CN207063972U - A kind of visualized experimental provision of the high-pressure gas injection displacement of reservoir oil - Google Patents
A kind of visualized experimental provision of the high-pressure gas injection displacement of reservoir oil Download PDFInfo
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- CN207063972U CN207063972U CN201721032809.8U CN201721032809U CN207063972U CN 207063972 U CN207063972 U CN 207063972U CN 201721032809 U CN201721032809 U CN 201721032809U CN 207063972 U CN207063972 U CN 207063972U
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- glass tube
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- gas injection
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Abstract
The utility model discloses a kind of visualized experimental provision of the high-pressure gas injection displacement of reservoir oil, it includes：Slender glass tube, it is the cylindrical glass tube for the both ends open being formed by connecting by several sections of short glass tubes, porous media is filled with glass tube, porous media is being provided with annular groove built with experiment fluid oil close to the short glass tube surface of gas access and liquid oil export；Sleeve, it, which is set with and is sealingly fastened in outside slender glass tube, forms sealing annular space, seal filling transparent gas in annular space, sleeve end face is spacing to be fixed in annular groove, and the gap added in bonding agent filling groove, and air-tightness detection device is provided with junction, watch window is opened up in the axial direction on sleeve, sleeve lining face sets camera, in addition to gas injection apparatus and transparent gas injection device in the axial direction.Sealing of the present utility model well meets the requirement of high-pressure gas injection, and the length of slender glass section can be adjusted according to requirement of experiment and assembled, applied widely.
Description
Technical field
It the utility model is related to technical field of petroleum extraction, more particularly to a kind of visualized experiment of the high-pressure gas injection displacement of reservoir oil
Device.
Background technology
Eor By Gas Injection is a kind of theoretically technology higher than waterflood enhanced recovery, it is external in recent years
Carry out gas injection drive have developed rapidly, it has also become the most important raising recovery ratio method in addition to thermal recovery.One of most important mechanism of gas injection
Exactly inject gas and produce strong physics chemical action with crude oil, so that interface of oil and gas tension force declines, while change oil gas
Physicochemical properties.The gas injection medium used at present is mainly CO2、N2、CH4, four kinds of gases of flue gas, various gases have not
With the characteristics of and adaptability.CO2It is that miscible pressure is all lower than other three kinds of gases in the major advantage of injection, CO2From porous media
In the effective displacement of reservoir oil have：Make the advantages that crude oil volumetric expansion, viscosity reduce, miscible pressure is low, reduction interfacial tension.N2Resource
Extremely abundant, the density of nitrogen is smaller, and viscosity is small, and the dissolubility in oil, water is also very weak, and these features are that nitrogen is carried out
The advantageous condition of the stable displacement of reservoir oil of gravity, it is usually used in the stable drive of gravity, exploitation gas condensate field, mixed phase drives and CO2, enriched gas drive
Or other solution slugs etc., while the Small side effects of nitrogen injection and flue gas, cost is low, can develop different types of oil-gas reservoir,
Have wide practical use.The displacement of reservoir oil feature of flue gas is between CO2And N2Between.Note hydrocarbon gas under relatively low pressure may be used
With with crude oil mixed phase, or mixed phase is developed into displacement process, main mechanism of oil displacement be volumetric expansion, viscosity reduce, with
And gravity-stable displacement etc., therefore it is a major advantage that stratum is not injured, is particularly suitable for use in the bad oil field of western market for natural gas,
It is also applied for developing rich gas gas condensate reservoir simultaneously.
The process and effect of injection gas displacement, largely relevant with the pressure of gas injection, the pressure usually in oil reservoir
Lower beginning gas injection.And the pressure of oil reservoir may be up to 10-30MPa, therefore injection gas displacement experiment needs to carry out under high pressure.Gas injection is driven
Oil is different from water drive oil, and it has dissolving each other for oil-gas, the mass transfer between oil and injection gas be present, can reach under certain condition
Mixed phase.Certainly, mixed phase can be reached, how to reach mixed phase, this is needed according to the oil property in some oil field come specific experiment
Obtain.Experiment is exactly a kind of Main Means studied.Current existing experimental method, mainly uses the elongated tube model of steel,
Its feature is：Due to being made using stainless steel, high temperature, the requirement of high-pressure gas injection can be met, wanting for length can also be met
Ask, it is general up to more than 10 meters.But major defect is due to stainless steel making, therefore middle oil displacement process is not visible, it is not known that former
How oil mixes with gas.If not observing pilot process, mixed phase mechanism and mechanism cannot be fully understood.CN102839968A
A kind of high-pressure gas injection displacement of reservoir oil whole course visible experimental provision is disclosed, including：Slender glass tube and it is enclosed in the slender glass tube
Outside closed container, filled with the balance slender glass being enclosed in outside the slender glass tube in the closed container
The protection fluid of pipe external and internal pressure, the protection fluid are transparent.Slender glass tube is up to more than 10 meters, the processing of glass tube
Difficulty is big, also not readily transportable to move and deposit, and is easily damaged broken, once damage, whole glass tube can not all use, and pass through
Ji loss is big.Although being provided with multiple forms, blind area still be present, it is impossible to it is successional observe whole experiment process, and
And connectivity problem and sealing problem between sealing container and slender glass tube are not involved with the patent.
Utility model content
A purpose of the present utility model is that solve at least the above and/or defect, and provides and at least will be described later
The advantages of.
It is that experiment slender glass tube present in solution experimental provision is oversize that the utility model, which also has a purpose, inconvenience
Move in transport, deposit, difficulty of processing it is big, and sealing has much room for improvement the problems such as with suitable for higher pressure experiment condition.
In order to realize these purposes of the utility model and further advantage, there is provided a kind of high-pressure gas injection displacement of reservoir oil is visualized
Experimental provision, for simulating mixed phase and oil displacement process that gas is injected in gas injection experiment, the high-pressure gas injection displacement of reservoir oil whole course visible is real
Experiment device includes：
Slender glass tube, it is the cylindrical glass tube for the both ends open being formed by connecting by several sections of short glass tubes, the glass
Seal is provided with by bolt or threaded connection, junction between glass short tube, porous media is filled with slender glass tube,
Porous media is respectively arranged with gas access and liquid oil export built with experiment fluid oil, the both ends of slender glass tube,
The short glass tube surface of gas access and liquid oil export is provided with annular groove；
Sleeve, it is set with and is sealingly fastened in outside the slender glass tube, is formed between sleeve and slender glass tube
Annular space is sealed, fills transparent protective gas in sealing annular space, one end close to gas access on sleeve is provided with protection gas
The entrance of body；In sleeve both ends of the surface and slender glass tube junction, sleeve end face is spacing to be fixed in annular groove, and is added viscous
The gap in agent filling groove is connect, and air-tightness detection device is provided with junction, the air-tightness detection device includes being located at
Sensor on sleeve lining and the detection means on sleeve outer wall, the sensor are connected with detection means；It is described
Two symmetrical gaps are offered on sleeve in the axial direction, pressure resistant quartz glass is installed at gap and forms observation window
Mouthful, sleeve lining face is equidistantly provided with least two cameras in the axial direction, and the transparency protected of sealing is set outside camera
Cover；
Gas injection apparatus, its gas pressurized pump for including gas reservoir and being connected with gas reservoir, the gas pressurized
Pump is connected by the gas access of pipeline and glass tube；
Protective gas injection device, it includes protective gas storage tank and with storing up tank connected protective gas force (forcing) pump, described
Gas pressurized pump is connected by the gas atmosphere inlet of pipeline and sleeve.
Preferably, it is bolted between the short glass tube, junction is provided with O-ring seal.
Preferably, it is connected through a screw thread between the short glass tube, two end side surfaces of a short glass tube set outer spiral shell
Line, the both ends of short glass tube adjacent thereto set the internal thread matched with external screw thread, have externally threaded short glass tube and tool
The short glass tube of internal screw thread is crossed-over forming slender glass tube.
Preferably, the slender glass tube and sleeve inner are provided with pressure sensor.
Preferably, the both ends of the surface of the sleeve offer looping pit around glass tube, and pressure resistant quartz is installed on looping pit
Glass.
Preferably, the protective gas is air.
Preferably, the protective gas injection device includes air pressurization pump, and force (forcing) pump is connected with air intake, in sky
Gas entrance is additionally provided with airstrainer.
Compared with prior art, the utility model has the advantages that：
The slender glass tube used in one, experimental provision is formed by connecting by multistage short glass tube, can be according to specific reality
Test requirement and obtain the slender glass tube of different length, meet different experimental conditions, the scope of application is big, and experiment terminate after can be with
Short glass tube is split as, it is convenient to carry, place, it is not easy to damage, even if a certain short glass tube damages, other short glass tubes
It can also use.
Secondly, be provided with annular groove in sleeve both ends of the surface and slender glass tube junction, glass tube, sleeve end face limit
Position is fixed in annular groove, and the gap added in bonding agent filling groove, sleeve are connected firmly closely with slender glass tube,
Good airproof performance, higher pressure is resistant to, and air-tightness detection device is provided with junction, detect whether to ask in the presence of leakage at any time
Topic, timely processing of pinpointing the problems.
Thirdly, open up gap on sleeve, and pressure resistant quartz glass is installed and forms watch window, can be whole with successional observation
Individual experimentation, in the absence of blind area, while whole experiment process can be shot and recorded using as rear by the camera installed
The reference of continuous analysis of experimental results.
Further advantage, target and feature of the present utility model embody part by following explanation, and part will also pass through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1, the visualized experimental provision of one embodiment mesohigh injection gas displacement structural representation；
The left view of Fig. 2, Fig. 1 shown device；
Connection structure diagram between Fig. 3, slender glass tube and sleeve；
Fig. 4, another visualized experimental provision of embodiment mesohigh injection gas displacement structural representation；
Schematic diagram is threadedly coupled between Fig. 5, short glass tube.
Label in figure：
It is slender glass tube 1, short glass tube 11, seal 12, gas access 13, liquid oil export 14, annular groove 15, more
Hole medium 16, external screw thread 17, internal thread 18, sleeve 2, protective gas 21, gas atmosphere inlet 22, bonding agent 23, watch window
24th, camera 25, looping pit 26, air-tightness detection device 3, sensor 31, detection means 32, gas injection apparatus 4, gas storage
Tank 41, gas pressurized pump 42, protective gas injection device 5, protective gas storage tank 51, protective gas force (forcing) pump 52, air filtration
Net 53, pressure sensor 6.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of individual other elements or its combination.
As Figure 1-5, the utility model provides a kind of visualized experimental provision of the high-pressure gas injection displacement of reservoir oil, for mould
Intend injecting the mixed phase and oil displacement process of gas in gas injection experiment, the high-pressure gas injection displacement of reservoir oil whole course visible experimental provision includes：It is elongated
Glass tube 1, sleeve 2, air-tightness detection device 3, gas injection apparatus 4 and protective gas injection device 5.
The slender glass tube 1 is the cylindrical glass tube of both ends open being formed by connecting by several sections of short glass tubes 11, institute
State between short glass tube 11 by bolt or threaded connection, junction is provided with seal 12, it is preferred that the short glass tube
It is bolted between 11, junction is provided with O-ring seal.Porous media 16 is filled with slender glass tube 1, it is more
Built with experiment with fluid oil (be, for example, crude oil), the both ends of slender glass tube 1 are separately provided for being pumped into injection hole medium
The gas access 13 of gas and the liquid oil export 14 for exporting output, in the glass close to gas access 13 and liquid oil export 14
The surface of glass short tube 11 is provided with annular groove 15.Slender glass tube 1 is formed by connecting by multistage short glass tube 11, can be according to specific
Requirement of experiment obtains the slender glass tube of different length, meets different experimental conditions, and the scope of application is big, and experiment terminate after can
It is convenient to carry to be split as short glass tube 11, place, it is not easy to damage, even if a certain short glass tube damages, other glass are short
Pipe can also also use.
The sleeve 2 is made of metal, and it is set with and is sealingly fastened in outside the slender glass tube 1, in sleeve and carefully
Sealing annular space is formed between long glass tube 1, transparent protective gas 21 is filled in sealing annular space, close to gas access on sleeve
13 one end is provided with the entrance 22 of protective gas.Glass tube passes through the protective gas 21 outside glass tube in experimentation
Balanced action add glass tube pressure born to injection gas, be difficult to bear to inject the huge of gas so as to solve glass tube
The problem of pressure, so as to preferably protecting slender glass tube 1, the slender glass tube up to 10 meters is avoided inside and outside huge
Under pressure, the phenomenon of caused explosion due to pressure inequality.
In the both ends of the surface of sleeve 2 and the junction of slender glass tube 1, sleeve end face is spacing to be fixed in annular groove 15, and is added
Enter the gap in the filling groove of bonding agent 23, see Fig. 3.And it is provided with air-tightness detection device 3, the air-leakage test in junction
Device includes the sensor 31 on sleeve lining and the detection means 32 on sleeve outer wall, the sensor and inspection
Survey device connection.Sleeve is connected firmly closely with slender glass tube 1, good airproof performance, is resistant to higher pressure, and in junction
Provided with air-tightness detection device, detect whether leakage problem be present at any time, timely processing of pinpointing the problems.
As shown in Fig. 2 offering two symmetrical gaps on the sleeve 2 in the axial direction, it is provided with gap
Pressure resistant quartz glass forms watch window 24, and sleeve lining face is equidistantly provided with least two cameras 25 in the axial direction,
The transparent pressure-resistant protective cover (not shown) of sealing is set outside camera.The both ends of the surface of the sleeve offer annular around glass tube
Hole 26, pressure resistant quartz glass is installed on looping pit.The looping pit 26 is mainly used in illumination light transmission, is that extraneous light enters it
In, ensure brightness enough in sealing annular space, be easy to experimenter to observe.This realizes continuity observation whole experiment process,
In the absence of blind area, while whole experiment process can be shot and recorded by the camera installed, to be used as subsequent experimental result
The reference of analysis.
Gas injection apparatus 4, its gas pressurized pump 42 for including gas reservoir 41 and being connected with gas reservoir, the gas
Force (forcing) pump is connected by the gas access 13 of pipeline and glass tube.
Protective gas injection device 5, it includes protective gas storage tank 51 and with storing up tank connected protective gas force (forcing) pump 52,
The gas pressurized pump 52 is connected by the gas atmosphere inlet 22 of pipeline and sleeve.Can entirely it tested by force (forcing) pump 52
During keep protective gas pressure.Force (forcing) pump 52 can be confined pressure pump or ring press pump, and boosting capability is stronger.
In another embodiment, as shown in figure 5, be connected through a screw thread between the short glass tube 11, short glass tube
Two end side surfaces set external screw thread 17, and the both ends of short glass tube adjacent thereto set the internal thread 18 matched with the external screw thread,
Short glass tube with externally threaded short glass tube and specific internal thread is crossed-over forming slender glass tube 1, and even
The place of connecing is provided with seal 12, preferably O-ring seal.
In another embodiment, as shown in figure 4, the slender glass tube 1 and sleeve inner are provided with pressure sensor 6.
The protective gas is air.The protective gas injection device includes air pressurization pump, and force (forcing) pump is connected with air intake,
Air intake is additionally provided with airstrainer 53.
The application method of high-pressure gas injection displacement of reservoir oil whole course visible experimental provision of the present utility model：From the one end of slender glass tube 1
Gas access 13 be pumped into injection gas, production fluid is exported from the liquid oil export 14 of the other end of slender glass tube 1, in slender glass
The protective gas of filling balance slender glass tube external and internal pressure outside pipe 1, increases slender glass tube 1 while injection gas is pumped into
The pressure of outer protective gas so that the inside and outside differential pressure of slender glass tube 1 is pressure-resistant less than slender glass tube 1 in experimentation
Pressure, the mixed phase and oil displacement process of gas are injected in simulation gas injection experiment.Put down by the pressure of the protective gas outside slender glass tube 1
Weigh or balance out the high pressure of the injection gas born inside slender glass tube 1, so as to it is same it is pressure-resistant under the conditions of so that elongated glass
It can bear to test the required high pressure and high temperature of injecting gas inside glass pipe 1.
In summary, high-pressure gas injection displacement of reservoir oil whole course visible experimental provision of the present utility model is simple in construction, is easy to preparation to add
Work and strong applicability, financial cost are low.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization.It can be applied to various suitable fields of the present utility model completely.For those skilled in the art,
Other modification is easily achieved.Therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (7)
- A kind of 1. visualized experimental provision of the high-pressure gas injection displacement of reservoir oil, it is characterised in that including：Slender glass tube, it is the cylindrical glass tube for the both ends open being formed by connecting by several sections of short glass tubes, and the glass is short Seal is provided with by bolt or threaded connection, junction between pipe, porous media is filled with slender glass tube, it is porous Medium is built with experiment fluid oil, and the both ends of slender glass tube are respectively arranged with gas access and liquid oil export, close Gas access and the short glass tube surface of liquid oil export are provided with annular groove；Sleeve, it is set with and is sealingly fastened in outside the slender glass tube, and sealing is formed between sleeve and slender glass tube Annular space, the transparent protective gas of the interior filling of sealing annular space, one end close to gas access on sleeve is provided with protective gas Entrance；In sleeve both ends of the surface and slender glass tube junction, sleeve end face is spacing to be fixed in annular groove, and adds bonding agent The gap in groove is filled, and air-tightness detection device is provided with junction, the air-tightness detection device includes being located at sleeve Sensor on inwall and the detection means on sleeve outer wall, the sensor are connected with detection means；The sleeve On offer two symmetrical gaps in the axial direction, be provided with gap pressure resistant quartz glass formed watch window, set Cylinder internal face is equidistantly provided with least two cameras in the axial direction, and the transparent protective shield of sealing is set outside camera；Gas injection apparatus, its gas pressurized pump for including gas reservoir and being connected with gas reservoir, the gas pressurized pump lead to The gas access of piping and glass tube connects；Protective gas injection device, it includes gas reservoir and with storing up tank connected gas pressurized pump, and the gas pressurized pump leads to The gas atmosphere inlet of piping and sleeve connects.
- 2. the visualized experimental provision of the high-pressure gas injection displacement of reservoir oil as claimed in claim 1, it is characterised in that the short glass tube Between be bolted, junction is provided with O-ring seal.
- 3. the visualized experimental provision of the high-pressure gas injection displacement of reservoir oil as claimed in claim 1, it is characterised in that the short glass tube Between be connected through a screw thread, two end side surfaces of short glass tube set external screw thread, and the both ends of short glass tube adjacent thereto are set The internal thread matched with external screw thread is put, the short glass tube with externally threaded short glass tube and specific internal thread is crossed-over Form slender glass tube.
- 4. the visualized experimental provision of the high-pressure gas injection displacement of reservoir oil as claimed in claim 1, it is characterised in that the slender glass Pipe and sleeve inner are provided with pressure sensor.
- 5. the visualized experimental provision of the high-pressure gas injection displacement of reservoir oil as claimed in claim 4, it is characterised in that the two of the sleeve End face offers looping pit around glass tube, and pressure resistant quartz glass is installed on looping pit.
- 6. the visualized experimental provision of the high-pressure gas injection displacement of reservoir oil as claimed in claim 1, it is characterised in that the protective gas For air.
- 7. the visualized experimental provision of the high-pressure gas injection displacement of reservoir oil as claimed in claim 6, it is characterised in that the protective gas Injection device includes air pressurization pump, and force (forcing) pump is connected with air intake, and airstrainer is additionally provided with air intake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721032809.8U CN207063972U (en) | 2017-08-17 | 2017-08-17 | A kind of visualized experimental provision of the high-pressure gas injection displacement of reservoir oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721032809.8U CN207063972U (en) | 2017-08-17 | 2017-08-17 | A kind of visualized experimental provision of the high-pressure gas injection displacement of reservoir oil |
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| CN207063972U true CN207063972U (en) | 2018-03-02 |
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|---|---|---|---|
| CN201721032809.8U Expired - Fee Related CN207063972U (en) | 2017-08-17 | 2017-08-17 | A kind of visualized experimental provision of the high-pressure gas injection displacement of reservoir oil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364985A (en) * | 2020-05-15 | 2020-07-03 | 西南石油大学 | Thin tube experiment device with pressure covering function and using method |
| CN111472764A (en) * | 2020-04-13 | 2020-07-31 | 西南石油大学 | Method for calculating recovery rate of rich gas in rich gas flooding process |
-
2017
- 2017-08-17 CN CN201721032809.8U patent/CN207063972U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472764A (en) * | 2020-04-13 | 2020-07-31 | 西南石油大学 | Method for calculating recovery rate of rich gas in rich gas flooding process |
| CN111364985A (en) * | 2020-05-15 | 2020-07-03 | 西南石油大学 | Thin tube experiment device with pressure covering function and using method |
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Granted publication date: 20180302 Termination date: 20180817 |