CN207540931U - A kind of polymer solution tensile properties in porous media test system - Google Patents
A kind of polymer solution tensile properties in porous media test system Download PDFInfo
- Publication number
- CN207540931U CN207540931U CN201721699498.0U CN201721699498U CN207540931U CN 207540931 U CN207540931 U CN 207540931U CN 201721699498 U CN201721699498 U CN 201721699498U CN 207540931 U CN207540931 U CN 207540931U
- Authority
- CN
- China
- Prior art keywords
- porous media
- polymer solution
- polymer
- viscosity
- clamper
- 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.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model belongs to oil-gas mining technical field, and in particular to a kind of polymer solution, tensile properties test system in porous media, which mainly includes injected system, Porous Media system, Produced Liquid flux monitoring system；Test method includes S1, porous media permeability is tested；S2, polymer solution permeability and practical viscosity test in porous media migration process；The calculating of S3, polymer solution tensile viscosity；S4, the polymer solution draft flowing deformation in porous media are tested, the utility model can truely and accurately evaluate tensile viscosity and the draft flowing deformation that polymer generates in porous media, have great importance for the practical tensile property of evaluation Polymer Used For Oil Displacement in the earth formation.
Description
Technical field
The utility model belongs to oil-gas field development technical field, and in particular to a kind of polymer solution in porous media
Tensile properties test system, specially Polymer Used For Oil Displacement solution tensile viscosity and draft flowing deformation test system in porous media
System and test method.
Background technology
In oil-gas field development field, polymer flooding has the good effect for improving oil recovery, and oil field is to polymer
The shear viscosity of the main test polymer solution of performance evaluation, but polymer is in the earth formation from hole into throat migration process,
Due to varying aperture, there is viscoelastic polymer molecular chain to be stretched, generate tensile viscosity, therefore at present to polymeric shear
Viscosity test can not practical viscosity of the reaction polymer in the migration process of stratum, need test polymer stratum migrate
Tensile viscosity in the process and draft flowing deformation, at present to the test of Polymer Used For Oil Displacement tensile viscosity and draft flowing deformation, laboratory
Generally using the CaBER stretching rheometers of power ＆ light company's manufacture production, it is using capillary fracture technique, is measured due to fluid
The variation of fluid filaments diameter caused by surface tension stretches, so as to characterize the tensile viscosity of fluid and draft flowing deformation.The drawing
The characterization for stretching rheological characteristic has the shortcomings that following.
(1) test of CaBER stretching rheometers is polymer macroscopic body phase draft flowing deformation, it is impossible to reflect that polymer passes through
Shout the tensile viscosity and draft flowing deformation that size is micron-sized porous media in hole.
(2) data that CaBER stretching rheometers measure are larger, the shear viscosity and shearing of the data obtained and polymer solution
Rheological characteristic can not compare, and can not determine polymer tensile viscosity and shear viscosity institute accounting in the porous media migration process of stratum
Example proposes guidance so as to design polymer architecture.
Due to polymer stratum porous media from the tensile viscosity that hole is generated into throat migration process for improve
Oil recovery has great importance, and existing polymer stretching rheometer test device can not true and accurate evaluation polymer
The tensile viscosity generated in the porous media migration process of stratum.Therefore design can evaluate polymer and migrate in porous media
Tensile viscosity and the test system of draft flowing deformation are generated in the earth formation for true and accurate evaluation polymer solution in journey
Tensile viscosity has great importance.
Utility model content
The purpose of this utility model is to solve the shortcomings of the prior art, provides a kind of polymer solution more
Tensile properties test system in the medium of hole, can truely and accurately evaluate tensile viscosity that polymer generates in porous media and
Draft flowing deformation.
The purpose of this utility model can be achieved through the following technical solutions：
Polymer solution tensile properties in porous media test system, including injected system, Porous Media system,
Produced Liquid flux monitoring system；As shown in Figure 1,
(1) injected system includes：Receive the air compressor machine (A) of computer (H) pressure signal and molten for holding polymer
The liquid storing cup (B) of liquid；Air compressor machine (A) is connected with liquid storing cup (B) by stripper rubber pipeline；
(2) the Porous Media system described in includes：The clamper (D) of porous media (E) and porous media；Clamper
Be divided into the top part and the bottom part point, lower part (D1) equipped with the stainless steel cylindrical groove for placing porous media, top (D3) equipped with O-shaped slot, more
Upper O-ring seal (D2) is padded above the medium of hole, O-ring seal (D2) is fitted into the O-shaped slot on clamper top；Two above and below clamper
(F) connection is locked with stainless steel and is tightened in part；And clamper is connect with liquid storing cup by being equipped with the pipeline of control valve (C)；
(3) Produced Liquid flux monitoring system described in produces the electronic balance (G) of flow quantity for automatic record, and to electricity
Brain (H) output flow signal.
The purpose of this utility model can also be achieved through the following technical solutions：
Porous media described in the test system is sintered by the high-boron-silicon glass or quartz sand of different meshes, porous
Media peripheral is wrapped up by the high canopy silica glass of annular, thickness 0.5-0.7cm.
Porous media described in the test system is cylindrical a diameter of 3.8-4cm, thickness 0.8-1cm.
Stainless steel cylindrical groove a diameter of 4-5cm, depth 0.9-1.1cm described in the test system.
The System Working Principle is explained as follows：
Computer control injection pressure is utilized during test, makes the glycerine of certain viscosity respectively, polymer solution, subsequently equally glue
The glycerine of degree monitors three kinds of flow rate of liquid using Produced Liquid flux monitoring system, utilizes darcy by Porous Media system
Permeability and practical viscosity of the polymer solution during Porous Media under the conditions of certain flow rate is calculated in formula；So
Afterwards using rheometer test polymer solution shear rheological curve, and the curve is fitted with power-law function, obtains polymeric shear
Rheology power-law exponent substitutes into n on the Hirasaki shear rate models of deformation, polymer solution is calculated with certain flow rate
Shear rate in porous media migration process；Finally using rheometer test polymer solution in porous media migration process
Shear viscosity under the conditions of medium shear rate, tensile viscosity of the polymer in porous media migration process are polymer porous
Practical viscosity in medium flow event subtracts the shear viscosity that rheometer measures.Pressure is injected by change, tests different pressures
Under the conditions of power, shear rate of the polymer solution in porous media, polymer is porous under the conditions of obtaining different shear rate
Tensile viscosity in medium finally obtains the Polymer Solutions In Porous Media draft flowing deformation curve in certain permeability.
Description of the drawings
Fig. 1 shows polymer, tensile viscosity and draft flowing deformation test system in porous media；
A：Air compressor machine；B：Liquid storing cup；C：Control valve；D：Clamper；E：Porous media；F：Stainless steel is locked；：G：Electronics day
It is flat；H：；D1：Clamper lower part；D2：O-ring seal；D3：Part on clamper；
Fig. 2 represents 5# polymer solutions relationship of flow velocity and pressure in porous media；
Fig. 3 represents 5# polymer draft flowing deformation curve and shear rheology curve comparison in porous media.
Specific embodiment
The utility model is further illustrated below by embodiment, but be not limited to following embodiment.
(1) polymer solution tensile properties in porous media test system
Polymer solution tensile viscosity and draft flowing deformation test system in porous media, it is porous including injected system
Medium osmotic system, Produced Liquid flux monitoring system；As shown in Figure 1,
(1) injected system includes：Receive the air compressor machine (A) of computer (H) pressure signal and molten for holding polymer
The liquid storing cup (B) of liquid；Air compressor machine (A) is connected with liquid storing cup (B) by stripper rubber pipeline；
(2) the Porous Media system described in includes：The clamper (D) of porous media (E) and porous media；Porous Jie
Matter periphery is wrapped up by the high canopy silica glass of annular, thickness 0.5-0.7cm；Clamper is divided into the top part and the bottom part point, and lower part (D1) is equipped with putting
The stainless steel cylindrical groove of porous media is put, top (D3) pads upper O-ring seal (D2) equipped with O-shaped slot, on porous media face,
O-ring seal (D2) is fitted into the O-shaped slot on clamper top；Clamper up and down lock (F) connection with stainless steel and tighten by two parts；
And clamper is connect with liquid storing cup by being equipped with the pipeline of control valve (C)；
(3) Produced Liquid flux monitoring system described in produces the electronic balance (G) of flow quantity for automatic record, and to electricity
Brain (H) output flow signal.
(2) specific testing procedure：Using the test system described in (one)
The specific testing procedure of test system includes：
S1, the test of porous media permeability；
Under certain pressure △ P-conditions, it is μ to make viscositygGlycerine by area be A, thickness be L Porous Media
System, Produced Liquid flux monitoring system record glycerine flow Q automaticallyg, porous media permeability is tested using Darcy's law, is calculated
Formula such as formula (1-1)：
Kg=QgμgL/(A△P) (1-1)
Kg：Porous media permeability；Qg：Glycerine flow in unit interval；μg：Glycerine viscosity；
L：Porous media length；A：Porous media sectional area；△P：Pressure difference.
S2, polymer solution permeability and practical viscosity test in porous media migration process；
In the case where pressure is △ P-condition, it is μ to make viscositygGlycerine by porous media, then make certain density polymer
Solution is by porous media, and after stability of flow, computer records polymer solution flow as Q automaticallyP, subsequently continue to inject sweet
Oil, after glycerine pressure stability, the stabilization flow velocity for recording glycerine is Qgf, then it is assumed that the infiltration that glycerine passes through porous media at this time
Rate is equal to permeability of the polymer solution by porous media, calculation formula such as formula (1-2)；
Kp=Kgf=QgfμgL/(A△P) (1-2)
Kp：Polymer solution is in the permeability of porous media migration process；Qgf：Glycerine flow in unit interval；μg：It is sweet
Oil viscosity；L：Porous media length；A：Porous media sectional area；△P：Pressure difference.
Formula (1-3) is obtained according to (1-1) and (1-2)：
Kp=(Qgf/Qg)*Kg (1-3)
Known polymer solution passes through porous media flow QP, permeability Kp, pressure is under △ P-conditions, utilizes darcy public
Formula calculates polymer solution and passes through porous media practical viscosity μp, calculation formula such as formula (1-4)：
μp=KpA△P/(QpL) (1-4)
The calculating of S3, polymer solution tensile viscosity；Polymer is in the practical viscosity μ of porous mediapIt is by shear viscosity μs
With tensile viscosity μeIt forms, therefore tensile viscosity μ of the polymer in porous media migration processeValue be calculation formula such as formula
(1-5)：
μe=μp-μs (1-5)
Wherein, polymer solution shear viscosity μ in porous mediaeTester method is：
The first step：Polymer solution is tested in porous media medium shear rate：
The shear rate test of polymer solution, using the shear rheology curve of rheometer test polymer solution, is used in combination
Power-law function is fitted the curve, obtains the shear rheology power-law exponent of polymer solution, n values is substituted into the Hirasaki of deformation
Shear rate model calculates polymer solution and migrates in porous media
The shear rate γ of processp, calculation formula such as formula (1-6)；
γpPolymer Solutions In Porous Media shear rate；N- polymer solution shear rheology power law indexs
C- porous media coefficients of torsion, value 1.8；VPDarcy velocity of the polymer in porous media
KpPermeability of the polymer in porous media；The porosity of φ-porous media
Second step, using rheometer test polymer solution in porous media migration process medium shear rate γpUnder the conditions of
Shear viscosity μs。
(3) specific embodiment experiment is carried out by the test method that (two) provide
Embodiment 1
Stretching of the main test polymer solution of the embodiment in porous media migration process under the conditions of certain shear rate
Viscosity.
Injection pressure is 0.01MPa, and glycerine viscosity is 53.8mPas, and porous media is high-boron-silicon glass, porous media
Thickness is 1cm, a diameter of 4.0cm, area 12.6cm2, porosity 28%, polymer type is mining site with four kinds of routines
The poly- propionamide of partial hydrolysis, number 1#, 2#, 3#, 4#, intrinsic viscosity are respectively 2650mL/g, 2780mL/g, 2590mL/g,
2760mL/g, polymer solution concentration are all 1200mg/L, and prepared polymer solution water salinity is 2100mg/L, by more
With 10 μm of membrane filtrations before the medium of hole, rheometer is Anton Paar MCR301 type rotational rheometers, fixture CC27, sleeve measurement
Pattern.
The Glycerol flow rates of device record are 47.8mL/min, and the flow velocity that four kinds of polymer solutions pass through porous media is respectively
11.30mL/min, 7.27mL/min, 5.78mL/min, 13.8mL/min, the flow velocity that follow-up glycerine passes through porous media are respectively
40.2mL/min, 39.8mL/min, 41.5mL/min, 40.5mL/min.
The shear rheology curve power-law exponent of the four kinds of polymer obtained by rheometer test is respectively 0.59,0.51,
0.49、0.62。
Finally under 0.01MPa pressure conditions, the tensile viscosity that obtained four kinds of polymer generate in porous media is real
It tests as a result, as shown in table 1：
1 four kinds of polymer of table are migrated under the conditions of 0.01MPa in porous media the viscosity characteristics of generation
From experimental result table 1：The tensile viscosity that four kinds of polymer generate in porous media is relative to shear viscosity
Much higher, and under identical injection pressure condition, although four kinds of polymer intrinsic viscosities are suitable, difference is not yet for shear viscosity
Greatly, but four kinds of polymer tensile viscosities have a bigger difference, 3# polymer tensile viscosity highests, and 4# polymer tensile viscosities are minimum.
Embodiment 2
Drawing of the main test polymer solution of the embodiment in porous media migration process under the conditions of different shear rate
Stretch rheological characteristic.
In the embodiment, injection pressure is 0.01-0.15MPa, and glycerine viscosity is 53.8mPas, and porous media is high boron
Silica glass, porous media thickness are 0.85cm, a diameter of 3.8cm, area 11.3cm2, porosity 22%, polymer type
Poly- propionamide, number 5#, intrinsic viscosity 2850mL/g are being hydrolyzed with regular section for mining site, polymer concentration is
1200mg/L, prepared polymer water salinity is 2100mg/L, with 3 μm of membrane filtrations, rheometer before by porous media
For Anton Paar MCR301 type rotational rheometers, fixture CC27, sleeve measurement pattern.
The glycerine of device record flow velocity under 0.01MPa pressure is 1.35mL/min, and polymer solution is in different pressures item
It is as shown in Figure 2 by the flow velocity of porous media under part.
It is 0.70 by the shear rheology curve power-law exponent of 5# polymer that rheometer test obtains.
Finally under 0.01-0.15MPa pressure conditions, the draft flowing deformation that 5# polymer generates in porous media is obtained
With shear rheology experimental result for shown in Fig. 3 and table 2：
2 5# polymer draft flowing deformation parameter comparison in porous media of table
From table 2 and Fig. 3 experimental results：Although polymer draft flowing deformation and shear rheology curve are all in porous media
In power function relationship, but different power law features is presented in the two, and draft flowing deformation curve power-law exponent ＞ 1 shows with shear rate
Increase, tensile viscosity gradually increases, and shear rheology curve power-law exponent ＜ 1 shows to increase with shear rate, shear viscosity by
Gradually reduce.
In conclusion compared with the prior art, the utility model embodiment solve current laboratory stretching rheometer without
The tensile viscosity and the deficiency of draft flowing deformation that method true and accurate evaluation polymer generates in porous media, for evaluating the displacement of reservoir oil
There is great importance with the practical tensile property of polymer in the earth formation.
Particular embodiments described above has carried out into one the purpose of this utility model, technical solution and advantageous effect
Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, is not used to limit this
The protection domain of utility model, within the spirit and principle of the utility model, any modification for being made, changes equivalent replacement
Into etc., it should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of polymer solution tensile properties in porous media test system, which is characterized in that porous including injected system
Medium osmotic system, Produced Liquid flux monitoring system；
（1）The injected system includes：Receive the air compressor machine of computed pressure signal and the liquid storage for holding polymer solution
Cup；Air compressor machine is connected with liquid storing cup by stripper rubber pipeline；
（2）The Porous Media system includes：Porous media and porous media clamper；Clamper is divided into the top part and the bottom part
Point, lower part is equipped with the stainless steel cylindrical groove for placing porous media, and top is equipped with O-shaped slot, and face pad is upper O-shaped close on porous media
Seal, O-ring seal are fitted into the O-shaped slot on clamper top；Two parts stainless steel lock is connected and is tightened clamper up and down；And
And clamper is connect with liquid storing cup by being equipped with the pipeline of control valve；
（3）The Produced Liquid flux monitoring system produces the electronic balance of flow quantity for automatic record, and is exported to computer
Flow signal.
2. a kind of polymer solution according to claim 1 tensile properties in porous media test system, feature exists
In the porous media is sintered by the high-boron-silicon glass or quartz sand of different meshes, and porous media periphery is by annular high
Canopy silica glass wraps up, thickness 0.5-0.7cm.
3. a kind of polymer solution according to claim 1 tensile properties in porous media test system, feature exists
In the porous media is cylindrical a diameter of 3.8-4cm, thickness 0.8-1cm.
4. a kind of polymer solution according to claim 1 tensile properties in porous media test system, feature exists
In stainless steel cylindrical groove a diameter of 4-5cm, depth 0.9-1.1cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721699498.0U CN207540931U (en) | 2017-12-08 | 2017-12-08 | A kind of polymer solution tensile properties in porous media test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721699498.0U CN207540931U (en) | 2017-12-08 | 2017-12-08 | A kind of polymer solution tensile properties in porous media test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207540931U true CN207540931U (en) | 2018-06-26 |
Family
ID=62617867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721699498.0U Active CN207540931U (en) | 2017-12-08 | 2017-12-08 | A kind of polymer solution tensile properties in porous media test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207540931U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738303A (en) * | 2019-01-18 | 2019-05-10 | 中国石油化工股份有限公司 | Viscoelastic particle repeatedly shears particle size test macro and test method after filtering |
| CN109758958A (en) * | 2018-09-17 | 2019-05-17 | 中国石油天然气股份有限公司 | Aqueous solutions of polymers device for formulating and method for polymer flooding |
-
2017
- 2017-12-08 CN CN201721699498.0U patent/CN207540931U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758958A (en) * | 2018-09-17 | 2019-05-17 | 中国石油天然气股份有限公司 | Aqueous solutions of polymers device for formulating and method for polymer flooding |
| CN109738303A (en) * | 2019-01-18 | 2019-05-10 | 中国石油化工股份有限公司 | Viscoelastic particle repeatedly shears particle size test macro and test method after filtering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102507414B (en) | Core permeability experimental testing method and device under condition of stratum pressure | |
| CN110296921B (en) | Testing device and testing method for shale gas permeability under reservoir conditions in steady state method | |
| CN202330233U (en) | Experiment test device for permeability of rock core under condition of formation pressure | |
| CN109001438A (en) | A kind of joint seal gas shutoff experimental simulation device and test method | |
| CN207540931U (en) | A kind of polymer solution tensile properties in porous media test system | |
| CN109470617A (en) | A kind of quick experimental evaluation method of Fractured compact sandstone gas layer fluid speed | |
| CN107843522A (en) | Polymer solution tensile properties test system and method for testing in porous media | |
| CN203275179U (en) | Multifunctional waterborne polymer colloid performance testing device | |
| CN107656036B (en) | Experimental device and method for evaluating high-temperature high-pressure dynamic sealing and blocking effects | |
| CN105651665A (en) | Method for evaluating influence of drilling and completion fluid on oil and water permeability of rock core | |
| CN107725046A (en) | The apparatus and method of capillary force during a kind of evaluation reservoir water | |
| CN106290104B (en) | Without confining pressure permeability test device and its application method | |
| CN111220509A (en) | Oil-water relative permeability curve correction method considering permeability time-varying property | |
| CN105467085A (en) | Method for evaluating blocking effect of nanometer material | |
| CN110514571A (en) | A kind of high gas rate well sand control method and the preferred method of precision | |
| CN113075108A (en) | Rock core multiple stress sensitivity test method considering irreducible water saturation | |
| CN103743657A (en) | Experimental determination method for passing capability of polymer gel grains in porous medium | |
| CN102759604A (en) | Performance detection method of gel for water shutoff profile control | |
| CN111595731B (en) | Heterogeneous viscoelastic particle solution resistance coefficient testing system and testing method for oil displacement | |
| CN113310867A (en) | Experimental test method for simulating gas reservoir high-temperature high-pressure stratum reverse osmosis water absorption lock damage | |
| CN106321076B (en) | Water injection well starting pressure testing method | |
| CN105928829B (en) | A kind of experimental provision for monitoring polymer molecule high speed shear stability on-line | |
| CN105673003B (en) | A kind of fine and close oil exploitation physical simulation experiment method | |
| CN109932296B (en) | Method for quantitatively representing dynamic change of Jamin effect | |
| CN112082900B (en) | Testing device and method for improving gas injection accuracy of long core of low-permeability reservoir |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |