CN202628051U - Physical simulation device for substitution of coal bed methane by carbon dioxide - Google Patents
Physical simulation device for substitution of coal bed methane by carbon dioxide Download PDFInfo
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- CN202628051U CN202628051U CN2012202271165U CN201220227116U CN202628051U CN 202628051 U CN202628051 U CN 202628051U CN 2012202271165 U CN2012202271165 U CN 2012202271165U CN 201220227116 U CN201220227116 U CN 201220227116U CN 202628051 U CN202628051 U CN 202628051U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/70—Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells
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Abstract
The utility model discloses a physical simulation device for substitution of coal bed methane by carbon dioxide. The physical simulation device comprises an injection system, a reaction device and a tail gas absorption device; the reaction device comprises a test sample clamp arranged in a thermostat, the test sample clamp comprises a confining pressing sleeve and end covers arranged at two ends of the confining pressing sleeve, and a sample bin is formed in a middle cavity of the confining pressing sleeve; an inflow pipeline is hermetically arranged on one end cover, and an outflow pipeline is hermetically disposed on the other end cover; a manual confining pressure pump for applying confining pressure on the confining pressing sleeve is hermetically connected to the outer side of the confining pressing sleeve; the injection system comprises a nitrogen gas cylinder, a methane gas cylinder, a carbon dioxide gas cylinder and a constant-flux pump; and the tail gas absorption device comprises a carbon dioxide absorption device, a drying device and a methane absorption device which are sequentially communicated with the outflow pipeline of the reaction device. The physical simulation device can effectively simulate substitution of the coal bed methane by the carbon dioxide to improve recovery efficiency, factors affecting a substitution effect can be effectively analyzed, and effective evidence can be provided.
Description
Technical field
The utility model is to adopt carbon dioxide replacement to improve the device of coal bed gas recovery ratio about a kind of simulation means of utilizing to coalbed methane reservoir, relates in particular to a kind of physical simulating device of carbon dioxide replacement coal bed methane.
Background technology
At present, China carries out the mechanism research and the effect assessment of coal bed gas raising recovery ratio and mainly carries out through two kinds of approach, and a kind of is the research of mining site experiment well, and another kind is the reservoir numerical simulation study.
Produce the experiment well research room and be gas well is improved the accurate means of recovery ratio effect assessment, still, it is higher to produce the expense that experiment well estimates, and risk is also bigger simultaneously; Improve the recovery ratio experiment if fail the recovery ratio of reservoir is brought positive effect, then possibly have a strong impact on the production capacity of reservoir, reduce the recoverable reserves of reservoir, therefore, the selection of experiment well research is prudent relatively, and adopted probability is less.The reservoir numerical simulation is most economical capability forecasting and evaluation means, has good repeatability, operates also simply relatively, and still, the order of accuarcy of numerical simulation be difficult to guarantee; If expect a desirable analog result, true reservoir data must be arranged, the reservoir production status, structure meets the geological model of truth most and selects correct production system, and there is certain limitation in visible its; At first,, there is not sufficient data to make up an accurate geological model and rational production system for new well, therefore, the difficult assurance of the accuracy of simulation; Secondly, reservoir simulation has multi-solution, and identical data possibly draw different model, and the credibility of analog result is reduced.
Thus, the inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes a kind of physical simulating device of carbon dioxide replacement coal bed methane, to overcome the defective of prior art.
The utility model content
The purpose of the utility model is to provide a kind of physical simulating device of carbon dioxide replacement coal bed methane; Adopt the mode of laboratory experiment; Simulate the raising recovery ratio process of carbon dioxide replacement coal bed methane effectively; Can effectively analyze its replacement result influence factor, this analogue means can more approach on-the-spot carbon dioxide replacement methane reservoir actual conditions.
Another purpose of the utility model is to provide a kind of physical simulating device of carbon dioxide replacement coal bed methane, and this analogue means has higher operability, and cost is low; It can simulate a plurality of processes, for the research of carbon dioxide replacement methane provides effective foundation.
The purpose of the utility model is achieved in that a kind of physical simulating device of carbon dioxide replacement coal bed methane, and this analogue means is made up of injected system, reaction unit and device for absorbing tail gas;
Said reaction unit comprises the specimen holder that is arranged in the insulating box, and specimen holder constitutes middle the inner chamber formation sample bin of said confined pressure cover by confined pressure cover and the end cap that is arranged on confined pressure cover two ends; Sealing is provided with inflow line on the said end cap, and the other end covers sealing and is provided with the outflow pipeline; The said confined pressure cover outside is tightly connected and one adds the manual confined pressure pump of confined pressure to the confined pressure cover;
Said injected system comprises nitrogen cylinder, methane gas cylinder, dioxide bottle and the constant-flux pump that is communicated with the inflow line of reaction unit respectively;
Said device for absorbing tail gas comprises absorption unit of dioxide carbon, drying device and the methane adsorption device that order is communicated with the outflow pipeline of reaction unit.
In a preferred embodiments of the utility model, said specimen holder is common core holding unit.
In a preferred embodiments of the utility model, the arrival end of said specimen holder, the port of export and confined pressure filling point all are equipped with pressure sensor, and pressure sensor connects with computer with holding wire.
In a preferred embodiments of the utility model, said constant-flux pump is connected in first control valve by pipeline, and first control valve is connected in a six-way valve; Nitrogen cylinder, methane gas cylinder and the dioxide bottle reducing valve through separately respectively are connected in said six-way valve again; Said six-way valve outlet is connected in the inflow line of reaction unit through second control valve.
In a preferred embodiments of the utility model; Said absorption unit of dioxide carbon comprises a sealed beaker; Fill the calcium chloride water-bath that calcium chloride water constitutes in the sealed beaker, be provided with an inverted funnel in the sealed beaker, inverted funnel lower port is inserted in the calcium chloride water-bath; Inverted funnel top is communicated with the outflow pipeline of reaction unit through one the 3rd control valve.
In a preferred embodiments of the utility model, said drying device is an airtight container, and anhydrous cupric sulfate is housed in the airtight container; Sealing is provided with ingress pipe and delivery line in the airtight container; Ingress pipe is communicated in the sealed beaker top; Delivery line is communicated with the methane adsorption device.
In a preferred embodiments of the utility model, said methane adsorption device absorbs air bag by a tail gas and constitutes.
In a preferred embodiments of the utility model, said specimen holder integral body is in sealing state; Be provided with laboratory sample in the sample bin, laboratory sample is closely wrapped up by the confined pressure cover.
In a preferred embodiments of the utility model, said laboratory sample is the coal heart.
From the above mentioned; The physical simulating device of the utility model carbon dioxide replacement coal bed methane; Adopt the mode of laboratory experiment; Simulate the raising recovery ratio process of carbon dioxide replacement coal bed methane effectively, can effectively analyze its replacement result influence factor, this analogue means can more approach on-the-spot carbon dioxide replacement methane reservoir actual conditions; It can simulate a plurality of processes, for the research of carbon dioxide replacement methane provides effective foundation.This analogue means has higher operability, and cost is low.
Description of drawings
Following accompanying drawing only is intended to the utility model is done schematic illustration and explanation, does not limit the scope of the utility model.Wherein:
Fig. 1: be the physical simulating device structural representation of the utility model carbon dioxide replacement coal bed methane.
The specific embodiment
Understand for technical characterictic, purpose and effect to the utility model have more clearly, contrast the specific embodiment of description of drawings the utility model at present.
As shown in Figure 1.The utility model proposes a kind of physical simulating device 100 of carbon dioxide replacement coal bed methane, and this analogue means 100 is made up of injected system 1, reaction unit 2 and device for absorbing tail gas 3;
Said reaction unit 2 comprises the specimen holder 22 that is arranged in the insulating box 21, and said specimen holder 22 is common core holding unit (a JHR type); Specimen holder 22 by confined pressure cover 221 be arranged on confined pressure and overlap the end cap 222 at 221 two ends and constitute middle the inner chamber formation sample bin of said confined pressure cover 221; Sealing is provided with inflow line 23 on the said end cap 222, and sealing is provided with and flows out pipeline 24 on another end cap 222; Said confined pressure is overlapped 221 outsides and is tightly connected and one adds the manual confined pressure pump 25 of confined pressure to the confined pressure cover; Specimen holder 22 integral body are in sealing state, are provided with laboratory sample in the sample bin, and laboratory sample is closely wrapped up by confined pressure cover 221.
Said injected system 1 comprises nitrogen cylinder 11, methane gas cylinder 12, dioxide bottle 13 and the constant-flux pump 14 that is communicated with the inflow line 23 of reaction unit 2 respectively; Constant-flux pump 14 is used to simulate reservoir regimen condition, and said each gas cylinder is gas cylinder; The constant-flux pump the injecting process is to inject formation water through it to the test specimen clamper, thereby reaches simulation reservoir water distribution situation, reduces the difference of experiment and actual conditions; Above-mentioned each gas cylinder gas injection process is promptly simulated the process that reservoir becomes Tibetan process and on-the-spot carbon dioxide replacement methane, adopts gas with various to inject step by step and realizes simulation process.
Said device for absorbing tail gas 3 comprises absorption unit of dioxide carbon 31, drying device 32 and the methane adsorption device 33 that order is communicated with the outflow pipeline 24 of reaction unit 2; Can effectively prevent noxious gas emission, accurately draw the methane tolerance that displaces simultaneously, calculate ultimate recovery.
From the above mentioned; The physical simulating device of the utility model carbon dioxide replacement coal bed methane; Adopt the mode of laboratory experiment; Simulate the raising recovery ratio process of carbon dioxide replacement coal bed methane effectively, can effectively analyze its replacement result influence factor, this analogue means can more approach on-the-spot carbon dioxide replacement methane reservoir actual conditions; It can simulate a plurality of processes, for the research of carbon dioxide replacement methane provides effective foundation.This analogue means has higher operability, and cost is low.
In this embodiment, the arrival end of said specimen holder 22, the port of export and confined pressure filling point all are equipped with pressure sensor 223, and pressure sensor 223 usefulness holding wires connect with computer 26, are convenient to the control and the reading of pressure.
In this embodiment, said constant-flux pump 14 is connected in first control valve, 15, the first control valves 15 by pipeline and is connected in a six-way valve 16; Nitrogen cylinder 11, methane gas cylinder 12 and dioxide bottle 13 also respectively the reducing valve 111,121 and 131 through separately be connected in said six-way valve 16; Said six-way valve 16 outlets are connected in the inflow line 23 of reaction unit 2 through one second control valve 17.In the simulation process,, control different analog case through controlling different valve switch situation.
In this embodiment; Said absorption unit of dioxide carbon 31 comprises a sealed beaker 311; Fill the calcium chloride water-bath 312 that calcium chloride water constitutes in the sealed beaker 311; Sealed beaker 311 top seals are provided with an inverted funnel 313, and inverted funnel 313 lower port are inserted in the calcium chloride water-bath 312, guarantee the absorbing carbon dioxide of maximum area; Inverted funnel 313 tops are communicated with the outflow pipeline 24 of reaction unit 2 through one the 3rd control valve 34.
In this embodiment, said drying device 32 is an airtight container, and anhydrous cupric sulfate is housed in the airtight container; Sealing is provided with ingress pipe 321 and delivery line 322 in the airtight container; Ingress pipe 321 is communicated in sealed beaker 311 tops; Delivery line 322 is communicated with methane adsorption device 33.In this embodiment, said methane adsorption device 33 absorbs air bag by a tail gas and constitutes, and is convenient to the detection of gas volume.
Below in conjunction with accompanying drawing the analogue means that utilizes the utility model being carried out corresponding experimentation further specifies.
One, tightness detects:
The tightness testing goal is the airtight degree that guarantees whole system, and then improves the accuracy of experimental data.Concrete experimental procedure is following: (1) couples together laboratory apparatus according to shown in Figure 1, six-way valve 16 is communicated with nitrogen gas cylinder 11; The sample bin of (2) laboratory sample (the coal heart) being packed into and being made up of confined pressure cover 221, and two end caps 222 of confined pressure cover 221 are tightened, assurance device is firm; (3) pressure sensor 223 on the confined pressure cover 221 is connected, and confined pressure is adjusted to experiment condition, then confined pressure is overlapped 221 airtightly, guarantee confined pressure steady; (4) all valves in will testing all cut out, and then according to shown in Figure 1, the six-way valve 16 and second control valve 17 are opened, and open nitrogen gas cylinder 11 simultaneously, and adjustment gas cylinder reducing valve 111 makes injection pressure reach 1MPa; (5) inject one section draw between after, close nitrogen gas cylinder 11, make whole experimental system stablize a period of time; Observe the variation of pressure monitor system, if do not change, the illustrative system tightness is better; If pressure reduces, the illustrative system tightness is relatively poor, need further detect; (6) the 3rd control valve 34 is opened, the gas in the sample bin is discharged.
Two, simulation reservoir water distribution:
Because all have certain formation water in most of coal seam, the distribution of formation water is relevant with the characteristic of reservoir,, draw reservoir water content and basic distribution situation through field data and the component analysis of the coal heart.Concrete experimentation is following: (1) empties the gas in the device for absorbing tail gas 3; (2) according to shown in Figure 1, six-way valve 16 is communicated with constant-flux pump 14, second control valve 17 and the 3rd control valve 34 are opened, open constant-flux pump 14 simultaneously, adopt low flow velocity that formation water is injected the coal heart; (3) inject termination of pumping after 2～3 hours continuously, first control valve 15 is closed, stablized 6 hours; (4) after sample bin pressure discharges, close second control valve 17 and the 3rd control valve 34.
Three, process simulation is hidden in the methane pneumatolytic:
Through injecting a certain amount of methane gas, it is stored in the coal heart porous media, leave standstill a period of time then after, impel methane partly to be adsorbed in sample skeleton surface, part is in free state.Its concrete experimentation is following: (1) empties the gas in the device for absorbing tail gas 3; (2) according to shown in Figure 1, six-way valve 16 is communicated with methane gas cylinder 12, gas cylinder reducing valve 121, second control valve 17 and the 3rd control valve 34 are opened, adjust gas cylinder reducing valve 121 simultaneously, make its injection pressure keep 1MPa stable; (3) inject continuously after several hours, when large-scale specimen holder 22 inlet pressures and outlet pressure are basic identical, second control valve 17 and the 3rd control valve 34 are closed, close methane gas cylinder 12 simultaneously; (4) sample bin was closed 6 hours, make methane gas fully be adsorbed on coal heart porous media surface; (5) pressure when sample bin no longer changes, and explains that adsorption process finishes basically.
Four, carbon dioxide replacement methane simulation:
When methane gas after specimen surface is realized adsorbing into the Tibetan, injecting carbon dioxide at first is that free methane displacement from porous media is come out, then, through stablize replacement process, realization carbon dioxide replacement methane process.Concrete experimentation is following: (1) empties the gas in the device for absorbing tail gas 3; (2) according to shown in Figure 1, six-way valve 16 is communicated with CO 2 high pressure gas cylinder 13, second control valve 9 and the 3rd control valve 34 are opened, adjust gas cylinder reducing valve 131 simultaneously, make its injection pressure keep 1MPa stable; (3) inject continuously after several hours, when large-scale specimen holder 22 inlet pressures and outlet pressure are basic identical, second control valve 17 and the 3rd control valve 34 are closed, simultaneously closing carbon dioxide gas cylinder 13; (4) through device for absorbing tail gas 3, measure the displacement amount of carbon dioxide discharge and methane gas, simultaneously, calculate the total amount of injecting carbon dioxide through injection pressure; (5) sample bin was closed 6 hours, make to be adsorbed on sample porous media surface methane gas and fully to be replaced by carbon dioxide; (6) pressure when sample bin no longer fluctuates, and explains that replacement process finishes basically.(7) CO 2 high pressure gas cylinder 13, second control valve 17 and the 3rd control valve 34 are opened, adjusted gas cylinder reducing valve 131 simultaneously, make its injection pressure keep 1MPa stable, replace several hours.After no methane flows out, CO 2 high pressure gas cylinder 13 is closed.Inject total amount through calculating later stage displacement carbon dioxide, and the amount of carbon dioxide of collecting and methane; (8) instrument is pulled down, placed after the cleaning; (9) use amount of carbon dioxide in the calculating replacement process.
The utility model compared with prior art has following beneficial effect: (1) realizes that through the parallel operation of constant-flux pump and three gas cylinders process simulation and carbon dioxide replacement methane process simulation are hidden in the simulation of reservoir water distribution, the methane pneumatolytic of analogue means.Improve the tightness of system simultaneously through the simulation pipeline of confined pressure, reach the confined pressure condition of reservoir.(2) adopt the insulating box condition, kept the temperature of experimentation effectively, the temperature in the raising simulation process and the degree of approximation of reservoir conditions temperature.(3) device for absorbing tail gas separates residual gas effectively, and simultaneously with the carbon dioxide gas bulk absorption, methane gas is collected in after super-dry in the device, can measure its content.(4) this physical simulating device has higher operability, and simultaneously, cost is lower.In addition, it can simulate a plurality of processes, for the research of carbon dioxide replacement methane provides effective foundation.
The above is merely the schematic specific embodiment of the utility model, is not in order to limit the scope of the utility model.Any those skilled in the art, equivalent variations of under the prerequisite of design that does not break away from the utility model and principle, having done and modification all should belong to the scope that the utility model is protected.
Claims (9)
1. the physical simulating device of a carbon dioxide replacement coal bed methane, it is characterized in that: this analogue means is made up of injected system, reaction unit and device for absorbing tail gas;
Said reaction unit comprises the specimen holder that is arranged in the insulating box, and specimen holder constitutes middle the inner chamber formation sample bin of said confined pressure cover by confined pressure cover and the end cap that is arranged on confined pressure cover two ends; Sealing is provided with inflow line on the said end cap, and the other end covers sealing and is provided with the outflow pipeline; The said confined pressure cover outside is tightly connected and one adds the manual confined pressure pump of confined pressure to the confined pressure cover;
Said injected system comprises nitrogen cylinder, methane gas cylinder, dioxide bottle and the constant-flux pump that is communicated with the inflow line of reaction unit respectively;
Said device for absorbing tail gas comprises absorption unit of dioxide carbon, drying device and the methane adsorption device that order is communicated with the outflow pipeline of reaction unit.
2. the physical simulating device of carbon dioxide replacement coal bed methane as claimed in claim 1 is characterized in that: said specimen holder is common core holding unit.
3. the physical simulating device of carbon dioxide replacement coal bed methane as claimed in claim 1 is characterized in that: the arrival end of said specimen holder, the port of export and confined pressure filling point all are equipped with pressure sensor, and pressure sensor connects with computer with holding wire.
4. the physical simulating device of carbon dioxide replacement coal bed methane as claimed in claim 1 is characterized in that: said constant-flux pump is connected in first control valve by pipeline, and first control valve is connected in a six-way valve; Nitrogen cylinder, methane gas cylinder and the dioxide bottle reducing valve through separately respectively are connected in said six-way valve again; Said six-way valve outlet is connected in the inflow line of reaction unit through second control valve.
5. the physical simulating device of carbon dioxide replacement coal bed methane as claimed in claim 1; It is characterized in that: said absorption unit of dioxide carbon comprises a sealed beaker; Fill the calcium chloride water-bath that calcium chloride water constitutes in the sealed beaker; Be provided with an inverted funnel in the sealed beaker, inverted funnel lower port is inserted in the calcium chloride water-bath; Inverted funnel top is communicated with the outflow pipeline of reaction unit through one the 3rd control valve.
6. the physical simulating device of carbon dioxide replacement coal bed methane as claimed in claim 5 is characterized in that: said drying device is an airtight container, and anhydrous cupric sulfate is housed in the airtight container; Sealing is provided with ingress pipe and delivery line in the airtight container; Ingress pipe is communicated in the sealed beaker top; Delivery line is communicated with the methane adsorption device.
7. the physical simulating device of carbon dioxide replacement coal bed methane as claimed in claim 6 is characterized in that: said methane adsorption device absorbs air bag by a tail gas and constitutes.
8. the physical simulating device of carbon dioxide replacement coal bed methane as claimed in claim 1 is characterized in that: said specimen holder integral body is in sealing state; Be provided with laboratory sample in the sample bin, laboratory sample is closely wrapped up by the confined pressure cover.
9. the physical simulating device of carbon dioxide replacement coal bed methane as claimed in claim 8 is characterized in that: said laboratory sample is the coal heart.
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| CN2012202271165U CN202628051U (en) | 2012-05-18 | 2012-05-18 | Physical simulation device for substitution of coal bed methane by carbon dioxide |
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| CN2012202271165U CN202628051U (en) | 2012-05-18 | 2012-05-18 | Physical simulation device for substitution of coal bed methane by carbon dioxide |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132971A (en) * | 2013-03-11 | 2013-06-05 | 河南理工大学 | Test simulating device for improving recovery rate of coal bed methane by injecting carbon dioxide |
| CN103711483A (en) * | 2014-01-13 | 2014-04-09 | 北京源海威科技有限公司 | Simulation system and simulation method of hydrocarbon generation, adsorption and desorption of shale |
| CN104453878A (en) * | 2014-11-12 | 2015-03-25 | 河南理工大学 | Multi-element gas displacement coal bed methane testing device based on process real-time tracking control |
| CN104569316A (en) * | 2015-01-23 | 2015-04-29 | 中国矿业大学 | Simulation test device for geochemical effects of CO2 injection and forced mining of coal-bed gas |
| CN104569317A (en) * | 2015-01-23 | 2015-04-29 | 中国矿业大学 | Simulation test method for geochemical effects of CO2 injection and forced mining of coal-bed gas |
| CN105628811A (en) * | 2015-12-27 | 2016-06-01 | 西南石油大学 | Testing device for competitive adsorption of supercritical CO2 and CH4 in shale and testing method of device |
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| CN110608022A (en) * | 2019-08-28 | 2019-12-24 | 中联煤层气有限责任公司 | Carbon dioxide landfill method for increasing yield of coal bed gas reservoir |
| CN113338874A (en) * | 2021-04-13 | 2021-09-03 | 大连理工大学 | CO (carbon monoxide)2Alternately injecting inhibitor to produce methane and store CO2Simulation device and method |
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| CN103132971B (en) * | 2013-03-11 | 2015-08-12 | 河南理工大学 | Carbon dioxide injection improves the test simulator of coal bed methane recovery rate |
| CN103132971A (en) * | 2013-03-11 | 2013-06-05 | 河南理工大学 | Test simulating device for improving recovery rate of coal bed methane by injecting carbon dioxide |
| CN103711483B (en) * | 2014-01-13 | 2017-01-11 | 北京源海威科技有限公司 | Simulation system and simulation method of hydrocarbon generation, adsorption and desorption of shale |
| CN103711483A (en) * | 2014-01-13 | 2014-04-09 | 北京源海威科技有限公司 | Simulation system and simulation method of hydrocarbon generation, adsorption and desorption of shale |
| CN104453878A (en) * | 2014-11-12 | 2015-03-25 | 河南理工大学 | Multi-element gas displacement coal bed methane testing device based on process real-time tracking control |
| CN104569316A (en) * | 2015-01-23 | 2015-04-29 | 中国矿业大学 | Simulation test device for geochemical effects of CO2 injection and forced mining of coal-bed gas |
| CN104569317A (en) * | 2015-01-23 | 2015-04-29 | 中国矿业大学 | Simulation test method for geochemical effects of CO2 injection and forced mining of coal-bed gas |
| CN105628811A (en) * | 2015-12-27 | 2016-06-01 | 西南石油大学 | Testing device for competitive adsorption of supercritical CO2 and CH4 in shale and testing method of device |
| CN107907464A (en) * | 2017-11-09 | 2018-04-13 | 西南石油大学 | A kind of pressure break infiltration stone cement slurry property measurement device and method |
| CN107907464B (en) * | 2017-11-09 | 2020-01-24 | 西南石油大学 | Device and method for measuring performance of permeable stone cement slurry for fracturing |
| CN108181201A (en) * | 2017-12-15 | 2018-06-19 | 浙江海洋大学 | One kind passes through CO2The experimental method and experimental provision of replacement exploitation shale gas |
| CN110552692A (en) * | 2019-08-06 | 2019-12-10 | 山东科技大学 | Simulation method for gaseous hydrocarbon carbon isotope exchange between coal rock and tight sandstone |
| CN110608022A (en) * | 2019-08-28 | 2019-12-24 | 中联煤层气有限责任公司 | Carbon dioxide landfill method for increasing yield of coal bed gas reservoir |
| CN113338874A (en) * | 2021-04-13 | 2021-09-03 | 大连理工大学 | CO (carbon monoxide)2Alternately injecting inhibitor to produce methane and store CO2Simulation device and method |
| CN113338874B (en) * | 2021-04-13 | 2022-12-27 | 大连理工大学 | CO (carbon monoxide) 2 Alternately injecting inhibitor to produce methane and store CO 2 Simulation device and method |
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