CN1817428A - Polymer with ultrahigh molecular weight hydrolytic agitator - Google Patents
Polymer with ultrahigh molecular weight hydrolytic agitator Download PDFInfo
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- CN1817428A CN1817428A CN200510136071.5A CN200510136071A CN1817428A CN 1817428 A CN1817428 A CN 1817428A CN 200510136071 A CN200510136071 A CN 200510136071A CN 1817428 A CN1817428 A CN 1817428A
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- polymer
- molecular weight
- agitator
- ultrahigh molecular
- hydrolytic
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Abstract
A stirring apparatus for hydrolyzing polymer within 2 hr is composed of speed reducer, supporting frame, stirring tank and stirring system consisting of shaft coupling, screw rod, two spiral bands and multiple pairs of stirring arms.
Description
Technical field
The present invention relates to the mixing plant of non-newtonian fluid, a kind of polymer with ultrahigh molecular weight hydrolytic agitator of more specifically saying so.
Background technology
In all methods that improve oil recovery, polymer displacement of reservoir oil is with fastest developing speed at present and has a kind of new method of very big potentiality.Technique of polymer flooding is comparatively ripe.This technology has stronger adaptability to the materialization environment of China's oil reservoir, and in the oil field wide popularization and application, and having obtained oil displacement efficiency preferably, recovery ratio can be brought up to more than 10%.
Because polymer flooding is high molecular weight polymers or composite high-molecular polymer, molecular weight is 2.0 * 10
7More than the g/mol.But, no matter be polymer solution or compound system, its hydrolytic process is as a ring important in the whole displacement of reservoir oil technical process, and preparing used agitating device is key factor.
The polymer molecular weight of using is 1.5 * 10 at present
7～3.5 * 10
7G/mol, the concentration of high molecular weight polymers solution is 3000～7000mg/L in the agitator tank, the design volume of agitator tank is 100～250m
3
The agitating device that becomes known for this type of polymer with ultrahigh molecular weight hydrolytic process is double-deck three leaf propeller agitators.This agitator is double-deck oar, and every layer of oar has three pusher blades, and its blade is detachable.
This kind agitator makes the polymer hydrolysis process need 4～6 hours of super high molecular weight, because use this kind agitator flow field the large tracts of land stagnant areas is arranged again, and hydrolysis is incomplete, forms the gel insoluble matter, and solution concentration, viscosity heterogeneity influence oil displacement efficiency.
The polymer hydrolysis overlong time of super high molecular weight; The flow field is mixed inhomogeneous, and hydrolytic process is incomplete.Cause polymer solution viscoplasticity to descend, thereby influence oil displacement efficiency.
Summary of the invention
Therefore the purpose of this invention is to provide a kind of agitating device that can in large-scale tank diameter, make super high molecular weight polymer finish hydrolytic process in the short time; And can realize the mixing in whole flow field zone, solution concentration, viscoplasticity uniformity.
The objective of the invention is to be achieved through the following technical solutions.
A kind of polymer with ultrahigh molecular weight hydrolytic agitator, it is made up of reductor 1, support 2, tank diameter 3 and stirring system 4, it is characterized in that the stirring system comprises shaft coupling 6,9, two ribbons 8 of screw rod that fixedly spiral around axle 10 and many to mixing arm 7 of carrying; Reductor 1 is connected with support 2 by shaft coupling 5, and shaft coupling 6 connection support and shafts 10 manyly are fixed on the shaft mixing arm, and are connected with two ribbons 8, and two ribbon rotation directions are identical, and ribbon 8 is opposite with screw rod 9 rotation directions.
Described shaft is positioned at the tank diameter center.
Described two ribbons are two ribbons or inside and outside single ribbons of symmetry, are fixed in many on the mixing arm.
Described ribbon whenever revolves 90 ° around reel, designs a pair of mixing arm.
The cross section of described mixing arm 7 can be circle, rectangle or other shape.
The cell body of described tank diameter is cylindrical, and bottom land is flat, the oval end or conical bottom, and tank diameter design volume is 100～250m
3
Described tank diameter is that stainless steel or enamel material are made.Shaft 10 is that stainless steel material is made.Screw rod, ribbon and mixing arm are that stainless steel or highstrenghtpiston make.
The optimum operation rotating speed of stirring system is between 10～13r/min, and the two ribbon diameter of propeller blade of stirring system are at 4.0～4.95m.
The relative molecular weight of described super high molecular weight polymer is 1.5 * 10
7～3.5 * 10
7G/mol, the concentration of polymer solution is 3000～7000mg/L.
This apparatus features is: agitating device is type at a slow speed, in the laminar region operation, reduces because shear action causes the polymer solution viscosity loss; Article two, ribbon and the screw rod opposite with its rotation direction, propelling fluid produces slipstream and axial flow during rotation, makes liquid move upward or move downward along helicoid with spiral path, forms good axial circulation, pot liquid is flowed from top to bottom, promoted the mixing of agitator tank inner fluid; The ribbon gabarit approaches the tank diameter inwall, and it is big to stir diameter, has strengthened the mixing of nearly tank skin regional fluid; Stirring system has that many direction of every pair of mixing arm is adjustable to supporting the mixing arm of two ribbons, and mixing arm can be considered flat oar or oblique leaf oar, strengthens the Radial Flow in flow field, and the less turbulence of enhance fluid makes it more help mixing.Carry a screw rod and strengthened the circulation of near axis area fluid again around axle.
The invention has the beneficial effects as follows, can in 2 hours, finish the hydrolytic process of polymer; The operation rotating speed is low, has reduced the shear action to the high molecular polymer strand, has improved the apparent viscosity of aqueous solutions of polymers; Realize the mixing in whole flow field zone, solution concentration, viscoplasticity uniformity.Guarantee carrying out smoothly of whole injection process, improve oil displacement efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an assembling schematic diagram of the present invention;
Fig. 3 is a vertical view of the present invention.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
Embodiment 1:
Shown in Fig. 1,2 and 3, supra polymer polymer hydrolysis agitating device, reductor 1 is connected with support 2 by shaft coupling 5, and support 2 is connected with shaft 10 by shaft coupling 6 again; Shaft 10 passes the axis of tank diameter 3, and shaft 10 is a cantilevered axle, and screw rod 9 that revolves around reel of shaft 10 carrying manyly is fixed on the shaft 10 mixing arm 7, and vertical with shaft 10; Adjacent two pairs of mixing arms are vertical mutually, many mixing arm 7 are connected with two ribbons 8, and ribbon 8 every half-twists are established a pair of mixing arm, and it is a pitch that ribbon rotates a circle, and two ribbon direction of rotation are opposite with the rotation direction of screw rod.Designing the shape of nearly bottom land mixing arm according to the tank diameter bottom shape, is flat as tank diameter, and then mixing arm is flat oar; If bottom land is a conical bottom, mixing arm is designed to taper.
Design example:
Problem: the tank diameter diameter is 5.5 meters of Φ, high 5.5 meters (the cylinder straight section is seen accompanying drawing 1), bottom land is flat, the design volume is 130m
3, the molecular weight of polymer is 2.5 * 10
7G/mol, solution concentration is 5000mg/L.Requirement is finished polymer hydrolysis process at 120min.
Scheme: according to test data and the rheol analog result of calculating, the result is as follows to the problems referred to above design agitating device:
1. operating condition: agitator shaft speed is 10～13r/min, and power of motor is 37kW.
2. the design data of two ribbon-screw rods is as shown in table 1.
3. the concrete implementation result of agitating device is seen " beneficial effect ".
Table 1 pair ribbon-screw rod design data
| Two ribbon diameter of propeller blade/m | Screw rod diameter of propeller blade/m |
| 4.50 | 1.25 |
The polymer with ultrahigh molecular weight hydrolytic agitator that the present invention proposes carries out commerical test in Daqing oil field oil extraction No.1 Factory, oil recovery two factories and four factories of recovering the oil, and the volume of used tank diameter is 130m
3, the molecular weight of polymer is 2.5 * 10
7G/mol, solution concentration is 5000mg/L.Test simultaneously with using the pusher agitating device of double-layer spiral, described in result of the test such as the table 2.
Two kinds of agitator commercial test results contrasts of table 2
| Title | Agitating device of the present invention | The pusher agitating device of double-layer spiral |
| Hydrolysis time/min | 90～120 | 210～240 |
| Viscosity/mPa ° of s | 1297 | 1152 |
| Power/kW | 19.5 | 22.0 |
| The solution The apparent phenomenon | Bubble is tiny and even, and the solution transparency is good | The bubble size is uneven, the solution poor transparency |
The polymer with ultrahigh molecular weight hydrolytic agitator that the present invention proposes is keeping solution viscosity, power consumption, and aspects such as hydrolysis time are superior more many than the screw-pushing type agitating device of using now.Viscosity improves more than 10%; Hydrolysis time has shortened half; Power consumption slightly descends.
Open and the polymer with ultrahigh molecular weight hydrolytic agitator that proposes of the present invention, those skilled in the art can be by using for reference this paper content, and links such as appropriate change structure and assembly realize.Device of the present invention is described by preferred embodiment, and person skilled obviously can be changed or suitably change and combination instrument as herein described in not breaking away from content of the present invention, spirit and scope, realizes the technology of the present invention.Special needs to be pointed out is, the replacement that all are similar and change apparent to those skilled in the artly, they are regarded as being included in spirit of the present invention, scope and the content.
Claims (10)
1. polymer with ultrahigh molecular weight hydrolytic agitator, it is made up of reductor (1), support (2), tank diameter (3) and stirring system (4), it is characterized in that the stirring system comprises shaft coupling (6), screw rod (9) that fixedly spirals around axle (10) of carrying, two ribbons (8) and many to mixing arm (7); Reductor (1) is connected with support (2) by shaft coupling (5), shaft coupling (6) connects support and shaft (10), many mixing arm is fixed on the shaft, and is connected with two ribbons (8), article two, the ribbon rotation direction is identical, and ribbon (8) is opposite with screw rod (9) rotation direction.
2. a kind of polymer with ultrahigh molecular weight hydrolytic agitator as claimed in claim 1 is characterized in that described shaft is positioned at the tank diameter center.
3. a kind of polymer with ultrahigh molecular weight hydrolytic agitator as claimed in claim 1 is characterized in that described two ribbons are two ribbons or inside and outside single ribbons of symmetry.
4. a kind of polymer with ultrahigh molecular weight hydrolytic agitator as claimed in claim 3 is characterized in that described ribbon whenever revolves 90 ° around reel, designs a pair of mixing arm.
5. a kind of polymer with ultrahigh molecular weight hydrolytic agitator as claimed in claim 1 is characterized in that the cross section of described mixing arm 7 can be circle, rectangle or other shape.
6. a kind of polymer with ultrahigh molecular weight hydrolytic agitator as claimed in claim 1, the cell body that it is characterized in that described tank diameter is cylindrical, and bottom land is flat, the oval end or conical bottom, and tank diameter design volume is 100～250m
3, tank diameter is that stainless steel or enamel material are made.
7. a kind of polymer with ultrahigh molecular weight hydrolytic agitator as claimed in claim 1 is characterized in that described shaft 10 is that stainless steel material is made.
8. a kind of polymer with ultrahigh molecular weight hydrolytic agitator as claimed in claim 1 is characterized in that described screw rod, ribbon and mixing arm are that stainless steel or highstrenghtpiston make.
9. a kind of polymer with ultrahigh molecular weight hydrolytic agitator as claimed in claim 1 is characterized in that described stirring decorum optimum operation rotating speed between 10～13r/min, and the two ribbon diameter of propeller blade of agitator are at 4.0～4.95m.
10. a kind of polymer with ultrahigh molecular weight hydrolytic agitator as claimed in claim 1, the relative molecular weight that it is characterized in that described super high molecular weight polymer is 1.5 * 10
7～3.5 * 10
7G/mol, the concentration of polymer solution is 3000～7000mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510136071.5A CN1817428A (en) | 2005-12-31 | 2005-12-31 | Polymer with ultrahigh molecular weight hydrolytic agitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510136071.5A CN1817428A (en) | 2005-12-31 | 2005-12-31 | Polymer with ultrahigh molecular weight hydrolytic agitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1817428A true CN1817428A (en) | 2006-08-16 |
Family
ID=36917752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510136071.5A Pending CN1817428A (en) | 2005-12-31 | 2005-12-31 | Polymer with ultrahigh molecular weight hydrolytic agitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1817428A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820989B (en) * | 2007-10-12 | 2012-11-28 | S.P.C.M.股份公司 | Device for preparing dispersion of water-soluble polymers in water, and method implementing the device |
| CN107551897A (en) * | 2017-09-27 | 2018-01-09 | 广州中臣埃普科技有限公司 | A kind of ice slurry agitator |
| CN110140788A (en) * | 2019-04-28 | 2019-08-20 | 安徽乐氏食品有限公司 | A kind of functional chocolate preparation system and method containing black rice anthocyanin |
-
2005
- 2005-12-31 CN CN200510136071.5A patent/CN1817428A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820989B (en) * | 2007-10-12 | 2012-11-28 | S.P.C.M.股份公司 | Device for preparing dispersion of water-soluble polymers in water, and method implementing the device |
| CN107551897A (en) * | 2017-09-27 | 2018-01-09 | 广州中臣埃普科技有限公司 | A kind of ice slurry agitator |
| CN107551897B (en) * | 2017-09-27 | 2023-11-24 | 广州中臣埃普科技有限公司 | Ice slurry stirring barrel |
| CN110140788A (en) * | 2019-04-28 | 2019-08-20 | 安徽乐氏食品有限公司 | A kind of functional chocolate preparation system and method containing black rice anthocyanin |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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