CN110410049A - A kind of method and device thereof for evaluating polymer solution adsorptivity in porous media - Google Patents
A kind of method and device thereof for evaluating polymer solution adsorptivity in porous media Download PDFInfo
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- CN110410049A CN110410049A CN201910673035.4A CN201910673035A CN110410049A CN 110410049 A CN110410049 A CN 110410049A CN 201910673035 A CN201910673035 A CN 201910673035A CN 110410049 A CN110410049 A CN 110410049A
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- porous media
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- 229920000642 polymer Polymers 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000006073 displacement reaction Methods 0.000 claims abstract description 45
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000011156 evaluation Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 36
- 239000011435 rock Substances 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 235000008434 ginseng Nutrition 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 238000012216 screening Methods 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 25
- 239000004576 sand Substances 0.000 description 21
- 239000003921 oil Substances 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 239000006004 Quartz sand Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 102100037681 Protein FEV Human genes 0.000 description 1
- 101710198166 Protein FEV Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a kind of method and device thereof for evaluating polymer solution adsorptivity in porous media, wherein method in the filterable agent device that can preset displacement pressure the following steps are included: be packed into the polymer solution of known performance parameter, by filterable agent device into the porous media model that several are sequentially connected in series successively displacement polymer solution, then the performance parameter of the polymer solution of each porous media model is flowed through with detecting instrument detection, and detects variation of the performance parameter of polymer solution before and after displacement process simultaneously.The present invention is suitable for screening a greater number sample, can be simple and direct quick, and effective evaluation porous media flows influence solution property, are conducive to compare more properties of sample superiority and inferiority, a variety of methods detections may be implemented, structure is simple, easy to operate.
Description
Technical field
The present invention relates to the indoor physical simulation oil displacement experiment technical fields in petroleum industry, and in particular to a kind of evaluation is poly-
The method and device thereof of polymer solution adsorptivity in porous media.
Background technique
Chemical displacement of reservoir oil technique is used widely in the case of each elephant steps into development late stage at home, and is achieved good
Decreasing water cut and increasing oil effect.Analysis measurement is different to drive agent to the effect of crude oil extraction, carries out development plan screening, is carried out to mining site
The necessary technical support of chemical flooding agent oil recovery, and evaluating porous media shearing suction-operated is that screening is driven to the influence for driving agent performance
Finish process key factor in need of consideration.
Laboratory evaluation drives the variation of solution property parameter after agent shearing or absorption at present, relies primarily on indoor oil displacement experiment
Simulation or instrument rotation detection.Its Instrumental rotation evaluation method by the shear rotational shear under higher rotation speed, and
Centrifuge is driven through porous media and evaluates shearing respectively and adsorb the influence to solution property.However existing indoor displacement of reservoir oil reality
It is longer to test the period, and generally in 3-5 days and higher cost, and instrument rotation is difficult to the practical variation for driving agent performance of actual response,
These factors are all unfavorable for evaluating greater number of laboratory sample.
In conclusion needing one kind that can evaluate multiple groups polymer solution simultaneously by solution before and after Porous Medium Adsorption at present
The experimental method and equipment of the situation of change of performance parameter.
Summary of the invention
The technical problem to be solved by the present invention is to the sides of existing evaluation polymer solution absorption property in porous media
Method and equipment cannot screen a greater number sample, be not suitable for the problem of doing the comparison of multiple groups experimental data.
In order to solve the above-mentioned technical problem, exist the technical scheme adopted by the invention is that providing a kind of evaluation polymer solution
The method of adsorptivity in porous media, comprising the following steps: known to being packed into the filterable agent device that can preset displacement pressure
The polymer solution of performance parameter, set filterable agent device displacement pressure, if then by the filterable agent device to
Successively polymer solution described in displacement in the dry porous media model being sequentially connected in series, and it is each to flow through the polymer solution
Then the porous media model flows through the polymer solution of each porous media model with detecting instrument detection
Performance parameter, and variation of the performance parameter of the polymer solution before and after displacement process is detected simultaneously.
It is used the present invention also provides a kind of above-mentioned evaluation polymer solution method of adsorptivity in porous media
Device, including sequentially connected filterable agent device and porous media model, the porous media model be several and it is mutual
It is sequentially connected in series, there is pore structure not of uniform size in the porous media model, pre-installed in the filterable agent device
Know that the polymer solution of performance parameter, the filterable agent device provide the polymer described in displacement into the porous media model
The displacement pressure of solution further includes detecting instrument, and the detecting instrument detects respectively flows through each porous media model
The performance parameter of the polymer solution, and change of the performance parameter of the polymer solution before and after displacement process is detected simultaneously
Change.
In the above scheme, between the filterable agent device and multiple porous media models and two neighboring described
It is respectively equipped with several multi-pass distributing valves on connecting line between porous media model, divides on each porous media model
Not She You one outlet end, each outlet end also is provided with the multi-pass distributing valve.
In the above scheme, the filterable agent device includes intermediate receptacle and the pressure system connecting with the intermediate receptacle
System, it is known that the polymer solution of performance parameter is pre-installed in the intermediate receptacle, and the pressure system is provided to described more
The displacement pressure of polymer solution described in displacement in the dielectric model of hole.
In the above scheme, pressure test port is respectively arranged on each porous media model.
In the above scheme, the pressure of pressure change in monitoring displacement process is connected separately on each multi-pass distributing valve
Power table.
In the above scheme, the porous media model is that sand-filling tube model pipe or the sandwiched device of rock core, the rock core are sandwiched
Different type rock core is added in device.
In the above scheme, the porous media model be sand-filling tube model when, the sand-filling tube model it is parallel to each other and
It is placed perpendicular to ground.
In the above scheme, the displacement pressure value of the filterable agent device is 0.3MPa, the body of the polymer solution
Product is 150ml.
In the above scheme, connected between the filterable agent device and each porous media model by displacement of reservoir oil pipeline
It connects.
The present invention is suitable for screening a greater number sample, can be simple and direct quick, lower-cost effective evaluation porous media flow
It is dynamic that solution property is influenced, be conducive to compare more properties of sample superiority and inferiority；Using displacement of reservoir oil pipeline, multi-pass distributing valve connection filtering because
A variety of method detections may be implemented in the components such as sub-device and sand-filling tube model, core holding unit, and structure is simple, easy to operate, and
It can be improved on original filterable agent device.
Detailed description of the invention
Fig. 1 is appearance schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of the preferred embodiment of the present invention.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings of the specification.
The invention discloses a kind of method and device thereof for evaluating polymer solution adsorptivity in porous media, this fields
Technical staff can use for reference present disclosure, be suitably modified realization of process parameters.It is important to note that all similar replacements
Apparent to those skilled in the art with changing, they are considered as being included in the present invention, and related personnel
Obviously content described herein can be modified or be suitably changed on the basis of not departing from the content of present invention, spirit and scope with
Combination, carrys out implementation and application the technology of the present invention.
In invention, unless otherwise stated, Science and Technology noun used herein has those skilled in the art
The normally understood meaning of member institute.
As shown in Figure 1, a kind of method for evaluating polymer solution adsorptivity in porous media provided by the invention, including
Following steps: 6 (the i.e. displacement of reservoir oil of polymer solution of known performance parameter is packed into the filterable agent device that can preset displacement pressure
Agent), the present invention in polymer solution 6 can be fitted into the intermediate receptacle 1 of filterable agent device, set filterable agent device pressure
Then the displacement pressure of system 13 passes through the successively displacement into the porous media model that several are sequentially connected in series of filterable agent device
Polymer solution 6, the present invention are the first porous media model 3, the second porous media respectively by taking three porous media models as an example
Model 4 and third porous media model 5, and polymer solution 6 is made to flow through each porous media model, then use detecting instrument 14
Detection flows through the performance parameter of the polymer solution 6 of each porous media model, and detects the performance ginseng of polymer solution simultaneously
Variation comparison of the number before and after displacement process is evaluated.
According to requirement of experiment, the connecting line between the two neighboring porous media model of closing can be passed through in displacement process
On each multi-pass distributing valve, and each multi-pass distributing valve for opening the outlet at bottom end of each porous media model is poly- to take out
Polymer solution compares, such as opens the second multi-pass distributing valve 8 taking-up displacement of reservoir oil agent solution as closed third multi-pass distributing valve 9,
Beaker can be chosen as the container for accepting solution.
As shown in Figure 1, the present invention also provides a kind of device that the above method uses, including sequentially connected filterable agent
Device and porous media model, filterable agent device include intermediate receptacle 1 and the pressure system connecting with intermediate receptacle 1 13,
Know that the polymer solution 6 of performance parameter is pre-installed in intermediate receptacle 1, it is poly- that pressure system 13 provides the displacement into porous media model
The displacement pressure of polymer solution 6, porous media model is several and is mutually sequentially connected in series, and has size in porous media model
Different pore structure is sequentially connected between filterable agent device and each porous media model by displacement of reservoir oil pipeline 2.
Furthermore the invention also includes detecting instrument 14, detecting instrument 14 detects respectively flows through the poly- of each porous media model
The performance parameter of polymer solution, and variation of the performance parameter of polymer solution before and after displacement process, detector are detected simultaneously
Device preferably can be used U.S. CNG Company production novel device for evaluation of filtration performance of flooding system, model PET-1/2, with
Cooperate use of the invention.
The wherein drive between intermediate receptacle 1 and multiple porous media models and between two neighboring porous media model
Several multi-pass distributing valves are respectively equipped on oil pipeline 2, as shown in figure 1 shown in sequence, by taking three porous media models are connected as an example,
It is followed successively by the first multi-pass distributing valve 7, the second multi-pass distributing valve 8, third multi-pass distributing valve 9, the 4th multi-pass distributing valve 10, more than the 5th
Way distributer valve 11, the 6th multi-pass distributing valve 12 are respectively equipped with one outlet end 15, each outlet end on each porous media model
It also is provided with a multi-pass distributing valve on 15, is successively the second multi-pass distributing valve 8, the 4th multi-pass distributing valve 10, the 6th multi-pass in Fig. 1
Distributing valve 12.
Preferably, it is respectively arranged with pressure test port on each porous media model, connects respectively on each multi-pass distributing valve
It is connected to the pressure gauge of pressure change in monitoring displacement process, the displacement pressure value of pressure system 13 is 0.3MPa, polymer solution 6
Volume be 150ml.
As shown in Fig. 2, porous media model can be used as sand-filling tube model pipe or rock core as a kind of specific embodiment
Sandwiched device, the sandwiched device 4 of rock core is interior to add different type rock core, when porous media model is sand-filling tube model, sand-filling tube model
Extend parallel to one another and perpendicularly relative to ground placement.The present embodiment by taking an individual fill out sand tube as an example, in fill out sand tube equipped with quartz sand or
The sands such as oil-sand, make polymer solution flow through fill out sand tube under a certain pressure, to evaluate polymer solution absorption, mobile performance,
Sand-filling tube model filling gravel type, gravel mesh number, back-up sand quality can be selected according to specific requirement.
It is compared below by way of experimental data, enumerates practical application comparative test effect of the invention:
Experimental data 1
Table 1 surveys the artificial core for the 5cm long that permeability is 1000mD with water, at 0.3MPa, makes to divide in common respectively poly-
It closes object and association polymer flows through device, the variation that measurement passes through the viscosity before and after rock core
Table 1
From the results of view, changed less by solution viscosity before and after rock core, the reduction of viscosity may be due to shear action
Caused by.
2 quartz sand back-up sand of experimental data absorption research
Different meshes quartz sand is respectively adopted in table 2, table 3, and each back-up sand compaction quality is 70g, at 0.3MPa, respectively will
12000000,25,000,000 polymer solution 150ml measure the viscosity before and after Polymer adsorption by sand-filling apparatus.
2 1,200 ten thousand polymer of table is by viscosity (45 DEG C, 1000mg/L) before and after sandpack column
3 2,500 ten thousand polymer of table is by viscosity (45 DEG C, 1000mg/L) before and after sandpack column
Obtain from experimental result: sand mesh number is higher, and retention rate is lower, this is because sand partial size is smaller, specific surface area
It is bigger, caused by Polymer adsorption area is bigger；But absorption viscosity of the polymer solution in quartz sand retains as a whole
Rate is higher, and solution absorption is smaller.
Experimental data 3 produces sand back-up sand absorption research
Table 4 uses the extraction sand of different meshes respectively, and back-up sand compaction quality is 80g, makes polymer solution logical at 0.3MPa
Cross sand-filling apparatus, the viscosity change of measurement polymer solution absorption front and back.
4 1,200 ten thousand polymer of table is by viscosity (45 DEG C, 1000mg/L) before and after sandpack column
In terms of absorption result: solution viscosity retention rate reduces with the reduction of extraction sand grains diameter, in conjunction with the delivery time, really
Surely Grains number 40-60 mesh is produced.
The determination of 4 pressure of experimental data
Table 5 produces sand using 40-60 mesh, respectively at 0.1Mpa, 0.2MPa and 0.3MPa, makes polymer solution by filling out
Sand device, the viscosity change of measurement polymer solution absorption front and back.
5 2,500 ten thousand polymer different pressures of table are by viscosity (45 DEG C, 1000mg/L) before and after sandpack column
From the results of view: under 0.2MPa and 0.3MPa, polymer solution viscosity retention rate is close, in conjunction with the delivery time, really
Constant-pressure is 0.3MPa.
The determination of 5 flow of experimental data
Table 6 produces sand using 40-60 mesh, takes 100ml, 150ml and 200ml polymer solution respectively, at 0.3MPa, stream
Through back-up sand adsorbent equipment, the viscosity change of solution absorption front and back is measured.
6 2,500 ten thousand polymer of table is by viscosity (45 DEG C, 1000mg/L) before and after sandpack column
From the results of view: solution viscosity retention rate increases with the increase of liquid inventory, in conjunction with delivery time and fill out sand tube
Volume determines that elution volume is 150ml.
It is studied by above-mentioned a series of Experimental comparison, finally establishes experiment condition and the basis of back-up sand Adsorption Model
Parameter
| Sand | Mesh number (mesh) | Pressure (MPa) | Back-up sand quality (g) | Flow (ml) |
| Produce sand | 40-60 | 0.3 | 80 | 150 |
The present invention is suitable for screening a greater number sample, can be simple and direct quick, lower-cost effective evaluation porous media flow
It is dynamic that solution property is influenced, be conducive to compare more properties of sample superiority and inferiority；Using displacement of reservoir oil pipeline, multi-pass distributing valve connection filtering because
A variety of method detections may be implemented in the components such as sub-device and sand-filling tube model, core holding unit, and structure is simple, easy to operate, and
It can be improved on original filterable agent device.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn that the knots made under the inspiration of the present invention
Structure variation, the technical schemes that are same or similar to the present invention are fallen within the scope of protection of the present invention.
Claims (10)
1. a kind of method for evaluating polymer solution adsorptivity in porous media, which comprises the following steps: can
It is packed into the polymer solution of known performance parameter in the filterable agent device of default displacement pressure, sets the drive of filterable agent device
For pressure, then successively gathered described in displacement by the filterable agent device into the porous media model that several are sequentially connected in series
Polymer solution, and the polymer solution is made to flow through each porous media model, it is then flowed through with detecting instrument detection each
The performance parameter of the polymer solution of a porous media model, and the performance ginseng of the polymer solution is detected simultaneously
Variation of the number before and after displacement process.
2. evaluation polymer solution device used in the method for adsorptivity in porous media as described in claim 1,
Be characterized in that, including sequentially connected filterable agent device and porous media model, the porous media model be several simultaneously
It is mutually sequentially connected in series, there is pore structure not of uniform size, prepackage in the filterable agent device in the porous media model
The polymer solution of known performance parameter, the filterable agent device provide the polymerization described in displacement into the porous media model
The displacement pressure of object solution further includes detecting instrument, and the detecting instrument detects respectively flows through each porous media model
The polymer solution performance parameter, and detect the performance parameter of the polymer solution simultaneously before and after displacement process
Variation.
3. device as claimed in claim 2, which is characterized in that the filterable agent device and multiple porous media models it
Between and the two neighboring porous media model between connecting line on be respectively equipped with several multi-pass distributing valves, each
One outlet end is respectively equipped on the porous media model, each outlet end also is provided with the multi-pass distributing valve.
4. device as claimed in claim 2, which is characterized in that the filterable agent device include intermediate receptacle and with it is described in
Between container connect pressure system, it is known that the polymer solution of performance parameter is pre-installed in the intermediate receptacle, the pressure
Force system provides the displacement pressure of the polymer solution described in displacement into the porous media model.
5. device as claimed in claim 2, which is characterized in that be respectively arranged with pressure survey on each porous media model
Try mouth.
6. device as claimed in claim 3, which is characterized in that be connected separately with monitoring displacement on each multi-pass distributing valve
The pressure gauge of pressure change in the process.
7. device as claimed in claim 2, which is characterized in that the porous media model is that sand-filling tube model pipe or rock core press from both sides
Device is set, adds different type rock core in the sandwiched device of rock core.
8. device as claimed in claim 7, which is characterized in that described to fill out when the porous media model is sand-filling tube model
Sandpipe model extends parallel to one another and perpendicularly relative to ground placement.
9. device as claimed in claim 2, which is characterized in that the displacement pressure value of the filterable agent device is 0.3MPa,
The volume of the polymer solution is 150ml.
10. device as claimed in claim 2, which is characterized in that the filterable agent device and each porous media mould
It is connected between type by displacement of reservoir oil pipeline.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029864A (en) * | 2021-03-03 | 2021-06-25 | 重庆科技学院 | Monitoring device and method for circularly testing dynamic adsorption capacity of polymer solution |
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| CN109057763A (en) * | 2018-07-27 | 2018-12-21 | 东北石油大学 | It realizes to the judgment method that emulsification position occurs in long cores |
| CN211370368U (en) * | 2019-07-24 | 2020-08-28 | 王雷 | Device for evaluating adsorbability of polymer solution in porous medium |
-
2019
- 2019-07-24 CN CN201910673035.4A patent/CN110410049A/en active Pending
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|---|---|---|---|---|
| GB2132664A (en) * | 1982-12-29 | 1984-07-11 | Stauffer Chemical Co | Enhanced oil recovery using alkaline/polymer flooding |
| CN202166583U (en) * | 2011-08-12 | 2012-03-14 | 东北石油大学 | Seepage distance change simulation experimental device of polymer solution in strata pores |
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