CN203081436U - Multilayer laminated coalbed methane reservoir producing interlamination interference mechanism simulation device - Google Patents
Multilayer laminated coalbed methane reservoir producing interlamination interference mechanism simulation device Download PDFInfo
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- CN203081436U CN203081436U CN 201320108330 CN201320108330U CN203081436U CN 203081436 U CN203081436 U CN 203081436U CN 201320108330 CN201320108330 CN 201320108330 CN 201320108330 U CN201320108330 U CN 201320108330U CN 203081436 U CN203081436 U CN 203081436U
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Abstract
The utility model discloses a multilayer laminated coalbed methane reservoir producing interlamination interference mechanism simulation device. The device comprises a fluid inlet system, a core clamping system, an external temperature control system and a fluid outlet metering system. The device can be used for solving the following four technical problems: 1, simulating the commingling production pressure dynamic variations of reservoir stratums of different pressures; 2, simulating the influence of water saturation degree on the gas supply capability of each coalbed methane stratum; 3, simulating the influence of permeability on the gas supply capability of each coalbed methane stratum; and 4, analyzing the influence of a desorption-diffusion-transfusion coupling mechanism of each coalbed methane stratum to the gas supply capability of each coalbed methane stratum.
Description
Technical field
The utility model relates to interference mechanism analogue means between the stacked bed gas reservoir mined bed of a kind of multilayer.
Background technology
Through effort in nearly 30 years, Chinese coal gas industry was tentatively stepped into large-scale production, in the basin, Fuxin, basin, Qinshui, east, basin, Erdos edge etc. have realized commercialization exploitation, ground methane output 23 billion cubic meters in 2011.Yet, also there are some problems, such as basin, Qinshui, basin, Erdos east edge all to develop main coal seam, open down main coal seam after coal bed gas well output generally instead descend, therefore close and adopt the mutual interference mechanism of exploitation and be familiar with unclear for different coal group coal bed gas.On the other hand, it also is another importance of coal gas industry stable development that the cbm development base is taken in searching, multiple seam district, south exploratory well finds to have higher coal bed gas gas deliverability, yet how efficiently to develop coal bed gas for much 30 multilayer coal seam gas-bearing formation groups, need us to find out the payzone interference mechanism.Therefore, generally speaking, interference mechanism research between the stacked bed gas reservoir mined bed of multilayer is liberated the deep coal bed gas resource for us, need look for that to take over coal bed gas energy base significant.
On the other hand, at present conventional gas and oil field, the mode that a lot of oil fields all adopt big fit to adopt, yet owing to the vertical non-average in some areas producing well strong, that interlayer contradiction is big is unfavorable, also shortage is effectively analyzed theory and the corresponding experimental technique that multilayer is closed row's energy drives mode and the production curve is influenced.
Existing technical scheme embodies both ways, and the one: empirical formula or model that theoretical research obtains, as (2008,2011,2012) such as Qin Yong, Zhang Shiqi etc. (1996), bright ripple etc. (2007), (2011) such as distribution armies.The 2nd,, Numerical Analysis methods, as (2012) such as Fu Xuehai southern multilayer bed gas reservoir is closed row pressure power and disturbs and to have carried out numerical analysis,, some commercial softwares and for example, as the COMET3 of ARI company, FastCBM, CBMRS1.0, Eclipse or the like can close the row of adopting to the stacked bed gas reservoir of multilayer and adopt and can simulate, yet these softwares are only regarded the row of closing as the individual layer stack, still fail to consider phase mutual interference between the multilayer.
To sum up, as can be seen, close layer exploitation interference mechanism for the stacked bed gas reservoir of multilayer at present and numerical simulation analysis has been obtained some achievements, yet lack corresponding experimental analysis device, to multilayer interference mechanism heightened awareness, cause mechanism research, numerical simulation analysis to be difficult to the field practice combination.Therefore, press for the such device of exploitation one cover, it is blank to fill up this piece research.
The utility model content
Technical problem to be solved in the utility model is to provide interference mechanism analogue means between the stacked bed gas reservoir mined bed of a kind of multilayer at the deficiencies in the prior art.
The technical solution of the utility model is as follows:
Interference mechanism analogue means between the stacked bed gas reservoir mined bed of a kind of multilayer comprises: fluid flows into system, rock core grasping system, external temperature control system and fluid and flows out metering system;
Wherein, fluid inflow system comprises: gas cylinder (1), water tank (2), gas control valve (31), liquid control valve door (32), booster pump (4), atmospheric pressure meter (5), WG (6); The rock core grasping system comprises: sample room (7), sample seal rubber sleeve (8), confined pressure system (9); The external temperature control system comprises: water-bath switch (13), temperature control valve (TCV) (14), temperature indicator (15), sidepiece additional body (16); Core holding unit support (17); Water-bath switch (13) control water-bath device, the water-bath device is used for the simulate formation temperature condition; Fluid flows out metering system and comprises: outflow control valve door (33), gas-liquid separation device (10), gas flowmeter (11), fluid flowmeter (12);
By corrosion-resistant pipeline (18) gas cylinder (1), water tank (2) are connected, booster pump (4) is connected with WG (6) with atmospheric pressure meter (5); The outlet of rock core grasping system is connected with outflow control valve door (33) by corrosion-resistant pipeline (18), is connected to gas-liquid separation device (10), is connected respectively to gas flowmeter (11) and fluid flowmeter (12) from the gas-liquid separation device outlet by pipeline.
The utility model can solve following cubic surface technology problem: 1) simulation different pressures reservoir closes and adopts the pressure dynamic change; 2) the Simulated Water saturation ratio is to each coal seam gas-bearing formation gas supply capacity influence; 3) the simulation permeability influences coal seam gas-bearing formation gas supply capacity; 4) analyze each coal seam gas-bearing formation desorb-diffusion-seepage flow coupling mechanism to each coal seam gas-bearing formation gas supply capacity influence.
Description of drawings
Fig. 1 is an interference mechanism analogue means structural representation between the stacked bed gas reservoir mined bed of the utility model multilayer;
1 gas cylinder, 2 water tanks, 3 by-pass valve controls, 4 booster pumps, 5 atmospheric pressure meters, 6 WGs, 7 sample rooms, 8 sample seal rubber sleeves, 9 confined pressure systems, 10 gas-liquid separation devices, 11 gas flowmeters, 12 fluid flowmeters, 13 water-bath switches, 14 temperature control valve (TCV)s, 15 temperature indicators, 16 sidepiece additional body, 17 core holding unit supports, 18 corrosion-resistant pipelines.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is elaborated.
With reference to figure 1, the interference mechanism analogue means comprises between the stacked bed gas reservoir mined bed of multilayer: fluid flows into system, rock core grasping system, external temperature control system and fluid and flows out metering system, wherein, fluid inflow system comprises: gas cylinder 1, water tank 2, gas control valve 31, liquid control valve door 32, booster pump 4, atmospheric pressure meter 5, WG 6; Gas in the gas cylinder 1 can adopt CH separately mainly based on methane gas
4, also can dispose heterogeneity gas CH according to research purpose
4+ N
2+ CO
2Deng.
The rock core grasping system comprises: sample room 7, sample seal rubber sleeve 8, confined pressure system 9, sample seal rubber sleeve 8 will need to test the coal sample good seal, prevent to provide confined pressure oil to enter contaminated samples, the pressure of confined pressure system 9 simulation coal samples around underground being subjected to promptly adds confined pressure by this system to rock core;
The external temperature control system comprises: water-bath switch 13, temperature control valve (TCV) 14, temperature indicator 15, sidepiece additional body 16; The core holding unit support 17 that can open separately; Water-bath switch 13 control water-bath devices, the water-bath device is used for the simulate formation temperature condition.
Fluid flows out metering system and comprises: outflow control valve door 33, gas-liquid separation device 10, gas flowmeter 11, fluid flowmeter 12;
Earlier the long cylinder moulded coal heart is used sample seal rubber sleeve 8 good seals during experiment, put into sample room 7, put into confined pressure system 9, this mounted rock core grasping system is put in the external temperature control system, the rock core grasping system is put into the core holding unit support 17 that to open separately, this support adopts two semicircle hinge modes, after being put in the hinge, fix with drive screw with threaded hole on its utilization of closing, again rock core grasping system entrance and exit is drawn corrosion-resistant pipeline by sidepiece additional body 16 respectively the rock core grasping system is fixed; Use corrosion-resistant pipeline 18 that gas cylinder 1, water tank 2 are connected respectively, connect two logical by-pass valve controls then, be connected with WG 6 with atmospheric pressure meter 5 by pipeline from booster pump 4 again, be connected to rock core grasping system inlet by pipeline again; The outlet of rock core grasping system is connected with outflow control valve door 33 by corrosion-resistant pipeline 18, is connected to gas-liquid separation device 10, be connected respectively to gas flowmeter 11 and fluid flowmeter 12 by pipeline from the gas-liquid separation device outlet.
Sample sealing shroud 8 is sealed, in the sample room 7 of packing into, put into confined pressure system 9, this is placed in the external temperature system, use support 16 and 17 to fix; Further use pipeline one end to connect gas cylinder 1 and water tank 2, one end connects booster pump 4, draw pipeline from booster pump 4 again and connect atmospheric pressure meter 5 and WG 6, connect pipeline from two pressure gauges and be connected to rock core grasping system inlet, be connected with outflow control valve door 33 by pipeline from the outlet of rock core grasping system then, outflow control valve door 33 other ends connect gas-liquid separation device 10, are connected respectively to gas flowmeter 11 and fluid flowmeter 12 from gas-liquid separation device 10 outlets by pipeline.
According to experiment purpose, environment such as the residing temperature of sample, pressure under the simulation original position formation condition, experiment mainly is provided with gas, water pressure by regulating booster pump, by opening the water-bath switch in the external temperature control system temperature is set, and utilizes that the confined pressure system provides confined pressure in the rock core grasping system; According to confined pressure is set, slowly increase to preset pressure value by confined pressure system 9, open gas control valve 31, liquid control valve door 32 and booster pump 4 respectively after waiting to stablize, water in gas in the gas cylinder 1 and the water tank 2 is fed the rock core grasping system according to gas pressure that pre-sets and water pressure, by the time after the balance (＞24 hours), open outflow control valve door 33 and gas-liquid separation device 10, carry out the metering of effluent gases, water, palpus real time record time, confined pressure, G﹠W pressure, G﹠W flow in this process.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (1)
1. interference mechanism analogue means between the stacked bed gas reservoir mined bed of multilayer is characterized in that, comprising: fluid flows into system, rock core grasping system, external temperature control system and fluid and flows out metering system;
Wherein, fluid inflow system comprises: gas cylinder (1), water tank (2), gas control valve (31), liquid control valve door (32), booster pump (4), atmospheric pressure meter (5), WG (6); The rock core grasping system comprises: sample room (7), sample seal rubber sleeve (8), confined pressure system (9); The external temperature control system comprises: water-bath switch (13), temperature control valve (TCV) (14), temperature indicator (15), sidepiece additional body (16); Core holding unit support (17); Water-bath switch (13) control water-bath device, the water-bath device is used for the simulate formation temperature condition; Fluid flows out metering system and comprises: outflow control valve door (33), gas-liquid separation device (10), gas flowmeter (11), fluid flowmeter (12);
By corrosion-resistant pipeline (18) gas cylinder (1), water tank (2) are connected, booster pump (4) is connected with WG (6) with atmospheric pressure meter (5); The outlet of rock core grasping system is connected with outflow control valve door (33) by corrosion-resistant pipeline (18), is connected to gas-liquid separation device (10), is connected respectively to gas flowmeter (11) and fluid flowmeter (12) from the gas-liquid separation device outlet by pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108330 CN203081436U (en) | 2013-02-06 | 2013-02-06 | Multilayer laminated coalbed methane reservoir producing interlamination interference mechanism simulation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320108330 CN203081436U (en) | 2013-02-06 | 2013-02-06 | Multilayer laminated coalbed methane reservoir producing interlamination interference mechanism simulation device |
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| CN 201320108330 Expired - Fee Related CN203081436U (en) | 2013-02-06 | 2013-02-06 | Multilayer laminated coalbed methane reservoir producing interlamination interference mechanism simulation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385588A (en) * | 2015-10-29 | 2016-03-09 | 河南理工大学 | Coal biological flora migration simulation experiment set and method |
| CN106640060A (en) * | 2016-09-27 | 2017-05-10 | 长江大学 | Simulation experiment method of multi-layer commingling capacity of natural gas reservoir |
| CN109826621A (en) * | 2019-01-17 | 2019-05-31 | 西安科技大学 | A kind of coal bed gas commingling production air water two phase fluid flow experimental provision and test method |
| CN115095320A (en) * | 2022-07-06 | 2022-09-23 | 西南石油大学 | Experimental device for simulating high-low pressure double-layer combined mining of gas reservoir |
-
2013
- 2013-02-06 CN CN 201320108330 patent/CN203081436U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385588A (en) * | 2015-10-29 | 2016-03-09 | 河南理工大学 | Coal biological flora migration simulation experiment set and method |
| CN105385588B (en) * | 2015-10-29 | 2017-06-16 | 河南理工大学 | Biological flora Migration Simulation experimental provision and method in coal |
| CN106640060A (en) * | 2016-09-27 | 2017-05-10 | 长江大学 | Simulation experiment method of multi-layer commingling capacity of natural gas reservoir |
| CN106640060B (en) * | 2016-09-27 | 2020-03-17 | 长江大学 | Simulation experiment method for natural gas reservoir multilayer commingled production capacity |
| CN109826621A (en) * | 2019-01-17 | 2019-05-31 | 西安科技大学 | A kind of coal bed gas commingling production air water two phase fluid flow experimental provision and test method |
| CN109826621B (en) * | 2019-01-17 | 2022-05-17 | 西安科技大学 | Coal bed gas multilayer combined gas-water two-phase seepage experimental device and test method |
| CN115095320A (en) * | 2022-07-06 | 2022-09-23 | 西南石油大学 | Experimental device for simulating high-low pressure double-layer combined mining of gas reservoir |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20140206 |