CN110374565B - Device capable of realizing partial pressure and mass injection simultaneously and experimental method thereof - Google Patents
Device capable of realizing partial pressure and mass injection simultaneously and experimental method thereof Download PDFInfo
- Publication number
- CN110374565B CN110374565B CN201910678438.8A CN201910678438A CN110374565B CN 110374565 B CN110374565 B CN 110374565B CN 201910678438 A CN201910678438 A CN 201910678438A CN 110374565 B CN110374565 B CN 110374565B
- Authority
- CN
- China
- Prior art keywords
- fan blades
- sleeve
- groups
- outer cylinder
- fan blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002347 injection Methods 0.000 title claims abstract description 35
- 239000007924 injection Substances 0.000 title claims abstract description 35
- 238000002474 experimental method Methods 0.000 title claims abstract description 15
- 229920000642 polymer Polymers 0.000 claims abstract description 56
- 239000000243 solution Substances 0.000 claims description 57
- 238000000034 method Methods 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 11
- 241000883990 Flabellum Species 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 239000011206 ternary composite Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Geophysics (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a device capable of simultaneously realizing partial pressure and separate mass injection and an experimental method thereof, wherein the device capable of simultaneously realizing partial pressure and separate mass injection comprises an outer cylinder, a sleeve, a plurality of groups of fan blades, a rotating shaft, a pressure sensor, a rotating speed display, a digital display viscometer and a DSP control module, wherein the outer cylinder, the sleeve and the rotating shaft are concentrically and coaxially arranged, the plurality of groups of fan blades are sequentially and equidistantly arranged on the rotating shaft through corresponding supporting brackets, each group of fan blades is formed by rotationally connecting three fan blades and a fan blade fixing sleeve, the three fan blades are uniformly distributed around the fan blade fixing sleeve, the fan blade fixing sleeve and two bracket fixing sleeves are all fixed on the rotating shaft in an embedded mode, each group of fan blades is connected with two supporting brackets, the fan blade fixing sleeve is positioned between the two bracket fixing sleeves, and one side of each fan blade is rotationally connected with one telescopic rod. The invention can real-time and uninterruptedly adjust the injection pressure and the range of the polymer molecular weight, and can simultaneously realize the functions of partial pressure and quality separation.
Description
The technical field is as follows:
the invention relates to an indoor experimental device used in a process of simulating layered injection of an oil field, in particular to a device capable of realizing partial pressure and mass injection simultaneously and an experimental method thereof.
Background art:
with the completion of the displacement of the main oil layer of the oil field in China at present, the displacement object gradually turns to the oil layers with low permeability and larger interlayer difference, and the injection pressure of the oil layers is generally higher in combination with the actual production condition. Because the polymer system or the ternary composite system has poor matching with certain oil layers, the injected solution basically flows to the oil layer with high permeability and good communication performance. The contradiction cannot be solved by depending on the original separate injection process, so in order to further improve the overall development effect of the ternary combination flooding and improve the interlayer contradiction, a ternary combination system single-tube multilayer quality-division and partial-pressure injection technology is provided. Namely, under the condition that a single-tube single pump is used for injecting a high-molecular-weight ternary composite system, a pressure regulator is used for a high-permeability layer, so that a ternary composite solution can be injected when the degradation rate is low; and (3) using a quality-dividing tool for the low-permeability layer, and reducing the molecular weight of the polymer in the ternary composite system by mechanical shearing, so that the ternary composite solution can be injected into the corresponding low-permeability layer, namely the single-tube multi-layer quality-dividing and partial-pressure injection process of the ternary composite system.
At present, regarding a displacement mode for simulating layered injection of an oil field, a device adopted in an indoor experiment is realized by a partial pressure device for changing different structural parameters and a molecular weight adjusting device for changing different parameters in the displacement process. The traditional indoor experimental layered injection device has limited range of pressure regulation and molecular weight, and has separated partial pressure and quality separation functions, so that the functions of partial pressure and quality separation cannot be realized simultaneously. In the experimental process, the pump is stopped, the pressure dividing devices with different structural parameters are changed, and the molecular weight adjusting devices with different parameters are changed, so that the purpose of dividing pressure and quality is achieved. Because the experiment container takes up an area of the space scope greatly, and device connecting circuit is loaded down with trivial details, and the experiment procedure is complicated, and the pump switching of stopping leads to container pressure to descend, and the pipeline needs the evacuation again when connecting new container, causes certain time waste, produces system error, and the experimental result accuracy descends by a wide margin, in a word, when carrying out indoor simulation layering injection experiment, lacks one kind and can realize polymer partial pressure and the device that divides the matter to pour into simultaneously under the prerequisite of not shutting down the pump.
The invention content is as follows:
the invention aims to provide a device capable of realizing partial pressure and separate injection simultaneously, which is used for solving the problems that the traditional indoor separate injection experiment needs to be completed by a partial pressure device and a separate injection device together, and the experiment process needs to stop a pump and switch the device, and also aims to provide an experiment method of the device capable of realizing partial pressure and separate injection simultaneously.
The technical scheme adopted by the invention for solving the technical problems is as follows: the device capable of simultaneously realizing partial pressure and partial mass injection comprises an outer cylinder, a sleeve, a plurality of groups of fan blades, a rotating shaft, a pressure sensor and a rotating speed display, the digital display viscometer and the DSP control module are arranged concentrically and coaxially, a plurality of groups of fan blades are sequentially and equidistantly arranged on the rotating shaft through corresponding supporting brackets, each group of fan blades is formed by rotationally connecting three fan blades and a fan blade fixing sleeve, the three fan blades are uniformly distributed around the fan blade fixing sleeve, each supporting bracket is formed by a bracket fixing sleeve and three telescopic rods rotationally connected with the bracket fixing sleeve, the fan blade fixing sleeve and two bracket fixing sleeves are all embedded and fixed on the rotating shaft, each group of fan blades is connected with the two supporting brackets, the fan blade fixing sleeve is positioned between the two bracket fixing sleeves, one side of each fan blade is rotationally connected with one telescopic rod, the plurality of groups of fan blades are arranged close to the outlet end of the outer barrel, and the sleeves are inserted and sleeved outside the plurality of groups of fan blades from the outlet end of the outer barrel; the outer cylinder outlet end is equipped with pressure sensor and digital display viscometer, and pressure sensor and digital display viscometer pass through the transmission line and are connected with the tablet, set up the microprocessor converter on the tablet and receive the transmitter, and the tablet is connected with DSP control module below it.
In the scheme, the fan blades are provided with five groups.
In the scheme, the rotating shaft is connected with the motor, and the motor adjusts the rotating speed according to the numerical value of the rotating speed display through the speed regulator.
Scalable short pole comprises three sections telescopic tube sliding connection in the above-mentioned scheme, by last first section telescopic tube, second section telescopic tube, the telescopic tube of third section of thick bamboo of being respectively down, the spring sets up in the telescopic tube of third section, and first section telescopic tube has the ball of evagination, and the section of thick bamboo wall of the telescopic tube of second section is fluted.
The experimental method of the device capable of simultaneously realizing partial pressure and partial mass injection comprises the following steps:
the method comprises the following steps: before injecting the solution, determining the number of groups of fan blades needing to be unfolded according to the expected throttling pressure difference between the outlet end of the outer cylinder and the inlet end of the outer cylinder, and enabling all the groups of fan blades to be positioned in the sleeve;
step two: injecting solution into the outer cylinder;
step three: changing the number of the fan blade groups in the sleeve, controlling the fan blades in the closed state to be changed into the fan blade groups in the unfolded state to be gradually increased, when the number of the fan blade groups in the unfolded state is changed, the flow area of the injected solution passing through the section where the fan blades in the unfolded state are located is changed, and the more the number of the fan blade groups in the unfolded state is, the larger the throttling pressure difference between the outlet end of the outer cylinder and the inlet end of the outer cylinder is;
step four: determining the rotating speed of the unfolded fan blades according to the molecular weight of the finally obtained polymer;
step five: the motor is regulated through the speed regulator, the rotating speed of the rotating shaft is regulated, the rotating speed range is 0-2000 rpm, and the rotating speed displayed on the rotating speed display is consistent with the expectation; when the rotating speed of the fan blades in the unfolding state changes, the injected solution is subjected to mechanical shearing action when passing through the section where the fan blades in the unfolding state are located, the molecular weight of the polymer changes, and the molecular weight of the polymer flowing out of the outlet end of the outer cylinder is smaller when the number of the fan blades in the unfolding state is larger and the rotating speed is higher;
step six: establishing a relation between the intrinsic viscosity of the polymer solution and the viscosity of the polymer solution;
characteristic viscosity number [ eta ]]It is defined as the viscosity number
Or logarithmic viscosity number
The extrapolated value at infinite dilution,
calculating intrinsic viscosity of polymer solution by one-point method, and measuring specific viscosity eta at one concentrationspDirectly calculate the intrinsic viscosity [ eta ]]A value; "one point method" to obtain [ eta]The equation of (c):
c is the concentration of the polymer solution;
wherein etarIs the viscosity ratio, η0Is the viscosity of a pure solvent, and eta is the viscosity of a polymer solution at the same temperature;
step seven: and establishing a relation between the molecular weight of the polymer and the intrinsic viscosity of the polymer solution, and finally displaying the molecular weight of the polymer on a computer in real time.
The invention has the following beneficial effects:
1. compared with the traditional indoor experimental stratified injection pressure-dividing device and quality-dividing device, the invention can continuously adjust the range of injection pressure and polymer molecular weight in real time, and can realize the functions of pressure division and quality division. In the experimental process, the pressure of the solution flowing out of the outlet end can be adjusted by changing the unfolding states of different groups of fan blades and adjusting different rotating speeds of the motor without stopping the pump, so that the molecular weight of the polymer in the solution is changed, and the aim of partial pressure and quality division is fulfilled. The time required for replacing the partial pressure tools with different structural parameters is saved, the cost required for respectively processing the partial pressure tools and the quality dividing tools is reduced, the system error is reduced, and the accuracy of the experimental result is improved.
2. The invention can realize the real-time measurement of the layered injection parameters, which is embodied in the real-time measurement of the solution pressure and the polymer molecular weight at the outlet end:
(1) the invention can realize the real-time measurement of the solution pressure at the outlet end. The traditional dispensing device can only reduce the pressure of the solution, but does not measure the specific value of the pressure of the solution in the device.
(2) The invention can realize real-time measurement of the molecular weight of the polymer in the solution at the outlet end. The viscosity value of the solution is measured by a digital display viscometer, and the method has the characteristics of high measurement sensitivity, reliable test result and the like. The molecular weight of the polymer after the quality separation process can be measured in real time by establishing the relationship between the intrinsic viscosity number of the polymer solution and the viscosity of the polymer solution and establishing the relationship between the molecular weight of the polymer and the intrinsic viscosity number of the polymer solution.
3. The invention has the advantages of simple operation, strong controllability, high automation degree, strong innovation and capability of acquiring and feeding back information in real time and simultaneously realizing the functions of partial pressure and quality division on the solution flowing through the system.
Fourthly, explanation of the attached drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic three-dimensional view of a fully extended blade according to the present invention;
FIG. 3 is a schematic three-dimensional view of a fully closed fan blade according to the present invention;
FIG. 4 is a schematic view of the inlet end structure of the solution flow structure in the present invention;
FIG. 5 is a schematic view of a three-section telescopic stub of the support bracket of the present invention;
FIG. 6 is a schematic three-dimensional structure of the connecting part of the three-section telescopic short rods and the fixing sleeve of the support bracket of the invention;
FIG. 7 is a schematic three-dimensional structure of the connecting part of the three-section telescopic short rods and the fan blades of the supporting bracket structure of the present invention;
FIG. 8 is a schematic representation of the operation of the pressure sensor of the present invention;
FIG. 9 is a pressure measurement and molecular weight measurement workflow diagram of the present invention.
In the figure: 1, an outer cylinder; 2, sleeving a sleeve; 3, fan blades; 4, a rotating shaft; 5 supporting the bracket; 6 a pressure sensor; 7 a rotation speed display; 8, a motor; 9, a speed regulator; 10 digital display viscometer; 11 a DSP control module; 12 a sensing plate; 13 a transmission line; 14, a bracket fixing sleeve; 15 a first section of telescopic cylinder; 16 second section of telescopic cylinder; 17 a third section of telescopic cylinder; 18 spring.
The specific implementation mode is as follows:
the invention is further described below with reference to the accompanying drawings:
the device capable of realizing partial pressure and dual injection simultaneously combines the functions of the traditional partial pressure injection tool and the molecular weight regulating device. The novel partial pressure and quality-divided indoor experimental device can change a corresponding mechanical structure according to actual requirements, can realize polymer partial pressure and quality-divided injection simultaneously on the premise of not stopping a pump, and meets the requirements of different injection pressure conditions and different molecular weight conditions.
As shown in fig. 1-9, the device capable of simultaneously achieving partial pressure and mass injection comprises an outer cylinder 1, a sleeve 2, five sets of fan blades 3, a rotating shaft 4, a pressure sensor 6, a rotating speed display 7, a digital display viscometer 10 and a DSP control module 11, wherein the outer cylinder 1, the sleeve 2 and the rotating shaft 4 are concentrically and coaxially arranged, the sets of fan blades 3 are sequentially and equidistantly mounted on the rotating shaft 4 through corresponding support brackets 5, the rotating shaft 4 is connected with a motor 8, and the motor 8 adjusts the rotating speed according to the value of the rotating speed display 7 through a speed regulator 9. Each group of fan blades 3 is formed by rotationally connecting three fan blades and a fan blade fixing sleeve, the three fan blades 3 are uniformly distributed around the fan blade fixing sleeve, the fan blade fixing sleeve and two support fixing sleeves 14 are all embedded and fixed on a rotating shaft 4, each group of fan blades 3 is connected with two support supports 5, the fan blade fixing sleeve is positioned between the two support fixing sleeves 14, one side of each fan blade is rotationally connected with one telescopic rod, the five groups of fan blades 3 are arranged close to the outlet end of an outer cylinder 1, a sleeve 2 is inserted and sleeved outside the five groups of fan blades 3 from the outlet end of the outer cylinder 1, and the inlet end of the outer cylinder 1 is; pressure sensor 6 and digital display viscometer 10 are equipped with to 1 exit end of urceolus, pressure sensor 6 and digital display viscometer 10 are connected with tablet 12 through transmission line 13, set up microprocessor converter and receiving transmitter on tablet 12, tablet 12 is connected with DSP control module 11 below it, when solution flows out from 1 exit end of urceolus, pressure sensor 6 transmits the pressure signal that solution flows to tablet 12, and carry out the information summary on DSP control module 11, then carry electronic signal to the computer terminal in through the signal transmitter on DSP control module 11 and obtain relevant pressure information, but real time monitoring injected pressure and viscosity, pressure sensor 6 sets up in 1 inner wall of urceolus.
A rotor of the digital display viscometer 10 is arranged at the outlet end of the outer cylinder 1, when the rotor rotates in the liquid flowing out of the outlet end, the liquid can generate a viscosity moment acting on the rotor, and the viscosity moment is larger when the viscosity of the liquid is larger; conversely, the smaller the viscosity of the liquid, the smaller the viscous torque. The viscous torque acting on the rotor is detected by a sensor inside the digital display viscometer 10 through microcomputer technology, and the data detected by the sensor is digitally processed by a computer, so that the contents such as the viscosity value of the measured liquid can be clearly displayed on a display screen. Then the molecular weight of the polymer can be obtained according to the relation between the viscosity and the molecular weight.
The operating steps of the digital display viscometer are as follows:
the method comprises the following steps: and screwing the selected rotor into the connecting screw rod.
Step two: the digital display viscometer 10 switch is turned on, the number of the selected rotor is input, the rotating speed is selected, and the flashing digit is set by pressing a TAB key.
Step three: the elevation frame knob is rotated to make the viscometer slowly descend, and the rotor is gradually immersed into the liquid to be measured until the liquid level is just at the liquid level mark of the rotor.
Step four: and pressing a measuring key, and measuring the viscosity value of the solution at the current rotor and rotating speed after a proper time.
Referring to fig. 2-7, each support bracket 5 of the present invention is composed of a bracket fixing sleeve 14 and three telescopic rods rotatably connected thereto, each telescopic short rod is composed of three telescopic cylinders slidably connected, a spring 18 is disposed in the telescopic cylinder, the fixing sleeve is nested and fixed on the rotating shaft 4, one end of each three telescopic short rods is concentratedly connected with the fixing sleeve, the other end is respectively connected with a blade, each set of blades 3 is connected with two support brackets 5, that is, each blade is respectively connected with one three telescopic short rod on the left and right sides. When the fan blade 3 of a certain group is completely unfolded, the length of the three sections of telescopic short rods at the two sides of the three fan blades of the group is two, and the three sections of telescopic short rods are in a balanced state; when certain set of flabellum 3 is in the not state of expanding, length one side of the scalable quarter butt of three sections of three flabellum both sides of this group this moment is the three section, and the opposite side is a section, and wherein, the length of the scalable quarter butt of flabellum lodging direction is a section, is in compression state, and the length of the scalable quarter butt of opposite side is the three section, is in tensile state, all is not in balanced state. The angle between each two short rods on the same side is the same, and when the blades of each set of fan blades 3 are completely unfolded, the flow direction of the fluid between each set is consistent when the blades of the fan blades are fixed. The outer cylinder 1, the sleeve 2 and the rotating shaft 4 are concentrically and coaxially arranged.
The telescopic short rod is formed by connecting three telescopic cylinders in a sliding mode, a first telescopic cylinder 15, a second telescopic cylinder 16 and a third telescopic cylinder 17 are arranged from top to bottom respectively, a spring 18 is arranged in the third telescopic cylinder 17, the first telescopic cylinder 15 is provided with a convex ball, and the wall of the second telescopic cylinder 16 is provided with a groove.
The number of each group of fan blades 3 is three, and in view of mechanical angle, the stability of a triangular structure formed by the three fan blades is strong, so that electric power and energy can be saved, and meanwhile, the manufacturing cost is reduced. The fan blade 3 is made of aluminum blades, the fan blade made of the aluminum blades is hard in texture, high in toughness and good in shearing effect, and in addition, the aluminum blades are not easy to deform, strong in fluid impact resistance and durable.
Each group of fan blades 3 is connected with two supporting brackets 5, when in an initial state, the sleeve 2 is nested around all 5 groups of fan blades, the inner wall of the sleeve 2 is attached to the edge of the fan blades, the fan blades are in an undeployed state under the action of the pressure of the sleeve 2, the overlapping degree of the sleeve 2 and the 5 groups of fan blades fixed on the rotating shaft 4 can be adjusted, each group of fan blades 3 are controlled to be in a closed state or in a deployed state, the flow area of injected solution passing through the section of each group of fan blades 3 is changed, and therefore the pressure of the injected solution is changed. In addition, the motor 8 can be started to drive the blades of each group of fan blades 3 on the rotating shaft 4 to rotate, the rotating speed of the fan blades 3 is adjusted through the speed regulator 9, and the polymer solution flowing through the section where each group of fan blades 3 is located is mechanically sheared, so that the molecular weight of the polymer in the injected solution is changed.
When a certain group of fan blades 3 is completely unfolded, the length of the three sections of telescopic short rods at two sides of the three fan blades of the group is two, at the moment, in the three-section telescopic short rod structure, the first section of the telescopic short rod enters the inside of the second section, the round ball of the convex part of the first section is clamped in the groove of the second section, the fan blades 3 are in a balanced state under the action of forces with the same size and opposite directions of the telescopic short rods at the left side and the right side, and the fan blades are in a completely unfolded state at the moment; when certain set of flabellum 3 is in the closed state, length one side of the scalable quarter butt of three sections of three flabellum both sides of this group this moment is the three section, the opposite side is a lesson, wherein, the flabellum lodging direction is the length of the scalable quarter butt of the slip direction of sleeve pipe 2 is a lesson, at this moment, in the flexible quarter butt structure of three sections, the inside of third section is entered into with the second festival of flexible quarter butt, the spring 18 of third section bottom is extruded to the bottom of second festival, flexible quarter butt is in the compression state, the length of the scalable quarter butt of opposite side is the three section, at this moment, in the flexible quarter butt structure of three sections, first festival, second section and third section all do not have the part of coincidence, be in the state of straightening, the flabellum receives the unequal power of the flexible quarter butt size of left and right sides, the flabellum is not in balanced state. Therefore, when the sliding sleeve makes the inner wall of the sleeve 2 not contact with the fan blades, the fan blades 3 have a tendency to automatically develop to a fully unfolded state.
Referring to fig. 9, the experimental method of the device capable of simultaneously realizing partial pressure and dual injection is as follows:
the method comprises the following steps: before injecting the solution, determining the number of groups of fan blades needing to be unfolded according to the expected throttling pressure difference between the outlet end of the outer cylinder 1 and the inlet end of the outer cylinder 1, and enabling all the groups of fan blades to be positioned in the sleeve 2;
step two: injecting a solution into the outer cylinder 1;
step three: the number of the fan blade groups in the sleeve 2 is changed, the number of the fan blade groups in a closed state is controlled to be changed into the number of the fan blade groups in an unfolded state, when the number of the fan blade groups in the unfolded state is changed, the flow area of the injected solution passing through the section where the fan blades in the unfolded state are located is changed, the more the number of the fan blade groups in the unfolded state is, the larger the throttling pressure difference between the outlet end of the outer barrel 1 and the inlet end of the outer barrel 1 is;
step four: determining the rotating speed of the unfolded fan blades according to the molecular weight of the finally obtained polymer;
step five: the speed of the rotation of the rotating shaft 4 is adjusted by adjusting the motor 8 through a speed regulator 9, and the rotating speed range is 0-2000 rpm until the rotating speed displayed on the rotating speed display 7 is consistent with expectation; when the rotating speed of the fan blades in the unfolding state changes, the injected solution is subjected to mechanical shearing action when passing through the section where the fan blades in the unfolding state are located, the molecular weight of the polymer changes, and the molecular weight of the polymer flowing out of the outlet end of the outer cylinder 1 is smaller when the number of the fan blades in the unfolding state is larger and the rotating speed is higher;
step six: establishing a relation between the intrinsic viscosity of the polymer solution and the viscosity of the polymer solution;
characteristic viscosity number [ eta ]]It is defined as the viscosity number
Or logarithmic viscosity number
The extrapolated value at infinite dilution,
calculating intrinsic viscosity of polymer solution by one-point method, and measuring specific viscosity eta at one concentrationspDirectly calculate the intrinsic viscosity [ eta ]]A value; "one point method" to obtain [ eta]The equation of (c):
c is the concentration of the polymer solution;
wherein etarIs the viscosity ratio, η0Is the viscosity of a pure solvent, and eta is the viscosity of a polymer solution at the same temperature;
step seven: and establishing a relation between the molecular weight of the polymer and the intrinsic viscosity of the polymer solution, and finally displaying the molecular weight of the polymer on a computer in real time.
A large number of previous experiments have demonstrated that the intrinsic viscosity [ eta ] for a given polymer at a given solvent and temperature]The value of [ eta ] is determined only by the molecular weight of the given polymer]Viscosity average molecular weight M with PolymerηThe relationship (c) can be expressed by a Mark-Houwink equation:
wherein alpha is an expansion factor and is related to the form of polymer molecular chains in the solution; k is a proportionality constant.
The invention can realize double control of solution injection pressure and polymer molecular weight, can ensure that the oil displacement effect of a high-permeability layer is not reduced, and increases polymers in pores of a low-permeability layer, thereby improving the overall development effect of a block.
Claims (4)
1. A device capable of realizing partial pressure and partial injection simultaneously is characterized in that: the device capable of simultaneously realizing partial pressure and quality injection comprises an outer cylinder (1), a sleeve (2), a plurality of groups of fan blades (3), a rotating shaft (4), a pressure sensor (6), a rotating speed display (7), a digital display viscometer (10) and a DSP control module (11), wherein the outer cylinder (1), the sleeve (2) and the rotating shaft (4) are concentrically and coaxially arranged, the plurality of groups of fan blades (3) are sequentially and equidistantly arranged on the rotating shaft (4) through corresponding supporting brackets (5), each group of fan blades (3) is formed by rotationally connecting three fan blades with a fan blade fixing sleeve, the three fan blades are uniformly distributed around the fan blade fixing sleeve, each supporting bracket (5) is formed by a bracket fixing sleeve (14) and three telescopic rods rotationally connected with the bracket fixing sleeve, the fan blade fixing sleeve and two bracket fixing sleeves (14) are all embedded and fixed on the rotating shaft (4), and each group of fan blades is connected with the two supporting brackets (5), the fan blade fixing sleeve is positioned between the two support fixing sleeves (14), one side of each fan blade is rotatably connected with one telescopic rod, the plurality of groups of fan blades (3) are arranged close to the outlet end of the outer cylinder (1), and the sleeve (2) is inserted and sleeved outside the plurality of groups of fan blades from the outlet end of the outer cylinder (1); the outlet end of the outer cylinder (1) is provided with a pressure sensor (6) and a digital viscometer (10), the pressure sensor (6) and the digital viscometer (10) are connected with an induction plate (12) through a transmission line (13), the induction plate (12) is provided with a microprocessor converter and a receiving transmitter, and the induction plate (12) is connected with a DSP control module (11) below the induction plate;
in an initial state, the sleeve (2) is nested around all groups of fan blades, the inner wall of the sleeve (2) is attached to the edges of the fan blades, the fan blades are in an undeployed state under the action of the pressure of the sleeve (2), the superposition degree of all groups of fan blades fixed on the sleeve (2) and the rotating shaft (4) is adjusted to control the fan blades (3) of each group to be in a closed state or in a deployed state, and the flow area of injected solution passing through the section where the fan blades (3) of each group are located is changed, so that the pressure of the injected solution is changed; the more the fan blade groups in the unfolding state are, the faster the rotating speed is, and finally the molecular weight of the polymer flowing out of the outlet end of the outer cylinder (1) is smaller;
the rotating shaft (4) is connected with the motor (8), and the motor (8) adjusts the rotating speed according to the numerical value of the rotating speed display (7) through the speed regulator (9).
2. The apparatus of claim 1, wherein the apparatus is capable of simultaneously performing partial pressure injection and partial mass injection, and further comprising: the telescopic rod is formed by connecting three telescopic cylinders in a sliding mode, a first section of telescopic cylinder (15), a second section of telescopic cylinder (16) and a third section of telescopic cylinder (17) are arranged from top to bottom respectively, a spring (18) is arranged in the third section of telescopic cylinder (17), the first section of telescopic cylinder (15) is provided with a convex ball, and the wall of the second section of telescopic cylinder (16) is provided with a groove.
3. The apparatus of claim 2, wherein the apparatus is further characterized in that: the fan blades (3) are provided with five groups.
4. An experimental method of the device for realizing partial pressure and injection of different quality simultaneously according to claim 3, characterized in that:
the method comprises the following steps: before injecting the solution, determining the number of groups of fan blades required to be unfolded according to the expected throttling pressure difference between the outlet end of the outer cylinder (1) and the inlet end of the outer cylinder (1), and enabling all the groups of fan blades to be positioned in the sleeve (2);
step two: injecting a solution into the outer cylinder (1);
step three: the number of the fan blade groups in the sleeve (2) is changed, the number of the fan blade groups in the closed state is controlled to be changed into the number of the fan blade groups in the unfolded state, when the number of the fan blade groups in the unfolded state is changed, the flow area of the injected solution passing through the section where the fan blades in the unfolded state are located is changed, and the more the number of the fan blade groups in the unfolded state is, the larger the throttling pressure difference between the outlet end of the outer cylinder and the inlet end of the outer cylinder is;
step four: determining the rotating speed of the unfolded fan blades according to the molecular weight of the finally obtained polymer;
step five: the motor (8) is regulated through the speed regulator (9), the rotating speed of the rotating shaft (4) is regulated, and the rotating speed range is 0-2000 rpm until the rotating speed displayed on the rotating speed display (7) is in line with expectation; when the rotating speed of the fan blades in the unfolding state changes, the injected solution is subjected to mechanical shearing action when passing through the section where the fan blades in the unfolding state are located, the molecular weight of the polymer changes, and the molecular weight of the polymer flowing out of the outlet end of the outer cylinder is smaller when the number of the fan blades in the unfolding state is larger and the rotating speed is higher;
step six: establishing a relation between the intrinsic viscosity of the polymer solution and the viscosity of the polymer solution;
characteristic viscosity number [ eta ]]It is defined as the viscosity number
Or logarithmic viscosity number
The extrapolated value at infinite dilution,
calculating intrinsic viscosity of polymer solution by one-point method, and measuring specific viscosity eta at one concentrationspDirectly calculate the intrinsic viscosity [ eta ]]A value; "one point method" to obtain [ eta]The equation of (c):
c is the concentration of the polymer solution;
wherein etarIs the viscosity ratio, η0Is the viscosity of a pure solvent, and eta is the viscosity of a polymer solution at the same temperature;
step seven: and establishing a relation between the molecular weight of the polymer and the intrinsic viscosity of the polymer solution, and finally displaying the molecular weight of the polymer on a computer in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910678438.8A CN110374565B (en) | 2019-07-25 | 2019-07-25 | Device capable of realizing partial pressure and mass injection simultaneously and experimental method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910678438.8A CN110374565B (en) | 2019-07-25 | 2019-07-25 | Device capable of realizing partial pressure and mass injection simultaneously and experimental method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110374565A CN110374565A (en) | 2019-10-25 |
| CN110374565B true CN110374565B (en) | 2021-08-06 |
Family
ID=68256075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910678438.8A Active CN110374565B (en) | 2019-07-25 | 2019-07-25 | Device capable of realizing partial pressure and mass injection simultaneously and experimental method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110374565B (en) |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2763501Y (en) * | 2005-02-01 | 2006-03-08 | 孙光胜 | Depressurizing regulator for separated water injection well |
| CN201269089Y (en) * | 2007-06-27 | 2009-07-08 | 普拉德研究及开发股份有限公司 | Inflow control device |
| CN201546649U (en) * | 2009-06-02 | 2010-08-11 | 中国石油化工股份有限公司 | Thickened oil impeller automatic-rotating efficient viscosity reducing device |
| CN101836068A (en) * | 2007-10-26 | 2010-09-15 | 格伦德福斯管理联合股份公司 | Controlling transfer through one or more transferring elements |
| CN201771818U (en) * | 2010-09-13 | 2011-03-23 | 上海鼓风机厂有限公司 | Ventilator inlet flow adjustment device |
| CN102000523A (en) * | 2010-11-08 | 2011-04-06 | 浙江长城减速机有限公司 | Compound stirring device for kettle |
| CN203239827U (en) * | 2013-05-07 | 2013-10-16 | 隔而固(青岛)振动控制有限公司 | Viscous damper |
| CN103752029A (en) * | 2013-12-08 | 2014-04-30 | 天津泉达农作物种植有限公司 | Three-dimensional rotary fluid-type tower plate |
| CN203893704U (en) * | 2014-01-27 | 2014-10-22 | 南通曙光机电工程有限公司 | Non-isometric dual helical baffle plate tubular heat exchanger |
| CN204268502U (en) * | 2014-11-28 | 2015-04-15 | 国家电网公司 | Throttle resistance adjusting device and pulverized coal preparation system |
| CN104806213A (en) * | 2015-03-10 | 2015-07-29 | 东北石油大学 | Novel partial pressure injection tool |
| CN104989348A (en) * | 2015-07-18 | 2015-10-21 | 东北石油大学 | Quality-divided separated injection device for mine field test simulation and method |
| CN104989359A (en) * | 2015-07-03 | 2015-10-21 | 东北石油大学 | Non-homogeneity layering injection oriented fracturing experimental device |
| WO2016019214A1 (en) * | 2014-07-31 | 2016-02-04 | Dow Global Technologies Llc | Improved process for treating oil sands fine tailings |
| CN106065952A (en) * | 2016-07-26 | 2016-11-02 | 西安科瑞自动化有限责任公司 | Single (double) wing coal dust throttling comb and device |
| CN205978496U (en) * | 2016-07-26 | 2017-02-22 | 天津奇昌阀门制造有限公司 | Butterfly valve convenient to regulating fluid velocity of flow |
| CN206253039U (en) * | 2016-11-30 | 2017-06-16 | 山东恒联新材料股份有限公司 | A kind of pipe-line mixer for high-viscosity material |
| CN108002411A (en) * | 2017-12-12 | 2018-05-08 | 福州大学 | A kind of method that defluorinate lepidolite multistage pressure tank dissolution carries lithium |
| CN108607433A (en) * | 2018-05-22 | 2018-10-02 | 徐州腾睿智能装备有限公司 | One kind is for cool room agitating device in sewage high shear jet apparatus |
| CN207975273U (en) * | 2018-03-14 | 2018-10-16 | 嘉兴岱源真空科技有限公司 | A kind of combination throttle valve |
| WO2019003209A1 (en) * | 2017-06-30 | 2019-01-03 | Sabic Global Technologies B.V. | Oligomeriser with improved mixing performance |
| CN109681161A (en) * | 2018-04-03 | 2019-04-26 | 中国石油化工股份有限公司 | Multilayer system separate mass and separate pressure water-filling method and water injection string |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420076A (en) * | 2017-07-07 | 2017-12-01 | 中国石油天然气股份有限公司 | A kind of turbine augmented injection device applied in dispensing well in oil field |
-
2019
- 2019-07-25 CN CN201910678438.8A patent/CN110374565B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2763501Y (en) * | 2005-02-01 | 2006-03-08 | 孙光胜 | Depressurizing regulator for separated water injection well |
| CN201269089Y (en) * | 2007-06-27 | 2009-07-08 | 普拉德研究及开发股份有限公司 | Inflow control device |
| CN101836068A (en) * | 2007-10-26 | 2010-09-15 | 格伦德福斯管理联合股份公司 | Controlling transfer through one or more transferring elements |
| CN201546649U (en) * | 2009-06-02 | 2010-08-11 | 中国石油化工股份有限公司 | Thickened oil impeller automatic-rotating efficient viscosity reducing device |
| CN201771818U (en) * | 2010-09-13 | 2011-03-23 | 上海鼓风机厂有限公司 | Ventilator inlet flow adjustment device |
| CN102000523A (en) * | 2010-11-08 | 2011-04-06 | 浙江长城减速机有限公司 | Compound stirring device for kettle |
| CN203239827U (en) * | 2013-05-07 | 2013-10-16 | 隔而固(青岛)振动控制有限公司 | Viscous damper |
| CN103752029A (en) * | 2013-12-08 | 2014-04-30 | 天津泉达农作物种植有限公司 | Three-dimensional rotary fluid-type tower plate |
| CN203893704U (en) * | 2014-01-27 | 2014-10-22 | 南通曙光机电工程有限公司 | Non-isometric dual helical baffle plate tubular heat exchanger |
| WO2016019214A1 (en) * | 2014-07-31 | 2016-02-04 | Dow Global Technologies Llc | Improved process for treating oil sands fine tailings |
| CN204268502U (en) * | 2014-11-28 | 2015-04-15 | 国家电网公司 | Throttle resistance adjusting device and pulverized coal preparation system |
| CN104806213A (en) * | 2015-03-10 | 2015-07-29 | 东北石油大学 | Novel partial pressure injection tool |
| CN104989359A (en) * | 2015-07-03 | 2015-10-21 | 东北石油大学 | Non-homogeneity layering injection oriented fracturing experimental device |
| CN104989348A (en) * | 2015-07-18 | 2015-10-21 | 东北石油大学 | Quality-divided separated injection device for mine field test simulation and method |
| CN106065952A (en) * | 2016-07-26 | 2016-11-02 | 西安科瑞自动化有限责任公司 | Single (double) wing coal dust throttling comb and device |
| CN205978496U (en) * | 2016-07-26 | 2017-02-22 | 天津奇昌阀门制造有限公司 | Butterfly valve convenient to regulating fluid velocity of flow |
| CN206253039U (en) * | 2016-11-30 | 2017-06-16 | 山东恒联新材料股份有限公司 | A kind of pipe-line mixer for high-viscosity material |
| WO2019003209A1 (en) * | 2017-06-30 | 2019-01-03 | Sabic Global Technologies B.V. | Oligomeriser with improved mixing performance |
| CN108002411A (en) * | 2017-12-12 | 2018-05-08 | 福州大学 | A kind of method that defluorinate lepidolite multistage pressure tank dissolution carries lithium |
| CN207975273U (en) * | 2018-03-14 | 2018-10-16 | 嘉兴岱源真空科技有限公司 | A kind of combination throttle valve |
| CN109681161A (en) * | 2018-04-03 | 2019-04-26 | 中国石油化工股份有限公司 | Multilayer system separate mass and separate pressure water-filling method and water injection string |
| CN108607433A (en) * | 2018-05-22 | 2018-10-02 | 徐州腾睿智能装备有限公司 | One kind is for cool room agitating device in sewage high shear jet apparatus |
Non-Patent Citations (3)
| Title |
|---|
| 分质工具中注入聚合物表观黏度变化数学模型的建立及应用;黄斌,李晓慧,傅程,王鑫;《油气藏评价与开发》;20181231;48-55页 * |
| 新型三元复合驱分压注入工具数值模拟与实验研究;韩册;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20180215;26-41页 * |
| 新型降压槽结构设计及流动特性分析;黄斌 等;《数学的实践与认识》;20170831;178-185页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110374565A (en) | 2019-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202229973U (en) | Universal material test machine | |
| CN2809617Y (en) | Dynamic balance tester for air compressing impeller with blind hole | |
| CN205967601U (en) | Pipe cutter | |
| CN110374565B (en) | Device capable of realizing partial pressure and mass injection simultaneously and experimental method thereof | |
| CN108189527A (en) | The continuous laminating apparatus of the roll-to-roll graphene of integral type | |
| CN104448612A (en) | High-impact-resistant modified polyvinyl chloride pipe for water supply and preparation method thereof | |
| CN111024589B (en) | Detection device for building waterproof material based on high-voltage magnetization principle | |
| CN205274835U (en) | Coiled material tectorial membrane mechanism of rectifying | |
| CN207280377U (en) | The rotatable well room detection periscope of camera | |
| CN106908213A (en) | A kind of umbrella wind resistance power test machine | |
| CN207004802U (en) | A kind of screw pump performance testing device | |
| CN206891691U (en) | One kind is based on flash lamp streamline midway testboard | |
| CN105257518B (en) | A kind of accurate quantification calibration method of peristaltic pump and peristaltic pump | |
| CN102507901B (en) | Soil humidity measurement device and method based on dual-sensor data fusion technique | |
| CN204439494U (en) | A kind of device of on-line measurement polymer melt rheological parameter | |
| CN103101268A (en) | Frosted polyvinylidene fluoride film and preparation method thereof | |
| CN116298428A (en) | Overhauling device for new energy automobile | |
| CN106354980B (en) | External characteristics mathematical model construction method is pumped under a kind of rotating forward pump operating condition | |
| CN205855493U (en) | A kind of volume film machine | |
| CN104748956A (en) | Test device and method of performance of screw drill motor | |
| CN108362612B (en) | Method and equipment for measuring true viscosity of rubber asphalt | |
| CN108333334A (en) | A kind of device and method measuring concrete pumping pressure and discharge relation | |
| CN104266315B (en) | Wind pipe machine gear setting method and device and wind pipe machine | |
| CN209614388U (en) | Cutter is used in a kind of preparation of fine work fashioned iron | |
| CN209624306U (en) | Film workshop semi-automatic water examines platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |