CN106124118A - Bubble rising instrument and using method thereof - Google Patents
Bubble rising instrument and using method thereof Download PDFInfo
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- CN106124118A CN106124118A CN201610520944.0A CN201610520944A CN106124118A CN 106124118 A CN106124118 A CN 106124118A CN 201610520944 A CN201610520944 A CN 201610520944A CN 106124118 A CN106124118 A CN 106124118A
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- bubble
- pump
- metal kettle
- pressure
- gas
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000000630 rising effect Effects 0.000 title claims abstract description 17
- 239000011521 glass Substances 0.000 claims abstract description 66
- 239000002184 metal Substances 0.000 claims abstract description 65
- 229910052751 metal Inorganic materials 0.000 claims abstract description 65
- 239000010779 crude oil Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 57
- 239000003921 oil Substances 0.000 description 25
- 238000012360 testing method Methods 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 8
- 238000010998 test method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 210000005239 tubule Anatomy 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000029052 metamorphosis Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a bubble rising instrument, which comprises: a metal kettle, one side of which is provided with a camera and the other side is provided with a light source body; the glass cylinder is positioned in the metal kettle, the glass cylinder is fixedly arranged in the metal kettle and is connected with the first pump, the lower end of the glass cylinder is provided with an opening, and the glass cylinder is communicated with the metal kettle; the tail end of the gas injection needle tube is connected with the second pump, and the needle head end of the gas injection needle tube extends into the glass cylinder; the two electromagnetic coils are connected with the controller, are positioned in the metal kettle and are arranged on two sides of the glass cylinder; also provided is a method of using a bubble rising apparatus, comprising: step a: filling water into the metal kettle by a first pump until the water is at a first set pressure, and injecting crude oil into the glass cylinder by the first pump at a second set pressure higher than the first set pressure; step b: pumping gas into the gas injection syringe at a third set pressure by the second pump; step c: the controller is turned on to generate an alternating electromagnetic field until the bubbles are separated from the needle end, and then the camera is turned on. The invention can make the bubble fall off in time and the size of the bubble is consistent.
Description
Technical field
The present invention relates to oil-gas field development field, refer to a kind of device for testing oil gas minimum miscibility pressure and make
By method, a kind of liter bubble instrument that can assist disengaging bubble and using method thereof.
Background technology
In recent years, along with CO2The development of miscible displacement of reservoir technology, the measurement technology of oil gas minimum miscibility pressure (MMP)
Improving and also receive much concern, this value is that Oil Field implements CO2One of key parameter of technology of reservoir sweep and oil reservoir solution formulation, accurately
And obtaining this value rapidly is the key that petroleum science and technology worker solves many technology of reservoir sweep difficult problems.At present, it is thus achieved that oil gas is minimum
The method of testing of miscible pressure (MMP) value includes: tubule method of testing, interfacial tension method of testing and liter bubble instrument method, tubule therein
Method of testing is widely used in each major oil companies and scientific research institutions, but tubule method of testing in use exists time-consuming long
The shortcomings such as (about 5 weeks), cost are high, experimental model standardization level is low, and interfacial tension method is affected by human factors because of its existence
Seriously, use limited deficiency to use less, rise bubble instrument method have the shortest, meet the internal CO of oil reservoir2Drive process, belong to oil
The advantages such as gas multiple-contact, generally one sample of test can complete in several hours, therefore, rises bubble instrument method and has the most wide
Application prospect.
The test philosophy rising bubble instrument method is: by the bottom of a glass infuser of rustless steel needle tubing insertion vertically upward, glass infuser
Inside it is pre-charged with crude oil, in glass infuser, injects a minute bubbles (usually nitrogen (N by needle point2), carbon dioxide (CO2) or
Natural gas (NG)), utilize camera system to observe bubble motion feature in crude oil；Come really finally according to movement characteristic and stroke
Stand oil gas minimum miscibility pressure (MMP).
But, find in experimental test procedures, gas by after needle tubing and from needle point out time, often hang over needle point
Place, difficult drop-off, and after continuing to inject gas, cause could departing from after at needle point, bubble constantly increases, each Air Bubble Size
Differ and cause experimental error relatively big, test inaccurate, therefore, how to make bubble easily and in time come off, and with uniform big
The little difficult problem becoming the most in the urgent need to address that comes off.
Because the problem that above-mentioned prior art exists, the present inventor combines the design for many years of relevant manufacture field and use
Experience, is aided with too strong Professional knowledge, and existing structure is optimized design, it is provided that a kind of liter steeps instrument and using method thereof,
Overcome drawbacks described above.
Summary of the invention
It is an object of the invention to provide a kind of liter and steep instrument, it can make bubble come off in time, and Air Bubble Size is consistent, can realize
The test of oil gas minimum miscibility pressure, experiment accuracy is high, favorable repeatability.
It is a further object of the present invention to provide a kind of using method rising bubble instrument, it can make bubble come off in time, and bubble
In the same size, the test of oil gas minimum miscibility pressure can be realized, experiment accuracy is high, favorable repeatability.
The above-mentioned purpose of the present invention can use following technical proposal to realize:
The present invention provides a kind of bubble instrument that rises, and wherein, the described bubble instrument that rises includes: metal kettle, its side is vertically provided with
Multiple photographic head, its opposite side is provided with the light source body relative with multiple described photographic head；Glass infuser, it is positioned at described metal kettle
In, the upper end of described glass infuser is fixedly arranged on the roof of described metal kettle and is connected with the first pump, and the lower end of described glass infuser is for opening
Mouthful, described glass infuser is connected with described metal kettle by described opening；Gas injects needle tubing, its backshank end and the second pump phase
Even, its needle end stretches in described glass infuser through the diapire of described metal kettle；Two solenoids, described solenoid and control
Device processed is connected, and two described solenoids are positioned at described metal kettle and are located at the both sides of described glass infuser symmetrically, described electricity
Magnetic coil injects the needle end level of relative of needle tubing with described gas.
In a preferred embodiment, the roof of described metal kettle is provided with end cover, and described glass infuser is fixedly arranged on described
End cover, described glass infuser is connected with described first pump by described end cover.
In a preferred embodiment, described gas injects and is provided with sealing filament between needle tubing and the diapire of described metal kettle
Stifled.
In a preferred embodiment, described solenoid is semicircle.
In a preferred embodiment, described solenoid outer cladding waterproof layer.
The present invention also provides for a kind of using method rising bubble instrument as above, wherein, the described using method rising bubble instrument
Comprise the steps:
Step a: by the first pump in metal kettle be full of water until the pressure in described metal kettle is the first setting pressure,
Set pressure by described first pump with second again in glass infuser, inject crude oil, and in described glass infuser, form profit circle
Face, described second sets pressure sets pressure more than described first；
Step b: setting pressure by the second pump with the 3rd and pump into gas to gas injection needle tubing, the described 3rd sets pressure
Set pressure more than described first and set pressure less than described second；
Step c: open controller, makes two solenoids produce alternate electromagnetic field, until described gas injects needle tubing
The bubble that needle end produces departs from described needle end under the effect of alternate electromagnetic field, is then turned on photographic head and carries out record.
Preferably, in described step a, described oil-water interfaces are positioned at the top that described gas injects the needle end of needle tubing.
Preferably, in described step a, described second sets the first setting pressure height 0.05Mpa described in pressure ratio.
Preferably, in described step b, the described 3rd sets the first setting pressure height 0.02Mpa described in pressure ratio.
Preferably, between described step b and described step c, also include step b1, when described gas injects the pin of needle tubing
When macroscopic bubble occurs in head end, stop described second pump.
The liter of the present invention steeps instrument and the feature of using method thereof and advantage is:
1, injecting offer power by the first pump for fluid, it sets pressure with first and injects water in metal kettle, makes gold
Belong to still and environment under high pressure is provided, and inject former by the first pump in glass infuser with the second setting pressure setting pressure higher than first
Oil, makes crude oil and water generate oil-water interfaces in glass infuser, and the analysis for oil gas mixed phase provides simulated environment；
2, by the second pump to set pressure higher than first and to set pressure to gas less than the 3rd of the second setting pressure
Inject and needle tubing injects gas, until macroscopic bubble occurs in the needle end that gas injects needle tubing, it is ensured that Air Bubble Size
Concordance, the stroke making bubble pass by crude oil is essentially identical, conveniently carries out quantitative analysis；
3, by arranging solenoid at the monosymmetric of glass infuser, make between two solenoids, to produce alternately electromagnetism
Field action, in needle end, makes needle end shake, and then control bubble comes off, and makes bubble come off controlled, it is ensured that in the same size
Bubble in time, in the crude oil that smoothly enters in glass infuser, and carry out Taking Pictures recording by photographic head, to realize bubble former
The analysis of metamorphosis in oil, determines the value of oil gas minimum miscibility pressure (MMP)；
Present invention achieves at different temperatures and pressures, make the bubble of the needle end of gas injection needle tubing come off in time
Enter in the crude oil in glass infuser and rise, it is ensured that Air Bubble Size is consistent, and bubble comes off controlled, it is ensured that the concordance of test
And repeatability, improve measuring accuracy, eliminate personal error, solve liter Air Bubble Size during bubble and differ and cause calculating
The difficult problem that results change is bigger, shortens the measurement time, can provide for the oil gas miscible displacement of reservoir mode large-scale application in oil field
Strong technical support and reference data, and then improve oil recovery.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation rising bubble instrument of the present invention；
Fig. 2 is the flow chart of the using method rising bubble instrument of the present invention.
Drawing reference numeral illustrates:
1 light source body, 2 metal kettle, 3 glass infusers, 4 crude oil, 5 water, 6 oil-water interfaces, 7 first seal plug, 8 first electromagnetic wires
Circle, 9 the 3rd sealing plugs, 10 second pumps, 11 end covers, 12 first pumps, 13 photographic head, 14 second sealing plugs, 15 second
Solenoid, 16 bubbles, 17 gases inject needle tubing, 18 controllers, 19 electric wires, 20 tubing strings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Embodiment one:
As it is shown in figure 1, the present invention provides a kind of bubble instrument that rises, wherein, the described bubble instrument that rises includes: metal kettle 2, its side is along perpendicular
Nogata is to being provided with multiple photographic head 13, and its opposite side is provided with the light source body 1 relative with multiple described photographic head 13；Glass infuser 3, its
Being positioned at described metal kettle 2, the upper end of described glass infuser 3 is fixedly arranged on the roof of described metal kettle 2 and is connected with the first pump 12, institute
The lower end stating glass infuser 3 is opening, and described glass infuser 3 is connected with described metal kettle 2 by described opening；Gas injects needle tubing
17, its backshank end and the second pump 10 are connected, and its needle end stretches in described glass infuser 3 through the diapire of described metal kettle 2；Two
Solenoid, described solenoid is connected with controller 18, and two described solenoids are positioned at described metal kettle 2 symmetrically
Being located at the both sides of described glass infuser 3, described solenoid injects the needle end level of relative of needle tubing 17 with described gas.
Concrete, metal kettle 2 can be cylindrical shape or cuboid etc., and glass infuser 3 is cylindrical shape, and metal kettle 2 and glass
It is transparent that cylinder 3 is, to provide the viewing area observing bubble shape change, by light source body 1 energy being positioned at outside metal kettle 2
Illumination is positioned at the glass infuser 3 of metal kettle 2, and then records the mobile offer transmission light of bubble 16 in glass infuser 3 for photographic head 13
Source, light source body 1 therein can be one, it is also possible to multiple for vertically arrange, and multiple light source body 1 can be with multiple
Photographic head 13 one_to_one corresponding is arranged, and to provide more fully illuminating effect, photographic head 13 can also be according to the need of shooting record
Its quantity is set, does not limits at this；In one embodiment, the bubble instrument of the present invention can be positioned over constant-temperature air bath device
In, the temperature conditions needed for test offer is provided.
Further, the roof of described metal kettle 2 is provided with end cover 11, and described glass infuser 3 is fixedly arranged on described sealed end
Lid 11, described glass infuser 3 is connected with described first pump 12 by described end cover 11, and concrete, metal kettle 2 is airtight,
End cover 11 is tightly located at the central authorities of the roof of metal kettle 2, to ensure the sealing of metal kettle 2, end cover 11 plugs tubing string
20, one end of tubing string 20 is connected with the first pump 12 being positioned at outside metal kettle 2, the other end of tubing string 20 be connected to end cover 11
Glass infuser 3 intracavity inter-connection of lower section, to realize indirectly being injected in metal kettle 2 water 5 by glass infuser 3, it is achieved in metal kettle 2
Environment under high pressure, in the glass infuser 3 being immersed in environment under high pressure, directly injected crude oil 4 simultaneously by the first pump 12, certainly manage
Post 20 also can be provided with branch's tubing string, with direct and metal kettle 2 intracavity inter-connection by branch's tubing string, does not limits at this.
Further, described solenoid is semicircle, the most each solenoid include a semicircle limit and one open
Mouthful, two solenoids are respectively the first solenoid 8 and the second solenoid 15, the first solenoid 8 uncovered with second
The uncovered both sides being oppositely disposed at glass infuser 3 of solenoid 15, and the needle end simultaneously injecting needle tubing 17 with gas is relative,
The centre on the semicircle limit of the first solenoid 8 connects live wire 19, and electric wire 19 passes the sidewall of metal kettle 2 and is connected to control
Device 18 processed, the second solenoid 15 passes the sidewall of metal kettle 2 also by electric wire 19 and is connected to controller 18 simultaneously, makes control
Device 18 the most individually controls two solenoids and produces alternate electromagnetic field, so that the first solenoid 8 and the second electromagnetism
The alternate electromagnetic field formed between coil 15 acts on needle end, makes needle end shake, and then makes the bubble 16 of needle end
Depart from；Wherein, described solenoid outer cladding waterproof layer, this waterproof layer can be teflon coatings, the most also can be to solenoid
Carry out other water-proofing treatment, to prevent from solenoid water in metal kettle 2 occurs leaky, be contemporaneously immersed in metal kettle 2
Interior electric wire 19 also can make water-proofing treatment, such as, be coated with waterproof layer.
Further, described gas injects and is provided with the 3rd sealing plug 9 between needle tubing 17 and the diapire of described metal kettle 2,
To ensure that gas injection needle tubing 17 will not leak with the contact position of metal kettle 2, meanwhile, connect the first solenoid 8 and control
The electric wire 19 of device 18 processed is arranged with the first sealing plug 7 when through metal kettle 2, connects the second solenoid 15 and controller 18
Electric wire 19 when through metal kettle 2, be arranged with the second sealing plug 14, with realize seal, it is ensured that the high compression ring in metal kettle 2
Border, it is to avoid the water in metal kettle 2 leaks, causes the stroke in bubble 16 uphill process different, makes oil gas minimum mixed phase pressure
Power test is inaccurate.
Present invention achieves at different temperatures and pressures, make the bubble 16 of needle end of gas injection needle tubing 17 according to wanting
The size asked departs from, and departs from controlled, and bubble is in the same size, keeps concordance and the repeatability of experiment, test essence
Degree height.
Embodiment two:
The present invention provides a kind of using method rising bubble instrument as described in embodiment 1, the liter bubble instrument in this embodiment
Identical with the structure of embodiment one, operation principle and beneficial effect, do not repeat them here.As in figure 2 it is shown, described liter steeps instrument
Using method comprises the steps:
Step a: be full of water 5 in metal kettle 2 until the pressure in described metal kettle 2 is the first setting by the first pump 12
Pressure, then in glass infuser 3, inject crude oil 4, and shape in described glass infuser 3 by described first pump 12 with the second setting pressure
Becoming oil-water interfaces 6, described second sets pressure sets pressure more than described first；
Step b: setting pressure by the second pump 10 with the 3rd and pump into gas to gas injection needle tubing 17, the described 3rd sets
Pressure sets pressure and sets pressure less than described second more than described first；
Step c: open controller 18, makes two solenoids produce alternate electromagnetic field, until described gas injects needle tubing
The bubble 16 that the needle end of 17 produces departs from described needle end under the effect of alternate electromagnetic field, is then turned on photographic head 13 and remembers
Record.
Concrete, before on-test, i.e. before described step a, by the power on of all devices, by a liter bubble instrument
The outside constant-temperature air bath device arranged arranges the test temperature of needs, then the working media of the first pump 12 is set to water,
In metal kettle 2, inject the pressure in water 5 to metal kettle 2 by the first pump 12 and reach the first setting pressure, then by the first pump 12
Working media be replaced by crude oil, and the first pump 12 is set as constant voltage mode, makes the first pump 12 to set pressure higher than first
Second setting pressure in glass infuser 3, inject crude oil 4 to oil-water interfaces 6, stop the injection in metal kettle 2 of first pump 12,
Then open the second pump 10, make the second pump 10 set pressure with the 3rd and inject injection gas, such as CO in needle tubing 17 to gas2Or
N2, then open controller 18, make the first solenoid 8 and the second solenoid 15 produce electromagnetic field alternately, and act on
Needle end makes it shake, and makes the bubble 16 of needle end come off in vibration, stop control 18, certainly, if bubble 16 does not has
Come off, can be by adjusting controller 18, to increase by the first solenoid 8 and magnetic field intensity of the second solenoid 15, until
The bubble 16 of needle end departs from stop control 18 again, opens photographic head 13 the most immediately, and the rising of Real-time Collection bubble 16 is straight
To the image disappeared, the rising of multiple bubble 16 can be recorded by test of many times, by the form of multiple bubbles 16 of record
Change, determines oil gas minimum miscibility pressure (MMP).
Further, in described step a, described oil-water interfaces 6 are positioned at the needle end of described gas injection needle tubing 17
Top, it is to avoid the high pressure of crude oil 4 hinders the abjection of bubble 16, also avoid the bubble 16 instability just when needle end is taken off and
Cause test inaccurate.
Further, described second sets the first setting pressure height 0.05Mpa described in pressure ratio, to ensure that crude oil can be smoothly
Inject in the glass infuser 3 with high pressure, and make crude oil 4 exist only in glass infuser 3, without the lower ending opening from glass infuser 3
Flow out；Further, in described step b, the described 3rd sets the first setting pressure height 0.02Mpa described in pressure ratio, and
Than the second setting low 0.03Mpa of pressure, make gas inject the gas in needle tubing 17 both will not because of metal kettle 2 inner high voltage environment nothing
Method enters glass infuser 3, also gas will be caused promptly to enter because gas injects needle tubing 17 pressure reduction the biggest with in metal kettle 2
Glass infuser 3, more will not produce lifting power to the bubble 16 uphill process in crude oil 4, makes gas inject the gas in needle tubing 17
The bubble 16 that body produces in needle end is deviate from controlled, and when bubble 16 rises in crude oil 4, stroke is basically identical, it is ensured that test
The concordance of data and repeatability.
Further, between described step b and described step c, also include step b1, when described gas injects needle tubing 17
Needle end time macroscopic bubble 16 occurs, stop described second pump 10, the bubble 16 making generation in process of the test is big
Little unanimously, it is to avoid the second pump 10 is always on and injects in needle tubing 17 to gas and injects gas always and cause bubble 16 to become big, enters
And cause the bubble 16 in test not of uniform size, affect measuring accuracy and accuracy.
The liter of the present invention steeps instrument and the feature of using method thereof and advantage is:
1, injecting offer power by the first pump 12 for fluid, it sets pressure with first and injects water 5 in metal kettle 2,
Metal kettle 2 is made to provide environment under high pressure, and by the first pump 12 to set the second setting pressure of pressure higher than first to glass infuser 3
Interior injection crude oil, makes crude oil 4 and water 5 generate oil-water interfaces 6 in glass infuser 3, and the analysis for oil gas mixed phase provides simulated environment；
2, by the second pump 10 to set pressure higher than first and to set pressure to gas less than the 3rd of the second setting pressure
Body injects and injects gas in needle tubing 17, until macroscopic bubble 16 occurs in the needle end that gas injects needle tubing 17, it is ensured that gas
Steeping the concordance of 16 sizes, the stroke making bubble 16 pass by crude oil 4 is essentially identical, conveniently carries out quantitative analysis；
3, by arranging solenoid at the monosymmetric of glass infuser 3, make between two solenoids, to produce alternately electricity
The action of a magnetic field, in needle end, makes needle end shake, and then control bubble 16 comes off, and makes bubble 16 come off controlled, it is ensured that big
In the crude oil 4 that little consistent bubble 16 is timely, smoothly enter in glass infuser 3, and carry out Taking Pictures recording by photographic head 13, with
Realize bubble 16 analysis of metamorphosis in crude oil, determine the value of oil gas minimum miscibility pressure (MMP)；
Present invention achieves at different temperatures and pressures, make the bubble 16 of needle end of gas injection needle tubing 17 in time
Shedding in the crude oil in glass infuser 3 and rise, it is ensured that bubble 16 is in the same size, bubble 16 comes off controlled, it is ensured that examination
The concordance tested and repeatability, improve measuring accuracy, eliminates personal error, solves bubble 16 size during liter bubble
Differ the difficult problem causing result of calculation to change greatly, and shortens the measurement time, can be big in oil field of oil gas miscible displacement of reservoir mode
Sizable application provides strong technical support and reference data, and then improves oil recovery.
The above is only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, has in any art
Generally skill, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above is made a little
Change or be modified to the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to the present invention
Technical spirit any simple modification, equivalent variations and modification that above example is made, all still fall within the technology of the present invention side
In the range of case.
Claims (10)
1. one kind rises bubble instrument, it is characterised in that described liter bubble instrument includes:
Metal kettle, its side is vertically provided with multiple photographic head, and its opposite side is provided with relative with multiple described photographic head
Light source body；
Glass infuser, it is positioned at described metal kettle, and the upper end of described glass infuser is fixedly arranged on the roof of described metal kettle and with first
Pump is connected, and the lower end of described glass infuser is opening, and described glass infuser is connected with described metal kettle by described opening；
Gas injects needle tubing, its backshank end and the second pump and is connected, and its needle end stretches into described glass through the diapire of described metal kettle
In glass cylinder；
Two solenoids, described solenoid is connected with controller, and two described solenoids are positioned at described metal kettle also
Being located at the both sides of described glass infuser symmetrically, described solenoid injects the needle end level of relative of needle tubing with described gas.
The most according to claim 1 liter steeps instrument, it is characterised in that the roof of described metal kettle is provided with end cover, described
Glass infuser is fixedly arranged on described end cover, and described glass infuser is connected with described first pump by described end cover.
The most according to claim 1 liter steeps instrument, it is characterised in that described gas injects the diapire of needle tubing and described metal kettle
Between be provided with sealing plug.
The most according to claim 1 liter steeps instrument, it is characterised in that described solenoid is semicircle.
The most according to claim 1 liter steeps instrument, it is characterised in that described solenoid outer cladding waterproof layer.
6. the using method rising bubble instrument as according to any one of Claims 1 to 5, it is characterised in that described liter bubble instrument
Using method comprise the steps:
Step a: be full of water in metal kettle until the pressure in described metal kettle is the first setting pressure by the first pump, then lead to
Cross described first pump and in glass infuser, inject crude oil with the second setting pressure, and in described glass infuser, form oil-water interfaces, institute
State the second setting pressure and set pressure more than described first；
Step b: setting pressure by the second pump with the 3rd and pump into gas to gas injection needle tubing, the described 3rd sets pressure is more than
Described first sets pressure and sets pressure less than described second；
Step c: open controller, makes two solenoids produce alternate electromagnetic field, until described gas injects the syringe needle of needle tubing
The bubble that end produces departs from described needle end under the effect of alternate electromagnetic field, is then turned on photographic head and carries out record.
The using method rising bubble instrument the most according to claim 6, it is characterised in that in described step a, described profit circle
Face is positioned at the top that described gas injects the needle end of needle tubing.
The using method rising bubble instrument the most according to claim 6, it is characterised in that in described step a, described second sets
Constant-pressure sets the high 0.05Mpa of pressure than described first.
The using method rising bubble instrument the most according to claim 8, it is characterised in that in described step b, the described 3rd sets
Constant-pressure sets the high 0.02Mpa of pressure than described first.
The using method rising bubble instrument the most according to claim 6, it is characterised in that in described step b and described step c
Between also include step b1, when described gas inject needle tubing needle end occur macroscopic bubble time, stop described second
Pump.
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| CN106124118B (en) | 2018-12-28 |
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