CN106596858B - A kind of replica polymerization object dissolution degree and injection experimental provision - Google Patents
A kind of replica polymerization object dissolution degree and injection experimental provision Download PDFInfo
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- CN106596858B CN106596858B CN201611138383.4A CN201611138383A CN106596858B CN 106596858 B CN106596858 B CN 106596858B CN 201611138383 A CN201611138383 A CN 201611138383A CN 106596858 B CN106596858 B CN 106596858B
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- 238000002347 injection Methods 0.000 title claims abstract description 32
- 239000007924 injection Substances 0.000 title claims abstract description 32
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 13
- 238000004090 dissolution Methods 0.000 title claims abstract description 12
- 239000002775 capsule Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 230000037361 pathway Effects 0.000 claims abstract description 6
- 229920000642 polymer Polymers 0.000 abstract description 47
- 239000000243 solution Substances 0.000 abstract description 23
- 239000011435 rock Substances 0.000 abstract description 5
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000004816 latex Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 241000883990 Flabellum Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229920002959 polymer blend Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The present invention discloses a kind of replica polymerization object dissolution degree and injection experimental provision, cavity, pressure capsule system, PC machine, shear including square-outside and round-inside, the cavity of the square-outside and round-inside has the feed pathway being sequentially communicated, ball-type chamber, liquid outlet channel, it is intracavitary that the shear is mounted on ball-type, strainer cake is equipped in the liquid outlet channel, the pressure capsule system has pressure acquisition connector, the pressure capsule system is mounted on the cavity upper surface of square-outside and round-inside, and the pressure capsule system, PC machine, shear are sequentially connected.Invention emulates in the presence of polymer cross-linked body, it is trapped in cavity by filter screen interception, lead to pressure rise, constricted flow, pressure sensor collects respective data transfer and is sheared to shear, high speed shear significantly destroys solution structure, polymer solution viscosity is reduced, makes it that lesser volume be presented by strainer, rock core will not be blocked into the polymer solution of rock core in this way.
Description
Technical field
The present invention relates to a kind of replica polymerization object dissolution degrees and injection experimental provision, belong to petroleum industry equipment and technology
Field.
Background technique
The more conventional water drive of recovery ratio amplification that SZ 36-1 Field early stage infuses after gathering improves 7%, indicates polymer flooding
Early stage infuse poly- technology at sea oil field application achieve great success.But in entire matching technology process flow, much
That there are injection pressures is higher for injection well, will ensure polymer solution by acid fracturing de-plugging working measure within the scope of certain time
Injection.Scene takes sampling analysis；The result shows that still remaining partial polymer mixture not during polymer formulation
Uniformly, it is polymer cross-linked body that dirt content, which is more than 50%, in stratum, and scene not can effectively solve such there are filter device and ask
Topic.
The quality of polymer solution degree not only affects the pump efficiency and service life of polymer-injecting pump, but also is easy blocking ground
Layer reduces Polymer Solution Viscosity, eventually leads to Flooding Efficiency variation, that is to say, that the quality of polymer solution is critical.
The injection experiment of polymer is to carry out the premise work of Polymer Flooding test: polymer can inject ground first
Layer just can be carried out displacement, so the research of polymer injection is particularly significant.And in experimental study indoors, the note of polymer
Entering property experimental study is to be injected by stirring prepared polymer solution to formation core, studies injection pressure；But it is live total
Can be there is the non-uniform phenomenon of polymer formulation, the injectability of this quasi polymer is molten significantly lower than prepared polymer
Liquid.Therefore, for this problem, how the dissolution degree of replica polymerization object and injection sexual intercourse be very necessary.It is asked by this
The simulation of topic can instruct scene note polymerizing technology --- after mixed with polymers is bad, need to filter out the polymer of much volumes
Glue is conjuncted, just can guarantee that the injection of polymer does not cause formation blockage.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of replica polymerization object dissolution degree and injection experimental provision,
Solve the problems, such as that the scene injection allocation of offshore oilfield polymer flooding is ineffective.
The technical proposal adopted by the invention to solve the above technical problems is that: a kind of replica polymerization object dissolution degree and injection
Property experimental provision, cavity, pressure capsule system, PC machine, shear including square-outside and round-inside, the square-outside and round-inside cavity tool
There are a feed pathway being sequentially communicated, ball-type chamber, liquid outlet channel, it is intracavitary that the shear is mounted on ball-type, the liquid outlet channel
Interior to be equipped with strainer cake, the pressure capsule system has pressure acquisition connector, and the pressure capsule system is mounted on square-outside and round-inside
Cavity upper surface on, the pressure capsule system, PC machine, shear are sequentially connected.
Further, the cavity of the square-outside and round-inside include upper semi-circle cavity, lower half circle cavitr, spiral buckle, it is described
Upper semi-circle cavity, lower half circle cavitr are buckled by spiral and are fixed.
Further, being equipped with square seal ring between the upper semi-circle cavity, lower half circle cavitr.
Further, the shear includes variable-frequency motor, rotation axis, three leaf blades, the rotation axis upper end position
Intracavitary in ball-type, the three leaves blade is mounted on rotation axis upper end, and the variable-frequency motor is connect with rotation axis lower end, the frequency conversion
Motor is connect with PC machine.
Further, the three leaves blade has two groups, and setting up and down hold on the rotating shaft.
The invention has the following advantages: being intercepted invention emulates in the presence of polymer cross-linked body by filter screen
It is trapped in cavity, leads to pressure rise, constricted flow, pressure sensor collects respective data transfer and carries out to shear
Shearing, high speed shear significantly destroy solution structure, reduce polymer solution viscosity, make it that lesser volume be presented and pass through filter
Net will not block rock core into the polymer solution of rock core in this way.The device can simulate mixed with polymers unevenness and bring
Injection problem, characterize dissolution degree and injection correlation, instruct the field application of polymer flooding.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of shear in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of three leaf blades in the embodiment of the present invention；
Fig. 4 is the injection characteristic pattern presented in different polymer injection process.
It is as shown in the figure: 1- feed pathway, 2- ball-type chamber, 3- liquid outlet channel, 4- pressure capsule system, 5-PC machine, 6- strainer
Cake, 7- upper semi-circle cavity, 8- lower half circle cavitr, 9- square seal ring, 10- variable-frequency motor, 11- rotation axis, tri- leaf blade of 12-.
Specific embodiment
A specific embodiment of the invention is further described below with reference to embodiment, is not therefore limited the present invention
System is among the embodiment described range.
As shown in Figures 1 to 3, a kind of replica polymerization object dissolution degree and injection experimental provision, the chamber including square-outside and round-inside
The cavity of body, pressure capsule system 4, PC machine 5, shear, the square-outside and round-inside has the feed pathway 1 being sequentially communicated, ball
Type chamber 2, liquid outlet channel 3, the shear are mounted in ball-type chamber 2, are equipped with strainer cake 6, strainer cake in the liquid outlet channel 3
6 cakes as made of the stainless steel tubule winding compacting of diameter 1mm, more common filtering net film have stronger crushing resistance, the pressure
Power sensor-based system 4 has pressure acquisition connector, and the pressure capsule system 4 is mounted on the cavity upper surface of square-outside and round-inside, institute
Pressure capsule system 4, PC machine 5, shear is stated to be sequentially connected.Pressure capsule system 4 mainly uses precision for 0.1 grade, measures
Journey is the pressure sensor of 1MPa, and pressure sensor collects the top stream pressure of ball-type chamber 2 in entire cavity, and transmits PC machine 5
Control system, then control shear and operated.
The present invention is at work: polymer solution enters inside ball-type chamber 2 from feed pathway 1, polymer solution strainer
Cake 6 is filtered, and filtered solution enters liquid outlet channel 3 and flows out outside cavity, and polymer cross-linked body Inner filter net cake 6, which intercepts, to be detained
In ball-type chamber 2, the raising of 2 internal pressure of ball-type chamber, fluid can be made to be obstructed, the pressure sensor in pressure capsule system 4 is real
When monitor 2 internal pressure of ball-type chamber, and transmit 5 control system of PC machine, then control shear and operated, shear is high
Speed shearing significantly destroys solution structure, reduces polymer solution viscosity, makes it that lesser volume be presented and passes through strainer cake 6,
Finally it is discharged from liquid outlet channel 3.
For the ease of the disassembly of device, preferred embodiment is that the cavity of the square-outside and round-inside includes upper semi-circle cavity
7, lower half circle cavitr 8, spiral buckle, the upper semi-circle cavity 7, lower half circle cavitr 8 are buckled by spiral and are fixed.Upper semi-circle cavity
Pressure acquisition connector is installed in 7 superstructure middle, and lower half circle cavitr 8 is poly- stirring flabellum interface, is to make to enter chamber
The polymer solution of body stirs whole region in flabellum agitation.
In order to improve sealing effect, preferred embodiment is equipped between the upper semi-circle cavity 7, lower half circle cavitr 8
Square seal ring 9.Upper semi-circle cavity 7, lower half circle cavitr 8 push down sealing ring 9, buckle fixed pressure by spiral.
Preferred embodiment is that the shear includes variable-frequency motor 10, rotation axis 11, three leaf blades 12, three leaves
For the shape of blade as shown in figure 3, the rotation axis 11 is mounted in lower half circle cavitr 8,11 upper end of rotation axis is located at ball-type
In chamber 2, lower end is located at outside lower half circle cavitr 8, and the three leaves blade 12 is mounted on 11 upper end of rotation axis, the variable-frequency motor 10 with
The connection of 11 lower end of rotation axis, the variable-frequency motor 10 and 5 circuit connection of PC machine, the three leaves blade 12 have two groups, and up and down
It is arranged in 11 upper end of rotation axis.It is to be sheared (the viscous shear space of three leaf blades 12 comprehensively to the intracorporal polymer of chamber in this way
It is covered in filtrate chamber)；And upper group of blade is directed toward in the following, the following group blade is directed toward above, in rotary course quick in this way, fluid
Fluidized―bed furnace concentrates on middle position, and the pressure transmission that will do not shear causes pressure sensor to be collected to pressure sensor
Rotational pressure, the breakthrough pressure upper limit；It is 1800rpm-2700rpm that variable-frequency motor 10, which provides the range of speeds, and variable-frequency motor 10 connects
PC machine 5 passes to the on/off that PC machine 5 controls variable-frequency motor 10 by pressure sensor, when being more than the design pressure upper limit, i.e.,
It starts turning to pressure and drops to design pressure lower limit.
The experiment of polymer injection
The first step, prepares the polymer solution of 5000mg/L: 1. dissolving normal mother liquor；2. dissolving abnormal mother liquor
(polymer latex is conjuncted).It is diluted to target solution 1750mg/L, solution viscosity range is in 30mPas-70mPas.
Second step, two sets of experimental provisions are set up in connection, a set of to have filtering shearing experiment device A；It is a set of not have filtering
Shearing experiment device B.
Third step carries out three groups of polymer injection experimental studies, and experiment content see the table below 1, pressure limiting in sensor design
Power is 0.75MPa, starts polymeric shear device.
1 injection list of experiments of table
Experimental result is as shown in Fig. 4, and A model-is 1. the polymer 1750mg/L that normal polymerization object mother liquor is diluted to, note
Good injection is shown during entering, injection pressure is steadily in 0.3MPa or so；A model-is 2. due to the polymer of injection
It is conjuncted that there are polymer latexs in dilution, blocks in injection process, and pressure constantly increases, and is more than pressure gage measuring range, institute
To show shown in Fig. 4；B model-is because polymer latex is conjuncted to be filtered with the presence of polymeric shear filter device 2.
Accumulation, (setting pressure is 0.75MPa) starts shearing switch after pressure sensor receives pressure signal, and polymer passes through
Strong shear, conjuncted be crushed of glue flow through strainer, so showing shown in Fig. 4, the subsequent polymer latex of solution is conjuncted to be continued to accumulate
Pressure is caused to rise, further increase injection pressure.
The uneven injection stratum of polymer mixture is very serious to reservoir damage, and mining site has such problems in practice；
Indoors can replica polymerization object blocking rock core experiment, it is poly- how which prevents and treats in the state that solution continuously flows
The non-uniform problem of polymer solution mixture, the device have facilitation to the development of technique of polymer flooding.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of replica polymerization object dissolution degree and injection experimental provision, which is characterized in that cavity, pressure including square-outside and round-inside
The cavity of power sensor-based system (4), PC machine (5), shear, the square-outside and round-inside has the feed pathway (1) being sequentially communicated, ball
Type chamber (2), liquid outlet channel (3), the shear are mounted in ball-type chamber (2), and strainer cake is equipped in the liquid outlet channel (3)
(6), the pressure capsule system (4) is mounted on the cavity upper surface of square-outside and round-inside, the pressure capsule system (4), PC machine
(5), shear is sequentially connected；
The shear includes variable-frequency motor (10), rotation axis (11), three leaf blades (12), rotation axis (11) the upper end position
In ball-type chamber (2), the three leaves blade (12) is mounted on rotation axis (11) upper end, the variable-frequency motor (10) and rotation axis
(11) lower end connects, and the variable-frequency motor (10) connect with PC machine (5), the three leaves blade (12) with two groups, and on divide into
It sets in rotation axis (11) upper end.
2. a kind of replica polymerization object dissolution degree according to claim 1 and injection experimental provision, which is characterized in that institute
State square-outside and round-inside cavity include upper semi-circle cavity (7), lower half circle cavitr (8), spiral buckle, the upper semi-circle cavity (7), under
Semicircle cavity (8) is buckled by spiral and is fixed.
3. a kind of replica polymerization object dissolution degree according to claim 2 and injection experimental provision, which is characterized in that institute
It states and is equipped with square seal ring (9) between upper semi-circle cavity (7), lower half circle cavitr (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138383.4A CN106596858B (en) | 2016-12-12 | 2016-12-12 | A kind of replica polymerization object dissolution degree and injection experimental provision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138383.4A CN106596858B (en) | 2016-12-12 | 2016-12-12 | A kind of replica polymerization object dissolution degree and injection experimental provision |
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| CN106596858A CN106596858A (en) | 2017-04-26 |
| CN106596858B true CN106596858B (en) | 2019-01-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108195717A (en) * | 2017-12-07 | 2018-06-22 | 浙江海洋大学 | A kind of simulation oil reservoir full-scale condition polymer viscosity changeable device and method |
| CN108195718A (en) * | 2017-12-07 | 2018-06-22 | 浙江海洋大学 | A kind of simulation oil reservoir full-scale condition polymer viscosity changeable device |
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| CN200975247Y (en) * | 2006-08-23 | 2007-11-14 | 鞍山凯迪高新技术有限公司 | Removable combined polymer inpouring oil-displacing apparatus |
| CN202031558U (en) * | 2011-03-02 | 2011-11-09 | 中国海洋石油总公司 | Device simulating shear of polymer solution |
| CN102307712A (en) * | 2009-02-05 | 2012-01-04 | 独立行政法人产业技术综合研究所 | High-shear device and method of high shearing |
| CN103951110A (en) * | 2014-04-30 | 2014-07-30 | 赵刚 | Oil field fracturing waste fluid treatment device |
| CN104777272A (en) * | 2015-04-20 | 2015-07-15 | 西南石油大学 | Secondary shearing method for testing performance parameters of oil displacing polymer solution |
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2016
- 2016-12-12 CN CN201611138383.4A patent/CN106596858B/en not_active Expired - Fee Related
Patent Citations (5)
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| CN200975247Y (en) * | 2006-08-23 | 2007-11-14 | 鞍山凯迪高新技术有限公司 | Removable combined polymer inpouring oil-displacing apparatus |
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| CN202031558U (en) * | 2011-03-02 | 2011-11-09 | 中国海洋石油总公司 | Device simulating shear of polymer solution |
| CN103951110A (en) * | 2014-04-30 | 2014-07-30 | 赵刚 | Oil field fracturing waste fluid treatment device |
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