CN203050688U - Water-gas dispersion injection device for core gas injection displacement experiment - Google Patents
Water-gas dispersion injection device for core gas injection displacement experiment Download PDFInfo
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- CN203050688U CN203050688U CN 201220652086 CN201220652086U CN203050688U CN 203050688 U CN203050688 U CN 203050688U CN 201220652086 CN201220652086 CN 201220652086 CN 201220652086 U CN201220652086 U CN 201220652086U CN 203050688 U CN203050688 U CN 203050688U
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- 238000002347 injection Methods 0.000 title claims abstract description 65
- 239000007924 injection Substances 0.000 title claims abstract description 65
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 32
- 238000002474 experimental method Methods 0.000 title abstract description 4
- 239000006185 dispersion Substances 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000011435 rock Substances 0.000 claims abstract description 21
- 239000013043 chemical agent Substances 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000012360 testing method Methods 0.000 claims description 27
- 230000035699 permeability Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 46
- 239000007921 spray Substances 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 244000287680 Garcinia dulcis Species 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model relates to a water-gas dispersion injection device for a rock core gas injection displacement experiment, which comprises a sealed cavity, wherein the middle part of the sealed cavity is provided with a natural rock core, an upper orifice plate and a lower orifice plate; a first atomizing spray head connected with a first valve is arranged on the inner side wall of the upper chamber; an upper baffle is arranged above the first atomizing nozzle; the top of the upper chamber is provided with a fluid outlet, and the fluid outlet is provided with a second valve and a visual observation window; two laser transmitters which are arranged in parallel at intervals and electrically connected with a liquid level controller are arranged on the inner side wall of the lower chamber, and the liquid level controller is communicated with the bottom of the lower chamber and an overflowing liquid container through a pipeline; a system back pressure controller is also communicated with the bottom of the lower chamber and the overflowing liquid container through a pipeline; the bottom of the lower chamber is communicated with the gas injection port through a third valve; and a middle baffle and a lower baffle are transversely arranged above the two laser transmitters along the lower cavity, and the sealed cavity is arranged in a constant temperature box. The device can realize the simultaneous injection and the proportional injection of water, gas and chemical agents.
Description
Technical field
The utility model is about oil recovery rock core gas injection displacement test device, relates in particular to a kind of aqueous vapor for rock core gas injection displacement test and disperses injection device.
Background technology
At present, the oil recovery of oilfield gas injection raising both at home and abroad application technology constantly enlarges, and oil increasing effect is remarkable, especially CO
2Gas injection improves recovery efficiency technique, has both satisfied the needs that international community's greenhouse gases are buried, and provides a new way for domestic low permeability oil field improves recovery efficiency technique again.Yet, along with the continuous popularization of gas injection technology, also correspondingly having exposed a series of problems, laboratory core gas injection displacement test is the most direct a kind of means that solve problems.No matter be short rock core displacement, long rock core displacement, or the three-dimensional physical model displacement all relates to injection modes such as air water is annotated together, different air water ratio is intermittently injected.As shown in Figure 4, traditional laboratory air water injection mode normally adopts two independently water receptacle 91 gentle containers 92, be connected with a threeway 93 simultaneously, fluid issuing 96 is connected with experimental facilities, and the ratio of injecting then is to adjust by the pump 94 that is connected with each container, 95 pump speed.This kind existing structure advantage is easy, but also has big defective, the one, can't judge whether aqueous vapor injects (may be the injection of one section gas of one section water) simultaneously; The 2nd, add chemical agent as need, control water, gas and chemical agent three ratio be difficulty comparatively, therefore can the quality of laboratory core gas injection displacement test be exerted an influence.
Thus, the inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes a kind of aqueous vapor for rock core gas injection displacement test and disperses injection device, to overcome the defective of prior art.
The utility model content
The purpose of this utility model is to provide a kind of aqueous vapor for rock core gas injection displacement test to disperse injection device, this device can be realized that water, gas, chemical agent inject simultaneously and inject in proportion, simulated field water, gas, chemical agent injection mode effectively, in time solve the existing problem that exists, improve displacement test better.
The purpose of this utility model is to realize like this, a kind of aqueous vapor for rock core gas injection displacement test is disperseed injection device, described aqueous vapor disperses injection device to comprise a seal chamber, the middle part of sealing cavity laterally is provided with natural core, and the upper and lower end that is close to this natural core is respectively equipped with up-hole plate and orifice plate; Described natural core, up-hole plate and orifice plate are divided into upper chamber and lower chambers with cavity; The inside wall of described upper chamber is provided with first atomizer and is connected in first valve by pipeline, and this first valve is communicated with high-pressure water inlet; Be positioned at first atomizer top and laterally be provided with an overhead gage with breach along cavity; The top of described upper chamber is provided with the fluid issuing with the conducting of gas injection displacement test device, is provided with second valve and visible observation window in the fluid issuing; The inside wall of described lower chambers is provided with the generating laser that two parallel interval arrange, and described two generating lasers are electrically connected a fluid level controller, and described fluid level controller is distinguished conducting in lower chambers bottom and an overflowing liquid container by pipeline; One system's back pressure controller is also distinguished conducting in lower chambers bottom and described overflowing liquid container by pipeline; Described lower chambers bottom is communicated with the gas inlet by the 3rd valve; Be arranged in two generating laser tops and laterally be provided with baffle plate and the lower baffle plate with breach along lower chambers, described middle baffle plate and lower baffle plate are up and down at interval, the mode of left and right sides juxtaposition arranges; Described seal chamber is arranged in the insulating box.
In a preferred embodiments of the present utility model, the inside wall of described upper chamber and first atomizer relatively are provided with one second atomizer, and described second atomizer is connected in the 4th valve by pipeline, and the 4th valve is communicated with the chemical agent inlet.
In a preferred embodiments of the present utility model, the permeability of described natural core is 500-2000mD.
In a preferred embodiments of the present utility model, described seal chamber is cylindric, and its internal diameter is 30cm; The thickness of described natural core is that 4cm, diameter are 30cm; The thickness of described up-hole plate and orifice plate is that 5mm, eyelet number are that 40 orders, diameter are 30cm.
In a preferred embodiments of the present utility model, the aperture 0.46mm of described first atomizer and second atomizer.
From the above mentioned, the utility model is used for the aqueous vapor of rock core gas injection displacement test and disperses injection device, on the basis of using for reference conventional injection mode, utilize the natural core porous media of different permeabilities, play the effect to gas or fluid molecule enforcement a kind of " saw " or " hole sieve ", namely smash the air-water mixture molecule, delay gas flow rate, gas is fully contacted with water, and cooperate the high-pressure atomization shower nozzle to form a cover water, gas, chemical agent is with annotating, or pro rata injection mode, guarantee laboratory water, gas, chemical agent injects the quality of displacement test, provides strong technical support for explaining the problems that exist in the on-the-spot gas injection process in oil field.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: the structural representation that is used for the aqueous vapor dispersion injection device of rock core gas injection displacement test for the utility model.
Fig. 2: be the cross sectional representation of natural core in the utility model.
Fig. 3: be the structural representation of upper and lower orifice plate in the utility model.
Fig. 4: be existing conventional aqueous vapor injecting structure schematic diagram.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
As Fig. 1～shown in Figure 3, the utility model proposes a kind of aqueous vapor for rock core gas injection displacement test and disperse injection device 100, described aqueous vapor disperses injection device 100 to comprise a seal chamber 1, the middle part of sealing cavity 1 laterally is provided with natural core, and the upper and lower end that is close to this natural core 2 is respectively equipped with up-hole plate 21 and orifice plate 22; Described natural core 2, up-hole plate 21 and orifice plate 22 are divided into upper chamber 11 and lower chambers 12 with seal chamber 1; The inside wall of described upper chamber 11 is provided with first atomizer 31 and is connected in first valve 41 by pipeline, and this first valve 41 is communicated with high-pressure water inlet; Be positioned at first atomizer, 31 tops and laterally be provided with an overhead gage 51 with breach along seal chamber 1; The inside wall of described upper chamber 11 and first atomizer 31 relatively are provided with one second atomizer 32, and described second atomizer 32 is connected in the 4th valve 44, the four valves 44 by pipeline and is communicated with the chemical agent inlet; The top of described upper chamber 11 is provided with the fluid issuing with the conducting of gas injection displacement test device (not shown), is provided with second valve 42 and visible observation window 6 in the fluid issuing; The inside wall of described lower chambers 12 is provided with the generating laser 71 that two parallel interval arrange, described two generating lasers 71 are electrically connected a fluid level controller 72, and described fluid level controller 72 is distinguished conducting in lower chambers 12 bottoms and an overflowing liquid container 8 by pipeline; One system's back pressure controller 73 is also distinguished conducting in lower chambers 12 bottoms and described overflowing liquid container 8 by pipeline; Described lower chambers 12 bottoms are communicated with the gas inlet by the 3rd valve 43; Be arranged in two generating laser 71 tops and laterally be provided with baffle plate 52 and the lower baffle plate 53 with breach along lower chambers 12, described middle baffle plate 52 and lower baffle plate 53 are up and down at interval, the mode of left and right sides juxtaposition arranges; Described seal chamber 1 is arranged in the insulating box 9.
From the above mentioned, the utility model is used for the aqueous vapor of rock core gas injection displacement test and disperses injection device, on the basis of using for reference conventional injection mode, utilize the natural core porous media of different permeabilities, play the effect to gas or fluid molecule enforcement a kind of " saw " or " hole sieve ", namely smash the air-water mixture molecule, delay gas flow rate, gas is fully contacted with water, and cooperate the high-pressure atomization shower nozzle to form a cover water, gas, chemical agent is with annotating, or pro rata injection mode, guarantee laboratory water, gas, chemical agent injects the quality of displacement test, provides strong technical support for explaining the problems that exist in the on-the-spot gas injection process in oil field.
Further, described up-hole plate 21 and orifice plate 22 can play the effect of protection natural core 2; Visible observation window 6 is connected in the fluid issuing, can observe water, gas, chemical agent mixing situation; This visible observation window 6 is existing structure.
Described overhead gage 51, middle baffle plate 52 and lower baffle plate 53 can play the effect of control gas flow, and can prevent the too early bleeder of sealing.
Described two generating lasers 71 are used for controlling the liquid level in the seal chamber 1, and transmit signals to fluid level controller 72; After fluid level controller 72 receives the instruction of generating laser 71, open and with the unnecessary liquid flooding in the seal chamber 1 to overflowing liquid container 8; System's back pressure controller 73 is used for regulating aqueous vapor and disperses the injection device internal pressure, reaching requirement of experiment pressure, and with unnecessary liquid flooding to overflowing liquid container 8.
The utility model is used for the aqueous vapor of rock core gas injection displacement test and disperses the use of injection device as follows:
(1) according to the traffic requirement of fluid issuing, selects the injection rate (being generally 1-5ml/min) of natural core and water, gas, chemical agent injection end;
(2) close all valves;
(2) require to set the pressure of back pressure controller according to displacement test;
(3) slowly open first valve, second valve, the 3rd valve and the 4th valve;
(4) set gas injection rate and maintenance necessarily, regulate water under high pressure, chemical agent entrance injection rate, the outlet fluid is carried out gas, liquid collection, analyze ratio separately, as defective adjustment water under high pressure, chemical agent entrance injection rate, repeat to satisfy requirement of experiment up to three's ratio;
(5) if the exit drop is bigger or less, change the natural core of different permeabilities;
(6) fluid issuing is connected with the rock core displacement test device, carries out displacement test.
The utility model compared with prior art has the following advantages:
(1) can realize that water, gas, chemical agent inject simultaneously, inject in proportion;
(2) by adjusting the permeability of natural core, make the controlled amount, adjustable of atomized drop;
(3) make system output stream body ratio stable by the control of constant speed pump.
Further, as shown in Figure 2, in the present embodiment, the permeability of described natural core 2 is 5002000mD.Described seal chamber 1 is cylindric, and it highly is 40cm, and internal diameter is 30cm; The thickness of described natural core 2 is that 4cm, diameter are 30cm; The thickness of described up-hole plate 21 and orifice plate 22 is that 5mm, eyelet number are that 40 orders, diameter are 30cm.Described three baffle plates are circle, and its breach lacks shape for circle.The aperture 0.46mm of described first atomizer 31 and second atomizer 32.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (5)
1. an aqueous vapor that is used for rock core gas injection displacement test is disperseed injection device, it is characterized in that: described aqueous vapor disperses injection device to comprise a seal chamber, the middle part of sealing cavity laterally is provided with natural core, and the upper and lower end that is close to this natural core is respectively equipped with up-hole plate and orifice plate; Described natural core, up-hole plate and orifice plate are divided into upper chamber and lower chambers with cavity; The inside wall of described upper chamber is provided with first atomizer and is connected in first valve by pipeline, and this first valve is communicated with high-pressure water inlet; Be positioned at first atomizer top and laterally be provided with an overhead gage with breach along cavity; The top of described upper chamber is provided with the fluid issuing with the conducting of gas injection displacement test device, is provided with second valve and visible observation window in the fluid issuing; The inside wall of described lower chambers is provided with the generating laser that two parallel interval arrange, and described two generating lasers are electrically connected a fluid level controller, and described fluid level controller is distinguished conducting in lower chambers bottom and an overflowing liquid container by pipeline; One system's back pressure controller is also distinguished conducting in lower chambers bottom and described overflowing liquid container by pipeline; Described lower chambers bottom is communicated with the gas inlet by the 3rd valve; Be arranged in two generating laser tops and laterally be provided with baffle plate and the lower baffle plate with breach along lower chambers, described middle baffle plate and lower baffle plate are up and down at interval, the mode of left and right sides juxtaposition arranges; Described seal chamber is arranged in the insulating box.
2. the aqueous vapor for rock core gas injection displacement test as claimed in claim 1 is disperseed injection device, it is characterized in that: the inside wall of described upper chamber and first atomizer relatively are provided with one second atomizer, described second atomizer is connected in the 4th valve by pipeline, and the 4th valve is communicated with the chemical agent inlet.
3. the aqueous vapor for rock core gas injection displacement test as claimed in claim 2 is disperseed injection device, and it is characterized in that: the permeability of described natural core is 500-2000mD.
4. the aqueous vapor for rock core gas injection displacement test as claimed in claim 3 is disperseed injection device, and it is characterized in that: described seal chamber is cylindric, and its internal diameter is 30cm; The thickness of described natural core is that 4cm, diameter are 30cm; The thickness of described up-hole plate and orifice plate is that 5mm, eyelet number are that 40 orders, diameter are 30cm.
5. the aqueous vapor for rock core gas injection displacement test as claimed in claim 3 is disperseed injection device, it is characterized in that: the aperture 0.46mm of described first atomizer and second atomizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652086 CN203050688U (en) | 2012-11-30 | 2012-11-30 | Water-gas dispersion injection device for core gas injection displacement experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652086 CN203050688U (en) | 2012-11-30 | 2012-11-30 | Water-gas dispersion injection device for core gas injection displacement experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050688U true CN203050688U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220652086 Expired - Lifetime CN203050688U (en) | 2012-11-30 | 2012-11-30 | Water-gas dispersion injection device for core gas injection displacement experiment |
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| Country | Link |
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| CN (1) | CN203050688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015993A (en) * | 2012-11-30 | 2013-04-03 | 中国石油天然气股份有限公司 | Water-gas dispersion injection device for core gas injection displacement experiment |
| CN109632557A (en) * | 2019-01-22 | 2019-04-16 | 中国矿业大学 | A kind of gas-liquid two-phase saturation coal petrography sample experimental provision and saturation degree test method |
-
2012
- 2012-11-30 CN CN 201220652086 patent/CN203050688U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015993A (en) * | 2012-11-30 | 2013-04-03 | 中国石油天然气股份有限公司 | Water-gas dispersion injection device for core gas injection displacement experiment |
| CN103015993B (en) * | 2012-11-30 | 2015-07-08 | 中国石油天然气股份有限公司 | Water-gas dispersion injection device for core gas injection displacement experiment |
| CN109632557A (en) * | 2019-01-22 | 2019-04-16 | 中国矿业大学 | A kind of gas-liquid two-phase saturation coal petrography sample experimental provision and saturation degree test method |
| CN109632557B (en) * | 2019-01-22 | 2021-11-16 | 中国矿业大学 | Gas-liquid two-phase saturated coal rock sample experimental device and saturation testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130710 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |