CN115561279A - Simulation experiment device for formation deep gas-heat co-production and use method - Google Patents
Simulation experiment device for formation deep gas-heat co-production and use method Download PDFInfo
- Publication number
- CN115561279A CN115561279A CN202211545699.0A CN202211545699A CN115561279A CN 115561279 A CN115561279 A CN 115561279A CN 202211545699 A CN202211545699 A CN 202211545699A CN 115561279 A CN115561279 A CN 115561279A
- Authority
- CN
- China
- Prior art keywords
- gas
- water
- stratum
- simulated
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004088 simulation Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 title claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 116
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000009933 burial Methods 0.000 claims description 33
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 230000035699 permeability Effects 0.000 claims description 9
- 238000002474 experimental method Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 72
- 239000003345 natural gas Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000658 coextraction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to a simulation experiment device for deep gas-heat co-production of a stratum and a using method thereof, and the simulation experiment device comprises a water and gas supply unit, at least one simulated stratum cavity and a detection unit which are sequentially connected, wherein the water and gas supply unit comprises a water supply device and a gas supply device, and the water supply device and the gas supply device are connected in parallel to simulate the inlet of the stratum cavity; a geological sample is arranged in each simulated stratum cavity, and a heating device and a confining pressure device are arranged outside each simulated stratum cavity and are used for enabling the simulated stratum cavities to reach the temperature and confining pressure corresponding to the simulated stratum; the detection unit comprises an air passage pipeline and a water passage pipeline which are connected with an outlet of the simulated stratum cavity in parallel, a detector and a liquid flowmeter are arranged on the water passage pipeline and used for measuring and calculating the gas production quantity, and a gas flowmeter is arranged on the air passage pipeline and used for detecting the gas production quantity.
Description
Technical Field
The invention belongs to the technical field of natural gas and geothermal exploration and development, and particularly relates to a simulation experiment device for deep gas-thermal co-extraction of a stratum and a using method.
Background
Geothermal resources are precious mineral resources integrating heat collection, mine and water, are green, low-carbon and recyclable renewable energy, have the characteristics of being extremely stable and free from the influence of factors such as time, season, climate and the like, can supplement or replace the traditional urban heating system to a great extent, serve as an energy source for heating of urban residents, and are known as one of green novel energy sources with development value in the 21 st century.
The natural gas is buried deeply in the deep stratum, the coal bed gas is buried deeply in the deep stratum over 1500m, and the shale gas is buried deeply over 3500m. The great burial depth leads to higher reservoir temperature of the gas reservoir, and when the burial depth exceeds 2400m, the reservoir temperature exceeds 100 ℃. At present, shale gas needs to be subjected to stages of water drainage, pressure reduction, gas production and the like, and when the gas reservoir development scale is large, the scale of a fracturing fluid is basically more than tens of thousands of directions. The water produced by drainage and production carrying heat in the reservoir is rarely and effectively utilized, which is a great waste of geothermal resources.
Along with the increase of the buried depth, the ground stress is gradually increased, and reservoir fractures are easy to close, so that the permeability of the reservoir is reduced, and the production of gas and water is not facilitated. But the burial is shallow, the temperature value of the reservoir is low, and the available geothermal resources are less. How to realize the co-exploitation of the natural gas reservoir and the geothermal energy, the two resources are utilized to the maximum extent, the relation between the geothermal temperature and the permeability is considered, a coupling mechanism of the geothermal temperature and the permeability at different depths is established, theoretical guidance is provided for efficiently developing and utilizing geothermal resources, and the method is a key difficult problem of research of the patent.
Disclosure of Invention
Aiming at the problems, the invention provides a simulation experiment device for the gas-heat co-exploitation of the deep part of the stratum and a using method thereof, which are used for simulating the co-exploitation conditions of natural gas reservoirs and geothermal resources with different buried depths, disclosing a coupling mechanism of geothermal temperature and permeability under different depth conditions and obtaining the optimal depth or depth interval for gas and heat co-exploitation.
On the first hand, the simulation experiment device for the gas-heat co-production at the deep part of the stratum comprises a water and gas supply unit, at least one simulated stratum cavity and a detection unit which are sequentially connected, wherein the water and gas supply unit comprises a water supply device and a gas supply device, and the water supply device and the gas supply device are connected in parallel to simulate the inlet of the stratum cavity; a geological sample is arranged in each simulated stratum cavity, and a heating device and a confining pressure device are arranged outside each simulated stratum cavity and are used for enabling the simulated stratum cavities to reach the temperature and confining pressure corresponding to the simulated stratum;
the detection unit comprises an air passage pipeline and a water passage pipeline which are connected with an outlet of the simulated stratum cavity in parallel, a detector and a liquid flowmeter are arranged on the water passage pipeline and used for measuring and calculating the gas production quantity, and a gas flowmeter is arranged on the air passage pipeline and used for detecting the gas production quantity.
Optionally, water supply installation includes water receiver, booster pump and first pressure gauge, and the export of booster pump passes through the output pipeline of first pressure gauge connection water receiver, for the water pressure boost of water receiver output, the simulation fracture water.
Optionally, the gas supply device includes a gas cylinder and a second pressure gauge, the second pressure gauge is arranged on an output gas path of the gas cylinder, and methane gas is stored in the gas cylinder and used for simulating coal bed gas or shale gas output by the stratum.
Optionally, the confining pressure device includes a confining pressure pump and a third pressure gauge, and the confining pressure pump is connected to the inlet or the outlet of the simulated formation cavity through the third pressure gauge, so that the internal pressure of the simulated formation cavity reaches the formation confining pressure of the real depth.
Optionally, be equipped with deareator and gas flowmeter on the gas circuit pipeline in proper order, be equipped with detector and fluidflowmeter on the water route pipeline in proper order, the detector is heat exchanger, and the gas circuit pipeline is established in the top of water route pipeline.
When a commingled production experiment needs to be carried out on a plurality of strata with different burial depths simultaneously, a plurality of simulated stratum cavities are connected in parallel, and each simulated stratum cavity is provided with a corresponding heating device and a confining pressure device and is used for enabling each simulated stratum cavity to set corresponding confining pressure and temperature according to the respective burial depth (namely the burial depth); the water supply device and the air supply device are connected with the inlets of the plurality of simulated formation cavities in parallel, and the air channel pipeline and the water channel pipeline are connected with the outlets of the plurality of simulated formation cavities in parallel.
In a second aspect, the invention further provides a use method of the simulation experiment device for deep gas-thermal co-production in the stratum, which comprises the following steps:
(1) Calculating the confining pressure of the stratum with different burial depths according to a vertical stress estimation equation, and calculating the temperature of the stratum with different burial depths according to a relation equation of the ground temperature and the depth;
(2) Simulating a stratum with a buried depth by using the simulated stratum cavity, enabling the temperature of the simulated stratum cavity to reach the stratum temperature corresponding to the buried depth calculated in the step (1) by using a heating device, and enabling the confining pressure of the simulated stratum cavity to reach the stratum confining pressure corresponding to the buried depth calculated in the step (1) by using a confining pressure device;
(3) Starting a water supply device and a gas supply device to supply water and gas to the simulated formation cavity; simultaneously starting a gas flowmeter of the gas path pipeline, a detector of the water path pipeline and a liquid flowmeter;
(4) After the state of the simulation experiment device is stable, recording the flow of the liquid flowmeter and the temperature of hot water entering and exiting the detector, and calculating the heat value Q of the hot water;
(5) And (5) simulating the stratum with different burial depths by utilizing the simulated stratum cavity, and repeating the steps (2) to (4) to obtain the coupling mechanism of the geothermal temperature and the permeability under the condition of different burial depths.
In the step (1), the vertical reaction is carried outThe force estimation equation is S v =0.027 × H, and the equation of the relationship between the ground temperature and the depth is T =0.036 × H +14.
Optionally, in the step (3), the pressure provided by the booster pump of the water supply device is 0.5-2MPa, the pressure provided by the gas cylinder of the gas supply device is 0.5-2MPa, and preferably, the water supply pressure and the gas supply pressure are the same.
Optionally, in the step (3), the gas-water separator, the gas flowmeter, the heat exchanger and the liquid flowmeter are started, so that the separated gas flows through the gas flowmeter, the cold medium and the hot water flow through the heat exchanger, and the hot water flows through the liquid flowmeter after heat exchange.
Optionally, in the step (4), the simulation experiment device needs to operate for 30-40min to reach a stable state.
In the step (4), a calculation formula of the calorific value Q of the hot water is as follows:
Q=C×ρ water (I) ×L×t×(T g -T h )
Wherein Q is the calorific value, J; c is the specific heat capacity of water, 4.2X 10 3 J/(kg•℃)；ρ Water (W) 1X 10 is the density of water 3 kg/m 3 (ii) a L is the flow rate of hot water, m 3 Min; t is experimental time, min; t is g The temperature of hot water entering a heat exchanger is measured at DEG C; t is h The temperature of the hot water flowing out of the heat exchanger is in DEG C.
Optionally, in the step (5), the water supply pressure in the step (3) is the same during different burial depth experiments, and the air supply pressure is the same during different burial depth experiments;
and finding the burial depth or the burial depth interval corresponding to the maximum heat value Q by comparing the heat values Q of the obtained hot water at different burial depths. In the invention, the permeability of the stratum with different burial depths influences the gas and water production, the calculation formula of the calorific value Q already includes the flow of hot water, namely the calorific value Q includes the consideration of permeability factors.
Drawings
FIG. 1 is a schematic structural diagram of a simulation experiment device for deep gas-thermal co-production of a stratum;
fig. 2 is a graph of the buried depth and the heat quantity Q obtained in the example.
In the attached figure, 1-simulated formation cavity, 2-geological sample, 3-heating device, 4-liquid flow meter, 5-gas flow meter, 6-water storage device, 7-booster pump, 8-first pressure meter, 9-gas cylinder, 10-second pressure meter, 11-confining pressure pump, 12-third pressure meter, 13-gas-water separator and 14-heat exchanger.
Detailed Description
The present embodiment provides the simulation experiment apparatus for deep gas-thermal co-production in a stratum, as shown in fig. 1, the simulation experiment apparatus includes a water supply and gas supply unit, a simulated stratum cavity 1 and a detection unit, which are connected in sequence, where the water supply and gas supply unit includes a water supply device and a gas supply device, and the water supply device and the gas supply device are connected in parallel to simulate an inlet of the stratum cavity 1; a geological sample 2 is arranged in each simulated formation cavity 1, and a heating device 3 and a confining pressure device are arranged outside each simulated formation cavity 1 and are used for enabling the simulated formation cavities 1 to reach the temperature and confining pressure corresponding to the simulated formation;
the detection unit comprises an air channel pipeline and a water channel pipeline which are connected with an outlet of the simulated stratum cavity 1 in parallel, a detector and a liquid flowmeter 4 are arranged on the water channel pipeline and used for measuring and calculating the gas production quantity, and a gas flowmeter 5 is arranged on the air channel pipeline and used for detecting the gas production quantity.
Optionally, water supply installation includes water receiver 6, booster pump 7 and first pressure gauge 8, and the outlet of booster pump 7 passes through the outlet pipe way that first pressure gauge 8 connects water receiver 6, for the water pressure boost of 6 outputs of water receiver, the simulation fracture water.
Optionally, the gas supply device includes a gas cylinder 9 and a second pressure gauge 10, the second pressure gauge 10 is arranged on an output gas path of the gas cylinder 9, and methane gas is stored in the gas cylinder 9 and used for simulating coal bed gas or shale gas output by the stratum.
Further optionally, the output pipeline of the water storage device 6 and the output gas circuit of the gas cylinder 9 are combined into one pipeline and then connected with the inlet of the simulated formation cavity 1, so that water and gas are mixed and then input into the simulated formation cavity 1, and the real gas production condition is simulated.
Optionally, the heating device 3 is arranged around the outside of the simulated formation cavity 1, so as to uniformly heat the simulated formation cavity 1, thereby simulating a real geothermal condition of the formation. The heating device 3 may be a conventional heating device 3, such as a heating jacket, a heating plate, an electric furnace, etc.
Optionally, the confining pressure device includes a confining pressure pump 11 and a third pressure gauge 12, and the confining pressure pump 11 is connected to the inlet or the outlet of the simulated formation cavity 1 through the third pressure gauge 12, so that the internal pressure of the simulated formation cavity 1 reaches the formation confining pressure of the real depth.
Optionally, be equipped with gas-water separator 13 and gas flowmeter 5 on the gas circuit pipeline in proper order, be equipped with detector and fluidflowmeter 4 on the water route pipeline in proper order, the detector is heat exchanger 14, and the gas circuit pipeline is established in the top of water route pipeline.
Gas production and hot water output from the simulated formation cavity 1 are separated by a gas-water separator 13, and the gas continuously passes through a gas flowmeter 5 along a gas path pipeline and then is input into a corresponding gas collecting device; hot water flows down and enters a waterway pipeline, exchanges heat with a cold medium through a heat exchanger 14, and then is input into a corresponding liquid collecting device through a liquid flowmeter 4; the cold medium after absorbing heat supplies heat for other devices, such as the heating device 3 or laboratory heating.
When a commingled production experiment needs to be carried out on a plurality of strata with different burial depths simultaneously, a plurality of simulated stratum cavities 1 are connected in parallel, and each simulated stratum cavity 1 is provided with a corresponding heating device 3 and a confining pressure device and is used for enabling each simulated stratum cavity 1 to set corresponding confining pressure and temperature according to the respective burial depth (namely the burial depth); the water supply device and the air supply device are connected with the inlets of the plurality of simulated stratum cavities 1 in parallel, and the air channel pipeline and the water channel pipeline are connected with the outlets of the plurality of simulated stratum cavities 1 in parallel.
The skilled person can install switches or valves at the front and rear pipes of the above components according to the needs of experiments, so as to control the flow of gas and liquid.
The embodiment also provides a use method of the simulation experiment device for deep gas-thermal co-production of the stratum, which comprises the following steps of:
(1) Estimating equation S from vertical stress v Calculating the confining pressure of the stratum with different burial depths according to the equation T =0.036 × H +14 of the relation between the ground temperature and the depth;
TABLE 1 corresponding confining pressure and temperature for different buried depths of the formation
(2) Simulating a stratum with a buried depth by using the simulated stratum cavity 1, enabling the temperature of the simulated stratum cavity 1 to reach the stratum temperature corresponding to the buried depth calculated in the step (1) by using the heating device 3, and enabling the confining pressure of the simulated stratum cavity 1 to reach the stratum confining pressure corresponding to the buried depth calculated in the step (1) by using the confining pressure device;
(3) Starting a water supply device and an air supply device, supplying water and air to the simulated formation cavity 1, wherein the pressure provided by a booster pump 7 and an air bottle 9 is 2MPa;
simultaneously starting a gas-water separator 13 of the gas pipeline, a gas flowmeter 5, a heat exchanger 14 of the water pipeline and a liquid flowmeter 4, enabling the separated gas to flow through the gas flowmeter 5, enabling the cold medium and the hot water to flow through the heat exchanger 14, and enabling the hot water to flow through the liquid flowmeter 4 after heat exchange;
(4) The simulation experiment device runs for 30min, and after the simulation experiment device reaches a stable state, the flow of the liquid flowmeter 4 and the temperature of hot water entering and exiting the heat exchanger 14 are recorded, and the heat value Q of the hot water is calculated;
the calorific value Q is calculated as follows:
Q=C×ρ water (W) ×L×t×(T g -T h )
Wherein Q is the calorific value, J; c is the specific heat capacity of water, 4.2X 10 3 J/(kg•℃)；ρ Water (W) 1X 10 is the density of water 3 kg/m 3 (ii) a L is the flow rate of hot water, m 3 Min; t is experimental time, min; t is g The temperature at which the hot water enters heat exchanger 14, deg.C; t is h Is the temperature of the hot water exiting the heat exchanger 14, deg.C;
(5) Respectively simulating the stratum with different burial depths in the table 1 by utilizing the simulated stratum cavity 1, repeating the steps (2) to (4), wherein the water supply pressure and the gas supply pressure in the step (3) are both 2MPa, obtaining a coupling mechanism of the geothermal temperature and the permeability under the condition of different burial depths, and finding the burial depth interval corresponding to the maximum calorific value Q to be 3000-3500m by comparing the calorific values Q of the obtained hot water under the condition of different burial depths, as shown in figure 2.
In step (1), the vertical stress estimation equation is proposed by Hoek and Brown in 1980 (Brown, e.t., hoek, e.e., 1980. Underprojected expressions in rock. CRC press.), and the equation of the relationship between ground temperature and depth is proposed by Yang Xuchong in 1984 (Yang Xuchong. Eastern cave ground temperature characteristics and deep exploration problem [ J ] petro-chemical report, 1984 (03): 19-26.).
Claims (10)
1. The simulation experiment device for the formation deep gas-heat co-production is characterized by comprising a water and gas supply unit, at least one simulation formation cavity and a detection unit which are sequentially connected, wherein the water and gas supply unit comprises a water supply device and a gas supply device which are connected in parallel with an inlet of the simulation formation cavity; a geological sample is arranged in each simulated stratum cavity, and a heating device and a confining pressure device are arranged outside each simulated stratum cavity and are used for enabling the simulated stratum cavities to reach the temperature and confining pressure corresponding to the simulated stratum;
the detection unit comprises an air passage pipeline and a water passage pipeline which are connected with an outlet of the simulated stratum cavity in parallel, a detector and a liquid flowmeter are arranged on the water passage pipeline and used for measuring and calculating the gas production quantity, and a gas flowmeter is arranged on the air passage pipeline and used for detecting the gas production quantity.
2. The simulation experiment device according to claim 1, wherein the water supply device comprises a water reservoir, a booster pump and a first pressure gauge, and an outlet of the booster pump is connected with an output pipeline of the water reservoir through the first pressure gauge to boost the water output by the water reservoir and simulate fracturing water.
3. The simulation experiment device of claim 1, wherein the gas supply device comprises a gas cylinder and a second pressure gauge, the second pressure gauge is arranged on an output gas path of the gas cylinder, and methane gas is stored in the gas cylinder and used for simulating coal bed gas or shale gas output by a stratum.
4. The simulation experiment device of claim 1, wherein the confining pressure device comprises a confining pressure pump and a third pressure gauge, and the confining pressure pump is connected with an inlet or an outlet of the simulated formation cavity through the third pressure gauge so that the internal pressure of the simulated formation cavity reaches the formation confining pressure of a real depth.
5. The simulation experiment device of claim 1, wherein the gas pipeline is sequentially provided with a gas-water separator and a gas flowmeter, the water pipeline is sequentially provided with a detector and a liquid flowmeter, the detector is a heat exchanger, and the gas pipeline is arranged above the water pipeline.
6. The method of using a simulation test device according to any one of claims 1 to 5, comprising the steps of:
(1) Calculating the confining pressure of the stratum with different burial depths according to a vertical stress estimation equation, and calculating the temperature of the stratum with different burial depths according to a relation equation of the ground temperature and the depth;
(2) Simulating a stratum with a buried depth by using the simulated stratum cavity, enabling the temperature of the simulated stratum cavity to reach the stratum temperature corresponding to the buried depth calculated in the step (1) by using a heating device, and enabling the confining pressure of the simulated stratum cavity to reach the stratum confining pressure corresponding to the buried depth calculated in the step (1) by using a confining pressure device;
(3) Starting a water supply device and a gas supply device to supply water and gas to the simulated formation cavity; simultaneously starting a gas flowmeter of the gas path pipeline, a detector of the water path pipeline and a liquid flowmeter;
(4) After the state of the simulation experiment device is stable, recording the flow of the liquid flowmeter and the temperature of hot water entering and exiting the detector, and calculating the heat value Q of the hot water;
(5) And (5) simulating the stratum with different burial depths by utilizing the simulated stratum cavity, and repeating the steps (2) to (4) to obtain the coupling mechanism of the geothermal temperature and the permeability under the condition of different burial depths.
7. The use of the simulation experiment device according to claim 6, wherein, in the step (1), the vertical stress is appliedThe estimation equation is S v =0.027 × H, and the equation of the relationship between the ground temperature and the depth is T =0.036 × H +14.
8. The use method of the simulation experiment device as claimed in claim 6, wherein in the step (3), the pressure provided by the booster pump of the water supply device is 0.5-2MPa, and the pressure provided by the gas cylinder of the gas supply device is 0.5-2MPa;
and starting the gas-water separator, the gas flowmeter, the heat exchanger and the liquid flowmeter, so that the separated gas flows through the gas flowmeter, the cold medium and the hot water flow through the heat exchanger, and the hot water flows through the liquid flowmeter after heat exchange.
9. The use method of the simulation experiment device according to claim 8, wherein in the step (4), the simulation experiment device needs to run for 30-40min to reach a steady state;
the calculation formula of the calorific value Q of the hot water is as follows:
Q=C×ρ water (W) ×L×t×(T g -T h )
Wherein Q is the calorific value, J; c is the specific heat capacity of water, 4.2X 10 3 J/(kg•℃)；ρ Water (W) 1X 10 is the density of water 3 kg/m 3 (ii) a L is the flow rate of hot water, m 3 Min; t is experimental time, min; t is g The temperature of hot water entering the heat exchanger is DEG C; t is h The temperature of the hot water flowing out of the heat exchanger is in DEG C.
10. The use method of the simulation experiment device according to claim 9, wherein in the step (5), the water supply pressure in the step (3) is the same in different burial depth experiments, and the air supply pressure is the same in different burial depth experiments;
and finding the burial depth or the burial depth interval corresponding to the maximum heat value Q by comparing the heat values Q of the obtained hot water at different burial depths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211545699.0A CN115561279A (en) | 2022-12-05 | 2022-12-05 | Simulation experiment device for formation deep gas-heat co-production and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211545699.0A CN115561279A (en) | 2022-12-05 | 2022-12-05 | Simulation experiment device for formation deep gas-heat co-production and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115561279A true CN115561279A (en) | 2023-01-03 |
Family
ID=84770609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211545699.0A Pending CN115561279A (en) | 2022-12-05 | 2022-12-05 | Simulation experiment device for formation deep gas-heat co-production and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115561279A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004301750A (en) * | 2003-03-31 | 2004-10-28 | Kazuo Shibata | Underground heat sampling tester |
| CN102830214A (en) * | 2012-08-15 | 2012-12-19 | 中国石油天然气股份有限公司 | Dynamic physical simulation experiment method and device for water invasion of fractured bottom water gas reservoir |
| CN103161459A (en) * | 2013-02-06 | 2013-06-19 | 中国矿业大学 | Multi-layer overlaid coalbed methane treasure exploitation interlayer interruption mechanism modeling device |
| CN105805969A (en) * | 2016-04-14 | 2016-07-27 | 中国石油大学(华东) | Process for injecting terrestrial heat of CO2 mining waste high-temperature gas reservoir |
| CN106677771A (en) * | 2016-11-28 | 2017-05-17 | 中国石油大学(华东) | Simulation experiment device used for enhanced geothermal system and method for evaluating porous sandstone geothermal reservoir reconstruction by means of simulation experiment device |
| CN207437055U (en) * | 2017-11-20 | 2018-06-01 | 西南石油大学 | The experimental provision of acidic leach gas reservoir water enchroachment (invasion) under a kind of simulation stratum condition |
| 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 |
| CN110318675A (en) * | 2019-07-01 | 2019-10-11 | 山东科技大学 | A kind of Deep Coalbed Methane heat is total to mining method |
| CN110924943A (en) * | 2019-12-03 | 2020-03-27 | 中国石油大学(北京) | Quantitative drainage and production experimental device for coal-bed gas well and drainage and production control method |
| CN111721805A (en) * | 2020-08-06 | 2020-09-29 | 中国地质大学（北京） | Experimental device for simulating geothermal resource exploitation efficiency optimization |
| CN112855129A (en) * | 2021-01-15 | 2021-05-28 | 青岛海洋地质研究所 | Multi-gas co-production simulation device and method for marine natural gas hydrate system |
| CN217327298U (en) * | 2022-05-30 | 2022-08-30 | 四川零碳智慧科技有限公司 | Hot dry rock heat storage building simulation experiment device |
| CN115047029A (en) * | 2022-05-23 | 2022-09-13 | 中南大学 | Mine thermal damage control and geothermal exploitation collaborative simulation experiment method |
| CN115165502A (en) * | 2022-07-22 | 2022-10-11 | 清华大学 | Preparation method of test rock sample and multi-field coupling test method |
| CN115266516A (en) * | 2022-06-13 | 2022-11-01 | 清华大学 | Multi-field coupling test system |
-
2022
- 2022-12-05 CN CN202211545699.0A patent/CN115561279A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004301750A (en) * | 2003-03-31 | 2004-10-28 | Kazuo Shibata | Underground heat sampling tester |
| CN102830214A (en) * | 2012-08-15 | 2012-12-19 | 中国石油天然气股份有限公司 | Dynamic physical simulation experiment method and device for water invasion of fractured bottom water gas reservoir |
| CN103161459A (en) * | 2013-02-06 | 2013-06-19 | 中国矿业大学 | Multi-layer overlaid coalbed methane treasure exploitation interlayer interruption mechanism modeling device |
| CN105805969A (en) * | 2016-04-14 | 2016-07-27 | 中国石油大学(华东) | Process for injecting terrestrial heat of CO2 mining waste high-temperature gas reservoir |
| CN106677771A (en) * | 2016-11-28 | 2017-05-17 | 中国石油大学(华东) | Simulation experiment device used for enhanced geothermal system and method for evaluating porous sandstone geothermal reservoir reconstruction by means of simulation experiment device |
| CN207437055U (en) * | 2017-11-20 | 2018-06-01 | 西南石油大学 | The experimental provision of acidic leach gas reservoir water enchroachment (invasion) under a kind of simulation stratum condition |
| 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 |
| CN110318675A (en) * | 2019-07-01 | 2019-10-11 | 山东科技大学 | A kind of Deep Coalbed Methane heat is total to mining method |
| CN110924943A (en) * | 2019-12-03 | 2020-03-27 | 中国石油大学(北京) | Quantitative drainage and production experimental device for coal-bed gas well and drainage and production control method |
| CN111721805A (en) * | 2020-08-06 | 2020-09-29 | 中国地质大学（北京） | Experimental device for simulating geothermal resource exploitation efficiency optimization |
| CN112855129A (en) * | 2021-01-15 | 2021-05-28 | 青岛海洋地质研究所 | Multi-gas co-production simulation device and method for marine natural gas hydrate system |
| CN115047029A (en) * | 2022-05-23 | 2022-09-13 | 中南大学 | Mine thermal damage control and geothermal exploitation collaborative simulation experiment method |
| CN217327298U (en) * | 2022-05-30 | 2022-08-30 | 四川零碳智慧科技有限公司 | Hot dry rock heat storage building simulation experiment device |
| CN115266516A (en) * | 2022-06-13 | 2022-11-01 | 清华大学 | Multi-field coupling test system |
| CN115165502A (en) * | 2022-07-22 | 2022-10-11 | 清华大学 | Preparation method of test rock sample and multi-field coupling test method |
Non-Patent Citations (1)
| Title |
|---|
| 任韶然 等: "注超临界CO_2开采高温废弃气藏地热机制与采热能力分析", 《中国石油大学学报(自然科学版)》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110318675B (en) | Deep coal bed gas thermal co-production method | |
| CN101629485B (en) | Exploitation method of communication well of geothermal energy bore well | |
| CN109975140B (en) | Supercritical carbon dioxide pulse fracturing and permeability testing integrated experimental device and method | |
| Liu et al. | A novel natural gas hydrate recovery approach by delivering geothermal energy through dumpflooding | |
| CN106127599B (en) | A point method is split for gas well yield of the tight gas reservoir under gas gathering station production model | |
| CN107145696A (en) | A kind of analogy method of coal bed gas above and below ground couple solution | |
| CN108333098A (en) | Shale gas reservoir micro-fractures high-temperature and high-pressure visual air water two phase fluid flow experimental provision | |
| Liu et al. | Comparative investigation on the heat extraction performance of an enhanced geothermal system with N2O, CO2 and H2O as working fluids | |
| CN105952424A (en) | Supercritical water-oil displacement simulator and method | |
| CN110630228A (en) | Evaluation of CO2/N2Device and method for shaft sand production and prevention during hydrate exploitation by displacement method | |
| CN109826595A (en) | A kind of multipotency joint hot dry rock energy storage heating system | |
| CN103439356A (en) | Experimental apparatus and method for constant-pressure specific heat measurement of supercritical carbon dioxide | |
| Du et al. | Experimental and numerical simulation research on heat transfer performance of coaxial casing heat exchanger in 3500m-deep geothermal well in Weihe Basin | |
| CN109297077A (en) | A kind of hot heating system cascade utilization of mid-deep strata interference-free rock and monitoring system and method | |
| Yin et al. | Analysis of flow and thermal breakthrough in leaky downhole coaxial open loop geothermal system | |
| CN108930529A (en) | Oil based on discarded oil/gas well-thermo-electrically co-production | |
| CN103114828A (en) | Setting method of underground throttle technological parameter | |
| TWI625460B (en) | Enhanced geothermal system and method for building such system | |
| Hu et al. | Mechanisms and field application of in-situ heat injection-enhanced gas drainage | |
| CN115561279A (en) | Simulation experiment device for formation deep gas-heat co-production and use method | |
| CN211648236U (en) | Coal seam gas drainage radius measuring device and system | |
| CN210564478U (en) | Cluster well high-medium-pressure multi-well mixed series gas collection system | |
| CN103195401A (en) | Coal reservoir yield increasing transforming experiment device under stratum conditions | |
| Ma et al. | Production performance optimization of water-enhanced geothermal system based on effective time-averaged volume | |
| CN116378617A (en) | Method for exploiting shale gas by fracturing shale with carbon dioxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230103 |