CN106837275A - A kind of large-discharge single pipe layered polymer injection tunable arrangement - Google Patents
A kind of large-discharge single pipe layered polymer injection tunable arrangement Download PDFInfo
- Publication number
- CN106837275A CN106837275A CN201710028171.9A CN201710028171A CN106837275A CN 106837275 A CN106837275 A CN 106837275A CN 201710028171 A CN201710028171 A CN 201710028171A CN 106837275 A CN106837275 A CN 106837275A
- Authority
- CN
- China
- Prior art keywords
- injection
- polymer
- core body
- single pipe
- layered polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims abstract description 129
- 239000007924 injection Substances 0.000 title claims abstract description 129
- 229920000642 polymer Polymers 0.000 title claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000033228 biological regulation Effects 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims description 19
- 239000000178 monomer Substances 0.000 claims description 9
- 239000010985 leather Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 210000002445 nipple Anatomy 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 3
- 210000000664 rectum Anatomy 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 18
- 239000011229 interlayer Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003828 downregulation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003827 upregulation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of large-discharge single pipe layered polymer injection tunable arrangement, including survey tune instrument introducing mechanism, injection rate governor motion and polymer step-down Bao Nian mechanisms；Surveying tune instrument introducing mechanism has guide effect and positioning function；Injection rate governor motion has can spiral lifting injection allocation core body, the effect of regulation polymer step-down Bao Nian mechanisms injection rate size；Polymer step-down Bao Nian mechanisms have step-down, protect the spindle injection allocation runner of viscous characteristic；Injection allocation core body has enough interior latus rectums to ensure the development of the operations such as section plane test, while layered polymer injection is surveyed to adjust has passageway bridge in seating nipple, when current layer carries out test jobs, does not influence the polymer of remainder layer to inject.The present invention has that injection rate is big, protect the adjustable characteristic of sticky good, injection rate, realizes that single pipe layered polymer injection is surveyed and adjusts multi-section multi-layer injection, solves the difficulty that offshore oilfield layered polymer injection faces at present, can effectively improve the utilization rate and oil displacement efficiency of polymer.
Description
Technical field
It is more particularly to a kind of large-discharge single pipe layered the present invention relates to the poly- drive yield-increasing technique downhole tool technical field in oil field
Note poly- tunable arrangement.
Background technology
In recent years, as offshore oilfield gathers the popularization and application for driving yield-increasing technique, the quantity of offshore oilfield injection well gradually increases
Many, the anisotropism yet with stratum seriously causes interlayer contradiction to protrude, it is impossible to reach due polymer flooding effect, causes note poly-
Efficiency is low, and oil displacement effect of polymer is not obvious.
Although generally noting poly- mode can to a certain extent realize Flooding Efficiency, shadow of the offshore oilfield by interlayer contradiction
Ring, Flooding Efficiency is still undesirable.Therefore, poly- efficiency, enhancing Flooding Efficiency are noted in order to improve injection well, reduce interlayer interference,
Need to be finely divided injection well injection.Tradition subdivision note cumulative enough reduces interlayer interference to noting the influence of poly- efficiency, but experiment
Prove that the tradition subdivision poly- injection well downhole flow regulator of note is larger to polymeric shear, polymer viscosity loss is serious, it is impossible to reach polymer flooding effect.
At present, for the phenomenon that oil field stratum anisotropism is serious, polymer viscosity loss late is high, domestic some oil fields
Using single pipe layered polymer injection technique and single string multi note polymerizing technology, Daqing oil field, Shengli Oil Field, Henan Oil Field such as in the oil field of land
Deng, the layered polymer injection to stratum can be realized, interlayer interference influence is reduced, while viscosity loss is ensured within 10%, but point
Interval number is limited, generally layer 2-3, far from meeting offshore oilfield requirement；The current energy of the single pipe layered injection technique of offshore oilfield
The multistage to stratum is realized, but polymer is larger by shearing force under huge discharge, and viscosity loss is serious, lacks TCH test channel,
Can not in time, comprehensively obtain zonal testing data, it is impossible to for oil pool analysis, project setting provide accurate data.Therefore how
Can reduce polymer viscosity loss, underground related data be provided when huge discharge note is poly- in the case of multi-section multi-layer note gathers, realization note,
Survey, adjust the key issue that integration is current urgent need to resolve.
In addition, notification number is CN101705812A, its day for announcing is disclosed in the Chinese invention patent of on May 12nd, 2010
A kind of large-discharge single pipe layered polymer injection injection device, enters to note poly- oil pipe and layered polymer injection injection device group using under in the injection well
Into the poly- tubing string of note, wherein, injection device adjust as needed injection allocation fuse combination reach change multi-zone flow regulating core length,
Effective toroidal helical decompression tube with multi-zone flow regulating seating nipple cooperatively forms certain length, controls to be unable to interval by throttling
With fluence, in the case where viscous rate >=90% is protected, its individual layer maximum pump discharge can reach 400m3/d。
Notification number is CN2923998, and its day for announcing is to disclose one in the Chinese utility model patent on July 18 in 2007
Separated layer polymer-injection distributor is planted, is made up of fixed part and movable part；Its fixed part by upper connection, dispensing seating nipple and under
Portion's joint composition, the upper and lower end of dispensing seating nipple is connected with upper and lower part joint, is provided with dispensing seating nipple some respectively
With orifice；Movable part is injection allocation core, and injection allocation core is made up of Taper Pipe and elongated tubular, and elongated tubular is located at the lower section of Taper Pipe；In injection allocation
Some annular groovings are formed with outside the body of core, the continuous scalable tubular construction of annular is formed；Separated layer polymer-injection distributor is matched somebody with somebody using unique
Note core structure designs, it can be ensured that viscosity retention ratio is more than more than 95%, layered polymer injection is realized, by the length for adjusting injection allocation core
The controllable size with fluence of degree, is 20~200m with fluence3/d。
In sum, prior art can not meet the poly- amount 500m of the maximum note of offshore oilfield individual layer3/ more than d, the dispensing number of plies
The poly- requirement of note is segmented more than 6 sections.In addition, offshore oilfield uses sand control completion mode, for dividing that land oil field is developed
The poly- instrument of layer note may not apply to offshore oilfield.With the development of poly- work of showwing loving care for and the low form of current global oil price, sea
The layered polymer injection instrument of upper oil field development can not meet the requirement of cost efficiency, in order to preferably play the effect of polymer displacement of reservoir oil
Really, at present, it is badly in need of the single pipe layered polymer injection work that exploitation is carried out for combination offshore oilfield injection well reservoir characteristic and completion feature
Skill technology.
The content of the invention
The purpose of the present invention is to overcome deficiency of the prior art, there is provided a kind of adjustable dress of large-discharge single pipe layered polymer injection
Put, the present invention can solve current injection well and gradually increase, and the marine poly- technology of note is by layering hop count, without TCH test channel, Wu Fashi
Now survey the problem for adjusting the limitation of the factors such as integration to meet marine technical demand；Meanwhile, carry out single tube using apparatus of the present invention
Layered polymer injection have it is high protect viscous rate, huge discharge, multi-section multi-layer, can section plane test operation the features such as, solve current offshore oilfield note poly-
The problem for facing, is the exploitation cost efficiency of offshore oilfield so as to improve the utilization rate and oil displacement efficiency of polymer.
The technical solution adopted in the present invention is：A kind of large-discharge single pipe layered polymer injection tunable arrangement, including be connected with each other
Shell, shell long and lower contact, survey tune instrument introducing mechanism and injection rate governor motion, the length are provided with the shell
Polymer step-down Bao Nian mechanisms are provided with shell；
The survey tune instrument introducing mechanism includes top connection and imports nib structure；
The injection rate governor motion includes the regulation axle sleeve mechanism being connected with the importing nib structure, is set in institute
State the upper pressing spring on regulation axle sleeve mechanism outer wall, and be set in stretching on the outside of the regulation axle sleeve mechanism and the upper pressing spring
Contracting leather bag；The first annulus access is formed between the flexible leather bag and the shell；
The polymer step-down Bao Nian mechanisms include injection allocation core body, the injection allocation core body upper end and the regulation axle sleeve mechanism
It is connected and the rotation by the regulation axle sleeve is realized moving up and down；The upper/lower terminal of the injection allocation core body is respectively arranged with
Outside is fixedly connected with the shell long, inner side is in contact with the injection allocation core body outer wall upper chuck and lower chuck, it is described on
The middle tube being set on the outside of the injection allocation core body, the middle tube and the injection allocation are provided between chuck and the lower chuck
The valve overcoat and valve inner sleeve of mutual cooperation are provided between core body, being formed between the valve overcoat and the valve inner sleeve has drop
Pressure, the spindle annular injection allocation runner for protecting viscous characteristic, energy adjusting size；Second is formed between the middle tube and the shell long
Annulus access.
Wherein, the valve overcoat is fixedly installed on the inwall of the middle tube；The valve overcoat is by several Wedge-shapeds
Valve overcoat monomer is combined and forms.
Wherein, the valve inner sleeve is fixedly installed on the outer wall of the injection allocation core body and by following the injection allocation core body
Move up and down and adjust itself and the aperture between the valve overcoat；The valve inner sleeve is arranged successively by several Wedge-shaped valve inner sleeve monomers
Row are combined, and the outer surface of each valve inner sleeve monomer is fusiformis wave structure.
Wherein, several circular holes, the upper/lower terminal of the circular hole are circumferentially offered on the base for importing nib structure
It is connected with the inlet in the top connection and first annulus access respectively.
Wherein, radially offer liquid outlet on the upper chuck and the lower chuck respectively, the injection allocation runner it is upper,
Lower two ends are connected with the liquid outlet on the liquid outlet and the lower chuck of the upper chuck respectively.
Wherein, passageway bridge, the passageway bridge of the upper chuck are respectively arranged with the upper chuck and the lower chuck
Upper/lower terminal be connected with first annulus access and second annulus access respectively, the bridge-type on the lower chuck
The upper/lower terminal of passage is connected with the liquid outlet in second annulus access and the lower contact respectively.
Wherein, several through holes being connected with the injection allocation runner are offered on the middle part outer wall of the injection allocation core body.
Wherein, the importing nib structure is four nib structures.
Wherein, the regulation axle sleeve mechanism uses the releasably engageable rotational structure in two ends.
The beneficial effects of the invention are as follows：
(1) large-discharge single pipe layered polymer injection tunable arrangement of the present invention is with noting in poly- oil pipe lower going-into-well and insertion seal combination shape
Into stratified injection tubular pile, wherein single pipe layered polymer injection tunable arrangement can be adjusted as desired by wireline operation, reach
Injection allocation demand of the layer with fluence a, wireline operation completes all layers of survey of position and adjusts, by surveying the internal injection allocation of key full employment cylinder
Runner come control different intervals with fluence, realize layering allotment.Better than the work of traditional steel wire operation pulling injection allocation fuse
Skill, saves operating cost.
(2) large-discharge single pipe layered polymer injection tunable arrangement of the present invention there is height to protect viscous, huge discharge, multi-section multi-layer subdivision note and gathers
Feature, in the case where viscous rate >=95% is protected, its individual layer maximum injection rate can reach 600m3/d。
(3) large-discharge single pipe layered polymer injection tunable arrangement of the present invention is applied to multi-section multi-layer and notes poly-, with other injection allocation apparatus phases
Than, during to polymer injection allocation, section plane test can be carried out, location survey, hang survey and can meet, tested when to purpose stratum
When, do not interfere with the injection to other interval.Formation parameter accurate detection is capable of achieving, while ensureing the note of other interval polymer
Enter unaffected.
Brief description of the drawings
Fig. 1：Schematic structural view of the invention；
Fig. 2：Injection rate governor motion mplifying structure schematic diagram of the present invention；
Fig. 3：Valve overcoat of the present invention and valve inner sleeve mplifying structure schematic diagram；
Fig. 4：A-A cross-sectional views of the present invention；
Fig. 5：B-B cross-sectional views of the present invention；
Fig. 6：Liquid flows to schematic diagram in the present invention.
Accompanying drawing is marked：1st, top connection；2nd, nib structure is imported；3rd, circular hole；4th, stretch leather bag；5th, upper pressing spring；6th, adjust
Axle sleeve mechanism；7th, upper chuck；8th, valve overcoat；9th, valve inner sleeve；10th, middle tube；11st, injection allocation core body；12nd, shell long；13rd, lower card
Disk；14th, lower contact；15th, shell；16th, the first annulus access；17th, liquid outlet；18th, through hole；19th, injection allocation runner；20th, second
Annulus access；21st, liquid outlet；22nd, passageway bridge.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in accompanying drawing 1 to Fig. 5, a kind of large-discharge single pipe layered polymer injection tunable arrangement, including be connected with each other shell 15,
Survey tune instrument introducing mechanism and injection rate governor motion, the length are provided with shell long 12 and lower contact 14, the shell 15
Polymer step-down Bao Nian mechanisms are provided with shell 12.
The survey tune instrument introducing mechanism includes top connection 1 and imports nib structure 2, and the importing nib structure 2 is four
Nib structure, circumferentially offers several circular holes 3, the upper/lower terminal of the circular hole 3 on the base of the importing nib structure 2
It is connected with the inlet in the top connection 1 and following first annulus access 16 respectively.
The injection rate governor motion includes regulation axle sleeve mechanism 6, upper pressing spring 5 and flexible leather bag 4, the flexible leather bag
The first annulus access 16 is formed between 4 and the shell 15.The two ends of the regulation axle sleeve mechanism 6 respectively with the importing nib
Structure 2 is connected with following injection allocation core bodys 11, and following injection allocation core bodys 11 are moved up and down by rotating regulation axle sleeve mechanism 6, its
The one end being connected with the importing nib structure 2 uses the releasably engageable rotational structure in two ends；The upper pressing spring 5 is set in described
On the outer wall of regulation axle sleeve mechanism 6；The flexible leather bag 4 is set in the outer of the regulation axle sleeve mechanism 6 and the upper pressing spring 5
Side, protects the upper pressing spring 5 and the regulation axle sleeve mechanism 6 to avoid influence of the polymer to governor motion.
The polymer step-down Bao Nian mechanisms include injection allocation core body 11, upper chuck 7, lower chuck 13, middle tube 10, phase interworking
The valve overcoat 8 and valve inner sleeve 9 of conjunction；Being formed between the valve overcoat 8 and the valve inner sleeve 9 has step-down, protects viscous characteristic, can adjust
The spindle annular injection allocation runner 19 of size, the injection allocation runner 19 extends polymer flow channels, is dropped while step-down
Low destruction of the shearing force to polymer viscosity, by the different intervals of control that throttle with fluence realizing layering allotment；It is described
The second annulus access 20 is formed between middle tube 10 and the shell long 12, layer during operation is reduced by the second annulus access 20
Between disturb, ensure the injection of polymer huge discharge.The upper end of injection allocation core body 11 is connected and passes through with the regulation axle sleeve mechanism 6
The rotation of the regulation axle sleeve is realized moving up and down；Several are offered on the middle part outer wall of the injection allocation core body 11 to match somebody with somebody with described
The through hole 18 that beam road 19 is connected.The upper chuck 7 and the lower chuck 13 be separately positioned on the injection allocation core body 11 it is upper,
The outside of lower two ends, the upper chuck 7 and the lower chuck 13 is fixedly connected with the shell long 12, inner side and the injection allocation
The outer wall of core body 11 is in contact so that during the injection allocation core body 11 is moved up and down, and the upper chuck 7 and the lower chuck 13 are solid
It is fixed motionless；Liquid outlet 17 and liquid outlet 21 are radially offered on the upper chuck 7 and the lower chuck 13 respectively, it is described to match somebody with somebody
The upper/lower terminal in beam road 19 respectively with the liquid outlet 17 and the lower chuck 13 of the upper chuck 7 on liquid outlet 21
It is connected, two liquid outlets 17,21 can pressure of the balancing liquid in the interior flowing of injection allocation runner 19 suffered by injection allocation core body 11, side
Just the regulation of measurement and adjustment instrument device；Passageway bridge 22, the upper chuck 7 are respectively arranged with the upper chuck 7 and the lower chuck 13
The upper/lower terminal of passageway bridge 22 be connected to be formed with first annulus access 16 and second annulus access 20 respectively
Bypass flow channel, the upper/lower terminal of the passageway bridge 22 on the lower chuck 13 respectively with second annulus access 20 and described
Liquid outlet in lower contact 14 is connected.The middle tube 10 is set in the outside of the injection allocation core body 11, its upper/lower terminal difference
It is fixedly connected with the upper chuck 7 and the lower chuck 13.The valve overcoat 8 is fixedly installed on the inwall of the middle tube 10
On, the valve overcoat 8 is combined by several Wedge-shaped valve overcoat monomers and formed；The valve inner sleeve 9 is fixedly installed on
On the outer wall of the injection allocation core body 11 and by follow the injection allocation core body 11 move up and down regulation itself and the valve overcoat 8 it
Between aperture to adjust the size of the injection allocation runner 19, the valve inner sleeve 9 is arranged successively by several Wedge-shaped valve inner sleeve monomers
Row are combined, and the outer surface of each valve inner sleeve monomer is fusiformis wave structure；The valve overcoat 8 and the valve inner sleeve
9 structure forms spindle annular injection allocation runner 19 between the two.
As shown in fig. 6, in the normal process of injection allocation of polymer, polymer is flowed into by top connection 1, importing nib structure 2 is flowed through
When, circular hole 3 that a part of polymer is opened up on the circumferencial direction along nib structure base enters by the first annulus access 16 and the
The bypass flow channel that two annulus access 20 is formed, flows into next layer, a part of adjusted axle sleeve mechanism 6 of polymer flow, into injection allocation
Core body 11.The polymer part for flowing into injection allocation core body 11 flows into shape between valve inner sleeve 9 and valve overcoat 8 by through hole 18 thereon
Into spindle annular injection allocation runner 19, a part of polymer flow flows to next layer through lower contact 14, into injection allocation runner 19
Polymer can meet the pressure requirements on stratum by the step-down of annular space spiral spindle passage, while spiral fusiformis wave structure can drop
The low shear action to polymer viscosity, it is ensured that the viscosity of polymer meets stratum demand, finally by liquid outlet 17,21,
Injection stratum.
When needing to change stratum with fluence, can down enter the measurement and adjustment instrument device supporting with the invention device, measurement and adjustment instrument device is by leading
Enter nib structure 2 to position, docked with regulation axle sleeve mechanism 6, now, polymer can enter other stratum by bypass flow channel, other
Stratum can normally be injected.Measurement and adjustment instrument device drives the rotary motion of regulation axle sleeve mechanism 6, at the same adjust axle sleeve mechanism 6 along with importing
The screw thread of the threaded connection place of nib structure 2 is moved up and down, so as to drive injection allocation core body 11 to move up and down, changes injection allocation runner 19
Size, and then the regulation to polymer injection allocation amount is realized, meet requirement of the layered polymer injection to huge discharge injection of polymer solution.
The present invention solves offshore oilfield, and generally the poly- caused polymer solution of note primarily enters high permeability zone, causes hypotonic
Permeable layers involve low degree, the problem of oil displacement efficiency difference.Compared with existing layered polymer injection device, operating cost of the present invention is low, fits
Used under the current low oil price international situation of conjunction.The characteristics of apparatus of the present invention have viscous guarantor high, huge discharge, multi-section multi-layer, can solve
Certainly the poly- difficulty for facing at present of offshore oilfield note, improves the utilization rate and oil displacement efficiency of polymer.
Claims (9)
1. a kind of large-discharge single pipe layered polymer injection tunable arrangement, including shell, shell long and the lower contact being connected with each other, its feature
It is that survey tune instrument introducing mechanism and injection rate governor motion are provided with the shell, polymerization is provided with the shell long
Thing step-down Bao Nian mechanisms；
The survey tune instrument introducing mechanism includes top connection and imports nib structure；
The injection rate governor motion includes the regulation axle sleeve mechanism being connected with the importing nib structure, is set in the tune
Upper pressing spring on nodal axisn set mechanism outer wall, and the flexible skin being set on the outside of the regulation axle sleeve mechanism and the upper pressing spring
Capsule；The first annulus access is formed between the flexible leather bag and the shell；
The polymer step-down Bao Nian mechanisms include injection allocation core body, and the injection allocation core body upper end is connected with the regulation axle sleeve mechanism
Connect and the rotation by the regulation axle sleeve is realized moving up and down；The upper/lower terminal of the injection allocation core body is respectively arranged with outside
Be fixedly connected with the shell long, the upper chuck and lower chuck that inner side is in contact with the injection allocation core body outer wall, the upper chuck
The middle tube being set on the outside of the injection allocation core body, the middle tube and the injection allocation core body are provided with and the lower chuck between
Between be provided with the valve overcoat and valve inner sleeve of mutual cooperation, being formed between the valve overcoat and the valve inner sleeve has step-down, protects
The spindle annular injection allocation runner of viscous characteristic, energy adjusting size；The second annular space is formed between the middle tube and the shell long
Passage.
2. large-discharge single pipe layered polymer injection tunable arrangement according to claim 1, it is characterised in that the valve overcoat is fixed
It is arranged on the inwall of the middle tube；The valve overcoat is combined by several Wedge-shaped valve overcoat monomers and formed.
3. large-discharge single pipe layered polymer injection tunable arrangement according to claim 1, it is characterised in that the valve inner sleeve is fixed
It is arranged on the outer wall of the injection allocation core body and adjusts itself and the valve overcoat by following moving up and down for the injection allocation core body
Between aperture；The valve inner sleeve is combined by several Wedge-shaped valve inner sleeve monomers and formed, in each described valve
The outer surface for covering monomer is fusiformis wave structure.
4. large-discharge single pipe layered polymer injection tunable arrangement according to claim 1, it is characterised in that the importing nib knot
Circumferentially offer several circular holes on the base of structure, the upper/lower terminal of the circular hole respectively with the top connection in inlet
It is connected with first annulus access.
5. large-discharge single pipe layered polymer injection tunable arrangement according to claim 1, it is characterised in that the upper chuck and institute
State and radially offer liquid outlet on lower chuck respectively, the upper/lower terminal of the injection allocation runner respectively with the liquid of the upper chuck
Body outlet is connected with the liquid outlet on the lower chuck.
6. large-discharge single pipe layered polymer injection tunable arrangement according to claim 1, it is characterised in that the upper chuck and institute
State and passageway bridge be respectively arranged with lower chuck, the upper/lower terminal of the passageway bridge of the upper chuck respectively with first ring
Empty passage is connected with second annulus access, and the upper/lower terminal of the passageway bridge on the lower chuck is respectively with described
Two annulus access are connected with the liquid outlet in the lower contact.
7. large-discharge single pipe layered polymer injection tunable arrangement according to claim 1, it is characterised in that the injection allocation core body
Several through holes being connected with the injection allocation runner are offered on the outer wall of middle part.
8. large-discharge single pipe layered polymer injection tunable arrangement according to claim 1, it is characterised in that the importing nib knot
Structure is four nib structures.
9. large-discharge single pipe layered polymer injection tunable arrangement according to claim 1, it is characterised in that the regulation axle sleeve machine
One end that structure is connected with the importing nib structure uses the releasably engageable rotational structure in two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710028171.9A CN106837275B (en) | 2017-01-13 | 2017-01-13 | A kind of large-discharge single pipe layered polymer injection tunable arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710028171.9A CN106837275B (en) | 2017-01-13 | 2017-01-13 | A kind of large-discharge single pipe layered polymer injection tunable arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106837275A true CN106837275A (en) | 2017-06-13 |
| CN106837275B CN106837275B (en) | 2019-06-18 |
Family
ID=59124762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710028171.9A Active CN106837275B (en) | 2017-01-13 | 2017-01-13 | A kind of large-discharge single pipe layered polymer injection tunable arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106837275B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025927A (en) * | 2018-07-23 | 2018-12-18 | 中国海洋石油集团有限公司 | A kind of underground injection device of changeable polymer viscosity |
| CN112682011A (en) * | 2020-12-28 | 2021-04-20 | 中国海洋石油集团有限公司 | Chemical flooding multi-medium central channel type injection allocation device |
| CN116575892A (en) * | 2023-07-12 | 2023-08-11 | 东营市鑫吉石油技术有限公司 | Corrugated friction type cabled layered polymer injection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2176726C1 (en) * | 2000-04-12 | 2001-12-10 | Общество с ограниченной ответственностью "ЮганскНИПИнефть" | Face generator of acoustic vibration and process of restoration of collector properties of face zone with its employment |
| CN101705812A (en) * | 2009-11-17 | 2010-05-12 | 中国海洋石油总公司 | Large-discharge single pipe layered polymer injection and injection allocation method and device |
| CN105257268A (en) * | 2015-10-10 | 2016-01-20 | 中国石油天然气股份有限公司 | Bridge type concentric polymer distributor for separate-layer polymer injection well |
| CN105401928A (en) * | 2015-12-24 | 2016-03-16 | 牡丹江博实石油机械科技有限公司 | Multifunctional concentric injection allocation |
| CN205243482U (en) * | 2015-12-24 | 2016-05-18 | 牡丹江博实石油机械科技有限公司 | Multi -functional concentric injection allocation ware |
-
2017
- 2017-01-13 CN CN201710028171.9A patent/CN106837275B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2176726C1 (en) * | 2000-04-12 | 2001-12-10 | Общество с ограниченной ответственностью "ЮганскНИПИнефть" | Face generator of acoustic vibration and process of restoration of collector properties of face zone with its employment |
| CN101705812A (en) * | 2009-11-17 | 2010-05-12 | 中国海洋石油总公司 | Large-discharge single pipe layered polymer injection and injection allocation method and device |
| CN105257268A (en) * | 2015-10-10 | 2016-01-20 | 中国石油天然气股份有限公司 | Bridge type concentric polymer distributor for separate-layer polymer injection well |
| CN105401928A (en) * | 2015-12-24 | 2016-03-16 | 牡丹江博实石油机械科技有限公司 | Multifunctional concentric injection allocation |
| CN205243482U (en) * | 2015-12-24 | 2016-05-18 | 牡丹江博实石油机械科技有限公司 | Multi -functional concentric injection allocation ware |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025927A (en) * | 2018-07-23 | 2018-12-18 | 中国海洋石油集团有限公司 | A kind of underground injection device of changeable polymer viscosity |
| CN109025927B (en) * | 2018-07-23 | 2020-09-01 | 中国海洋石油集团有限公司 | Underground injection device capable of changing polymer viscosity |
| CN112682011A (en) * | 2020-12-28 | 2021-04-20 | 中国海洋石油集团有限公司 | Chemical flooding multi-medium central channel type injection allocation device |
| CN116575892A (en) * | 2023-07-12 | 2023-08-11 | 东营市鑫吉石油技术有限公司 | Corrugated friction type cabled layered polymer injection device |
| CN116575892B (en) * | 2023-07-12 | 2023-10-31 | 东营市鑫吉石油技术有限公司 | Corrugated friction type cabled layered polymer injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106837275B (en) | 2019-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101705812B (en) | Large-discharge single pipe layered polymer injection and injection allocation method and device | |
| CN109339748B (en) | Water accumulation separate injection device suitable for offshore oil field | |
| CN106837275A (en) | A kind of large-discharge single pipe layered polymer injection tunable arrangement | |
| CN103362486A (en) | Digital underground layering water injection testing and adjusting process pipe column and operation method thereof | |
| CN203285408U (en) | High pressure layered water injection tubular column | |
| CN204476377U (en) | A kind of differential intelligent watering device | |
| CN108138557B (en) | Water control pipe column and automatic inflow control current limiter and inflow control device thereof | |
| CN205297503U (en) | Split injection well intelligence measure and regulate and monitoring process units | |
| CN104314530B (en) | Inflow control device | |
| CN103890312A (en) | Autonomous fluid control device having a reciprocating valve for downhole fluid selection | |
| CN109025927B (en) | Underground injection device capable of changing polymer viscosity | |
| CN107246256A (en) | A kind of special-shaped coiled tubing beam ground distributor injection system | |
| CN2487868Y (en) | Integrated device for distributing metering and regulating in thickened oil filling steam process | |
| CN207161062U (en) | A kind of directional well Adaptive Second segmentation control water completion tubular column | |
| CN103883295A (en) | Parallel type inflow control box and parallel type inflow control device | |
| CN201679489U (en) | Double-pipe separated injection safety production pipe column | |
| CN202707018U (en) | Bridge type eccentric overflowing water distributor and blanking plug thereof | |
| CN106097122B (en) | Method for determining reasonable salvage time of underground choke | |
| CN104165043B (en) | Two-tube constant current divides water controller | |
| CN106567697B (en) | Blending device | |
| CN111852421B (en) | Large differential pressure separated injection multi-stage regulation and control water distributor | |
| CN1289787C (en) | Apparatus for controlling polymer molecular weight and flow of multiple-layer separate filling into with polymer displacement | |
| CN202850960U (en) | Axial screw-type sealing injection allocation device | |
| CN203248137U (en) | Double-pipe constant-flow water distribution control device | |
| CN207111061U (en) | A kind of separate layer acid treatment is surveyed with dispensing and adjusts integrated pipe column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: CNOOC Energy Development Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC Energy Development Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |