uplink of the first central tube, spring claw tube 219 is radially withdrawn, and first sets packing element 22, upper slips 215 and lower slips
216 lose support and withdraw, and are separated from casing, complete deblocking, then above carry fishing string, completion tool goes out well.
The suspension type layered water injection tool of the utility model eliminates oil pipe connection, avoids pipe compared with conventional art
String wriggles, shakes, removing seal for packer fails caused by stress deformation, on the other hand increases water injection tool tripping in space, reduces
The docking difficulty of water injection tool, and then improve the term of validity and validity of separate injection tubing string, improve Development Response of Oilfield.This reality
Concentric injection allocation mechanism is used with novel, survey is improved and adjusts docking success rate.
The above descriptions are merely exemplary embodiments of the present utility model, is not limited to the model of the utility model
It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the design and principle of the utility model
Change and change, the range of the utility model protection should all be belonged to.
Claims (10)
1. a kind of suspension type layered water injection tool, which is characterized in that including upper box cupling, the upper packing knot being sequentially connected from top to bottom
Structure, water structure and lower containment structure, wherein：
The upper containment structure has the first central tube being connected with the upper box cupling, energy is arranged on first central tube
First radially set sets packing element；
The water structure has the water filling connecting cylinder being connected with the upper containment structure, is connected on the water filling connecting cylinder
Water distribution main body, the water distribution main body have be connected with first central tube match aquaporin, the water distribution main body with it is described
It is formed with passageway bridge between water filling connecting cylinder；
The lower containment structure has the second central tube being connected with the water structure, is arranged on second central tube
Can radially set second sets packing element；
Wherein, in the state of being caught in water injection tool in the water structure, first central tube passes through the passageway bridge
It is connected with second central tube.
2. suspension type layered water injection tool as described in claim 1, which is characterized in that be additionally provided with screw thread in the water structure
One end of the concentric movable cylinder being connected in the water distribution main body, the concentric movable cylinder is equipped with movable water nozzle, the movable water
Mouth can be connected with described with aquaporin, and the concentric movable cylinder has the rotation card slot that can be clamped with the water injection tool.
3. suspension type layered water injection tool as described in claim 1, which is characterized in that the water distribution main body has described in insertion
Insertion tube in water filling connecting cylinder forms annular waterflood path, the water distribution between the insertion tube and the water filling connecting cylinder
The axial notch being connected with second central tube, the annular waterflood path and the axial direction are formed on the outer wall of main body
Groove is connected, and the passageway bridge is made of the annular waterflood path and the axial notch.
4. suspension type layered water injection tool as described in claim 1, which is characterized in that be arranged with glue on first central tube
Cylinder base, described first, which sets packing element, is set in the rubber tube seat, and centrum and hypocentrum are also socketed in the rubber tube seat, described
Upper centrum is located at the described first top for setting packing element, and the hypocentrum is located at the described first lower section for setting packing element, it is described on
The top of centrum is arranged with upper slips, and the lower part of the hypocentrum is arranged with lower slips.
5. suspension type layered water injection tool as claimed in claim 4, which is characterized in that the upper containment structure also has and can make
Described first sets the first piston structure that packing element is radially set, and the first piston structure includes：
Stepping stops lock tube, is set in the rubber tube seat, and the upper end that the stepping stops lock tube is abutted with the lower slips, described
Stepping, which stops lock tube, has the pawl structure that can be set with the rubber tube seat card；
First piston is set in the rubber tube seat, and the upper end of the first piston is connected to the stepping and stops lock tube；
First cylinder sleeve is set on the first piston and is connected with the first piston by the first shear pin, and described
The upper end of one cylinder sleeve is connected to the stepping and stops lock tube, and the lower end of first cylinder sleeve is connected with the first lower contact, and described first
The lower end of central tube is connected in first lower contact；
Wherein, first central tube is equipped with the first pressure transmission hole, first lower contact, the first piston and described first
The first hydraulic cavities are formed between cylinder sleeve and first central tube, first pressure transmission hole is connected with first hydraulic cavities
It is logical.
6. suspension type layered water injection tool as described in claim 1, which is characterized in that the lower containment structure have can make institute
It states second and sets the second piston structure that packing element is radially set, the second piston structure includes：
Pressure cap, is set on second central tube and is connected to described second and set packing element, and described second sets the upper of packing element
End is connected to the water filling connecting cylinder；
Second piston is set on second central tube, and the upper end of the second piston is connected to described second by pressure cap
Set packing element；
Second cylinder sleeve is set in the second piston, and the upper end of second cylinder sleeve is connected to the pressure cap, second cylinder
The lower end of set is connected with the second lower contact, and second lower contact is connected with second central tube；
Wherein, second central tube is equipped with the second pressure transmission hole, second lower contact, the second piston and described second
The second hydraulic cavities are formed between cylinder sleeve and second central tube, second pressure transmission hole is connected with second hydraulic cavities
It is logical.
7. suspension type layered water injection tool as claimed in claim 6, which is characterized in that the second piston structure also has lock
Ring, the lock ring are folded between second central tube and the second piston, the lock ring by the second shear pin with
The pressure cap is connected.
8. suspension type layered water injection tool as claimed in claim 5, which is characterized in that the lower end of first central tube is formed
There are spring claw tube, the spring claw tube to be made of the spaced multiple shrapnels of circumferencial direction along first central tube, the bullet
Pawl pipe is fastened on by unlocking sleeve in first lower contact.
9. suspension type layered water injection tool as claimed in claim 8, which is characterized in that the unlocking sleeve connects under described first
It is connected with third shear pin between head.
10. suspension type layered water injection tool as described in claim 1, which is characterized in that described first sets packing element and described
Second sets packing element is made of multiple packing elements and the spacer ring being folded between adjacent two packing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820274298.9U CN208073450U (en) | 2018-02-26 | 2018-02-26 | Suspension type layered water injection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820274298.9U CN208073450U (en) | 2018-02-26 | 2018-02-26 | Suspension type layered water injection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208073450U true CN208073450U (en) | 2018-11-09 |
Family
ID=64039201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820274298.9U Active CN208073450U (en) | 2018-02-26 | 2018-02-26 | Suspension type layered water injection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208073450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761757A (en) * | 2019-11-29 | 2020-02-07 | 李杨 | Multi-pipe type high-efficiency stratified water injection adjusting device for balancing water injection quantity |
-
2018
- 2018-02-26 CN CN201820274298.9U patent/CN208073450U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761757A (en) * | 2019-11-29 | 2020-02-07 | 李杨 | Multi-pipe type high-efficiency stratified water injection adjusting device for balancing water injection quantity |
| CN110761757B (en) * | 2019-11-29 | 2021-08-06 | 李杨 | Multi-pipe type high-efficiency stratified water injection adjusting device for balancing water injection quantity |
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