CN105043936B - It is a kind of to simulate oil reservoir conditioned measurement contact angle and the device and method of interfacial tension - Google Patents
It is a kind of to simulate oil reservoir conditioned measurement contact angle and the device and method of interfacial tension Download PDFInfo
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Abstract
The present invention relates to a kind of in simulation oil reservoir conditioned measurement contact angle and the device and method of interfacial tension.Mainly solve the problems, such as in the prior art without the apparatus and method that can simulate subsurface deposit conditioned measurement contact angle and interfacial tension.It is characterized in that：The device includes oil gas water injected system A, HTHP storehouse system B, automatically controls record system C；The oil gas water injected system A includes oil storage pump, water storage pump, gas storage pump, and the oil storage pump, water storage pump, gas storage pump bottom connect motor respectively, and top connects threeway respectively；The HTHP storehouse system B includes the outside high temperature-pressure sample pond that high pressure form is housed equipped with annular electric heating cover, both sides；It is described to automatically control record system C, including video camera, computer, light source.This can be with the interfacial tension of real simulation subsurface deposit conditioned measurement rock and crude oil, the contact angle of water or oil displacement agent and crude oil and water or oil displacement agent in simulation oil reservoir conditioned measurement contact angle and the device and method of interfacial tension.
Description
Technical field
It is especially a kind of at simulation oil reservoir conditioned measurement contact angle and interface the present invention relates to oil-gas field development technical field
The device and method of tension force.
Background technology
Wetting action and interfacial tension are widely present in human lives and industrial production, as mechanical lubrication, oil field development,
Washing, flotation and cleaning etc., furtheing investigate the wetability of the surface of solids and interfacial tension has certain theory and application value.
In oil-gas field development field, wetability and interfacial tension are to determine the principal element of fluid distrbution and flow regime in oil reservoir,
Wetability and interfacial tension can also influence capillary pressure, relative permeability, remaining oil saturation, water drive and chemical flooding effect
Deng.Contact angle is to characterize that rock wettability is the most frequently used and most straightforward approach.At present on contact angle and interfacial tension measurement dress
Put with method known in document, most of is all that contact angle and interfacial tension are measured under normal temperature and pressure conditionses, without energy
The apparatus and method for enough simulating subsurface deposit conditioned measurement contact angle and interfacial tension.
The content of the invention
The invention reside in overcoming problem present in background technology, and provide a kind of in simulation oil reservoir conditioned measurement contact angle
With the device of interfacial tension.The device can connecing with real simulation subsurface deposit conditioned measurement rock and crude oil, water or oil displacement agent
The interfacial tension of feeler and crude oil and water or oil displacement agent.Present invention also offers one kind simulation oil reservoir conditioned measurement contact angle and
The method of interfacial tension.
The present invention, which solves its problem, to be reached by following technical solution：One kind simulation oil reservoir conditioned measurement contact angle and
The device of interfacial tension, including oil gas water injected system A, HTHP storehouse system B, automatically control record system C；
The oil gas water injected system A includes three micro pumps, respectively oil storage pump, water storage pump, gas storage pump, the oil storage
Pump, water storage pump, gas storage pump bottom are connected with motor a, motor b, motor c respectively, and three micro pumps can act in motor
Under do cyclic movement；The oil storage pump, water storage pump, gas storage pump top connect threeway a, threeway b, threeway c respectively；Described three
Logical a, threeway b, threeway c one end connect pressure sensor a, pressure sensor b, pressure sensor c, the threeway a, threeway respectively
B, threeway c other ends difference connecting pipeline a, line b, line c, the pipeline a, line b, nearly three go side connects respectively in line c
There are valve a, valve b, valve c, the pipeline a, line b, line c and HTHP storehouse system B valve d, valve e, valve d
It is connected；
The HTHP storehouse system B includes outside high equipped with the high temperature of annular electric heating cover, both sides equipped with high pressure form
Sample cell, high temperature-pressure sample bottom of pond portion connection magnetic stirring apparatus are pressed, high temperature-pressure sample pond inside upper and lower side has exhaust convex
Groove and discharge opeing concave groove, discharge opeing concave groove and exhaust concave slot internal end surface are provided with porous plate, and exhaust concave slot internal end surface is more
Orifice plate bottom is equipped with specimen holder, and rock sample is equipped with specimen holder, and high temperature-pressure sample pond upper and lower side is divided by sleeve pipe a, sleeve pipe b
Not Lian Jie four-way a, four-way b, the four-way a difference connecting pipelines b, pipeline e, pipeline d, four-way b difference connecting pipeline f, pipeline
G, pipeline h；The line b, pipeline e, pipeline d, pipeline f, pipeline g, valve e, valve f, valve g, valve are connected to respectively on pipeline h
Door h, valve i, valve d；The pipeline e terminations are connected to gas and receive container, and pipeline g terminations are connected to Liquid acquisition container；It is described
Pipeline d is connected by valve g with pressure sensor d, and pipeline d is connected by valve j with multifunctional color spectrometer, and pipeline f passes through valve
Door h is connected with multifunctional color spectrometer；The sample introduction needle enters high temperature-pressure sample pond by four-way b and sleeve pipe b；The pipeline h
Nearly four-way b ends are connected with sample introduction needle, and the pipeline h other ends are connected by valve d with pipeline a, line c, and valve described above is
Electric control valve；
It is described to automatically control record system C, including video camera, computer, light source, the computer and light source and video camera
It is connected, light source is respectively placed in the high pressure form both ends in high temperature-pressure sample pond with video camera, and computer control video camera is clapped in real time
The contact angle of rock sample or the interfacial tension image of crude oil are taken the photograph, computer disposal image, obtains contact angle or interfacial tension；Institute
State pressure sensor a, pressure sensor b, pressure sensor c, pressure sensor d, motor a, motor b, motor c, magnetic agitation
Device, electric heating cover, valve, oil gas water injected system A, HTHP storehouse system B are connected with computer respectively.
A kind of measurement device contact angle and interfacial tension using simulation oil reservoir conditioned measurement contact angle and interfacial tension
Method, comprise the following steps：
（1）Oil-water-gas is respectively charged into oil storage pump 1, water storage pump 2, gas storage pump 3, water storage pump 2 passes through line b 14, valve
B28 is connected with valve e42, and oil storage pump 1 is connected by pipeline a13, valve a27 with valve d41；Or gas storage pump 3 passes through pipeline
C15, valve c29 are connected with valve d41；
（2）Power-on, water-oil-gas system A and HTHP storehouse system B temperature is set by computer 16, open light
Source 48 and video camera 47；
（3）The control valve a27 of computer 16, valve d41 are opened, and by the controlled motor a4 of computer 16, oil is passed through pipe
Line a13 enters high temperature-pressure sample pond 23, oil droplet occurs when video camera 47 shoots the port of sample introduction needle 17, stops motor a4, close
Valve a27, valve d41；Or the control valve c29 of computer 16, valve d41 are opened, and high pressure gas is entered high temperature by line c 15
High pressure sample pond 23, close valve c29, valve d41；
（4）Rock sample to be measured is placed on the specimen holder 18 in high temperature-pressure sample pond 23, magnetic bar is placed on HTHP
In sample cell on 23 bottom perforated plates 20, good seal high temperature-pressure sample pond 23, electric heating cover 26 is set by computer 16
Temperature；
（5）The control valve b28 of computer 16, valve e42, valve g44 are opened, and by the controlled motor b5 of computer 16, are made
Water enters high temperature-pressure sample pond 23 by line b 14, opens valve f43, enters the gas in high temperature-pressure sample pond 23
Gas receives container 30, treats that pipeline e36 terminations there are flowing out, and closes valve f43, continues to be pressurized to experimental pressure, stops motor
B5, close valve b28, valve e42；Before measuring or in measurement process, HTHP can be stirred by magnetic stirring apparatus 25
Solution in sample cell 23；
（6）The controlled motor a4 of computer 16 pressurizes to oil storage pump 1, when pressure sensor a10 pressure and pressure sensor
When d24 is identical, the control valve a27 of computer 16, valve d41 are opened, computer 16 according to the image of the captured in real-time of video camera 47,
Oil is entered an oil dripping by sample introduction needle 17 by controlled motor a4 and float, stop motor a4, close valve a27, valve
d41；Or the controlled motor c6 of computer 16 pressurizes to gas storage pump 3, when pressure sensor c12 pressure and pressure sensor d24 phases
Meanwhile valve c29, valve d41 are opened, computer 16 is made according to the image of the captured in real-time of video camera 47 by controlled motor a4
Oil enters a bubble by sample introduction needle 17 and floated, and stops motor c6, closes valve c29, valve d41；
（7）Computer 16 controls the shooting of video camera 47 record oil droplet or bubble to be calculated by software in rock surface shape
Contact angle of the oily or gas in rock surface；Or the controlled motor a4 of computer 16 makes oil or forms an oil droplet in the end of sample introduction needle 17,
Computer 16 controls the shape of the shooting record end oil droplet of sample introduction needle 17 of video camera 47, and the interfacial tension of oil is calculated by software；
Or the controlled motor a4 of computer 16 makes micro oil storage pump 1 do periodic motion, the oil droplet of the end of sample introduction needle 17 is set periodically to expand, contracting
Small, viscoelastic is expanded at the interface that computer 16 is worth to oil by calculating the ratio of interfacial tension change and relative interface area change
Property.
（8）Measurement terminates, and closes the heater of water-oil-gas system A, HTHP storehouse system B and electric heating cover 26；Beat
Valve opening door i46, liquid is set to enter Liquid acquisition container 31, computer 16 is by controlled motor and valve to high temperature-pressure sample pond
23 are cleaned automatically.
It is of the invention to be had the advantages that compared with above-mentioned background technology：Present invention simulation oil reservoir conditioned measurement connects
The device of feeler can be in the original saturation state of temperature, pressure, rock of true oil reservoir（That is virgin rock wetability）Lower measurement
The interfacial tension of the contact angle and crude oil of rock and fluid and water or oil displacement agent.Once mounting sample, can obtain it is a series of not
With the contact angle under pressure, interfacial tension and Interfacial dilational viscoelasticity parameter.Plant automation degree is high, control accuracy is high, again
Renaturation is good, interference from human factor is small, automatic cleaning, labor workload are low.Various reservoir conditions can be simulated, are led in oil field development
Had broad application prospects in domain.
Brief description of the drawings：
Accompanying drawing 1 is present system structural representation；
Accompanying drawing 2 is high temperature-pressure sample pond of the present invention front schematic view；
Accompanying drawing 3 is high temperature-pressure sample pond of the present invention front section view；
Accompanying drawing 4 is high temperature-pressure sample pond of the present invention side sectional view.
In figure：1- oil storages pump, 2- water storage pumps, 3- gas storage pumps, 4- motor a, 5- motor b, 6- motor c, 7- threeways a, 8- tri-
Logical b, 9- threeway c, 10- pressure sensor a, 11- pressure sensor b, 12- pressure sensor c, 13- pipeline a, 14- line b,
15- line cs, 16- computers, 17- sample introduction needles, 18- specimen holders, 19- high pressures form, 20- porous plates, 21- sleeve pipe a, 22- sleeve pipes
B, 23- high temperature-pressure samples pond, 24- pressure sensor d, 25- magnetic stirring apparatus, 26- electric heating covers, 27- valve a, 28- valves
Door b, 29- valve c, 30- gas receive container, 31- Liquid acquisitions container, 32- four-way a, 33- four-way b, 34- discharge opeing matrixs
Groove, 35- pipeline d, 36- pipeline e, 37- pipeline f, 38- pipelines g, 39- exhaust concave slot, 40- pipeline h, 41- valve d, 42- valves
Door e, 43- valve f, 44- valve g, 45- valve h, 46- valve i, 47- video camera, 48- light sources, 49- multifunctional color spectrometers, 50-
Valve j, A- oil gas water injected system, B- HTHPs storehouse system, C- automatically control record system.
Embodiment：
The invention will be further described below in conjunction with the accompanying drawings：
Accompanying drawing 1 is a kind of in subsurface deposit conditioned measurement contact angle and the device of interfacial tension, including oil with reference to shown in Fig. 2
Air water injected system A, HTHP storehouse system B, automatically controls record system C.
The oil gas water injected system A includes three micro pumps, respectively oil storage pump 1, water storage pump 2, gas storage pump 3, described
Oil storage pump 1, water storage pump 2, the bottom of gas storage pump 3 are connected with motor a4, motor b5, motor c6 respectively, and three micro pumps are in electricity
Cyclic movement can be done under machine effect, three micro pump capacities are 44mL（A diameter of 1cm）Or 83mL（A diameter of 2cm）,
The control accuracy of sampling volume is high；The oil storage pump 1, water storage pump 2, the top of gas storage pump 3 connect threeway a7, threeway b8, three respectively
Logical c9；The threeway a7, threeway b8, threeway c9 one end connect pressure sensor a10, pressure sensor b11, pressure sensing respectively
Device c12, the threeway a7, threeway b8, threeway c9 other ends difference connecting pipeline a13, line b 14, line c 15, the pipeline
A13, line b 14, nearly three go side is connected to valve a27, valve b28, valve c29, the pipeline a13, pipeline respectively in line c 15
B14, line c 15 are connected with HTHP storehouse system B valve d41, valve e42, valve d41.
As shown in accompanying drawing 2, Fig. 3, Fig. 4, the HTHP storehouse system B includes outside and annular electric heating cover 26, two is housed
Side is equipped with the high temperature-pressure sample pond 23 of high pressure form 19, the temperature of the electric heating cover 26 can control 21 DEG C, 37 DEG C, 53
DEG C, 87 DEG C, 113 DEG C, 147 DEG C, 176 DEG C, 191 DEG C, high pressure form 19 and high temperature-pressure sample pond 23 can pressure-resistant 9 MPa,
19MPa, 34MPa, 56MPa, 73MPa, 91MPa, different reservoir conditions can be simulated.The bottom of high temperature-pressure sample pond 23 connects magnetic
Power agitator 25, the inside upper and lower side of high temperature-pressure sample pond 23 have exhaust concave slot 39 and discharge opeing concave groove 34, discharge opeing concave groove
34 are provided with porous plate 20 with the exhaust internal end surface of concave slot 39, and the bottom of 39 internal end surface porous plate of exhaust concave slot 20 is equipped with sample
Specimen holder 18 is placed on frame 18, or the top of 34 internal end surface porous plate of discharge opeing concave groove 20, is equipped with rock sample on specimen holder 18, institute
State the internal end surface porous plate 20 of discharge opeing concave groove 34 and magnetic bar is placed above, under the effect of magnetic stirring apparatus 25, in HTHP
State magnetic force rod can be stirred to the liquid in high temperature-pressure sample pond 23, avoided precipitation from occurring, ensure that and tested
The uniformity of liquid in journey, bottom perforated plate 20 provide stable rotatable platform for magnetic bar.The exhaust concave slot 39 can
So that the gas or upper liquid in high temperature-pressure sample pond 23 exclude totally completely, discharge opeing concave groove 34 can make HTHP
Lower liquid in sample cell 23 excludes totally, to improve the accuracy of experiment completely.
The upper and lower side of high temperature-pressure sample pond 23 connects four-way a32, four-way b33 respectively by sleeve pipe a21, sleeve pipe b22, described
Four-way a32 difference connecting pipelines b14, pipeline e36, pipeline d35, four-way b33 difference connecting pipeline f37, pipeline g38, pipeline
h40；The line b 14, pipeline e36, pipeline d35, pipeline f37, pipeline g38, valve e42, valve are connected to respectively on pipeline h40
F43, valve g44, valve h45, valve i46, valve d41；The pipeline e36 terminations are connected to gas and receive container 30, pipeline g38
Termination is connected to Liquid acquisition container 31；The pipeline d35 is connected by valve g44 with pressure sensor d24, and pipeline d35 passes through
Valve j50 is connected with multifunctional color spectrometer 49, and pipeline f37 is connected by valve h45 with multifunctional color spectrometer 49；Multi-functional chromatogram
Instrument 49 can be with the gas or the component of liquid in real-time online measuring high temperature-pressure sample pond 23.The sample introduction needle 17 passes through four-way
B33 and sleeve pipe b22 enters high temperature-pressure sample pond 23, or sample introduction needle 17 enters HTHP sample by four-way a32 and sleeve pipe a21
Product pond 23；The nearly four-way b33 ends of pipeline h40 are connected with sample introduction needle 17, and the pipeline h40 other ends pass through valve d41 and pipeline
A13, line c 15 are connected.Valve described above is electric control valve.
It is described to automatically control record system C, including video camera 47, computer 16, light source 48, the computer 16 and light source
48 are connected with video camera 47, and light source 48 is respectively placed in the both ends of high pressure form 19 in high temperature-pressure sample pond 23, institute with video camera 47
State pressure sensor a10, pressure sensor b11, pressure sensor c12, pressure sensor d24, motor a4, motor b5, motor
C6, magnetic stirring apparatus 25, electric heating cover 26, valve, oil gas water injected system A, HTHP storehouse system B respectively with computer 16
Connection.The image that computer 16 is shot according to video camera 47, the size entered by motor and Valve controlling oil droplet or bubble are real
Existing sample introduction automation, avoids the error that human factor is brought, and ensure that experiment tool repeatability, while makes measurement more accurate,
Also reduce workload.Computer 16 handles the contact angle of rock sample or the interfacial tension figure of crude oil that video camera 47 photographs
Picture, obtain contact angle or interfacial tension；The computer 16 can make micro pump do periodic motion, the end of sample introduction needle 17 with controlled motor
The drop period in portion is expanded or shunk, and droplet interfaces is also occurred therewith by periodic compression and expansion, its interfacial tension
Cyclically-varying, the ratio by calculating interfacial tension change and relative interface area change can obtain interface and expand viscoelastic
Property.
Computer 16 can be cleaned automatically by controlled motor and valve to high temperature-pressure sample pond 23, according to more work(
Energy chromatograph 49 judges the testing result of gas or liquid component the whether clean of cleaning, if unclean, can carry out again
Secondary cleaning is untill reaching requirement of experiment.It is such to design the accuracy and automaticity for improving experiment, reduce people
Work workload.
The water-oil-gas system A and HTHP storehouse system B temperature can be controlled at 21 DEG C, 37 DEG C, 53 DEG C, 87 DEG C,
Experimental pressure can be controlled in 9 MPa, 19MPa, 34MPa, 56MPa, 73MPa, 91MPa.
The rock sample is natural core, artificial core, quartz plate, mica.The oil is alkane, simulation oil, crude oil；
The gas is air, natural gas, carbon dioxide, nitrogen；The water is deionized water, salt solution, oil field extracted water, oil field injection
Water, displacement of reservoir oil agent solution.
The present invention is using under a kind of simulation oil reservoir conditioned measurement contact angle and interfacial tension measurement device reservoir condition
The method of contact angle and interfacial tension is divided into following several, is described as follows：
Embodiment 1：In the presence of measurement has water, oil and rock contact angle and the method for the interfacial tension of oil.
（b1）Oil, water are respectively charged into micro oil storage pump 1, water storage pump 2, oil storage pump 1 by pipeline a13 and valve a27,
Valve d41 is connected, and water storage pump 2 is connected by line b 14 with valve b28, valve e42.
（b2）Power-on, water-oil-gas system A and HTHP storehouse system B temperature is set by computer 16, opened
Light source 48 and video camera 47.
（b3）The control valve a27 of computer 16, valve d41 are opened, and by the controlled motor a4 of computer 16, oil is passed through pipe
Line a13 enters high temperature-pressure sample pond 23, oil droplet occurs when video camera 47 photographs the port of sample introduction needle 17, stops motor a4, close
Valve closing door a27, valve d41.
（b4）Rock sample to be measured is placed on the specimen holder 18 in high temperature-pressure sample pond 23, magnetic bar is placed on HTHP
On the bottom perforated plate 20 of sample cell 23, good seal high temperature-pressure sample pond 23, pass through the temperature of the setting electric heating cover 26 of computer 16
Degree.
（b5）The control valve b28 of computer 16, valve e42, valve g44 are opened, and by the controlled motor b5 of computer 16, are made
Water enters high temperature-pressure sample pond 23 by line b 14, opens valve f43, enters the gas in high temperature-pressure sample pond 23
Gas receives container 30, treats that pipeline e36 terminations there are flowing out, and closes valve f43；Continue to be pressurized to experimental pressure, stop motor
B5, close valve b28, valve e42；Before measuring or in measurement process, HTHP can be stirred by magnetic stirring apparatus 25
Solution in sample cell 23.
（b6）The controlled motor a4 of computer 16 pressurizes to oil storage pump a1, when pressure sensor a10 pressure and pressure sensing
When device d24 is identical, the control valve a27 of computer 16, valve d41 are opened, and contrast control is carried out to pressure by pressure sensor
It can ensure that the reclaimed water of high temperature-pressure sample pond 23 will not should be high flow backwards of pressure and enter oil storage pump a1, simultaneously, it is ensured that oil droplet sample introduction
Steadily, the oil droplet for avoiding the end of sample introduction needle 17 persistently occurs without or continuously entered more oil dripping phenomenons.Computer 16 is according to shooting
The image of the captured in real-time of machine 47, oil is entered an oil dripping by sample introduction needle 17 by controlled motor a4 and float, stop motor a4,
Close valve a27, valve d41；Oil is in water because density contrast floats to rock sample surface.Computer 16 controls video camera 47
Shooting record oil droplet is in rock surface shape, in the presence of calculating water by software, contact angle of the oil in rock surface.The table of rock
Face can be it is horizontal can also be it is inclined, i.e., Contact-angle measurement baseline can be that level can also be inclined.Contact angle
Approximating method can select as needed, and contact angle approximating method can be：The method of tangential method, θ/2, Drop Shape Analysis, oval intend
Legal, true sessile drop method.
Or the controlled motor a4 of computer 16 pressurizes to oil storage pump a1, when pressure sensor a10 pressure and pressure sensor
When d24 is identical, the control valve a27 of computer 16, valve d41 are opened, computer 16 according to the image of the captured in real-time of video camera 47,
Oil is formed an oil droplet in the end of sample introduction needle 17 by controlled motor a4, stop motor a4, close valve a27, valve d41, meter
Calculation machine 16 controls the shape of the shooting record end oil droplet of sample introduction needle 17 of video camera 47, and the interfacial tension of oil is calculated by software.
Or the controlled motor a4 of computer 16 pressurizes to oil storage pump a1, when pressure sensor a10 pressure and pressure sensor
When d24 is identical, the control valve a27 of computer 16, valve d41 are opened, computer 16 according to the image of the captured in real-time of video camera 47,
Oil is set to form an oil droplet in the end of sample introduction needle 17 by controlled motor a4, controlled motor a4 makes micro oil storage pump 1 do periodic motion,
Oil droplet is set periodically to expand, reduce, computer 16 can by calculating the ratio of interfacial tension change and relative interface area change
To obtain the Interfacial dilational viscoelasticity of oil.
After being measured, the control valve b28 of computer 16, valve e42 are opened, and motor a4 is opened, and continue to be pressurized to higher
Experimental pressure, stop motor b5, close valve b28, valve e42, or the control valve i46 of computer 16 opens discharge part
Water, pressure is reduced to lower experimental pressure, close valve i46.Measure contact angle, interfacial tension and the boundary under different pressures
Face expansion viscosity and elasticity.Once mounting sample has been achieved in that, can measure to obtain a series of contact angle under different pressures, interface
Tension force and Interfacial dilational viscoelasticity parameter, the error that installation sample is brought every time is reduced, experiment accuracy is improved, reduces
Workload.
（b7）Measurement terminates, and closes water-oil-gas system A, HTHP storehouse system B and the heating in high temperature-pressure sample pond 23
Device；Valve i46 is opened, liquid is entered Liquid acquisition container 31.Computer 16 can be to height by controlled motor and valve
Warm high pressure sample pond 23 is cleaned automatically, the testing result of gas or liquid component is judged according to multifunctional color spectrometer 49 clear
Whether that washes is clean, if unclean, can be cleaned again untill reaching requirement of experiment.
Embodiment 2：In the presence of measurement has water, gas and rock contact angle and the method for the interfacial tension of water：
（c1）Water, gas are respectively charged into micro water storage pump 2, gas storage pump 3, water storage pump 2 by line b 14, valve b28 with
Valve e42 is connected, and gas storage pump 3 is connected by line c 15, valve c29 with valve d41.
（c2）Power-on, water-oil-gas system A and HTHP storehouse system B temperature is set by computer 16, opened
Light source 48 and video camera 47.
（c3）The control valve c29 of computer 16, valve d41 are opened, and high pressure gas is entered HTHP sample by line c 15
Product pond 23, close valve c29, valve d41.
（c4）Rock sample to be measured is placed on the specimen holder 18 in high temperature-pressure sample pond 23, magnetic bar is placed on HTHP
In sample cell on 23 bottom perforated plates 20, good seal high temperature-pressure sample pond 23, electric heating cover 26 is set by computer 16
Temperature.
（c5）The control valve b28 of computer 16, valve e42, valve g44 are opened, and by the controlled motor b5 of computer 16, are made
Water enters high temperature-pressure sample pond 23 by line b 14, opens valve f43, enters the gas in high temperature-pressure sample pond 23
Gas receives container 30, treats that pipeline e36 terminations there are flowing out, and closes valve f43；Continue to be pressurized to experimental pressure, stop motor
B5, close valve b28, valve e42；Before measuring or in measurement process, HTHP can be stirred by magnetic stirring apparatus 25
Solution in sample cell 23.
（c6）The controlled motor c6 of computer 16 pressurizes to gas storage pump 3, when pressure sensor c12 pressure and pressure sensor
When d24 is identical, valve c29, valve d41 are opened, computer 16 passes through controlled motor according to the image of the captured in real-time of video camera 47
C6 makes gas enter a bubble by the end of sample introduction needle 17 and floated, and stops motor c6, closes valve c29, valve d41.Calculate
Machine 16 controls the shooting record bubble of video camera 47, and in the presence of calculating water by software, gas is in rock table in rock surface shape
The contact angle in face.
Or the controlled motor c6 of computer 16 pressurizes to gas storage pump 3, when pressure sensor c12 pressure and pressure sensor
When d24 is identical, valve c29, valve d41 are opened, computer 16 passes through controlled motor according to the image of the captured in real-time of video camera 47
C6 makes gas form a bubble by the end of sample introduction needle 17, stops motor c6, closes valve c29, valve d41.Computer 16 controls
The shape of the shooting record sample introduction needle end part bubble of video camera 47, interfacial tension is calculated by software.
Or the controlled motor c6 of computer 16 pressurizes to gas storage pump 3, when pressure sensor c12 pressure and pressure sensor
When d24 is identical, valve c29, valve d41 are opened, computer 16 passes through controlled motor according to the image of the captured in real-time of video camera 47
C6 makes gas form a bubble by the end of sample introduction needle 17, and controlled motor c6 makes micro gas storage pump 3 do periodic motion, makes bubble period
Property expand or shrink, interface can be obtained with the ratio of relative interface area change by calculating interfacial tension change by computer 16
Expansion viscosity and elasticity.
（c7）Measurement terminates, and closes water-oil-gas system A, HTHP storehouse system B and the heating in high temperature-pressure sample pond 23
Device；Valve f43 is opened, gas is entered gas and receives container 30, open valve i46, liquid is entered Liquid acquisition container
31, computer 16 can be cleaned automatically by controlled motor and valve to high temperature-pressure sample pond 23.
Embodiment 3：In the presence of measurement has gas, oil and the contact angle of rock and the method for oily interfacial tension.
（d1）Sample introduction needle 17 enters high temperature-pressure sample pond 23 by four-way a32 and sleeve pipe a21, and specimen holder 18 is placed in high temperature
The top of porous plate 20 of the bottom of high pressure sample pond 23.
（d2）By oil, gas be respectively charged into micro oil storage pump 1, gas storage pump 3, oil storage pump 1 by pipeline a13, valve a27 with
Valve f43 is connected, and gas storage pump 3 is connected by line c 15, valve c29 with valve d41, and gas receives container 30 and valve e42 phases
Even.
（d3）Power-on, water-oil-gas system A and HTHP storehouse system B temperature is set by computer 16, opened
Light source 48 and video camera 47.
（d4）The control valve a27 of computer 16, valve f43 are opened, and by the controlled motor a4 of computer 16, oil is passed through pipe
Line a13 enters high temperature-pressure sample pond 23, oil droplet occurs when video camera 47 photographs the port of sample introduction needle 17, stops motor a4, close
Valve closing door a27, valve f43.
（d5）Rock sample to be measured is placed on the specimen holder 18 in high temperature-pressure sample pond 23, good seal high temperature-pressure sample
Pond 23, the temperature of electric heating cover 26 is set by computer 16.
（d6）The control valve c29 of computer 16, valve d41, valve g44 are opened, and motor c6 is opened, and gas is passed through pipeline
C15 enters high temperature-pressure sample pond 23, high temperature-pressure sample pond 23 is raised certain pressure, and it is high to open valve e42 discharge high temperature
The gas in sample cell 23 is pressed, is repeated several times pressurization and exhaust, empties the air in high temperature-pressure sample pond 23, closes valve
E42, valve j50 is opened, computer 16 controls multifunctional color spectrometer 49 to measure the gas component in high temperature-pressure sample pond 23, point
Whether identical with gas storage pump 3 analyse gas component, if difference continues to empty, if identical be pressurized to experimental pressure, stop
Motor c6, close valve c29, valve d41.
（d7）The controlled motor a4 of computer 16 pressurizes to oil storage pump a1, when pressure sensor a10 pressure and pressure sensing
When device d24 is identical, valve a27, valve f43 are opened, computer 16 passes through control electricity according to the image of the captured in real-time of video camera 47
Machine a4 makes oil enter an oil dripping by the end of sample introduction needle 17 and dripped, and stops motor a4, closes valve a27, valve f43；Calculate
Machine 16 controls the shooting record oil droplet of video camera 47 to pass through software and calculate contact angle of the oil in rock surface in rock surface shape.
Or the controlled motor a4 of computer 16 pressurizes to oil storage pump a1, when pressure sensor a10 pressure and pressure sensor
When d24 is identical, valve a27, valve f43 are opened, computer 16 passes through controlled motor according to the image of the captured in real-time of video camera 47
A4 makes oil form an oil droplet by the end of sample introduction needle 17, stops motor a4, closes valve a27, valve f43；Computer 16 controls
The shape of the shooting record sample introduction needle end part oil droplet of video camera 47, the interfacial tension of oil is calculated by software.Pass through buck or boost
Mode can measure to obtain a series of interfacial tension oily under different pressures, by being fitted the pressure-dependent song of interfacial tension
Line, corresponding pressure when interfacial tension is zero can be obtained, pressure at this moment is oily minimum miscibility pressure.
Or the controlled motor a4 of computer 16 pressurizes to oil storage pump a1, when pressure sensor a10 pressure and pressure sensor
When d24 is identical, valve a27, valve f43 are opened, computer 16 passes through controlled motor according to the image of the captured in real-time of video camera 47
A4 makes oil form an oil droplet by the end of sample introduction needle 17, and the controlled motor a4 of computer 16 does periodic motion, oil droplet is periodically expanded
Big or diminution, the interface of oil can be obtained by the ratio of the calculating interfacial tension change of computer 16 and relative interface area change
Expansion viscosity and elasticity.
（d8）Measurement terminates, and closes water-oil-gas system A, HTHP storehouse system B and the heating in high temperature-pressure sample pond 23
Device；Valve e42 is opened, gas is entered gas and receives container 30, open valve i46, liquid is entered Liquid acquisition container
31.Computer 16 can be cleaned automatically by controlled motor and valve to high temperature-pressure sample pond 23
Implement:4：In the presence of measurement has gas, the method for the interfacial tension of the contact angle and water of water and rock.
（e1）Sample introduction needle 17 enters high temperature-pressure sample pond 23 by four-way a 32 and sleeve pipe a21, and specimen holder 18 is placed in height
The top of porous plate 20 of the warm bottom of high pressure sample pond 23.
（e2）Water, gas are respectively charged into micro water storage pump 2, gas storage pump 3, water storage pump 2 by line b 14, valve b28 with
Valve f43 is connected, and gas storage pump 3 is connected by line c 15, valve c29 with valve d41, and gas receives container 30 and valve e42 phases
Even.
（e3）Power-on, water-oil-gas system A and HTHP storehouse system B temperature is set by computer 16, opened
Light source 48 and video camera 47.
（e4）The control valve b28 of computer 16, valve f43 are opened, and motor b5 is opened, and are passed water through line b 14 and are entered height
Warm high pressure sample pond 23, there is water droplet when video camera 47 photographs the port of sample introduction needle 17, stop motor b5, close valve b28, valve
Door f43.
（e5）Rock sample to be measured is placed on the specimen holder 18 in high temperature-pressure sample pond 23, good seal high temperature-pressure sample
Pond 23, the temperature of electric heating cover 26 is set by computer 16.
（e6）The control valve c29 of computer 16, valve d41, valve g44 are opened, and motor a6 is opened, and gas is passed through pipeline
C15 enters high temperature-pressure sample pond 23, high temperature-pressure sample pond 23 is raised certain pressure, and it is high to open valve e42 discharge high temperature
The gas in sample cell 23 is pressed, is repeated several times pressurization and exhaust, empties the air in high temperature-pressure sample pond 23, closes valve
e42.Valve j50 is opened, computer 16 controls multifunctional color spectrometer 49 to measure the gas component in high temperature-pressure sample pond 23, point
Whether identical with gas storage pump c3 analyse gas component, if different continue clean-drain, if identical be pressurized to experimental pressure,
Stop motor a6, close valve c29, valve d41.
（e7）The controlled motor b5 of computer 16 pressurizes to water storage pump b2, when pressure sensor b11 pressure and pressure sensing
When device d24 is identical, valve b28, valve f43 are opened, computer 16 passes through control electricity according to the image of the captured in real-time of video camera 47
Machine b5 makes oil enter a drop water by the end of sample introduction needle 17 and dripped, and stops motor b5, closes valve b28, valve f43；Calculate
Machine 16 controls the shooting record water droplet of video camera 47 in rock surface shape, by software calculate water in the contact angle of rock surface and
Surface energy.
Or the controlled motor b5 of computer 16 pressurizes to water storage pump b2, when pressure sensor b11 pressure and pressure sensor
When d24 is identical, valve b28, valve f43 are opened, computer 16 passes through controlled motor according to the image of the captured in real-time of video camera 47
B5 makes oil form a water droplet by the end of sample introduction needle 17, stops motor b5, closes valve b28, valve f43；Computer 16 controls
The shape of the shooting record sample introduction needle end part water droplet of video camera 47, the interfacial tension of water is calculated by software.
Or the controlled motor b5 of computer 16 pressurizes to water storage pump b2, when pressure sensor b11 pressure and pressure sensor
When d24 is identical, valve b28, valve f43 are opened, computer 16 passes through controlled motor according to the image of the captured in real-time of video camera 47
B5 makes oil form a water droplet by the end of sample introduction needle 17, and controlled motor b5 makes micro water storage pump 2 do periodic motion, makes the water droplet cycle
Property expand or shrink, computer 16, which calculates interfacial tension change, can obtain the interface of water with the ratio of relative interface area change
Expansion viscosity and elasticity.
（e8）Measurement terminates, and closes water-oil-gas system A, HTHP storehouse system B and the heating in high temperature-pressure sample pond 23
Device；Valve e42 is opened, gas is entered gas and receives container 30, open valve i46, liquid is entered Liquid acquisition container
31, computer 16 can be cleaned automatically by controlled motor and valve to high temperature-pressure sample pond 23.
Claims (6)
1. a kind of simulate oil reservoir conditioned measurement contact angle and the device of interfacial tension, it is characterised in that：The device includes oil gas water
Injected system A, HTHP storehouse system B, automatically controls record system C；
The oil gas water injected system A includes three micro pumps, respectively oil storage pump（1）, water storage pump（2）, gas storage pump（3）, institute
State oil storage pump（1）, water storage pump（2）, gas storage pump（3）Bottom respectively with motor a（4）, motor b（5）, motor c（6）It is connected；It is described
Oil storage pump（1）, water storage pump（2）, gas storage pump（3）Top connects threeway a respectively（7）, threeway b（8）, threeway c（9）；The threeway a
（7）, threeway b（8）, threeway c（9）One end connects pressure sensor a respectively（10）, pressure sensor b（11）, pressure sensor c
（12）, the threeway a（7）, threeway b（8）, threeway c（9）Other end difference connecting pipeline a（13）, line b（14）, line c
（15）, the pipeline a（13）, line b（14）, line c（15）Upper nearly three go side is connected to valve a respectively（27）, valve b（28）、
Valve c（29）, the pipeline a（13）, line b（14）, line c（15）With HTHP storehouse system B valve d（41）, valve e
（42）, valve d（41）It is connected；
The HTHP storehouse system B includes outside and annular electric heating cover is housed（26）, both sides high pressure form is housed（19）Height
Warm high pressure sample pond（23）, high temperature-pressure sample pond（23）Bottom connects magnetic stirring apparatus（25）, high temperature-pressure sample pond（23）
Internal upper and lower side has exhaust concave slot（39）With discharge opeing concave groove（34）, discharge opeing matrix（34）With exhaust concave slot（39）Inside end
Face is provided with porous plate（20）, it is vented concave slot（39）Internal end surface porous plate bottom is equipped with specimen holder（18）, specimen holder（18）On
It is equipped with rock sample, high temperature-pressure sample pond（23）Upper and lower side passes through sleeve pipe a（21）, sleeve pipe b（22）Four-way a is connected respectively
（32）, four-way b（33）, the four-way a（32）Connecting pipeline b respectively（14）, pipeline e（36）, pipeline d（35）, four-way b（33）Point
Other connecting pipeline f（37）, pipeline g（38）, pipeline h（40）；The line b（14）, pipeline e（36）, pipeline d（35）, pipeline f
（37）, pipeline g（38）, pipeline h（40）It is upper to be connected to valve e respectively（42）, valve f（43）, valve g（44）, valve h（45）, valve
Door i（46）, valve d（41）；The pipeline e（36）Termination is connected to gas and receives container（30）, pipeline g（38）Termination is connected to liquid
Receive container（31）；The pipeline d（35）Pass through valve g（44）With pressure sensor d（24）It is connected, pipeline d（35）Pass through valve
Door j（50）With multifunctional color spectrometer（49）It is connected, pipeline f（37）Pass through valve h（45）With multifunctional color spectrometer（49）It is connected；Institute
State pipeline h（40）Nearly four-way b（33）End and sample introduction needle（17）It is connected, pipeline h（40）The other end passes through valve d（41）With pipeline a
（13）, line c（15）It is connected, valve described above is electric control valve；
The sample introduction needle（17）Pass through four-way b（33）With sleeve pipe b（22）Into high temperature-pressure sample pond（23）Or sample introduction needle（17）
Pass through four-way a（32）With sleeve pipe a（21）Into high temperature-pressure sample pond（23）；
It is described to automatically control record system C, including video camera（47）, computer（16）, light source（48）, the computer（16）With
Light source（48）And video camera（47）It is connected, light source（48）With video camera（47）It is respectively placed in high temperature-pressure sample pond（23）High pressure
Form（19）Both ends；The pressure sensor a（10）, pressure sensor b（11）, pressure sensor c（12）, pressure sensor d
（24）, motor a（4）, motor b（5）, motor c（6）, magnetic stirring apparatus（25）, electric heating cover（26）, valve, oil gas water injection system
Unite A, HTHP storehouse system B respectively with computer（16）Connection.
2. the device of simulation oil reservoir conditioned measurement contact angle according to claim 1 and interfacial tension, it is characterised in that：Institute
State electric heating cover（26）Temperature can control at 21 DEG C, 37 DEG C, 53 DEG C, 87 DEG C, 113 DEG C, 147 DEG C, 176 DEG C, 191 DEG C, it is high
Press form（19）With high temperature-pressure sample pond（23）Can pressure-resistant 9 MPa, 19MPa, 34MPa, 56MPa, 73MPa, 91MPa.
A kind of 3. measurement device contact using simulation oil reservoir conditioned measurement contact angle as claimed in claim 1 and interfacial tension
Angle and the method for interfacial tension, it is characterised in that comprise the following steps：
（1）Oil, Water, Gas is respectively charged into oil storage pump（1）, water storage pump（2）, gas storage pump（3）In, water storage pump（2）Pass through line b
（14）, valve b（28）With valve e（42）It is connected, oil storage pump（1）Pass through pipeline a（13）, valve a（27）With valve d（41）Phase
Even, gas storage pump（3）Pass through line c（15）, valve c（29）With valve d（41）It is connected；
（2）Power-on, pass through computer（16）Water-oil-gas system A and HTHP storehouse system B temperature is set, opens light source
（48）And video camera（47）；
（3）Computer（16）Control valve a（27）, valve d（41）Open, pass through computer（16）Controlled motor a（4）, make oil
Pass through pipeline a（13）Into high temperature-pressure sample pond（23）, work as video camera（47）Photograph sample introduction needle（17）There is oil droplet in port,
Stop motor a（4）, close valve a（27）, valve d（41）；Or computer（16）Control valve c（29）, valve d（41）Open,
High pressure gas is set to pass through line c（15）Into high temperature-pressure sample pond（23）, then, close valve c（29）, valve d（41）；
（4）Rock sample to be measured is placed on high temperature-pressure sample pond（23）Specimen holder（18）On, magnetic bar is placed on HTHP
Sample cell（23）Bottom perforated plate（20）On, good seal high temperature-pressure sample pond（23）, pass through computer（16）Set electrical heating
Set（26）Temperature；
（5）Computer（16）Control valve b（28）, valve e（42）, valve g（44）Open, pass through computer（16）Controlled motor
b（5）, pass water through line b（14）Into high temperature-pressure sample pond（23）, open valve f（43）, make high temperature-pressure sample pond
（23）In gas enter gas receive container（30）, treat pipeline e（36）Termination there are flowing out, and close valve f（43）, continue to add
Experimental pressure is pressed onto, stops motor b（5）, close valve b（28）, valve e（42）；Before measuring or in measurement process, Ke Yitong
Cross magnetic stirring apparatus（25）Stir high temperature-pressure sample pond（23）In solution；
（6）Computer（16）Controlled motor a（4）To oil storage pump（1）Pressurization, as pressure sensor a（10）Pressure and pressure pass
Sensor d（24）When identical, computer（16）Control valve a（27）, valve d（41）Open, computer（16）According to video camera
（47）The image of captured in real-time, controlled motor a（4）Oil is set to pass through sample introduction needle（17）Into an oil dripping and float, stop motor a
（4）, close valve a（27）, valve d（41）；Or computer（16）Controlled motor c（6）To gas storage pump（3）Pressurization, when pressure passes
Sensor c（12）Pressure and pressure sensor d（24）When identical, valve c is opened（29）, valve d（41）, computer（16）According to
Video camera（47）The image of captured in real-time, controlled motor a（4）Gas is set to pass through sample introduction needle（17）Into a bubble and float, stop
Only motor c（6）, close valve c（29）, valve d（41）；
（7）Computer（16）Control video camera（47）Shooting record oil droplet or bubble are calculated by software in rock surface shape
Contact angle of the oily or gas in rock surface；Or computer（16）Controlled motor a（4）Make oil in sample introduction needle（17）End forms an oil
Drop, computer（16）Control video camera（47）The shape of shooting record oil droplet, the interfacial tension of oil is calculated by software；Or calculate
Machine（16）Controlled motor a（4）Make oil storage pump（1）Periodic motion is done, makes sample introduction needle（17）The oil droplet of end, which periodically expands, to be reduced,
Computer（16）Pass through interfacial tension change and the Interfacial dilational viscoelasticity of the ratio calculation oil of relative interface area change；
（8）Close water-oil-gas system A, HTHP storehouse system B and electric heating cover（26）Heater, open valve i（46）；
Computer（16）By controlled motor and valve to high temperature-pressure sample pond（23）Automatically cleaned.
4. the method for simulation oil reservoir conditioned measurement contact angle according to claim 3 and interfacial tension, it is characterised in that：Institute
Stating water-oil-gas system A and HTHP storehouse system B temperature can control at 21 DEG C, 37 DEG C, 53 DEG C, 87 DEG C, the experiment pressure
Power can be controlled in 9 MPa, 19MPa, 34MPa, 56MPa, 73MPa, 91MPa；The electric heating cover（26）Temperature can control
System is at 21 DEG C, 37 DEG C, 53 DEG C, 87 DEG C, 113 DEG C, 147 DEG C, 176 DEG C, 191 DEG C.
5. the method for simulation oil reservoir conditioned measurement contact angle according to claim 3 and interfacial tension, it is characterised in that：Institute
Rock sample is stated as natural core, artificial core, quartz plate, mica.
6. the method for simulation oil reservoir conditioned measurement contact angle according to claim 3 and interfacial tension, it is characterised in that：Institute
Oil is stated as alkane, simulation oil, crude oil；The gas is air, natural gas, carbon dioxide, nitrogen；The water is deionized water, salt
Water, oil field extracted water, oilfield injection water, displacement of reservoir oil agent solution.
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