CN109025927A - A kind of underground injection device of changeable polymer viscosity - Google Patents
A kind of underground injection device of changeable polymer viscosity Download PDFInfo
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- CN109025927A CN109025927A CN201810813624.3A CN201810813624A CN109025927A CN 109025927 A CN109025927 A CN 109025927A CN 201810813624 A CN201810813624 A CN 201810813624A CN 109025927 A CN109025927 A CN 109025927A
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- 238000002347 injection Methods 0.000 title claims abstract description 80
- 239000007924 injection Substances 0.000 title claims abstract description 80
- 229920000642 polymer Polymers 0.000 title claims abstract description 61
- 230000009467 reduction Effects 0.000 claims abstract description 98
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 32
- 239000003292 glue Substances 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 6
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 210000000664 rectum Anatomy 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 230000006837 decompression Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 210000002445 nipple Anatomy 0.000 description 4
- 230000000379 polymerizing effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of underground injection devices of changeable polymer viscosity, including sequentially connected top connection, outer tube and lower contact from top to bottom, are equipped on the side wall of outer tube and protect viscous liquid outlet and viscosity reduction liquid outlet；Guide-localization component is connected with inside top connection；It is equipped in outer inside pipe casing and integrates the injection allocation regulating mechanism for protecting viscous and viscosity reduction function, injection allocation regulating mechanism is equipped with the viscous circular passage of guarantor that axial section is arc-shaped wave and the viscosity reduction circular passage that axial section is pointed tooth wave；It is equipped on central tube and protects the polymer inlet for gluing channel and viscosity reduction channel and being connected to.The present invention can be at sea in oilfield injection well layered polymer injection allocation process, according to reservoir geology demand in the different polymer with fluence, different viscosities of different layers position injection, solve same-well injection poly layer section difference polymer viscosity demand different problems, improve the injection efficiency and utilization efficiency of polymer, operating cost is reduced, the increasing yield and injection of offshore oilfield is realized.
Description
Technical field
It is especially a kind of with degree of becoming sticky function the present invention relates to a kind of offshore oilfield DP technology layered polymer injection tool
Layered polymer injection, which is surveyed, adjusts seating nipple.
Background technique
Polymer flooding is the important technical that offshore oilfield realizes " volume increase, high yield ".The note that offshore oilfield uses at present
Polymerizing technology just gradually from generally injecting, multitube dispensing etc. techniques to single pipe layered polymer injection commissioning process change, survey adjust, monitoring means
Just gradually realizes interlayer from mechanization to semi-automation, automation transformation and finely inject, reducing interlayer heterogeneity influences,
Injection allocation efficiency is improved, however is directed to the different polymer viscosity demands on stratum, it is mating in single pipe layered polymer injection commissioning process at present
Poly- survey of note adjusts seating nipple only to have effects that polymer guarantor is viscous, is unable to satisfy the change viscosity polymer injection demand on the more stratum of same well,
Influence polymer injection efficiency and service efficiency.
Patent document CN2923998Y is disclosed on July 18th, 2007 a kind of suitable for the design of oil development underground equipment
The Separated layer polymer-injection distributor utility model patent in field, the utility model are provided with internal activity injection allocation core and external fixation component
Two parts, injection allocation core are made of Taper Pipe and elongated tubular, and several annular groovings are equipped with outside elongated tubular, form ring with external fixation component
The continuous expansion-contraction pipe structure of shape is realized decompression and is protected and glues, and changes with fluence by adjusting the length of injection allocation core, it can be achieved that two layers or more
The layered polymer injection of layered polymer injection injection allocation work protects viscous rate >=95%, 20~200m of injection allocation regulated quantity3/d。
Patent document CN CN101705812B, on January 23rd, 2013 disclose a kind of large-discharge single pipe layered polymer injection injection allocation
Method and its injection device patent of invention, which is a kind of large-discharge single pipe layered polymer injection device, meanwhile, it is also disclosed
A kind of large-discharge single pipe layered polymer injection infuses allocation method, which is provided with by the annular in multi-zone flow regulating fuse and seating nipple
The toroidal helical decompression pipeline of spiral relief groove composition, it can be achieved that decompression and protect it is viscous, can be different according to stratum injection allocation amount demand, steel
The injection allocation fuse of latus rectum, realizes the adjusting for matching fluence in silk pulling difference, protects viscous rate >=85%, and maximum matches fluence≤400m3/d.
Patent document CN106837275A, on June 13rd, 2017 disclose a kind of adjustable dress of large-discharge single pipe layered polymer injection
It sets, including surveys tune tool introducing mechanism, injection rate regulating mechanism and polymer and be depressured Bao Nian mechanism；Survey tune tool introducing mechanism tool
There are guiding role and positioning function；Injection rate regulating mechanism have can spiral lifting injection allocation core, injection allocation core have adjust it is poly-
Close the effect of object injection rate size；Polymer is depressured the spindle injection allocation runner that Bao Nian mechanism has decompression, protects viscous characteristic；Injection allocation
The development that there is core enough interior latus rectums to guarantee the operations such as section plane test, while layered polymer injection is surveyed and adjusts seating nipple is interior to have bridge-type
Channel does not influence the polymer injection of remainder layer, guarantor sticky good, note big with injection rate in current layer progress test jobs
Enter the adjustable characteristic of amount.
In conclusion the poly- commissioning process of marine note, tool can satisfy layered polymer injection formulation requirements, but be unsatisfactory for root at present
Change the demand of polymer viscosity according to geologic requirements, and offshore oilfield geologic feature is complicated, the different polymer in injection well middle layer position
Viscosity requirement different problems always exist, and influence the utilization efficiency of the polymer under injection well, therefore to solve the above problems,
Need to propose that one kind degree of becoming sticky infuses poly- gauging means.
Summary of the invention
The present invention is to solve technical problem present in well-known technique and provide and a kind of integrate that guarantor is viscous and viscosity reduction function
Changeable polymer viscosity underground injection device.
The technical scheme adopted by the present invention to solve the technical problems existing in the known art is that a kind of changeable polymerization
The underground injection device of object viscosity, including sequentially connected top connection, outer tube and lower contact from top to bottom, in the outer tube
Side wall be equipped with and protect viscous liquid outlet and viscosity reduction liquid outlet；Guide-localization component is connected with inside the top connection；Described
Be equipped with the injection allocation regulating mechanism for integrating and protecting viscous and viscosity reduction function inside outer tube, the injection allocation regulating mechanism include from up to
Under sequentially connected adjusting ring, band rotating ring and central tube, the adjusting ring is threadedly coupled with the guide-localization component, described
Adjust the longitudinal groove for being equipped on the inside of ring and circumferentially connecting with the poly- measurement and adjustment instrument regulating arm of note；The upper end outer diameter of the central tube compared with
Greatly, the upper end of the central tube is connect by the band rotating ring with the adjusting ring, and is realized by the rotation for adjusting ring
It moves up and down；The upper fixed disk affixed with the outer tube, fixed disk setting are equipped in the upper end of the central tube
In the lower section with rotating ring, it is equipped with the lateral guarantor opposite with viscous liquid outlet is protected on outer tube on fixed disk and glues liquid
Hole, the lower end of the central tube be equipped with the lower fixed disk affixed with the outer tube, on the lower fixed disk be equipped with
The opposite lateral viscosity reduction fluid hole of viscosity reduction liquid outlet on outer tube；Ring is equipped between fixed disk and the lower fixed disk
The intermediate casing on the outside of the central tube is covered, multiple protect is equipped in the inside upper part of the intermediate casing and glues outer adjusting set, under
Portion is equipped with the outer adjusting set of multiple viscosity reductions, is equipped in the outer sheath of the central tube and corresponds with multiple viscous outer adjusting sets of guarantor
Multiple guarantors it is viscous in adjusting set and with adjusting set in adjusting set outside multiple viscosity reductions correspondingly multiple viscosity reductions, described
Protecting and being equipped with axial section on the inside of the outside and the viscous outer adjusting set of the guarantor of viscous interior adjusting set is arc-shaped annular ridge,
It is equipped with the ring that axial section is triangle outside the outside of adjusting set and the viscosity reduction on the inside of adjusting set in the viscosity reduction
Shape fin is formed with axial section between adjusting set and the viscous outer adjusting set of the guarantor in the guarantor is viscous and glues ring for the guarantor of arc-shaped wave
What viscous circular passage was connected to protected with described being formed between adjusting set outside adjusting set in the viscosity reduction and the viscosity reduction in shape channel
Axial section is the viscosity reduction circular passage of pointed tooth wave；It is equipped on the central tube and protects viscous channel and the viscosity reduction channel with described
The polymer inlet of connection, the polymer inlet be located in the viscosity reduction adjusting set and it is described protect in viscous adjusting set it
Between；When moving to setting position on the central tube, the lateral entrance for protecting viscous fluid hole is opened, and lateral protect glues
Fluid apertures is connected to the viscous channel of the guarantor, and the inside of the lower fixed disk is connect with the outer side seal of the outer adjusting set of the viscosity reduction, institute
The entrance for stating lateral viscosity reduction fluid hole is closed；When the central tube is displaced downwardly to setting position, the lateral viscosity reduction fluid hole
Entrance open, the lateral viscosity reduction fluid hole is connected to the viscosity reduction channel, the inside of fixed disk and the center
The upper end of pipe is tightly connected, and the lateral entrance for protecting viscous fluid hole is closed；In the top connection and the guide-localization portion
Passageway bridge I is formed between part and the adjusting ring；It is equipped on fixed disk and glues fluid hole mistake with lateral protect
The passageway bridge II opened；Passageway bridge III is formed between the intermediate casing and the outer tube；In the lower fixed disk
It is equipped with the passageway bridge IV being staggered with the lateral viscosity reduction fluid hole；It is the passageway bridge I, the passageway bridge II, described
Passageway bridge III and the passageway bridge IV constitute the injection passageway bridge being connected to the lower contact.
The adjusting ring and the band rotating ring are affixed, and the band rotating ring and the central tube are rotatablely connected.
The middle part of the central tube is arranged in the polymer inlet.
The advantages and positive effects of the present invention are: protecting viscous and viscosity reduction function by using collection is arranged in outer inside pipe casing
In the injection allocation regulating mechanism of one, at sea in oilfield injection well layered polymer injection allocation process, can be existed according to reservoir geology demand
The different polymer with fluence, different viscosities of different layers position injection, solve same-well injection poly layer section difference polymer viscosity demand
Different problems improve the injection efficiency and utilization efficiency of polymer, reduce operating cost, realize the increasing of offshore oilfield
Produce augmented injection；It can make up for it the deficiency that modulation viscosity function of injecting is surveyed in the existing marine existing layering of note polymerizing technology, improve offshore oil
The range of polymerizing technology application is infused in field, and the popularization for marine note polymerizing technology provides advantageous technical support.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is liquid flow graph of the invention；
Fig. 3 is the A-A cross-sectional view of Fig. 1；
Fig. 4 is the B-B cross-sectional view of Fig. 1；
Fig. 5 is the C-C cross-sectional view of Fig. 1；
Fig. 6 is that guarantor of the invention glues circular passage axial partial sectional view；
Fig. 7 is viscosity reduction circular passage axial partial sectional view of the invention.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows:
FIG. 1 to FIG. 7, a kind of underground injection device of changeable polymer viscosity are please referred to, including is successively connected from top to bottom
Top connection 1, outer tube 7 and the lower contact 13 connect, is equipped with the viscous liquid outlet 7-1 of guarantor on the side wall of the outer tube 7 and viscosity reduction goes out
Liquid mouth 7-2.
It is connected with guide-localization component 2 inside the top connection 1, is equipped in the guide-localization component 2 and imports pen tip
Structure and location structure.
The injection allocation regulating mechanism for integrating and protecting viscous and viscosity reduction function, the injection allocation tune are equipped with inside the outer tube 7
Saving mechanism includes that sequentially connected adjusting ring 3, band rotating ring 4 and central tube 6, the adjusting ring 3 and the guiding are fixed from top to bottom
Position component 2 is threadedly coupled, and is equipped with the longitudinal groove circumferentially connecting with the poly- measurement and adjustment instrument regulating arm of note on the inside of the adjusting ring 3.
The upper end outer diameter of the central tube 6 is larger, and the upper end of the central tube 6 passes through the band rotating ring 4 and the tune
It saves ring 3 to connect, and is moved up and down by the rotation realization for adjusting ring 3；The upper end of the central tube 6 be equipped with it is described
The lower section with rotating ring 4 is arranged in the affixed upper fixed disk 5 of outer tube 7, fixed disk 5, on fixed disk 5
Equipped with the lateral guarantor viscous fluid hole 5-2 opposite with viscous liquid outlet 7-1 is protected, the lower end of the central tube 6 be equipped with it is described outside
The affixed lower fixed disk 11 of casing 7 is equipped with the lateral viscosity reduction opposite with viscosity reduction liquid outlet 7-2 on the lower fixed disk 11 and goes out liquid
Hole 11-2；Ring set is equipped between fixed disk 5 and the lower fixed disk 11 in the intermediate casing in 6 outside of central tube
8, multiple protect is equipped in the inside upper part of the intermediate casing 8 and glues outer adjusting set 10-1, and lower part is equipped with the outer adjusting set of multiple viscosity reductions
10-2, multiple viscous outer adjusting set 10-1 of guarantor and the outer adjusting set 10-2 of multiple viscosity reductions are clamping in fixed disk 5 and described lower solid
Between price fixing 11, it is equipped in the outer sheath of the central tube 6 multiple correspondingly with multiple viscous outer adjusting set 10-1 of guarantor
Protect in viscous adjusting set 9-1 and with adjusting set 9-2 in adjusting set 10-2 outside multiple viscosity reductions correspondingly multiple viscosity reductions, position
Adjusting set 9-1 is limited using the step on central tube 6 in the guarantor of the top is viscous, the adjusting set in the viscosity reduction of bottom
9-2 uses baffle ring 12 of the fixing on central tube 6 to limit, viscous outer in the outside for protecting viscous interior adjusting set 9-1 and the guarantor
It is arc-shaped annular ridge, the outside of adjusting set 9-2 in the viscosity reduction that axial section is equipped on the inside of adjusting set 10-1
And it is equipped with the annular ridge that axial section is triangle on the inside of the outer adjusting set 10-2 of the viscosity reduction, it is adjusted in described protect in viscous
It is formed with the guarantor that axial section is arc-shaped wave between section set 9-1 and the viscous outer adjusting set 10-1 of the guarantor and glues circular passage, described
It is disconnected that the axial direction being connected to the viscous circular passage of the guarantor is formed in viscosity reduction between adjusting set 9-2 and the outer adjusting set 10-2 of the viscosity reduction
Face is the viscosity reduction circular passage of pointed tooth wave.
The polymer inlet 6-1 being connected to the viscous channel of guarantor and the viscosity reduction channel is equipped on the central tube 6,
The polymer inlet 6-1 is located at adjusting set 9-2 and described protect in the viscosity reduction and glues between interior adjusting set 9-1.
When moving to setting position on the central tube 6, the lateral entrance for protecting viscous fluid hole 5-2 is opened, described
Lateral guarantor glues fluid hole 5-2 and is connected to the viscous channel of the guarantor, protects and glues path opening, inside and the drop of the lower fixed disk 11
The outer side seal connection of viscous outer adjusting set 10-2, the entrance of the lateral viscosity reduction fluid hole 11-2 are closed, and viscosity reduction path is closed；When
When the central tube 6 is displaced downwardly to setting position, the entrance of the lateral viscosity reduction fluid hole 11-2 is opened, and the lateral viscosity reduction goes out
Fluid apertures 11-2 is connected to the viscosity reduction channel, and viscosity reduction path is opened, and the inside of fixed disk 6 is upper with the central tube 6
End part seal connection, the lateral entrance for protecting viscous fluid hole 5-2 close, protect viscous path and close.
Passageway bridge I is formed between the top connection 1 and the guide-localization component 2 and the adjusting ring 3；Institute
Fixed disk 5 is stated to be equipped with and lateral II 5-1 of passageway bridge for protecting viscous fluid hole 5-2 and being staggered；The intermediate casing 8 with
Passageway bridge III is formed between the outer tube 7；It is equipped with and the lateral viscosity reduction fluid hole 11- on the lower fixed disk 11
2 IV 11-1 of passageway bridge being staggered；The passageway bridge I, II 5-1 of the passageway bridge, the passageway bridge III and the bridge
IV 11-1 of formula channel constitutes the injection passageway bridge being connected to the lower contact 13.
When Contraction in Site, which is injected by well head, is injected through device with poly- tubing string tripping in purpose of horizon, fluid is infused
Main channel and injection passageway bridge are injected separately into current formation and other stratum, it is specific survey reconcile choose protect glue, viscosity reduction function when,
Tripping in cable and mating adjusting tool is needed to adjust the size for infusing poly- channel and select fluid path diameter, injection passageway bridge can ensure that it
He normally injects on stratum, realizes that multi-section multi-layer becomes the injection and allotment of viscosity polymer.
As shown in Figure 1, tape cable infuses poly- measurement and adjustment instrument and the Injecting polymer unit in guide-localization portion when allotment target zone matches fluence
Part 2 docks, and the regulating arm for infusing poly- measurement and adjustment instrument is inserted into the longitudinal groove adjusted on the inside of ring, and the two forms circumferential connection, adjusts
Arm rotation drives adjusting ring 3 to rotate and move up and down in guide-localization component 2, adjusts ring 3 and drives central tube 6 along device axial direction
It moves up and down, central tube 6, which drives, protects adjusting set 9-2 lower movement vertically in viscous interior adjusting set 9-1 and viscosity reduction, and then changes it
With the spacing of protecting adjusting set 10-2 outside viscous outer adjusting set 10-1 and viscosity reduction, that is, adjust to protect and glue circular passage and viscosity reduction circular passage
Latus rectum size, and then realize injection rate allotment.
Protecting viscous, viscosity reduction function selection is realized by the opening and closing in the viscous path of control guarantor and viscosity reduction path,
On the basis of Injecting polymer unit is adjustable, by rotating the regulating arm of poly- measurement and adjustment instrument device of note matched with its, control drives 6 edge of central tube
Poly- assembly axis of showwing loving care for moves up and down, and central tube 6 and the contact of upper fixed disk 5 and lower fixed disk 11 for changing the Injecting polymer unit are close
Cover, it is final to realize the opening and closing for protecting viscous path and viscosity reduction path, it realizes and protects viscous, viscosity reduction function selection.
In normal liquid injection process, as shown in Fig. 2, liquid is flowed into through device top connection 1, a part of liquid flows through guiding
Positioning element 2, the central passage for adjusting ring 3 flow directly into central tube 6, and another part liquid is followed by including guide-localization portion
It is II 5-1 of passageway bridge on passageway bridge I, upper fixed disk 5 on part 2 including through-hole 2-1 (as shown in Figure 3), formed between
IV 11-1 of passageway bridge on passageway bridge III and lower fixed disk 11 between casing 8 and the outer tube 7 enters lower contact 13, with
The liquid joint flowed out from central tube 6, flows into next stratum together.The fluid for flowing into central tube 6 is divided into two parts, a part of edge
Central tube 6 continues to flowing down, and into lower contact 13, another part enters the viscous channel of guarantor and viscosity reduction by polymer inlet 6-1
The switch state in viscous path and viscosity reduction path is protected in channel according to the injection device, protects viscous path or viscosity reduction path into corresponding,
The guarantor of realization polymer glues or viscosity reduction.
As shown in fig. 6, the contact surface for protecting viscous channel is smooth arc, liquid enters guarantor by polymer inlet 6-1
It behind viscous channel, is flowed along cambered surface, protects viscous channel while decompression, the shear action of polymer is greatly reduced, therefore to note
The polymer for entering underground has effects that protect viscous.
As shown in fig. 7, the contact surface in viscosity reduction channel is multiple tracks sharp edges tooth, liquid is entered by polymer inlet 6-1
Behind viscosity reduction channel, viscosity reduction channel is flowed axially through, frictional resistance increases, and while realizing fluid decompression, increases the shearing to fluid and makees
With, therefore have effects that viscosity reduction to the polymer under injection well.
During carrying out scene injection allotment operation, the device is carried out protecting viscous or viscosity reduction function selection first,
Then injection rate is carried out according to stratum demand and deploys operation.It protects viscous or viscosity reduction function to choose: be determined not with reference to geological reservoir demand
With formation polymer viscosity requirement, the device is then controlled according to formation polymer viscosity requirement and protects viscous path and viscosity reduction path
On and off.Concrete operation method: it when moving up central tube 6 to extreme position, protects viscous path and opens, viscosity reduction path is closed, the device
Have the function of to protect viscous；When moving down central tube 6 to extreme position, protects viscous path and close, viscosity reduction path is opened, as shown in Fig. 2, the dress
Setting has the function of viscosity reduction.The allotment of injection rate: determining after protecting viscous or viscosity reduction, requires allotment stratum injection rate according to stratum, when needing
It is positive first to adjust central tube 6 to be at the limit upper when protecting viscous, it protects in viscous channel that latus rectum is maximum, reversely adjusts center
Pipe 6 is protected latus rectum in viscous channel and is gradually reduced, and when being adjusted to setting position, protects latus rectum in viscous channel and reaches minimum state, continue
It is reversed to adjust central tube 6, it protects viscous path and begins to shut off, continue adjusting and completely closed until protecting viscous path；Equally, when needing viscosity reduction
When, central tube 6 is reversely adjusted first and is at limit bottom, and latus rectum is maximum in viscosity reduction channel, and forward direction adjusts central tube 6, drop
Latus rectum is gradually reduced in viscous channel, and when being adjusted to setting position, latus rectum reaches minimum state in viscosity reduction channel, continues positive adjust
Central tube 6 is saved, viscosity reduction path is begun to shut off, and continues to adjust until viscosity reduction path completely closes.
In the present embodiment, the adjusting ring 3 and the band rotating ring 4 are affixed, the band rotating ring 4 with 6 turns of the central tube
Dynamic connection.The adjusting ring 3 can also be used and the band rotating ring 4 rotation connection, the band rotating ring 4 and the central tube 6 are affixed
Structure.The middle part of the central tube 6 is arranged in the polymer inlet 6-1.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited to upper
The specific embodiment stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, in the case where not departing from present inventive concept and scope of the claimed protection, goes back
Many forms can be made, within these are all belonged to the scope of protection of the present invention.
Claims (3)
1. a kind of underground injection device of changeable polymer viscosity, including sequentially connected top connection, outer tube from top to bottom
And lower contact, which is characterized in that be equipped on the side wall of the outer tube and protect viscous liquid outlet and viscosity reduction liquid outlet；
Guide-localization component is connected with inside the top connection；
The injection allocation regulating mechanism for integrating and protecting viscous and viscosity reduction function, the injection allocation regulating mechanism are equipped with inside the outer tube
Including sequentially connected adjusting ring from top to bottom, band rotating ring and central tube, the adjusting ring and the guide-localization component screw thread
Connection is equipped with the longitudinal groove circumferentially connecting with the poly- measurement and adjustment instrument regulating arm of note on the inside of the adjusting ring；
The upper end outer diameter of the central tube is larger, and the upper end of the central tube is connected by the band rotating ring and the adjusting ring
It connects, and is moved up and down by the rotation realization for adjusting ring；It is equipped in the upper end of the central tube solid with the outer tube
The lower section with rotating ring is arranged in the upper fixed disk connect, fixed disk, is equipped on fixed disk and outer tube
It is upper to protect the opposite viscous fluid hole of lateral guarantor of viscous liquid outlet, the lower end of the central tube equipped with the outer tube it is affixed under
Fixed disk is equipped with the lateral viscosity reduction fluid hole opposite with viscosity reduction liquid outlet on outer tube on the lower fixed disk；On described
Intermediate casing of the ring set on the outside of the central tube is equipped between fixed disk and the lower fixed disk, in the intermediate casing
Upper lateral part is equipped with multiple protect and glues outer adjusting set, and lower part is equipped with the outer adjusting set of multiple viscosity reductions, is equipped in the outer sheath of the central tube
With it is multiple it is described protect viscous outer adjusting sets it is one-to-one it is multiple protect viscous interior adjusting set and with adjusting set one outside multiple viscosity reductions
Adjusting set in one corresponding multiple viscosity reductions, it is equal in the outside for protecting viscous interior adjusting set and the inside for protecting viscous outer adjusting set
It is arc-shaped annular ridge equipped with axial section, the adjusting set outside the outside of adjusting set and the viscosity reduction in the viscosity reduction
Inside is equipped with the annular ridge that axial section is triangle, protects in viscous between adjusting set and the viscous outer adjusting set of the guarantor described
It is formed with the guarantor that axial section is arc-shaped wave and glues circular passage, outside adjusting set in the viscosity reduction and the viscosity reduction between adjusting set
It is formed with and protects the viscosity reduction circular passage that the axial section that viscous circular passage is connected to is pointed tooth wave with described；
It is equipped on the central tube and the polymer inlet protecting viscous channel and the viscosity reduction channel and being connected to, the polymerization
Object inlet is located at adjusting set and described protect in the viscosity reduction and glues between interior adjusting set；
When moving to setting position on the central tube, the lateral entrance for protecting viscous fluid hole is opened, and lateral protect is glued
Fluid hole is connected to the viscous channel of the guarantor, and the inside of the lower fixed disk is connect with the outer side seal of the outer adjusting set of the viscosity reduction,
The entrance of the lateral viscosity reduction fluid hole is closed；When the central tube is displaced downwardly to setting position, the lateral viscosity reduction goes out liquid
The entrance in hole is opened, and the lateral viscosity reduction fluid hole is connected to the viscosity reduction channel, the inside of fixed disk with it is described in
The upper end of heart pipe is tightly connected, and the lateral entrance for protecting viscous fluid hole is closed；
Passageway bridge I is formed between the top connection and the guide-localization component and the adjusting ring；Described solid
Price fixing is equipped with and the lateral passageway bridge II protecting viscous fluid hole and being staggered；Between the intermediate casing and the outer tube
It is formed with passageway bridge III；The passageway bridge IV being staggered with the lateral viscosity reduction fluid hole is equipped on the lower fixed disk；Institute
Passageway bridge I, the passageway bridge II, the passageway bridge III and the composition of the passageway bridge IV is stated to be connected to the lower contact
Injection passageway bridge.
2. the underground injection device of changeable polymer viscosity according to claim 1, which is characterized in that the adjusting ring
Affixed with the band rotating ring, the band rotating ring and the central tube are rotatablely connected.
3. the underground injection device of changeable polymer viscosity according to claim 1, which is characterized in that the polymer
The middle part of the central tube is arranged in inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810813624.3A CN109025927B (en) | 2018-07-23 | 2018-07-23 | Underground injection device capable of changing polymer viscosity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810813624.3A CN109025927B (en) | 2018-07-23 | 2018-07-23 | Underground injection device capable of changing polymer viscosity |
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| CN109025927A true CN109025927A (en) | 2018-12-18 |
| CN109025927B CN109025927B (en) | 2020-09-01 |
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| CN201810813624.3A Active CN109025927B (en) | 2018-07-23 | 2018-07-23 | Underground injection device capable of changing polymer viscosity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130861A (en) * | 2019-06-17 | 2019-08-16 | 浙江金龙自控设备有限公司 | A kind of mixed liquid injection allocation apparatus of low sheraing individual well |
| CN110397427A (en) * | 2019-06-17 | 2019-11-01 | 浙江金龙自控设备有限公司 | A kind of low sheraing pressure regulation Injecting polymer unit |
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