CN113413811B - High-temperature mixing device and method - Google Patents
High-temperature mixing device and method Download PDFInfo
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- CN113413811B CN113413811B CN202110363004.6A CN202110363004A CN113413811B CN 113413811 B CN113413811 B CN 113413811B CN 202110363004 A CN202110363004 A CN 202110363004A CN 113413811 B CN113413811 B CN 113413811B
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Abstract
The invention provides a high-temperature mixing device which comprises a mixing unit, a heating unit, a detection unit and a control unit. Through the piston mixer, the mixed flow jar, vibration, rotation, emulsification tank are used in the cooperation, improve high temperature oil-displacing agent's mixed effect by a wide margin, can accomplish oil-displacing agent emulsifying property evaluation under the high temperature condition, and the mixing condition is unified easily, and good repeatability can satisfy the operation requirement in the industrial scientific research production.
Description
Technical Field
The invention belongs to the technical field of oil displacement engineering processes, and particularly relates to a device and a method for preparing an oil displacement agent by mixing and emulsifying under a high-temperature condition.
Background
Petroleum is a non-renewable resource, most of domestic large oil fields are in the later stage of water flooding, but more than half of crude oil still remains underground, and a relatively effective tertiary oil recovery technology needs to be developed, so that the yield of the crude oil can be increased by 10-20%. The polymer flooding, the ternary combination flooding, the heterogeneous combination flooding and other technologies are the most widely applied technologies in tertiary oil recovery, and the performance characterization means and the result of the oil displacement agent are important bases for judging whether the tertiary oil recovery technology can be applied on site.
The emulsifying property of an oil-displacing agent system is an important parameter for representing the oil-displacing efficiency, and at present, the emulsifying property of the oil-displacing agent system can only be manually mixed at a medium and low temperature to form an emulsion, so that the result repeatability is poor, and the emulsifying property of the oil-displacing agent can not be evaluated under the condition of ultrahigh temperature. In addition, when the flow property and the oil displacement effect of the oil displacement agent are evaluated, the oil displacement agent system is complex in composition, and various components of the oil displacement agent system are required to be fully and uniformly mixed under the conditions of high temperature and high pressure. Therefore, an apparatus capable of evaluating the emulsification performance of the oil-displacing agent under ultra-high temperature conditions and uniformly mixing the oil-displacing agent system under high temperature and high pressure conditions is urgently needed.
Disclosure of Invention
In order to solve the above problems, the present inventors have conducted intensive studies and have provided a high-temperature mixing device which performs mixing and emulsification under high-temperature conditions under program control and can be used for mixing and emulsification of an oil displacement agent, an oil displacement agent and crude oil. The mixing unit can respectively realize the mixing and emulsification of the oil displacement agent in different degrees according to the requirement of the mixing degree, and realize the simulation of underground conditions, thereby completing the mixing and emulsification evaluation of the oil displacement agent and the like under the high-temperature condition.
It is an object of a first aspect of the present invention to provide a high temperature mixing device comprising a mixing unit, a heating unit, a detection unit and a control unit.
The mixing unit comprises a mixing part AT, a rotating shaft B, a first motor C1, a second motor C2 and a third motor C3. The rotating shaft B is connected with the mixing part AT, one end of the rotating shaft B is connected with the first motor C1 and the second motor C2, and the other end of the rotating shaft B is connected with the third motor C3. The first motor C1 works to enable the rotating shaft B to drive the mixing part AT to rotate, and the second motor C2 and the third motor C3 work simultaneously to enable the rotating shaft B to drive the mixing part AT to vibrate horizontally or vertically.
In a preferred embodiment of the invention, a mixing tank Y is arranged in front of the feed opening of the mixing element AT. An inlet is arranged on the side surface or the top of the mixed flow tank Y, and a plurality of laminate plates Y1 are arranged in the mixed flow tank Y. The laminated plate Y1 is provided with a material leakage opening Y2, the material leakage openings Y2 on two adjacent laminated plates Y1 are arranged in opposite directions, the material leakage opening Y2 of the laminated plate Y1 adjacent to the inlet is opposite to the inlet, and the material leakage opening Y2 of the laminated plate Y1 adjacent to the outlet is opposite to the outlet.
The mixing part AT comprises a piston mixer A, a cavity is formed in the piston mixer A, a piston is arranged in the piston mixer A, a first cavity A1 on one side of the piston is filled with pressure-bearing liquid, and a second cavity A2 on the other side of the piston is filled with a mixture to be mixed.
The mixing section AT also comprises an emulsification tank X. The lower end of an inlet X of the emulsification tank is provided with a vortex plate X1, and the vortex plate X1 is a vortex blade which is far away from the far end of a central shaft of the emulsification tank X and is fixed on the inner wall of the upper end of the emulsification tank X.
2-5 first-stage elastic sheets X2 are arranged in the emulsification tank X, one side of a triangle of the first-stage elastic sheets X2 is fixed on the inner side wall of the emulsification tank X, heterogeneous materials or premixed materials flow upwards, and the first-stage elastic sheets X2 are arranged below the vortex blades.
In a preferred embodiment of the present invention, the mixture in the emulsification tank X is guided into the swirling cylinder X4 by the guide cylinder X3 after flowing through the first-stage elastic sheet X2. The guide shell X3 is a cone-shaped guide shell X3 which gradually converges towards the middle from top to bottom.
The side surface of the rotary cylinder X4 is provided with a screen hole X401, an emulsifying plate X5 is arranged below the rotary cylinder X4, and the mixed liquid from the rotary cylinder X4 impacts an emulsifying plate X5 to carry out re-emulsification.
The emulsifying plate X5 is provided with a plurality of cone openings X501, and the outlet of the cone openings X501 is provided with two opposite second-stage elastic sheets X502.
The mixing element AT also comprises an array tube mixer T. The array tube mixer T comprises a plurality of support connecting rods T1, a support top plate T3, a support base T4, array tubes T5 and a blocking cover T6.
The second aspect of the invention aims at providing the application of the high-temperature mixing device, which is used for mixing an oil displacement agent or an oil displacement agent and crude oil, wherein the oil displacement agent is one of a polymer oil displacement agent, a ternary composite oil displacement agent, a surfactant oil displacement agent, a middle-phase microemulsion and a heterogeneous composite oil displacement agent.
The third aspect of the invention aims to provide a method for mixing an oil displacement agent or an oil displacement agent and crude oil at high temperature, which is carried out by using the high-temperature mixing device and specifically comprises the following steps:
step 1, adding a mixture to be mixed into a mixing part AT.
And 2, starting the device to heat and mix to obtain a treated mixture.
And 3, analyzing the state of the processed mixture, and discharging the mixture after the mixture meets the mixing requirement.
The high-temperature mixing device and the method provided by the invention have the following beneficial effects:
(1) the high-temperature mixing device provided by the invention is provided with the mixing unit, and can realize high-temperature mixing of the oil displacement agent by utilizing the piston mixer and simultaneously assisting various mixing means such as ultrasound, stirring, rotation and vibration under the constant temperature condition, so that the evaluation of the emulsification performance of the oil displacement agent under the high-temperature condition is completed.
(2) The simulated mixing of the oil displacing agent and the crude oil can be conveniently realized by utilizing the array tube mixer, and the problem that the performance of the oil displacing agent cannot be objectively evaluated because the emulsion can be formed only by manual mixing at a medium-low temperature at present is solved.
(3) According to the invention, the mixed flow tank is used for preliminarily mixing the oil displacement agent or the mixture of the oil displacement agent and the crude oil, so that the subsequent mixing difficulty is reduced, the mixing time is shortened, and the emulsifying and mixing effect of the mixture to be mixed is improved.
(4) Utilize emulsification tank and piston mixer cooperation to use, make the emulsification mix the effect and further obtain improving, improving the mixing speed, under the prerequisite of increase mixing volume, utilize vortex and resonance supersound to improve the area of contact of inside fluid to improve and mix the emulsification effect.
(5) Through the high-temperature mixing device, the mixing condition and the temperature condition are conveniently controlled, the evaluation of the performance of the oil displacement agent is facilitated, the operation parameters can be measured, the repeatability is good, and the requirements of actual scientific research and production are met.
Drawings
FIG. 1 is a schematic view showing the internal structure of a high-temperature mixing apparatus and a piston mixer A according to the present invention;
FIG. 2 shows a schematic diagram of a mixed flow tank Y of the present invention;
fig. 3 shows a schematic view of a mixed flow tank Y of the present invention;
FIG. 4 shows a schematic diagram of an emulsification tank X according to the invention;
fig. 5 shows a schematic structure of an array tube mixer T according to the present invention.
Description of the reference numerals
An AT-hybrid component;
b-a rotating shaft;
C1-Motor one;
C2-Motor two;
C3-Motor III;
l-a constant temperature box body;
i-a heating unit;
a Y-mix tank;
y1-layer plate;
y2-discharge hole;
a-a piston mixer;
A1-Cavity one;
A2-Cavity two;
j1-line one;
j2-line two;
g-a liquid pump;
d-a visual component;
an H-outlet line;
l-a constant temperature box body;
an O-ultrasonic oscillation member;
q-magnetic stirring means;
an X-emulsification tank;
x1-vortex plate;
x2-primary spring;
x3-draft tube;
x4-rotary drum;
x5-emulsification plate;
x501-cone;
x502-secondary spring;
t-array tube mixer
T1-bracket connection bar;
t3-bracket top plate;
t4-stent base;
t5-array tube;
t6-blocking cover;
t20-fastener;
m-a light-tight box body;
n-a box body;
k-control panel;
and S-a computer.
Detailed Description
The present invention will now be described in detail by way of specific embodiments, and features and advantages of the present invention will become more apparent and apparent from the following description.
The ternary composite oil displacement technology is the mainstream technology of the current chemical displacement, for example, dry powder type modified polyacrylic and emulsion type polymers are used for preparing ternary composite oil displacement agents. Among them, the dissolution of the dry powder type polymer is often carried out by water absorption, dissolution, aging, and the like. Wherein, the dissolution generally needs 2 to 6 hours, then the curing is carried out, and the curing process usually needs 24 hours, so that a longer time is needed to wait before the injection is applied on site, and the oil extraction production efficiency is reduced. In addition, in the ternary composite oil displacement agent, although some surfactants have excellent performance, the complex combination between the surfactants and polymers is not firm, so that the surfactants are adsorbed on rock stratums in the underground flowing process, the effective concentration of the surfactants is reduced, and the oil displacement effect is reduced.
The middle-phase microemulsion oil displacement technology is one of the most potential technologies in the tertiary oil recovery technology, but at present, efficient simulation equipment is lacked in a laboratory or an industrial test, the existing equipment is difficult to simulate the high-temperature condition under the stratum, the mixing efficiency of a surfactant and crude oil is low, a good surfactant is difficult to efficiently screen, the verification efficiency of the potential good surfactant is also low, and the performance of the oil displacement agent is difficult to rapidly and objectively evaluate.
The excellent surfactant oil displacement agent is usually a compound of various surfactants with different physical and chemical properties, and the selected surfactant has large difference between hydrophilicity and hydrophobicity and viscosity under normal conditions, so that a uniform system is not easy to form, and the actual application on site is influenced.
The high-temperature mixing device provided by the invention can realize high-temperature mixing and emulsification under program control, and is particularly applicable to mixing and emulsification of an oil displacement agent, an oil displacement agent and crude oil. The heating unit of the high-temperature mixing device enables the mixing unit to be in a constant temperature state, and the liquid to be mixed is preheated and kept warm. The mixing component of the mixing unit can respectively realize the multistage mixing and emulsification of the oil displacement agent according to the requirement of the mixing degree. The method is convenient to use, and the underground condition simulation can be realized under the high-temperature condition, so that the mixed emulsification evaluation of the oil displacement agent and the like under the high-temperature condition is completed.
The invention provides a high-temperature mixing device, which is mainly used for mixing or emulsifying heterogeneous substances, such as incompatible liquid or liquid-solid mixture, under the high-temperature condition, thereby forming a mixed solution which can be stable within a certain time and avoiding the phenomena of layering, sedimentation and the like. The high-temperature mixing device comprises a mixing unit, a heating unit, a detection unit and a control unit.
In the invention, heterogeneous materials enter a mixing unit of the high-temperature mixing device through the liquid inlet. Preferably, the heterogeneous components are premixed by stirring and sonication before entering the mixing unit, and the resulting premix is then introduced into the mixing unit. Heterogeneous materials and premixes are all to be mixed.
The mixing unit comprises a mixing part AT, a rotating shaft B, a first motor C1, a second motor C2 and a third motor C3. The rotating shaft B is connected with the mixing part AT, one end of the rotating shaft B is connected with the first motor C1 and the second motor C2, and the other end of the rotating shaft B is connected with the third motor C3. The first motor C1 works to enable the rotating shaft B to drive the mixing part AT to rotate, and the second motor C2 and the third motor C3 work simultaneously to enable the rotating shaft B to drive the mixing part AT to vibrate horizontally or vertically. If the first motor C1, the second motor C2 and the third motor C3 work simultaneously, the rotating shaft can drive the mixing component AT to rotate or vibrate. Preferably, the rotating shaft B is provided with two sections, which are respectively connected with the central positions of two opposite side surfaces of the mixing part AT, so as to drive the mixing part AT to rotate or vibrate, and the rotating shaft B is preferably detachably connected with the mixing part AT.
The first motor C1 enables the rotating shaft B to drive the mixing part AT to rotate AT a rotating speed of 0.1-25 rpm, preferably 5-20 rpm; the second motor C2 and the third motor C3 make the rotating shaft B drive the mixing part AT to vibrate for 0.1-120 times/min, preferably 10-100 times/min, and the amplitude is 0.05-6 cm, preferably 0.1-2 cm. The rotation or vibration of the mixing part AT can prevent the oil displacement agent solution from generating precipitation and delamination, or make the oil displacement agent and the oil fully mixed.
The mixing part AT is arranged in a constant temperature box body L, and a heating part I is arranged in the constant temperature box body L, so that the mixing part AT is under the heat preservation condition. The heating parts I are uniformly distributed on the inner wall of the heat preservation box body L and are electrically heated or infrared heated. The temperature in the constant temperature box body L is 20-250 ℃, and the temperature in the constant temperature box body L can be fed back through the temperature measuring part.
Preferably, the heterogeneous material or the premix enters the feed inlet of the mixing component AT through a feed line, and the feed line is spirally coiled on one side of the feed inlet, so as to prolong the stroke of the heterogeneous material or the premix before entering the mixing component AT. The feeding pipeline is arranged in the constant temperature box body L, so that heterogeneous materials or premix in the pipeline are fully preheated.
In a preferred embodiment of the invention, a mixing tank Y is arranged in front of the feed opening of the mixing element AT. An inlet is arranged on the side surface or the top of the mixed flow tank Y, and a plurality of laminate plates Y1 are arranged in the mixed flow tank Y. The laminated plate Y1 is provided with a material leakage port Y2, the material leakage ports Y2 on two adjacent laminated plates Y1 are arranged in opposite directions, the material leakage port Y2 of the laminated plate Y1 adjacent to the inlet is opposite to the inlet, and the material leakage port Y2 of the laminated plate Y1 adjacent to the outlet is opposite to the outlet. After the heterogeneous material or the premix enters the mixing tank Y, baffling is formed in the tank to mix, as shown in FIG. 2. Preferably, the leakage opening Y2 is circular.
The feed inlet of the mixed flow tank Y is connected with a feed pipeline, and the outlet of the mixed flow tank Y is connected with the feed inlet of the mixing part AT through a pipeline. The mixed flow tank Y is arranged inside the constant temperature box body L.
The layer plate Y1 is arranged transversely or vertically. When the laminated plate Y1 is transversely arranged, the included angle between the laminated plate Y1 and the horizontal plane is 0-30 degrees, preferably 5-10 degrees, and the laminated plate Y1 is horizontally or transversely obliquely arranged; when the laminated board Y1 is longitudinally arranged, the included angle between the laminated board Y1 and the vertical plane is 0-30 degrees, preferably 5-10 degrees, and the laminated board Y1 is vertically or longitudinally obliquely arranged. When the laminate Y1 is obliquely arranged, the space of the laminate Y1 in the direction of the next layer of the material leakage opening Y2 or the material outlet is gradually reduced, as shown in figure 3. Preferably, the spacing of the laminae Y1 is tapered to create a force to squeeze the material within to increase the mixing effect.
The mixing section AT comprises a piston mixer a. The inner part of the pot-shaped piston mixer A is a cavity and is provided with a piston, a cavity A1 at one side of the piston is filled with pressure bearing liquid, and a cavity A2 at the other side of the piston is filled with a mixture to be mixed. The cavity at one side filled with the pressure-bearing liquid is connected with a liquid pump G through a pipeline I J1, and the cavity at one side filled with the mixture to be mixed is provided with an outlet which is connected with a pipeline II J2 and communicated with a visible component D, as shown in figure 1. The first line J1 and the second line J2 are disposed in the incubator body L. The second cavity A2 is also provided with an inlet connected with a feed line.
In one embodiment of the invention, after mixing by piston mixer a, internal pressure is applied to press the mixture back into mixing tank Y through the pipeline and then into piston mixer a for circular mixing.
During operation, the liquid pump G can be started to inject pressure-bearing liquid into the piston mixer A, the piston is pushed to move towards the side of the cavity II A2, and therefore mixed heterogeneous materials or premix can be extruded into the visual component D. If the liquid state in the visual component D meets the requirement of the oil displacement agent through observation and analysis, discharging the oil displacement agent through an outlet pipeline H; if the requirements are not met, the liquid is pressed back into the piston mixer A by external pressure action or is reintroduced into the cavity II A2 through a pipeline, and after adjusting the parameters, mixing is carried out again.
Preferably, the first line J1 is helically arranged between the liquid pump G and the piston mixer a, and the second line J2 is helically arranged between the visual element D and the piston mixer a. On one hand, the first pipeline J1 and the second pipeline J2 are distributed in a spiral shape, and the first pipeline J1 and the second pipeline J2 can be prolonged, so that the pressure-bearing liquid and the oil displacement agent entering the piston mixer A are preheated or kept warm in the pipelines. On the other hand, the helical distribution of the line one J1 and the line two J2 loosely wound on both sides of the piston mixer a ensures the normal rotation and vibration of the piston mixer a.
The mixing unit also comprises an ultrasonic oscillation component O and/or a magnetic stirring component Q, and magnetons are arranged in a cavity II A2 at one side of the piston mixer A, which is filled with the mixture to be mixed, so as to stir the mixture to be mixed. Preferably, when the ultrasonic oscillation component O or the magnetic stirring component Q is operated, the cavity two a2 at the side where the materials to be mixed are arranged is rotated to the side of the ultrasonic oscillation component O or the magnetic stirring component Q, so that the cavity two a2 is positioned in the operating area of the ultrasonic oscillation component O or the magnetic stirring component Q.
Preferably, the ultrasonic oscillation part O and the magnetic stirring part Q are integrated into an ultrasonic stirring tank, a magnet is disposed at the bottom of the ultrasonic stirring tank for generating magnetic stirring, and an ultrasonic generating device is disposed at the bottom or side wall of the ultrasonic stirring tank.
The mixing unit AT further comprises an emulsification tank X. The lower end of an inlet of the emulsification tank X is provided with an eddy plate X1, the eddy plate X1 is a vortex blade which is far away from the far end of a central shaft of the emulsification tank X and fixed on the inner wall of the upper end of the emulsification tank X, the included angle between the longitudinal shaft of the blade surface of the vortex blade and the horizontal plane is 45-60 degrees, the included angle between the transverse shaft of the blade surface of the vortex blade and the horizontal plane is 5-15 degrees, and the vortex blade is narrowed towards the central shaft of the emulsification tank X in an inclined downward manner as shown in figure 4. Preferably, 3-5 swirl plates X1 are provided. The direction of a longitudinal axis of the blade surface of the vortex blade is the direction from the connecting position of the vortex blade and the inner wall of the emulsification tank X to the edge of the farthest front end of the blade surface of the vortex blade; the transverse axial direction of the blade surface of the vortex blade is vertical to the longitudinal axial direction of the blade surface of the vortex blade.
2-5 first-stage elastic sheets X2 are arranged in the emulsification tank X, the first-stage elastic sheets X2 are triangular, one side of the first-stage elastic sheets X2 triangle is fixed on the inner side wall of the emulsification tank X, preferably, the first-stage elastic sheets X2 are isosceles triangles, the bottom side of the first-stage elastic sheets X2 is fixed on the inner side wall of the emulsification tank, and the bottom side of the first-stage elastic sheets X2 is the bottom side of the isosceles triangle. The included angle between the blade surface of the first-stage elastic sheet X2 and the horizontal plane is 40-50 degrees, such as 45 degrees, and the blade surface is inclined towards the direction of the vortex plate X1. The primary shrapnel X2 is arranged below the swirl vanes in the heterogeneous material or premix flow direction.
When heterogeneous material or premix enters the emulsification tank X from the inlet, the heterogeneous material or premix flows through the vortex plate X1 and is guided by the vortex plate X1 and is cut and extruded, the liquid flow rate is accelerated, liquid flow is generated, after the heterogeneous material or premix flows through the vortex plate X1, the internal volume of the emulsification tank X is increased, the outer ring liquid flow forms a vortex, the central part of the liquid flow still impacts the first-stage elastic sheet X2 at a high axial speed, the first-stage elastic sheet X2 generates high-frequency resonance similar to ultrasonic waves, and the heterogeneous material or premix is dispersed, emulsified and mixed. Meanwhile, the follow-up liquid continuously pushes the liquid in front to flow, and the liquid flow acted by the first-stage elastic sheet X2 can only pass through the cavity between the first-stage elastic sheets X2, is sheared by the first-stage elastic sheet X2 and flows out, and is mixed again, so that the mixing effect is further improved.
In a preferred embodiment of the present invention, the heterogeneous material or premix is introduced into the cyclone X4 through the guide tube X3 after passing through the first elastic sheet X2. The guide cylinder X3 is a cone-shaped guide cylinder X3 which is gradually folded from top to bottom towards the middle, can fold and extrude heterogeneous materials or premixes flowing through the first-stage elastic sheet X2 to increase the flow rate of the heterogeneous materials or the premixes, and can guide the heterogeneous materials or the premixes to enter the rotary cylinder X4.
The side surface of the rotary cylinder X4 is provided with a sieve hole X401, an emulsifying plate X5 is arranged below the rotary cylinder X4, the mixed liquid coming out of the rotary cylinder X4 impacts the emulsifying plate X5 to carry out re-emulsification, and the mixed liquid blocked by the emulsifying plate X5 flows to the periphery of the rotary cylinder X4 under the push of the subsequent mixed liquid and upwards reaches the sieve hole on the side surface of the rotary cylinder X4 to enter the rotary cylinder X4 again. Under the effect of cylinder X4 that circles round, the mixed liquid form the fluid of circulation to produce the impact mixing between the fluid, prevent that mixed liquid from stopping in emulsion board X5 top, make the mixed liquid after the emulsification take place the inverse change, reduce the emulsification effect, in addition, avoid sheltering from the impact of follow-up mixed liquid, synthesize improvement mixing effect. Meanwhile, the mixed liquid which flows back to the rotary cylinder X4 again impacts the emulsifying plate X5 again under the drive of the subsequent mixed liquid to carry out subsequent emulsification.
The emulsifying plate X5 is provided with a plurality of conical openings X501, two opposite second-stage elastic sheets X502 are arranged at the outlets of the conical openings X501, and the outer ends of the second-stage elastic sheets X502 are fixed by a fixing support, as shown in FIG. 4. The fluid extruded by the conical opening X501 impacts the second-stage elastic sheet X502, the second-stage elastic sheet X502 resonates to generate an ultrasonic-like effect, the mixed liquid is mixed and emulsified again, and the mixing effect is improved.
The side of the emulsification tank X is detachably connected with the rotating shafts B AT the two ends, and when the mixing component AT is the emulsification tank X, the emulsification tank X does not rotate and optionally vibrates.
When the mixing component AT is only the emulsifying tank X, the inlet of the emulsifying tank X is connected with the feeding pipeline, and the outlet of the emulsifying tank X is connected with the visible component D through the pipeline II J2.
When the mixing part AT is used by combining the piston mixer A and the emulsifying tank X, the inlet of the piston mixer A is connected with the feeding pipeline, the inlet of the emulsifying tank X is connected with the outlet of the piston mixer A through a pipeline, and the outlet of the emulsifying tank X is communicated to the visible part D through a pipeline II J2. At this time, the rotary shaft B is detachably connected only to the piston mixer a.
The mixing component AT also includes an array tube mixer T. The array tube mixer T comprises a plurality of support connecting rods T1, a support top plate T3, a support base T4, an array tube T5 and a blocking cover T6, as shown in fig. 5.
The lower surface of support roof T3 and the upper surface of support base T4 set up a plurality of holding groove respectively for the bottom of holding shutoff lid T6 top and array pipe T5, be convenient for array pipe T5's fixed. Preferably, the inner shape of the receiving groove on the lower surface of the bracket top plate T3 is the same as the outer shape of the blocking cover T6, and the receiving groove on the upper surface of the bracket base T4 is a circular groove.
The upper end of the bracket connecting rod T1 passes through the bracket top plate T3, the lower end of the bracket connecting rod T4 passes through the bracket base T20 and is fixed by a fastener T20; the array tube T5 is clamped and fixed through the support top plate T3 and the support base T4. The fastener T20 is selected from a nut or a wedge pin, preferably a nut.
When the array tubes T5 of the array tube mixer T are single row, it is preferable to provide two support connection rods T1, and the rotation axes B are connected to the middle positions of the two support connection rods T1, respectively.
When the array tubes T5 of the array tube mixer T are in two or more rows, two opposite side plates are arranged on two sides of the array tube mixer T, and the rotating shafts B are respectively connected with the middle positions of the side plates.
When the array tube mixer T is used, the mixture to be mixed is directly poured into the array tube T5, and after the mixing is finished, the treated mixture is directly poured out.
The heating unit comprises a constant temperature box body L, a heating part I and a temperature measuring part. The mixing unit AT, the feed line of the mixing unit AT, the first line J1, the second line J2, the ultrasonic oscillation unit O, and the magnetic stirring unit Q are disposed inside a thermostat housing L of the heating unit, and the rotation axis B horizontally crosses the thermostat housing L, as shown in fig. 1. The heating parts I are uniformly distributed on the inner wall of the heat preservation box body L and are electrically heated or infrared heated. The temperature in the constant temperature box body L is 20-250 ℃, and the temperature in the constant temperature box body L can be fed back through the temperature measuring part.
Thereby the detecting element passes through the state that the oil displacement agent was in the visual part D of camera shooting and judges whether the oil displacement agent who obtains meets the requirements. The detection unit comprises a visual component D, a camera E, a light source F and a light-tight box body M. Visual part D, camera E and light source F set up inside light-tight box M, and visual part D is linked together with pipeline two J2 and pipeline H respectively, and light source F and camera E set up the both sides at visual part D, and camera E and light source F are connected with computer S electricity. Preferably, the motor C1, the motor C2 and the liquid pump G are disposed in the tank N.
The control unit comprises a control panel K and a computer S which are connected, and the work of the whole high-temperature mixing device is controlled by a computer S program. The motor I C1, the motor II C2, the motor III C3, the ultrasonic oscillation device O, the magnetic stirring device Q, the incubator L and the heating device I are respectively and electrically connected with the computer S.
At present, more than half of crude oil in various oil fields in the later stage of water flooding in China still remains underground, and a relatively effective tertiary oil recovery technology needs to be developed. The polymer oil displacement agent, the ternary composite oil displacement agent and the surfactant oil displacement agent are mainly applied to tertiary oil recovery, and the middle-phase microemulsion oil displacement agent used in the middle-phase microemulsion oil displacement technology is also one of the main oil displacement agents.
Since the 90 s of the 20 th century, the polymer flooding is industrially popularized and applied, the recovery ratio can be improved by 6-33% through the test effect of each oil field, but about 50% of crude oil remains underground after the polymer flooding, and the recovery ratio of the oil field needs to be further improved.
Because the oil reservoir conditions are more complex after the polymer flooding, the reservoir heterogeneity is enhanced, the contradiction between the plane and the interlayer is prominent, the distribution of the residual oil is more scattered, the swept volume needs to be further enlarged, and the oil washing efficiency needs to be improved, and the application effect of the current mature polymer flooding, binary composite flooding and other methods is limited.
Aiming at the geological characteristics of the polymer flooding oil reservoir and the heterogeneous oil reservoir, the structural optimization of the novel heterogeneous oil displacement agent is provided. The heterogeneous compound oil displacement system can purposefully solve the problem of further improving the recovery ratio of a high-temperature high-salt and heterogeneous severe oil reservoir, and the oil displacement effect of the oil displacement system is further improved while the application range of the existing oil displacement system is expanded. The heterogeneous oil displacement agent comprises a viscoelastic particle oil displacement agent, a polymer and a surfactant, cannot be completely dissolved in water, and is a heterogeneous system.
The excellent surfactant oil displacement agent is usually a compound of various surfactants with different physical and chemical properties, and the selected surfactant has large difference between hydrophilicity and hydrophobicity and viscosity under normal conditions, so that a uniform system is not easy to form, and the actual application on site is influenced.
The middle-phase microemulsion oil displacement technology is one of the most potential technologies in the tertiary oil recovery technology, but at present, efficient simulation equipment is lacked in a laboratory or an industrial test, the existing equipment is difficult to simulate the high-temperature condition under the stratum, the mixing efficiency of a surfactant and crude oil is low, a good surfactant is difficult to efficiently screen, the verification efficiency of the potential good surfactant is also low, and the performance of the oil displacement agent is difficult to rapidly and objectively evaluate.
In the process of using and testing the oil displacement agent and the like, the emulsifying property of the oil displacement agent under high temperature conditions needs to be evaluated, particularly for the composite oil displacement agent. Therefore, the invention also provides the application of the high-temperature mixing device, which is used for mixing an oil displacement agent or an oil displacement agent and crude oil, wherein the oil displacement agent is selected from one of a polymer oil displacement agent, a ternary composite oil displacement agent, a surfactant oil displacement agent, a middle-phase microemulsion and a heterogeneous composite oil displacement agent.
The invention also provides a method for mixing the oil-displacing agent or the oil-displacing agent and the crude oil at high temperature, which is carried out by utilizing the high-temperature mixing device and specifically comprises the following steps:
step 1, introducing a mixture to be mixed into a mixing unit.
The mixture to be mixed is oil displacement agent to be mixed or mixed liquid of the oil displacement agent and crude oil. The oil displacement agent is selected from one of a polymer oil displacement agent, a ternary composite oil displacement agent, a surfactant oil displacement agent, a middle-phase microemulsion and a heterogeneous composite oil displacement agent.
Preferably, the materials to be mixed are premixed by stirring and ultrasonic treatment, and the formed premix is introduced into the mixing unit.
The mixture to be mixed or the premix is directly introduced into the mixing part AT, or is introduced into the mixing tank Y firstly and then is introduced into the mixing part AT.
When the mixture to be mixed is a mixed solution of an oil displacement agent and crude oil, directly introducing the mixture to be mixed into the array tube mixer T; when the mixture to be mixed is the oil displacement agent, the mixture to be mixed is firstly introduced into the mixed flow tank Y and then introduced into the mixing component AT, or is directly introduced into the mixing component AT. The mixing part AT is a piston mixer A and/or an emulsification tank X, and preferably, when the mixture to be mixed is introduced into the mixing part AT, the mixture is introduced into the piston mixer A firstly and then is introduced into the emulsification tank X.
In a preferred embodiment of the invention, the heating unit is started before the introduction of the mix to be mixed, so that the thermostat housing L is kept at a preheating temperature of 30 to 95 c, preferably 40 to 80 c. And the mixture to be mixed enters the mixing part AT through a feeding pipeline of the spiral disk cloth so as to realize primary preheating. Preferably, the heating unit adopts programmed heating to make the temperature in the incubator body L reach the use requirement.
And 2, starting a device for mixing to obtain a treated mixture.
After the mixture to be mixed is introduced into the mixing unit, the temperature is raised to the target temperature through a control panel K or a computer S control program, and the device is started to mix. The target temperature is no higher than 245 ℃.
When only adopting piston blender A to mix the oil-displacing agent, or when adopting array pipe blender T to mix oil-displacing agent and crude oil, preferably rotate or vibrate, adopt ultrasonic oscillation part O and/or magnetic stirring part Q to carry out the auxiliary mixing, reinforcing mixing effect.
In a preferred embodiment of the invention, when the mixture to be mixed is an oil displacement agent, the mixing part AT is controlled to perform continuous feeding mixing or quantitative circulating mixing.
And 3, analyzing the state of the processed mixture, and discharging the mixture after the mixture meets the mixing requirement.
When the mixture to be mixed is the mixed liquid of the oil displacement agent and the crude oil, the mixture to be mixed is directly mixed in the array tube mixer T by observing the mixing state of the oil displacement agent and the crude oil in the transparent array tube mixer T, if the mixing requirement is met, the treated mixture is poured out, and if the mixing requirement is not met, instrument parameters such as temperature, mixing time and the like can be adjusted, and the mixture is mixed again.
When the mixture to be mixed is an oil displacement agent, the processed liquid enters the visual component D through the pipeline II J2, the control equipment starts the light source F, the state of the processed liquid in the visual component D is shot through the camera E, and the electronic photo is transmitted to the computer S for analysis. If the mixing state meets the requirement, discharging the mixture out of the device through a pipeline H; if the mixing requirement is not met, the mixture is conveyed to the feed inlet of the mixing part AT through a pipeline, and parameters such as temperature, power of the ultrasonic oscillation part O, stirring speed, feed speed and the like are adjusted to carry out mixing again. And discharging after the mixture meets the mixing requirement.
The high-temperature mixing device provided by the invention can be applied to high-temperature mixing emulsification of a polymer oil-displacing agent, a ternary composite oil-displacing agent, a heterogeneous composite oil-displacing agent and crude oil, so that the evaluation of the performance of the oil-displacing agent is realized. The self-emulsifying property of the oil displacement agent and the emulsifying property between the oil displacement agent and crude oil can be evaluated under the condition close to the underground condition, so that the property of the oil displacement agent is adjusted to meet the requirement of practical application.
Examples
Example 1
The surfactant oil displacement agent is prepared by compounding and mixing the following 3 types of surfactants, wherein the surfactants are Sodium Dodecyl Benzene Sulfonate (SDBS), hexadecyl sulfobetaine (HDAPS) and fatty alcohol polyoxyethylene ether (AEO-7) in a mass ratio of 3:2: 5.
In this example, the mixture to be mixed was the above-mentioned 3 surfactants. Before the mixture is added into the high-temperature mixing device, the heating unit is started to preheat to 45 ℃, and the mixture is slowly introduced into the mixed flow tank Y through the feeding pipeline to be mixed and then is introduced into the piston mixer A in the mixing unit.
The temperature of the constant temperature box body L is raised to 75 ℃, the heating unit adopts the programmed temperature raising, and the temperature raising rate is 2 ℃/min. And ultrasonic oscillation is adopted for auxiliary mixing, so that the mixing effect is enhanced. Wherein the vibration frequency of the piston mixer A is 100 times/min, and the amplitude is 1 cm. The ultrasonic frequency is 30 KHz. The mixing time was 40 min.
Starting a device for mixing, wherein the mixing mode is quantitative circulating mixing, and the mixture to be mixed is firstly mixed by 0.05m3Flow rate of/h into the mixerAnd (3) preliminarily mixing the fluid tank Y, pumping into a piston mixer A, rotationally mixing at the speed of 10 revolutions per minute, assisting with vertical vibration, mixing for 15min, stopping, performing ultrasonic vibration for 10min, finally rotationally vibrating and mixing at the speed of 10 revolutions per minute for 15min, stopping rotating, returning to the fluid tank Y through a pipeline, circulating in such a way, repeating the rotation and the ultrasonic vibration, discharging to a visible component D after mixing is finished, meeting the mixing requirement, and discharging to obtain the oil displacement agent I.
Wherein the volume of the two plate layers of the Y-shaped mixed flow tank is 0.5m3The laminated plate Y1 is horizontally arranged, and the diameters of a feeding port of the mixed flow tank Y, a laminated plate discharge port Y2 and a discharge port are equal.
And (3) carrying out traditional mechanical stirring and mixing on the mixture to be mixed: stirring the mixture in a closed stirring tank, wherein the stirring paddle is a three-blade stirring paddle, and the stirring speed is 600 revolutions per minute. And (3) keeping the temperature of the mixed materials in the tank to be about 75 ℃ through a heating jacket, and stirring for 2 hours to obtain a comparative oil displacement agent A.
And then carrying out physical and chemical parameter testing and oil displacement experiments of the oil displacement agent. The oil displacement experimental conditions are as follows: and simulating an oil displacement process through an indoor core displacement experiment. Crude oil was taken from produced oil in the geology of a block in Daqing and the test temperature was set at 75 deg.C (to simulate the formation temperature in the block). The injection speed of the crude oil, the water and the oil displacement agent is 0.15mL/min, and the concentration of the oil displacement agent is 0.20%.
Daqing crude oil was injected into the core and allowed to fully contact and break-in with the core (break-in phase duration was 20 hours). And after the crude oil and the rock core are fully contacted, pumping water into the rock core for water drive until the water content of the outlet material reaches 98%, and recording the water drive recovery ratio. And then, injecting the oil displacement agent I or comparing the oil displacement agent A to carry out surface displacement until the water content of an outlet is 98%, stopping the surface displacement and recording the surface displacement recovery ratio.
The results of the physical and chemical properties of the oil displacement agent i and the comparative oil displacement agent a and the oil displacement efficiency thereof on crude oil are shown in table 1.
TABLE 1 physicochemical properties and oil recovery ratio of oil-displacing agent I and comparative oil-displacing agent A
As can be seen from Table 1, when conventional mechanical stirring was carried out for 2 hours, the comparative oil-displacing agent A still did not form a completely homogeneous system, and a small portion of component AEO-7 was not dissolved. The interfacial tension of comparative oil-displacing agent A was 9.85X 10-3mN·m-1And after water flooding, performing surface flooding by using the comparative oil displacement agent A, wherein the crude oil recovery rate is increased by 39.97%.
The oil displacement agent I system is relatively uniform, and lower interfacial tension is obtained, and the interfacial tension is as low as 1.76 multiplied by 10- 3mN·m-1To achieve 10-3And the magnitude order realizes the ultra-low interfacial tension. And, compared with water flooding, the recovery ratio is increased by 47.92%. Compared with the comparative oil displacement agent A, the crude oil recovery rate is improved by 7.95 percent.
Therefore, the HLB value (the hydrophilic-lipophilic balance value of the surfactant) and the viscosity of the 3 surfactants are different greatly, the mixing and dissolving speed of the three is slow, the time for forming a uniform system is long, and the comparative oil displacement agent A obtained by mixing the three by the traditional method has poor mixing effect and influences the actual field application efficiency.
By utilizing the high-temperature mixing device, the oil displacement agent I prepared by mixing is more uniform, has a very good oil displacement effect, has ultralow oil-water interfacial tension and can obviously improve the recovery ratio of crude oil.
Example 2
The mixed material is the components of the ternary composite oil displacement agent: the weak base is sodium carbonate, the mass fraction of the weak base in the ternary composite oil displacement agent is 0.8%, the mass fraction of the dry powder polyacrylamide HPAM is 0.15%, the surfactant is Sodium Dodecyl Benzene Sulfonate (SDBS), the mass fraction is 0.1%, and the balance is water from Daqing oilfield field production (the production water is underground water after filtration of silt).
Mixing at room temperature to give a mixture of 0.03m3And introducing the flow velocity of/h into the mixed flow tank Y for premixing treatment, then pressing the mixed flow velocity into the piston mixer A, and performing auxiliary mixing by adopting ultrasonic oscillation to enhance the mixing effect. Piston mixer a at a speed of 6 revolutions per minute,and (3) assisting with vertical vibration, mixing for 15min, and then performing ultrasonic mixing for 15 min. Wherein the vibration frequency of the piston mixer A is 20 times/min, and the amplitude is 1.5 cm. The ultrasonic frequency control range is 40 KHz. Then returning to the mixed flow tank, and circulating for three times. Ultrasonic mixing treatment was continued for 2.5 hours. And recording the total treatment time as 4 hours, and discharging the material after the treatment is finished to obtain an oil displacement agent II.
The traditional mechanical stirring mode is as follows: and adding the components of the ternary composite oil-displacing agent into a stirring tank, stirring, wherein the stirring speed is 300 revolutions per minute, stirring for 2 hours, standing and curing the polymer composite solution for 24 hours to obtain a comparative oil-displacing agent B.
And carrying out a core displacement experiment by using the oil displacement agent II and the comparison oil displacement agent B. Oil displacement experimental conditions are as follows: crude oil was obtained from produced oil from a geological site in Daqing, and the test temperature was set at 45 ℃ (to simulate the formation temperature in the site). The core was water saturated after evacuation and daqing crude oil was injected into the core at a flow rate of 0.1mL/min using a pump and allowed to fully contact and break-in with the core (duration of break-in phase was 24 hours). Then water flooding is carried out at the flow rate of 0.1mL/min until the water content at the outlet reaches 98%, the PV number (PV is the effective pore volume) of continuous injection is recorded, and the recovery ratio of water flooding is calculated. And then, injecting an oil displacement agent II or a comparison oil displacement agent B for compound flooding, wherein the injection flow rate of the oil displacement agent is 0.1mL/min, and the size of each slug is as follows: a pre-polymer slug 0.1PV, an tri-driver slug 0.5PV, and a post-polymer slug 0.2 PV. And continuing water flooding until the water content of the outlet is 98%, and calculating the recovery ratio of the three-component compound flooding.
The displacement effects of displacement agent ii and comparative displacement agent B are shown in table 2. As can be seen from table 2, the displacement recovery for comparative displacement agent B is 22.37% higher than for water displacement. And the oil displacement recovery ratio of the oil displacement agent II is improved by 25.11 percent compared with that of water displacement, and the mixing time is shortened by 22 hours.
Therefore, the ternary composite oil displacement agent with better oil displacement effect can be obtained in a short time by adopting the high-temperature mixing device, the oil displacement recovery rate is improved by 2.74%, and the mixing time is shortened by 84.61%.
TABLE 2 oil displacement recovery ratio of oil displacement agent II and comparative oil displacement agent B
Example 3
The mixture is oil phase and water phase. Wherein the oil phase is a mixture of dehydrated crude oil and kerosene which are collected from Dongying oil fields and are uniformly mixed according to a ratio of 3: 1. The water phase comprises a surfactant, alkali and water for field production of the Dongying oilfield (the water for the field production is underground water obtained after silt filtration), the selected surfactant is nonylphenol polyoxyethylene ether NP-50 and dioctyl sodium sulfosuccinate (AOT), the mass ratio of the nonylphenol polyoxyethylene ether NP-50 to the dioctyl sodium sulfosuccinate is 7:13, and the mass fraction of the surfactant in the water phase is 0.3%; the alkali is sodium carbonate, the mass fraction of the sodium carbonate is 0.5 percent, and the balance is water for field production in Dongying oil fields (the water for production is underground water after silt filtration). The volume ratio of the oil phase to the water phase is 1:1, and the total volume of the oil phase and the water phase is 50 mL.
The mixture to be mixed was directly fed into the array tube T5, and then the array tube T5 was installed in the high-temperature mixing device, and the heating unit of the high-temperature mixing device was started to maintain the incubator L at 90 ℃ at a rate of 3 ℃/min.
The rotation and oscillation modes of the device are started, the rotation speed is 2 revolutions per minute, the oscillation frequency is 100 times per minute, the amplitude is 10mm, and the oscillation pause time is 20S. Mixing at 90 deg.C for 2 hr, discharging, placing in transparent glass test tube with scales, sealing, placing in 90 deg.C incubator, standing for 10 hr, observing phase state, and recording oil phase volume VoVolume of aqueous phase VwVolume of mesophase VmAnd obtaining a treated mixture I. The volume of the middle phase is the volume of the homogeneous mixed phase.
At room temperature, mixing by hand: placing the mixture in a transparent glass test tube with scales according to a certain proportion, sealing, manually rotating and shaking, mixing for 2 hr, placing in a thermostat at 90 deg.C, standing for 10 hr, observing phase state, and respectively recording oil phase volume DVoAqueous phase volume DVwAnd mesophase volume DVmAnd obtaining a comparative mixture C.
The results are shown in Table 3. As can be seen from the table, the volume of the middle phase of treatment mix I was 13mL, while the volume of the middle phase of comparative mix C was only 1.0 mL. Therefore, the high-efficiency emulsification of the oil displacement agent and the crude oil is realized through modes of oscillation, rotation, temperature control and the like, and the emulsification performance of the surfactant can be better exerted by utilizing the high-temperature mixing device under the condition of the same amount of the surfactant.
TABLE 3 comparison of the volume of each phase of mixture C and treated mixture I after standing
| Mixture material | Volume of oil phase Vo/mL | Volume of aqueous phase Vw/mL | Volume of middle phase Vm/mL |
| Comparative mixture C | 24.5 | 24.5 | 1.0 |
| Treated mix I | 18.6 | 18.4 | 13.0 |
The invention has been described in detail with reference to specific embodiments and/or illustrative examples and the accompanying drawings, which, however, should not be construed as limiting the invention. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its embodiments without departing from the spirit and scope of the present invention, which fall within the scope of the present invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A high-temperature mixing device is characterized by comprising a mixing unit, a heating unit, a detection unit and a control unit;
the mixing unit comprises a mixing part (AT), a rotating shaft (B), a first motor (C1), a second motor (C2) and a third motor (C3);
the rotating shaft (B) is connected with the mixing part (AT), one end of the rotating shaft (B) is connected with the motor I (C1) and the motor II (C2), and the other end of the rotating shaft (B) is connected with the motor III (C3);
the motor I (C1) works to enable the rotating shaft B to drive the mixing part (AT) to rotate, and the motor II (C2) and the motor III (C3) work simultaneously to enable the rotating shaft B to drive the mixing part (AT) to vibrate horizontally or vertically;
the rotating shaft (B) is divided into two sections and is respectively connected with the central positions of two opposite side surfaces of the mixing part (AT);
the mixing component (AT) is arranged in a constant temperature box body (L), and a heating component (I) is arranged in the constant temperature box body (L) so as to keep the mixing component (AT) under the heat preservation condition;
the mixing component (AT) comprises a piston mixer (A), a cavity is formed in the piston mixer (A), a piston is arranged in the piston mixer (A), a first cavity (A1) on one side of the piston is filled with pressure-bearing liquid, and a second cavity (A2) on the other side of the piston is filled with a mixture to be mixed;
the cavity at one side filled with the pressure-bearing liquid is connected with a liquid pump (G) through a first pipeline (J1), and the first pipeline (J1) and a second pipeline (J2) are arranged in the constant temperature box body (L); the feeding pipeline is spirally coiled on one side of the feeding hole and is arranged in the constant temperature box body (L);
the first pipeline (J1) is spirally distributed between the liquid pump (G) and the piston mixer (A), and the second pipeline (J2) is spirally distributed;
a mixed flow tank (Y) is arranged in front of a feed inlet of the mixing component (AT), an inlet is arranged on the side surface or the top of the mixed flow tank (Y), and a plurality of laminate plates (Y1) are arranged in the mixed flow tank (Y);
the laminated plate (Y1) is provided with a material leakage port (Y2), the material leakage ports (Y2) on two adjacent laminated plates (Y1) are arranged in opposite directions, the material leakage port (Y2) of the laminated plate (Y1) adjacent to the inlet is opposite to the inlet, and the material leakage port (Y2) of the laminated plate (Y1) adjacent to the outlet is opposite to the outlet;
a feed inlet of the mixed flow tank (Y) is connected with a feed pipeline, an outlet of the mixed flow tank (Y) is connected with a feed inlet of the mixing part (AT) through a pipeline, and the mixed flow tank (Y) is arranged in the constant temperature box body (L);
the laminated plate (Y1) is transversely arranged or vertically arranged, when the laminated plate is transversely arranged, the included angle between the laminated plate (Y1) and the horizontal plane is 5-10 degrees, so that the laminated plate is transversely inclined, when the laminated plate is longitudinally arranged, the included angle between the laminated plate (Y1) and the vertical plane is 5-10 degrees, so that the laminated plate is longitudinally inclined, and the inclined direction of the laminated plate (Y1) gradually reduces the space in the direction of the next layer of material leakage port (Y2) or material discharge port;
the mixing component (AT) further comprises an emulsifying tank (X), the lower end of an inlet of the emulsifying tank (X) is provided with a vortex plate (X1), and the vortex plate (X1) is a vortex blade which is far away from the far end of a central shaft of the emulsifying tank (X) and is fixed on the inner wall of the upper end of the emulsifying tank (X);
2-5 first-stage elastic sheets (X2) are arranged in the emulsification tank (X), one side of a triangle of the first-stage elastic sheets (X2) is fixed on the inner side wall of the emulsification tank (X), the first-stage elastic sheets (X2) are arranged below the vortex blades in the flow direction of heterogeneous materials or premixed materials;
after the mixture in the emulsifying tank (X) flows through the first-stage shrapnel (X2), the mixture is guided into the rotary cylinder (X4) through the guide cylinder (X3),
the side surface of the rotary cylinder (X4) is provided with a sieve hole (X401), an emulsifying plate (X5) is arranged below the rotary cylinder (X4), and the mixed liquid from the rotary cylinder (X4) impacts the emulsifying plate (X5) to carry out re-emulsification;
a plurality of conical openings (X501) are formed in the emulsifying plate (X5), two opposite second-stage elastic sheets (X502) are arranged at the outlet of each conical opening (X501), the outer ends of the second-stage elastic sheets (X502) are fixed by a fixing support, and fluid extruded through the conical openings (X501) impacts the second-stage elastic sheets (X502).
2. Mixing device according to claim 1, characterized in that the mixing element (AT) further comprises an array tube mixer (T) comprising several stand connecting rods (T1), a stand top plate (T3), a stand base (T4), an array tube (T5), a plugging cover (T6).
3. Mixing device according to claim 1, wherein the detection unit comprises a visual means (D), a camera (E), a light source (F) and a light-tight box (M).
4. A method for high-temperature mixing of an oil-displacing agent or an oil-displacing agent with crude oil, characterized in that the method is carried out with a high-temperature mixing device according to one of claims 1 to 3, comprising the following steps:
step 1, adding a mixture to be mixed into a mixing part (AT);
step 2, starting a device to heat and mix to obtain a treated mixture;
and 3, analyzing the state of the processed mixture, and discharging the mixture after the mixture meets the mixing requirement.
5. Use of a high-temperature mixing device according to one of claims 1 to 3, characterized in that it is used for the mixing of oil-displacing agents or oil-displacing agents and crude oil.
6. Use according to claim 5, characterized in that the oil-displacing agent is selected from polymeric oil-displacing agents.
7. Use according to claim 5, characterized in that the oil-displacing agent is selected from ternary complex oil-displacing agents.
8. Use according to claim 5, characterized in that the oil-displacing agent is selected from surfactant oil-displacing agents.
9. Use according to claim 5, characterized in that the oil-displacing agent is selected from the group consisting of medium-phase microemulsions.
10. Use according to claim 5, characterized in that the oil-displacing agent is selected from heterogeneous composite oil-displacing agents.
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