CN102794118A - Method and device for high efficiency preparation of oil-displacement polymer used for oil field - Google Patents
Method and device for high efficiency preparation of oil-displacement polymer used for oil field Download PDFInfo
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- CN102794118A CN102794118A CN2012103011314A CN201210301131A CN102794118A CN 102794118 A CN102794118 A CN 102794118A CN 2012103011314 A CN2012103011314 A CN 2012103011314A CN 201210301131 A CN201210301131 A CN 201210301131A CN 102794118 A CN102794118 A CN 102794118A
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Abstract
The invention discloses a method and a device for high efficiency preparation of an oil-displacement polymer used for an oil field. The device comprises a hopper, a draught fan, a clean water pump, a dissolution tank, a transfusion pump and an efflux pump. A bottom outlet of the hopper is connected to the draught fan. Outlet pipes of the draught fan and the clean water pump are connected to a top inlet of the dissolution tank. A bottom outlet of the dissolution tank is connected to the transfusion pump. An outlet of the transfusion pump is connected to a buffer tank by a high-efficiency blender. A bottom outlet of the buffer tank is connected to the efflux pump. The method comprises the following steps of pre-mixing a polymer aqueous solution in the dissolution tank according to a pre-mixing concentration of 4000-6000mg/L, feeding the mixed materials into the high-efficiency blender at a feeding rate of 10-12L/h.M<3>, and blending at a high-efficiency blender rotor sieve rotation rate of 300-600rpm. The method and the device realize fast preparation of a polymer mother liquor, realize complete and uniform dispersion of dry polymer powder in water in 10min, solve the problem that the traditional polymer preparation method has polymer blending time of 2-4h, do not need many polymer curing tanks, solve the problem that the traditional polymer preparation method has a complex flow and long curing time, and simplify a blending system process flow.
Description
Technical field
The invention belongs to mixing arrangement and method, as: dissolving, emulsification, dispersion particularly relate to oil field displacement of reservoir oil polymer high efficiency compound method and device.
Background technology
Prior art is the stirring preparation technique of conventional polymer mother liquor; Adopt the production unit crosslinking polymerization thing preparation station of this technology preparation; Usually adopt " dispersion-slaking-outer defeated " short flow process preparing process, one of restriction preparation ability key problem is curing time and slaking jar quantity.The slaking flow process of polymer adopts the overhead slaking jar of platform to stir curing process, and the curing time is long, floor space is big, energy consumption is high.Its main manner of formulation is: polymer dry powder and water after the jet dispersion, through stirring, be swelling to dissolving fully, are treated to use after the complete slaking of polymer mother liquor in surge tank.In this conventional preparation technique, polymer mother liquor must carry out long slaking (2-4 hour).Exist shortcomings such as process complicacy, dissolution time length, inefficiency.
Summary of the invention
The present invention provides a kind of oil field displacement of reservoir oil polymer high efficiency compound method and device, with the deficiency of the prior art of covering.
Oil field displacement of reservoir oil polymer high efficiency device for formulating of the present invention; By hopper, blower fan, clarified water pump, dissolving tank, transfer pump and output pump constitutes; Outlet at bottom at hopper connects blower fan, and the export pipeline of blower fan and clarified water pump all is connected to the top inlet of dissolving tank, and pump is transferred in the outlet at bottom connection of dissolving tank; Transfer delivery side of pump and connect surge tank through efficient dispenser, the outlet at bottom of surge tank connects output pump.
As further improvement of the present invention, on hopper, be provided with loader.
As further improvement of the present invention, described efficient dispenser is in the post shell, to be provided with concentric rotor sieve, and its hollow shaft passes the center of circle of the upper and lower surface of post shell, and the hollow shaft upper end penetrates liquid inlet core pipe, its sidewall has gas vent; The side of post shell is provided with the gas access, the bottom surface is provided with liquid outlet.
As further improvement of the present invention, the periphery of rotor sieve is that sieve plate constitutes.
As further improvement of the present invention, the surge tank outlet at bottom has return line to be connected to efficient dispenser inlet.
Oil field displacement of reservoir oil polymer high efficiency compound method of the present invention, realize through the following step:
A, the premix matched proportion density of aqueous solutions of polymers is (4000-6000) mg/L in dissolving tank;
The charging rate of b, efficient dispenser is (10-12) L/hM3;
The rotating speed of c, efficient dispenser rotor sieve is 300-600rpm.
Displacement of reservoir oil polymer high efficiency compound method in oil field of the present invention and device have been realized the quick preparation of polymer mother liquor, in 10min, can polymer dry powder be distributed in the water completely, and be uniformly dispersed, and viscosity is suitable after viscosity and the slaking of conventional prepared polymer mother liquor.Having overcome the traditional conventional prepared polymer needs 2-4 hour shortcoming, and does not need a lot of polymer slaking jars.Solve the problem that conventional process flow is complicated, the curing time is long, simplified the compounding system technological process.Technology of the present invention can not receive the restriction of polymer molecular weight size and compound concentration; The personalization that helps preparing with injecting scheme is adjusted; And be applicable to preparation process such as small-sized injection allocation experiment station and profile control, can realize that technology intensification, device miniaturization, parameter are personalized, the oil field gathered to drive exploitation significant.
Description of drawings
Fig. 1 is the structural representation of oil field displacement of reservoir oil polymer high efficiency device for formulating of the present invention;
Fig. 2 is efficient dispenser structural representation.
The specific embodiment
As shown in Figure 1; Oil field displacement of reservoir oil polymer high efficiency device for formulating of the present invention, by hopper 2, blower fan 3, clarified water pump 4, dissolving tank 5, transfer pump 6 and output pump 9 constitutes, the outlet at bottom of hopper 2 connects blower fan 3; The export pipeline of blower fan 3 and clarified water pump 4 all is connected to the top of dissolving tank 5; Pump 6 is transferred in the outlet at bottom connection of dissolving tank 5, and the outlet of transferring pump 6 connects surge tanks 8 through efficient dispenser 7, and the outlet at bottom of surge tank 8 connects output pump 9.On hopper 2, be provided with loader 1.Surge tank 8 outlet at bottoms have return line 17 to be connected to efficient dispenser 7 inlets.
In practical implementation; The present invention be through polymer dry powder after the aqueous solution gets into efficient dispenser; Polymer mother liquor viscosity through coming out is very high, and after circulation got into efficient device for formulating 1～3 time, polymer mother liquor can reach viscosity after the slaking of conventional prepared polymer mother liquor.Efficiently dispenser makes flow process shortening, device simplification, efficient improve, lower equipment investment and operating cost through after changing device structure.
As shown in Figure 2; Oil field displacement of reservoir oil polymer high efficiency device for formulating of the present invention; Its efficient dispenser 7 is to be provided with concentric rotor sieve 13 in the post shell 12, and its hollow shaft 14 passes the center of circle of the upper and lower surface of post shell 12, and hollow shaft 14 upper ends penetrate liquid inlet core pipe 10, its sidewall has gas vent 11; The side of post shell 12 is provided with gas access 15, the bottom surface is provided with liquid outlet 16.The periphery of rotor sieve 13 is that sieve plate constitutes.This efficient dispenser mainly is to utilize the hypergravity principle, and polymer dry powder only need get into the high viscosity that can realize polymer mother liquor in the efficient dispenser with water.
Under the hypergravity environment bigger hundreds of times to thousand times than earth gravitational field; Different material flows in porous media or duct and contacts; Powerful shearing force is torn film forming, silk with liquid phase material and is dripped; Produce huge and boundary fast updating, make raising 1～3 one magnitude in the traditional tower of interphase mass transfer speed ratio, microcosmic molecular mixing and mass transport process obtain highly enriched.Simultaneously, the linear velocity of gas also can increase substantially, and this makes the production efficiency of unit equipment volume improve 1～2 one magnitude, and equipment volume is significantly dwindled.On earth, the short-cut method of realization hypergravity environment is to produce centrifugal force through rotation to simulate realization.The slewing of particular design is called as hypergravity equipment or hypergravity machine like this.Oil field displacement of reservoir oil polymer formulation high efficiency method of the present invention has just been used this technology with the efficient dispenser 7 in the device.Efficient dispenser 7 rotation at a high speed under the drive of motor, the polymer dry powder and the aqueous solution are transferred pump 6 and are driven into 7 li of efficient dispenser, accomplish the efficient preparation of polymer mother liquor.
Oil field displacement of reservoir oil polymer high efficiency compound method of the present invention is following:
Powder that a, hopper are 2 li and clear water get in the dissolving tank 5 and mix, and the premix matched proportion density of its aqueous solutions of polymers is (4000-6000) mg/L;
B, the back material that is mixed get in the efficient dispenser 7 through transmission pump 6; Its charging rate is confirmed according to the volume of efficient dispenser 7; The efficient dispenser charging rate that is every cubic metre is (10-12) L/h; If the volume of efficient dispenser 7 is 3 cubic metres, its charging rate is (30～36) L/h so; The rotating speed of efficient dispenser 7 rotors sieve 13 is 300～600rpm; Its rotating speed and charging rate be can be according to the type of dry powder different with molecular weight does suitable adjustment.
The outlet material of c, efficient dispenser 7 gets into surge tank 8, and the outlet material of surge tank 8 gets into efficient dispenser 7 again through return line 17, and after three times, the material that surge tank is 8 li gets into output pump 9 outputs through product outlet so repeatedly.
Utilize efficient compound method of the present invention, take by weighing polymer 2.735g, water 497.265g at first carries out premix, and its concentration is 5000mg/L; Contain the not lysigenous grain of a large amount of solids group in the formed premixed liquid, premixed liquid is squeezed in the efficient dispenser by pump, and its rotating speed is 300～600rpm; Charging rate is 180ml/min, and the aqueous solutions of polymers after efficient dispenser is handled does not have solid and do not dissolve grain group, promptly accomplishes the polymer formulation process.
Claims (6)
1. oil field displacement of reservoir oil polymer high efficiency device for formulating; By hopper (2), blower fan (3), clarified water pump (4), dissolving tank (5), transfer pump (6) and output pump (9) and constitute; The outlet at bottom that it is characterized in that hopper (2) connects blower fan (3); The export pipeline of blower fan (3) and clarified water pump (4) all is connected to the top inlet of dissolving tank (5); Pump (6) is transferred in the outlet at bottom connection of dissolving tank (5), and the outlet of transferring pump (6) connects surge tank (8) through efficient dispenser (7), and the outlet at bottom of surge tank (8) connects output pump (9).
2. oil field displacement of reservoir oil polymer high efficiency device for formulating as claimed in claim 1 is characterized in that hopper (2) is provided with loader (1).
3. oil field displacement of reservoir oil polymer high efficiency device for formulating as claimed in claim 1; It is characterized in that efficient dispenser (7) is in post shell (12), to be provided with concentric rotor sieve (13); Its hollow shaft (14) passes the center of circle of the upper and lower surface of post shell (12), and hollow shaft (14) upper end penetrates liquid inlet core pipe (10), its sidewall has gas vent (11); The side of post shell (12) is provided with gas access (15), the bottom surface is provided with liquid outlet (16).
4. oil field displacement of reservoir oil polymer high efficiency device for formulating as claimed in claim 3, the periphery that it is characterized in that rotor sieve (13) are that sieve plate constitutes.
5. like claim 1 or 2 or 3 or 4 described oil field displacement of reservoir oil polymer high efficiency device for formulating, it is characterized in that surge tank (8) outlet at bottom has return line (17) to be connected to efficient dispenser (7) inlet.
6. oil field displacement of reservoir oil polymer high efficiency compound method, realize through the following step:
A, the premix matched proportion density of aqueous solutions of polymers is (4000-6000) mg/L in dissolving tank (5);
The charging rate of b, efficient dispenser (7) is (10-12) L/hM3;
The rotating speed of c, efficient dispenser (7) rotor sieve (13) is 300-600rpm.
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| CN201210301131.4A CN102794118B (en) | 2012-08-23 | 2012-08-23 | Method and device for high efficiency preparation of oil-displacement polymer used for oil field |
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| CN201210301131.4A CN102794118B (en) | 2012-08-23 | 2012-08-23 | Method and device for high efficiency preparation of oil-displacement polymer used for oil field |
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| CN102794118B CN102794118B (en) | 2014-08-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055750A (en) * | 2012-12-08 | 2013-04-24 | 中北大学 | Rapid dissolving system of water-soluble polymers and method thereof |
| CN103877879A (en) * | 2012-12-19 | 2014-06-25 | 北京化工大学 | Method for rapidly preparing polymer solution for oil displacement |
| CN105921038A (en) * | 2016-05-18 | 2016-09-07 | 中国石油天然气股份有限公司 | Curing device for chemical flooding oil extraction and polymer preparation system |
| CN115007042A (en) * | 2022-04-18 | 2022-09-06 | 西南石油大学 | Polymer superstrong forced instant dissolution device and dissolution method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105921038A (en) * | 2016-05-18 | 2016-09-07 | 中国石油天然气股份有限公司 | Curing device for chemical flooding oil extraction and polymer preparation system |
| CN105921038B (en) * | 2016-05-18 | 2018-09-04 | 中国石油天然气股份有限公司 | Ripening device used and polymer formulation system for chemical thermal equilibrium |
| CN115007042A (en) * | 2022-04-18 | 2022-09-06 | 西南石油大学 | Polymer superstrong forced instant dissolution device and dissolution method thereof |
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| CN102794118B (en) | 2014-08-13 |
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Inventor after: Zhao Hong Inventor after: Chen Jianfeng Inventor after: Dong Xigui Inventor after: Zhang Liangliang Inventor after: Zhao Jinyi Inventor after: Luo Yong Inventor after: Chu Guangwen Inventor after: Zou Haikui Inventor after: Feng Bo Inventor before: Feng Bo Inventor before: Dong Xigui Inventor before: Zhao Jinyi Inventor before: Zhao Yanwen Inventor before: Li Guoqiao |
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Effective date of registration: 20160215 Address after: 215000 No. 1218, Fengyang Road, Suzhou, Jiangsu, Xiangcheng District Patentee after: SUZHOU (XIANGCHENG) RESEARCH INSTITUTE, BUCT Patentee after: Suzhou HiGee Environment & Energy Technology Co., Ltd. Address before: Torch high tech Zone in Heilongjiang province Daqing city street 163316 No. 40 emerging industry incubator building 4, room 808, block A Patentee before: Feng Bo |