AU2014377273B2 - Apparatus for testing dense rock gas desorption rate - Google Patents
Apparatus for testing dense rock gas desorption rate Download PDFInfo
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- AU2014377273B2 AU2014377273B2 AU2014377273A AU2014377273A AU2014377273B2 AU 2014377273 B2 AU2014377273 B2 AU 2014377273B2 AU 2014377273 A AU2014377273 A AU 2014377273A AU 2014377273 A AU2014377273 A AU 2014377273A AU 2014377273 B2 AU2014377273 B2 AU 2014377273B2
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- 238000003795 desorption Methods 0.000 title claims abstract description 74
- 239000011435 rock Substances 0.000 title claims abstract description 68
- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000005259 measurement Methods 0.000 claims abstract description 27
- 239000010409 thin film Substances 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 113
- 239000003245 coal Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract 12
- 239000007789 gas Substances 0.000 description 156
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 24
- 238000011161 development Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/14—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- Life Sciences & Earth Sciences (AREA)
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Provided is an apparatus for testing a dense rock gas desorption rate, which is composed of a gas desorption apparatus, a gas volume measurement apparatus and a computer. The gas desorption apparatus comprises a core gripper, a boost pump and a pressure gauge; the gas volume measurement apparatus comprises a gas storage tank, a rubber hose, a quality measurement instrument, a special liquid, a liquid storage tank and a thin film, the gas storage tank storing the special liquid, and the liquid storage tank storing the special liquid; with the core gripper producing circling pressure, gas in a rock sample is desorbed and is discharged to the gas storage tank through a valve, and the gas discharges the special liquid in the gas storage tank to the liquid storage tank; the weight of the discharged special liquid is measured by the quality measurement instrument and is transmitted in real time via a data transmission line to the computer to record the weight of the special liquid discharged in real time, and the computer automatically calculates the volume of the special liquid discharged in real time with the known density of the special liquid; and the computer calculates the desorption rate of the rock sample according to the volume of the special liquid discharged in real time.
Description
1 2014377273 29 Jun2017
GAS DESORPTION RATE TESTING DEVICE FOR
COMPACTED ROCK
5 FIELD OF THE INVENTION
[0001] The present invention relates to the technical field of exploration and development of shale gas, coal-bed methane, in particular to the field of testing gas desorption rate of shale gas, coal-bed methane, and specifically to a gas desorption rate testing device for compacted rock.
10 BACKGROUND AND RELATED ART
[0002] Shale gas, or coal-bed methane is a kind of natural gas in absorbed, free or dissolved state that exists in shale or coal bed. In conventional natural gas reservoir stratum, there is mainly free gas and dissolved gas and basically no absorbed gas, while in unconventional natural gas reservoir stratum such as shale and coal bed or the like, content of the absorbed gas 15 is relatively high, and generally the total amount of absorbed gas and free gas exceeds 90%. The content of absorbed gas and free gas is directly related to the development prospect of shale gas and coal-bed methane, and gas desorption rate is directly related to initial yield and decay rate of late gas production, which will affect evaluation on commercial foreground of shale gas or coal-bed methane in a certain region. For this end, it is necessary to establish accurate 20 desorption rate evaluation data, and the desorption rate data for the shale gas is used for gas reservoir simulation and production prediction. For this purpose, it is necessary to know about gas content and desorption characteristics of shale core or coal core. Therefore, a testing apparatus of testing gas content of shale gas/coal-bed methane seems to be particularly important in exploration and development of shale gas and coal-bed methane. 25 [0003] At present, there is no invention of a gas desorption rate testing device for compacted rock at home and abroad.
BRIEF SUMMARY OF THE INVENTION
[0004] Disclosed is a gas desorption rate testing device for compacted rock, which consists of a 30 gas desorption device 101, a gas volume measurement device 102 and a computer 18, the gas
9226459 1 (GHMatters) P101171.AU 2 2014377273 29 Jun2017 desorption device 101 being connected to the gas volume measurement device 102, the gas volume measurement device 102 being connected to the computer 18; wherein, the gas desorption device 101 comprises a core gripper 4, a booster pump 19 and a pressure gauge 5, the core gripper 4 stores a rock sample 6 therein and applies stratum ring pressure on the rock 5 sample by the booster pump 19, and the pressure gauge 5 is used for testing the ring pressure of the core gripper 4; the gas volume measurement device 102 comprises a gas storage tank 7, a rubber hose 14, a mass meter 13, special fluid 9, 10, a fluid storage tank 8 and thin films 11, 12, the gas storage tank 7 stores special fluid 9 therein, and the fluid storage tank 8 stores special fluid 10 therein; as the core gripper 4 generates ring pressure, gas in the rock sample 6 is ί0 desorbed, is discharged by a valve 1 to the gas storage tank 7, in which the gas may discharge the special fluid 9 to the fluid storage tank 8; the mass meter 13 meters the mass of the discharged special fluid 9, and transfers it to the computer 18 via a data transmission line 17 in real time, and the computer 18 records the mass of the special fluid 9 discharged in real time, and in the case that density of the special fluid 9 is known, the computer 18 automatically 15 calculates volume of the special fluid 9 discharged in real time; the computer calculates desorption rate of the rock sample based on the volume of the special fluid discharged at different time intervals. The gas desorption rate testing device for compacted rock may further comprise a gas collection bottle 16 and a gas pump 15, the collection bottle 16 is connected to the gas storage tank 7 via a valve 3, the gas pump 15 is connected to the fluid storage tank 8 via 10 a valve 2; when all of the special fluid 9 in the gas storage tank 7 is discharged into the fluid storage tank 8, the valve 2 and the valve 3 are opened, the gas pump 15 is used for inflating the fluid storage tank 8, the special fluid 10 will be discharged to the gas storage tank 7, and the gas in the gas storage tank 7 is discharged to the collection bottle 16.
[0005] Further, in one embodiment, the rock sample 6 is shale or coal core. 25 [0006] Further, in one embodiment, the special fluid 9, 10 is antifreezing solution.
[0007] Further, in one embodiment, the gas desorption device 101 and the gas volume measurement device 102 are in plural respectively, and form one to one correspondence therebetween, so that desorption rates of a plurality of rock samples can be measured simultaneously. 30 [0008] The testing device for testing the gas desorption rate of shale gas/coal-bed methane
according to an embodiment can not only measures mass of the fluid discharged from the gas storage tank by the mass meter and obtains volume of the fluid based on the known density of the fluid so as to measure volume of the gas, but also records by the computer the volume of the gas desorbed from the rock sample at different time intervals to obtain the gas desorption rate of 9226459 1 (GHMatters) P101171.AU 3 2014377273 29 Jun2017 the rock, so as to timely provide basis data for research of gas storage capability of shale and coal bed in a certain region.
[0008A] According to a first aspect of the present invention, there is provided a gas desorption rate testing device for compacted rock, wherein the device comprises a gas desorption device, a 5 gas volume measurement device and a computer, wherein the gas volume measurement device comprises a special fluid, a gas storage tank and a fluid storage tank, wherein the special fluid is transferrable between the gas storage tank and the fluid storage tank; wherein: the gas desorption device desorbs gas of a rock sample; the desorbed gas is discharged to the gas storage tank of the gas volume measurement device, so that special fluid ί0 in the gas storage tank is discharged; a mass meter meters mass of the special fluid discharged from the gas storage tank; the computer obtains volume of the special fluid discharged from the gas storage tank at different time intervals based on the mass and density of the special fluid discharged from the gas storage tank at different time intervals; then the computer calculates desorption rate of the rock sample based on the volume of the special fluid discharged at 15 different time intervals; wherein the gas volume measurement device further comprises a hose and the mass meter; wherein when gas in the rock sample is desorbed, the gas is discharged to the gas storage tank, the gas extrudes the special fluid in the gas storage tank, so that the special fluid is 10 discharged to the fluid storage tank via the hose; the mass meter meters the mass of the discharged special fluid, and transfers the mass of the special fluid to the computer in real time; wherein the gas storage tank comprises a thin film for isolating fluid from gas in the gas storage tank; wherein the fluid storage tank comprises a thin film for isolating fluid from gas in the 25 fluid storage tank.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to describe the embodiment of the invention or technical solutions in prior art more clearly, hereinafter accompanying figures required to be used in description of the embodiment or the prior art will be introduced briefly. Obviously, the accompanying figures in 30 the following description are merely some embodiments of the invention, and it is practicable for those skilled in the art to obtain other accompanying figures according to these ones in the premise of making no creative efforts.
[0010] Fig. 1 is a structural schematic of a gas desorption rate testing device for compacted rock in accordance with an embodiment of the present invention.
9226459_1 (GHMatters) P101171.AU 4 2014377273 29 Jun2017 [0011] Fig. 2 is a structural schematic of a specific embodiment of a gas desorption rate testing device for compacted rock in accordance with the present invention.
[0012] Description of the number references: [0013] 1,2,3 - valve; 4 - core gripper; 5 - pressure meter; 6 - rock sample; 7 - gas storage tank; 5 8- fluid storage tank; 9, 10 - special fluid; 11, 12 - thin film; 13 - mass meter; 14 - rubber hose; 15 - gas pump; 16 - gas collection bottle; 17 - data transmission line; 18 - computer; 19 -booster pump DETAILED DESCRIPTION OF THE INVENTION ί0 [0014] Hereinafter technical solutions in the embodiments of the invention will be described clearly and completely incorporating accompanying figures in the embodiments of the invention. Obviously, the described embodiments are merely part of embodiments of the invention, but not all of the embodiments. On the basis of the embodiment in the invention, all of the other embodiments obtained by those skilled in the art in the premise that no creative 15 efforts are made fall within the protection scope of the invention.
[0015] Fig. 1 is a structural schematic of a gas desorption rate testing device for compacted rock in accordance with an embodiment of the present invention. As shown in Fig. 1, the gas desorption rate testing device for compacted rock in accordance with the embodiment comprises a gas desorption device 101, a gas volume measurement device 102 and a computer 10 18, wherein the gas desorption device 101 is connected to the gas volume measurement device 102, and the gas volume measurement device 102 is connected to the computer 18.
[0016] Fig. 2 is a structural schematic of a specific embodiment of a gas desorption rate testing device for compacted rock in accordance with an embodiment of the present invention. As shown in Fig. 2, the gas desorption device 101 comprises a core gripper 4, a booster pump 19 25 and a pressure gauge 5, the core gripper 4 stores a rock sample 6 therein and applies stratum ring pressure on the rock sample by the booster pump 19, and the pressure gauge 5 is used for testing the ring pressure of the core gripper 4; the gas volume measurement device 102 comprises a gas storage tank 7, a rubber hose 14, a mass meter 13, special fluid 9, 10, a fluid storage tank 8 and thin films 11, 12, the gas storage tank 7 stores special fluid 9 therein, and the 30 fluid storage tank 8 stores special fluid 10 therein; as the core gripper 4 generates ring pressure, gas in the rock sample 6 is desorbed, is discharged by a valve 1 to the gas storage tank 7, in which the gas may discharge the special fluid 9 to the fluid storage tank 8; the mass meter 13 meters the mass of the discharged special fluid 9, and transfers it to the computer 18 via a data transmission line 17 in real time, and the computer 18 records the mass of the special fluid 9
9226459_1 (GHMatters) P101171.AU 5 2014377273 29 Jun2017 discharged in real time, and in the case that density of the special fluid 9 is known, the computer 18 automatically calculates volume of the special fluid 9 discharged in real time; the computer calculates desorption rate of the rock sample based on the volume of the special fluid discharged at different time intervals, and desorption rate is in the unit of ml/m. 5 [0017] In the embodiment, the gas desorption rate testing device for compacted rock further comprises a gas collection bottle 16 and a gas pump 15, the collection bottle 16 is connected to the gas storage tank 7 via a valve 3, the gas pump 15 is connected to the fluid storage tank 8 via a valve 2; when all of the special fluid 9 in the gas storage tank 7 is discharged into the fluid storage tank 8, the valve 2 and the valve 3 are opened, the gas pump 15 is used for inflating the 10 fluid storage tank 8, the special fluid 10 will be discharged to the gas storage tank 7, and the gas in the gas storage tank 7 is discharged to the collection bottle 16.
[0018] In the embodiment, the rock sample 6 is shale or coal core.
[0019] In the embodiment, the special fluid 9, 10 is antifreezing solution.
[0020] In another embodiment, the gas desorption device 101 and the gas volume measurement 15 device 102 may be in plural respectively, and form one to one correspondence therebetween, so that desorption rates of a plurality of rock samples can be measured simultaneously.
[0021] Desorption rate testing by the gas desorption rate testing device for compacted rock according to an embodiment of the present invention is implemented by the steps of: [0022] firstly initiating the gas volume measurement device 102: unloosing the valve 1, 10 disconnecting the gas desorption device 101 from the gas volume measurement device 102 so that the gas storage tank 7 is communicated with the atmosphere; closing the valve 3 and opening the valve 2, using the gas pump 15 to inflate the fluid storage tank 8, discharging the special fluid 10 in the fluid storage tank 8 to the gas storage tank 7 via the rubber hose 14, wherein the gas storage tank 7 is completely filled with the special fluid 9, the gas in the gas 25 storage tank 7 is discharged via the valve 1, and the thin films 11,12 are for isolating gas from fluid; [0023] secondly placing the sample: placing the rock sample 6 in the core gripper 4, boosting, by the booster pump 19, the ring pressure of the core gripper 4 to the pressure (measured by the pressure meter 5) of the stratum where the rock sample 6 is located, and connecting the gas 30 desorption device 101 and the gas volume measurement device 102 together by the valve 1;
[0024] thirdly measuring volume: discharging the gas in the rock sample 6 to the gas storage tank 7 after it is desorbed, wherein the gas may discharge the special fluid 9 in the gas storage tank 7 to the fluid storage tank 8; metering, by the mass meter 13, the mass of the discharged special fluid, transferring, by the data transmission line 17, it to the computer 18 which records 9226459_1 (GHMatters) P101171.AU 6 2014377273 29 Jun2017 the mass of the discharged special fluid 9; based on the known density of the special fluid 9, automatically calculating, by the computer 18, the volume of the discharged special fluid 9, wherein the volume is volume of the gas; [0025] fourthly calculating the desorption rate: recording, by the computer 18, volume of the 5 gas desorbed from the rock sample at different time intervals, subtracting from the total gas volume obtained in a certain time period, the total amount of gas obtained in a previous time period, to obtain gas volume obtained in the certain time period. Accordingly, by use of this method, volume of the desorbed gas at each stage from beginning to ending of desorption for the rock sample 6 can be calculated, so that the gas desorption rate for the rock sample 6 can be 10 obtained.
[0026] In this embodiment, when all of the special fluid 9 in the gas storage tank 7 is discharged to the fluid storage tank 8 but gas content testing for the rock sample 6 has not been finished, the valve 1 is closed, and the valves 2 and 3 are opened, the gas pump 15 is used for inflating the gas storage tank 7, the special fluid 10 will be discharged to the gas storage tank 7, 15 and the gas storage tank 7 will be discharged into the gas collection bottle 16. When the gas storage tank 7 is filled with the special fluid 9 and all of the gas is discharged to the gas collection bottle 16, the valves 2 and 3 are closed, and the valve 1 is opened for continuing the testing. Such operation is repeated until the gas desorption rate testing for the rock sample 6 is finished. 10 [0027] The testing device for testing the gas desorption rate of shale gas/coal-bed methane in the embodiment of the invention can not only measures mass of the fluid discharged from the gas storage tank by the mass meter and obtains volume of the fluid based on the known density of the fluid so as to measure volume of the gas, but also records by the computer the volume of the gas desorbed from the rock sample at different time intervals to obtain the gas desorption 25 rate of the rock, so as to timely provide basis data for research of gas storage capability of shale and coal bed in a certain region.
[0028] The invention adopts specific embodiments to explain the principle and implementation way of the invention. The above embodiments are described merely for helping to understand the method and core concept of the invention; in addition, a person skilled in the art can, on the 30 basis of the concept of the invention, make modifications to both of the specific embodiments and application scope. In conclusion, contents disclosed herein should not be understood as limitation to the invention.
[0029] In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the 9226459_1 (GHMatters) P101171.AU 7 2014377273 29 Jun2017 word “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
[0030] It is to be understood that, if any prior art publication is referred to herein, such 5 reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country. 10
9226459_1 (GHMatters) P101171.AU
Claims (12)
1. A gas desorption rate testing device for compacted rock, wherein the device comprises a gas desorption device, a gas volume measurement device and a computer, wherein the gas volume measurement device comprises a special fluid, a gas storage tank and a fluid storage tank, wherein the special fluid is transferrable between the gas storage tank and the fluid storage tank; wherein: the gas desorption device desorbs gas of a rock sample; the desorbed gas is discharged to the gas storage tank of the gas volume measurement device, so that special fluid in the gas storage tank is discharged; a mass meter meters mass of the special fluid discharged from the gas storage tank; the computer obtains volume of the special fluid discharged from the gas storage tank at different time intervals based on the mass and density of the special fluid discharged from the gas storage tank at different time intervals; then the computer calculates desorption rate of the rock sample based on the volume of the special fluid discharged at different time intervals; wherein the gas volume measurement device further comprises a hose and the mass meter; wherein when gas in the rock sample is desorbed, the gas is discharged to the gas storage tank, the gas extrudes the special fluid in the gas storage tank, so that the special fluid is discharged to the fluid storage tank via the hose; the mass meter meters the mass of the discharged special fluid, and transfers the mass of the special fluid to the computer in real time; wherein the gas storage tank comprises a thin film for isolating fluid from gas in the gas storage tank; wherein the fluid storage tank comprises a thin film for isolating fluid from gas in the fluid storage tank.
2. The gas desorption rate testing device for compacted rock according to claim 1, wherein the gas desorption device comprises a core gripper and a booster pump, the core gripper storing the rock sample therein, the booster pump applying stratum ring pressure on the rock sample by the core gripper, for gas desorption.
3. The gas desorption rate testing device for compacted rock according to claim 2, wherein the gas desorption device further comprises a pressure gauge for testing the ring pressure applied on the core gripper.
4. The gas desorption rate testing device for compacted rock according to any one of claims 1 to 3, wherein the computer calculates volume of the special fluid discharged from the gas storage tank in real time based on the mass of the special fluid discharged at different time intervals and the density of the special fluid, and further calculates desorption rate of the rock sample.
5. The gas desorption rate testing device for compacted rock according to any one of claims 1 to 4, wherein the gas desorption rate testing device further comprises a gas collection bottle and a gas pump, wherein the collection bottle is connected to the gas storage tank via a first valve, and the gas pump is connected to the fluid storage tank via a second valve; wherein when all of the special fluid in the gas storage tank is discharged into the fluid storage tank, the second valve and the first valve are opened, the gas pump is used for inflating the fluid storage tank, the special fluid in the fluid storage tank will be discharged to the gas storage tank, and the gas in the gas storage tank will be discharged into the collection bottle.
6. The gas desorption rate testing device for compacted rock according to any one of claims 1 to 5, wherein the gas desorption device and the gas volume measurement device are connected via a further valve.
7. The gas desorption rate testing device for compacted rock according to any one of claims 1 to 6, wherein the rock sample is shale or coal core.
8. The gas desorption rate testing device for compacted rock according to any one of claims 1 to 7, wherein the special fluid is antifreezing solution.
9. The gas desorption rate testing device for compacted rock according to any one of claims 1 to 8, wherein the gas desorption device and the gas volume measurement device are in plural respectively, and form one to one correspondence therebetween, so that desorption rates of a plurality of rock samples can be measured simultaneously.
10. A gas desorption rate testing method for compacted rock, wherein the method comprises: a step 1 of placing a rock sample and desorbing gas from the rock sample; a step 2 of discharging the desorbed gas into the gas storage tank and metering mass of fluid discharged from the gas storage tank in real time, wherein the gas is isolated from fluid by the thin film in the gas storage tank; a step 3 of calculating desorption rate of the rock sample based on the mass and density of the discharged fluid.
11. The gas desorption rate testing method for compacted rock according to claim 10, wherein prior to the step 2, the method further comprises: communicating the gas storage tank with the atmosphere, so that the entire gas storage tank is filled with the fluid.
12. The gas desorption rate testing method for compacted rock according to claim 10, wherein in the step 2, the method further comprises: if all of the fluid in the gas storage tank is discharged but the testing has not been finished, the gas pump is used for inflating the fluid storage tank, and the fluid flowing into the fluid storage tank is anew discharged into the gas storage tank.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/070395 WO2015103758A1 (en) | 2014-01-09 | 2014-01-09 | Apparatus for testing dense rock gas desorption rate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2014377273A1 AU2014377273A1 (en) | 2016-01-21 |
| AU2014377273B2 true AU2014377273B2 (en) | 2017-07-27 |
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| AU2014377273A Active AU2014377273B2 (en) | 2014-01-09 | 2014-01-09 | Apparatus for testing dense rock gas desorption rate |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN105637340A (en) |
| AU (1) | AU2014377273B2 (en) |
| PL (1) | PL241016B1 (en) |
| WO (1) | WO2015103758A1 (en) |
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| CN105203428B (en) * | 2015-11-04 | 2016-10-05 | 中国地质科学院地质力学研究所 | A kind of shale air content is lost the determination method of Gas content |
| CN106525637A (en) * | 2016-12-27 | 2017-03-22 | 重庆矿产资源开发有限公司 | Shale gas-content testing device and testing method |
| CN107014717B (en) * | 2017-03-29 | 2024-04-12 | 上海瑞达峰致能源科技股份有限公司 | Method and device for testing desorption gas amount of lost gas in shale gas well |
| CN107449693B (en) * | 2017-09-16 | 2023-12-01 | 中国地质大学（武汉） | Device and method for calculating shale gas content based on uninterrupted continuous collection |
| CN107449641B (en) * | 2017-09-16 | 2023-12-01 | 中国地质大学（武汉） | Device and method for continuously collecting shale desorption gas without interruption |
| CN108663285A (en) * | 2018-05-14 | 2018-10-16 | 铜仁中能天然气有限公司 | For the novel shale gas site desorption experimental rig in normal pressure stratum and test method |
| CN110608975A (en) * | 2019-09-23 | 2019-12-24 | 中国地质大学（武汉） | Gas content testing device and testing method and application thereof |
| CN110988212B (en) * | 2019-12-26 | 2021-01-29 | 中国矿业大学(北京) | Shale nitrogen yield testing method |
| CN111337380B (en) * | 2020-04-16 | 2023-04-07 | 重庆工程职业技术学院 | Coal sample gas analysis volume measuring device |
| CN113670769B (en) * | 2021-08-18 | 2022-10-18 | 中国石油大学(北京) | Method for simulating gas content change in marine shale stratum lifting process |
| CN113866380B (en) * | 2021-09-29 | 2023-12-08 | 中海石油(中国)有限公司 | High-rank coal seam free gas content measuring device and measuring method |
| CN114544424A (en) * | 2022-03-14 | 2022-05-27 | 中煤科工集团沈阳研究院有限公司 | Method and device for quickly and automatically measuring gas content of underground coal seam |
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- 2014-01-09 PL PL416702A patent/PL241016B1/en unknown
- 2014-01-09 CN CN201480056316.0A patent/CN105637340A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2015103758A1 (en) | 2015-07-16 |
| CN105637340A (en) | 2016-06-01 |
| AU2014377273A1 (en) | 2016-01-21 |
| PL241016B1 (en) | 2022-07-18 |
| PL416702A1 (en) | 2017-01-02 |
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