WO2015103758A1 - Appareil pour tester un taux de désorption de gaz de roche dense - Google Patents

Appareil pour tester un taux de désorption de gaz de roche dense Download PDF

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Publication number
WO2015103758A1
WO2015103758A1 PCT/CN2014/070395 CN2014070395W WO2015103758A1 WO 2015103758 A1 WO2015103758 A1 WO 2015103758A1 CN 2014070395 W CN2014070395 W CN 2014070395W WO 2015103758 A1 WO2015103758 A1 WO 2015103758A1
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WO
WIPO (PCT)
Prior art keywords
gas
storage tank
liquid
discharged
special liquid
Prior art date
Application number
PCT/CN2014/070395
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English (en)
Chinese (zh)
Inventor
薛华庆
闫刚
王红岩
刘洪林
Original Assignee
中国石油天然气股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中国石油天然气股份有限公司 filed Critical 中国石油天然气股份有限公司
Priority to PL416702A priority Critical patent/PL241016B1/pl
Priority to AU2014377273A priority patent/AU2014377273B2/en
Priority to CN201480056316.0A priority patent/CN105637340A/zh
Priority to PCT/CN2014/070395 priority patent/WO2015103758A1/fr
Publication of WO2015103758A1 publication Critical patent/WO2015103758A1/fr

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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

Definitions

  • the present invention relates to the field of exploration and development of shale gas and coalbed methane, and particularly relates to the field of testing gas desorption rate of shale gas and coalbed methane, and specifically relates to a page.
  • Test device for gas desorption rate of rock gas and coalbed methane BACKGROUND OF THE INVENTION
  • Shale gas and coalbed methane are natural gas in an adsorbed, free or dissolved state that is present in shale or coal seams. In conventional natural gas reservoirs, it is generally mainly free gas and dissolved gas, and there is basically no adsorbed gas.
  • the content of adsorbed gas is high, and the total amount of adsorbed gas and free gas is generally More than 90%.
  • the size of adsorbed gas and free gas is directly related to the development prospect of shale gas and coalbed methane.
  • the rate of gas desorption is directly related to the initial production and the rate of gas production decay in the later stage. It will affect whether shale gas or coalbed methane in a certain area is evaluated. With commercial prospects, accurate desorption rate evaluation data must be established. These shale gas desorption rate data are used for gas reservoir simulation and production prediction. To do so, it is necessary to understand the gas content and desorption characteristics of the shale core or coal core. Therefore, shale gas / coalbed methane gas test equipment is particularly important in shale gas and coalbed methane exploration and development.
  • Embodiments of the present invention provide a compact rock gas desorption rate testing device, which is composed of a gas desorption device 101, a gas volume measuring device 102, and a computer 18, and the gas desorption device 101 is connected to the gas volume measuring device 102.
  • the gas volume measuring device 102 is connected to the computer 18; wherein the gas desorbing device 101 comprises a core holder 4, a booster pump 19 and a pressure gauge 5, wherein the core holder 4 stores a rock sample 6,
  • the core holder 4 applies a formation ring pressure to the rock sample 6 through the booster pump 19, and the pressure gauge 5 is used to test the ring pressure of the core holder 4;
  • the device 102 includes a gas storage tank 7, a rubber hose 14, a mass meter 13, a special liquid 9, 10, a liquid storage tank 8 and a film 11, 12, in which the specific liquid 9 is stored, the liquid storage
  • the tank 8 stores a specific liquid 10; as the core holder 4 generates a ring pressure, the gas in the rock sample 6 is desorbed, discharged through the valve 1 to the gas storage tank 7, and the gas will be in the gas storage tank 7.
  • the dense rock gas desorption rate testing device further includes a gas collection bottle 16 and a gas pump 15, the collection bottle 16 being connected to the gas storage tank 7 through a valve 3, the gas pump 15 being connected to the liquid storage tank through a valve 2.
  • the core sample 6 is a shale or a coal core.
  • the specific liquid 9, 10 is an antifreeze.
  • the gas desorption device 101 and the gas volume measuring device 102 are plural, and the two are in one-to-one correspondence, so that the desorption rate of a plurality of rock samples can be simultaneously measured.
  • the test device for testing the gas desorption rate of shale gas/coal gas in the embodiment of the present invention can measure not only the mass of the liquid discharged from the gas storage tank by the mass meter, but also the volume of the liquid obtained by the density of the known liquid.
  • the measurement, and the volume of gas desorbed from rock samples at different time intervals can be recorded by computer to obtain the rate of desorption of rock gas, thus providing basic data for studying the gas storage capacity of shale and coal seams in a certain area.
  • FIG. 1 is a schematic structural view of a compact rock gas desorption rate testing device according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the structure of a specific embodiment of a compact rock gas desorption rate testing device of the present invention.
  • the compact rock gas desorption rate testing device of the present embodiment includes a gas desorption device 101, a gas volume measuring device 102, and a computer 18, the gas desorption device 101 being coupled to the gas volume measuring device 102, the gas A volume measuring device 102 is coupled to the computer 18.
  • the gas desorption device 101 includes a core holder 4, a booster pump 19, and a pressure gauge 5, in which the rock sample 6 is stored, and the core holder 4 passes the A booster pump 19 applies a formation ring pressure to the rock sample 6, the pressure gauge 5 is used to test the ring pressure of the core holder 4;
  • the gas volume measuring device 102 includes a gas storage tank 7, rubber soft a tube 14, a mass meter 13, a special liquid 9, 10, a liquid storage tank 8 and a film 11, 12, wherein the gas storage tank 7 stores a specific liquid 9, wherein the liquid storage tank 8 stores a specific liquid 10;
  • the core holder 4 generates a ring pressure, the gas in the rock sample 6 is desorbed, discharged through the valve 1 to the gas storage tank 7, and the gas discharges the special liquid 9 in the gas storage tank 7 into the liquid storage tank 8.
  • the mass meter 13 measures the weight of the discharged special liquid 9 and transmits it to the computer 18 via the data transmission line 17 to record the weight of the special liquid 9 discharged in real time.
  • the density of the special liquid 9 is known, and the computer 18 automatically calculates the real-time discharge.
  • the dense rock gas desorption rate testing device further includes a gas collection bottle 16 and an air pump 15, the collection bottle 16 is connected to the gas storage tank 7 through a valve 3, and the air pump 15 is connected through the valve 2.
  • the valve 2 and the valve 3 are opened, and the air pump 15 is used
  • the liquid storage tank 8 is inflated, the special liquid 10 will be discharged to the gas storage tank 7, and the gas in the gas storage tank 7 is discharged into the collection bottle 16.
  • the core sample 6 is a shale or a coal core.
  • the specific liquids 9, 10 are antifreeze solutions.
  • the gas desorption device 101 and the gas volume measuring device 102 may be plural, one-to-one correspondence, such that the desorption rate of a plurality of rock samples can be simultaneously measured.
  • the specific implementation steps of the desorption rate test using the dense rock gas desorption rate test device of the present invention are:
  • the gas volume measuring device 102 is initialized: the valve 1 is released, the gas desorbing device 101 and the gas volume measuring device 102 are turned off, so that the gas storage tank 7 is in communication with the atmosphere.
  • the valve 3 is closed, the valve 2 is opened, the air is filled into the liquid storage tank 8 by the air pump 15, and the special liquid 10 in the liquid storage tank 8 is discharged to the gas storage tank 7 via the rubber hose 14, and the gas storage tank 7 is all allowed.
  • the special liquid 9 is filled, and the gas in the gas tank 7 is discharged through the valve 1.
  • the films 11, 12 are for insulating gases and liquids.
  • the sample is placed: the rock sample 6 is placed in the core holder 4, and the pressure of the core holder 4 is applied to the pressure of the formation where the rock sample 6 is located by the booster pump 19 (using the pressure gauge 5) Measurement), the gas desorption device 101 and the gas volume measuring device 102 are connected together by a valve 1.
  • the mass meter 13 measures the weight of the discharged special liquid 9 and transmits it to the computer 18 via the data transmission line 17 to record the weight of the discharged special liquid 9. Since the density of the special liquid 9 is known, the computer 18 automatically calculates the volume of the discharged special liquid 9. , the volume is the volume of the gas.
  • valve 1 When the gas content test has not been completed, the valve 1 is closed, the valves 2, 3 are opened, and the liquid pump 15 is inflated into the liquid storage tank 8, the special liquid 10 will be discharged to the gas storage tank 7, and the gas storage tank 7 will be discharged to the gas. Collect the bottle 16 in it.
  • the valves 2, 3 When the gas tank 7 is filled with the special liquid 9, and all the gas is discharged to the gas collection bottle 16, the valves 2, 3 are closed, and the valve 1 is opened to continue the test. This is repeated until the gas desorption rate test of the rock sample 6 is completed.
  • the test device for testing the gas desorption rate of shale gas/coal gas in the embodiment of the present invention can not only measure the mass of the liquid discharged from the gas storage tank by using the mass meter, but also obtain the volume of the liquid by the density of the known liquid, thereby realizing The volume of gas is measured, and the volume of gas desorbed from rock samples at different time intervals can be recorded by computer to obtain the rate of desorption of rock gas, thus providing basic data for studying the gas storage capacity of shale and coal seams in a certain area.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • 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

L'invention porte sur un appareil pour tester un taux de désorption de gaz de roche dense, lequel appareil est constitué par un appareil de désorption de gaz, un appareil de mesure de volume de gaz et un ordinateur. L'appareil de désorption de gaz comprend un extracteur de carotte, une pompe d'appoint et un manomètre; l'appareil de mesure de volume de gaz comprend un réservoir de stockage de gaz, un tuyau souple en caoutchouc, un instrument de mesure de qualité, un liquide spécial, un réservoir de stockage de liquide et un film mince, le réservoir de gaz de stockage stockant le liquide spécial, et le réservoir de stockage de liquide stockant le liquide spécial; l'extracteur de carotte produisant une pression d'encerclement, un gaz dans un échantillon de roche est désorbé et refoulé vers le réservoir de stockage de gaz à travers une vanne, et le gaz refoule le liquide spécial dans le réservoir de stockage de gaz vers le réservoir de stockage de liquide; le poids du liquide spécial refoulé est mesuré par l'instrument de mesure de qualité et est transmis en temps réel par l'intermédiaire d'une ligne de transmission de données à l'ordinateur pour enregistrer le poids du liquide spécial refoulé en temps réel, et l'ordinateur calcule automatiquement le volume du liquide spécial refoulé en temps réel avec la densité connue du liquide spécial; et l'ordinateur calcule le taux de désorption de l'échantillon de roche en fonction du volume du liquide spécial refoulé en temps réel.
PCT/CN2014/070395 2014-01-09 2014-01-09 Appareil pour tester un taux de désorption de gaz de roche dense WO2015103758A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL416702A PL241016B1 (pl) 2014-01-09 2014-01-09 Urządzenie i sposób badania szybkości desorpcji gazu dla zwartej skały
AU2014377273A AU2014377273B2 (en) 2014-01-09 2014-01-09 Apparatus for testing dense rock gas desorption rate
CN201480056316.0A CN105637340A (zh) 2014-01-09 2014-01-09 致密岩石气体解析速率测试装置
PCT/CN2014/070395 WO2015103758A1 (fr) 2014-01-09 2014-01-09 Appareil pour tester un taux de désorption de gaz de roche dense

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/070395 WO2015103758A1 (fr) 2014-01-09 2014-01-09 Appareil pour tester un taux de désorption de gaz de roche dense

Publications (1)

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WO2015103758A1 true WO2015103758A1 (fr) 2015-07-16

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CN (1) CN105637340A (fr)
AU (1) AU2014377273B2 (fr)
PL (1) PL241016B1 (fr)
WO (1) WO2015103758A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105203428A (zh) * 2015-11-04 2015-12-30 中国地质科学院地质力学研究所 一种页岩含气量中损失气含量的确定方法
CN107014717A (zh) * 2017-03-29 2017-08-04 铜仁中能天然气有限公司 一种页岩气井中损失气解吸气量的测试方法及其装置
CN108663285A (zh) * 2018-05-14 2018-10-16 铜仁中能天然气有限公司 针对常压地层新型页岩气现场解吸试验装置及试验方法
CN110608975A (zh) * 2019-09-23 2019-12-24 中国地质大学（武汉） 一种气体含量测试装置及其测试方法和应用
CN113866380A (zh) * 2021-09-29 2021-12-31 中海石油(中国)有限公司 一种高煤阶煤层游离气含量测定装置及测定方法
CN114544424A (zh) * 2022-03-14 2022-05-27 中煤科工集团沈阳研究院有限公司 一种井下煤层瓦斯含量快速自动测定方法及装置

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CN106525637A (zh) * 2016-12-27 2017-03-22 重庆矿产资源开发有限公司 一种页岩含气量测试装置及测试方法
CN107449641B (zh) * 2017-09-16 2023-12-01 中国地质大学（武汉） 一种无间断连续收集页岩解吸气的装置和方法
CN107449693B (zh) * 2017-09-16 2023-12-01 中国地质大学（武汉） 一种基于无间断连续收集计算页岩含气量的装置和方法
CN110988212B (zh) * 2019-12-26 2021-01-29 中国矿业大学(北京) 一种页岩氮气产量测试方法
CN111337380B (zh) * 2020-04-16 2023-04-07 重庆工程职业技术学院 一种煤样瓦斯解析量测定装置
CN113670769B (zh) * 2021-08-18 2022-10-18 中国石油大学(北京) 一种模拟海相页岩地层抬升过程中含气量变化的方法

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CN201053943Y (zh) * 2007-05-08 2008-04-30 中国矿业大学 高精度瓦斯放散初速度测定装置
CN101403674A (zh) * 2008-11-14 2009-04-08 中国农业大学 通过间接体积快速测定沼气中甲烷含量的方法
CN102607990A (zh) * 2012-03-05 2012-07-25 河南理工大学 一种煤样瓦斯解吸速度全程自动测试方法和装置
CN102879290A (zh) * 2012-09-25 2013-01-16 成都理工大学 一种煤岩解吸附试验方法

Cited By (8)

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Publication number Priority date Publication date Assignee Title
CN105203428A (zh) * 2015-11-04 2015-12-30 中国地质科学院地质力学研究所 一种页岩含气量中损失气含量的确定方法
CN107014717A (zh) * 2017-03-29 2017-08-04 铜仁中能天然气有限公司 一种页岩气井中损失气解吸气量的测试方法及其装置
CN107014717B (zh) * 2017-03-29 2024-04-12 上海瑞达峰致能源科技股份有限公司 一种页岩气井中损失气解吸气量的测试方法及其装置
CN108663285A (zh) * 2018-05-14 2018-10-16 铜仁中能天然气有限公司 针对常压地层新型页岩气现场解吸试验装置及试验方法
CN110608975A (zh) * 2019-09-23 2019-12-24 中国地质大学（武汉） 一种气体含量测试装置及其测试方法和应用
CN113866380A (zh) * 2021-09-29 2021-12-31 中海石油(中国)有限公司 一种高煤阶煤层游离气含量测定装置及测定方法
CN113866380B (zh) * 2021-09-29 2023-12-08 中海石油(中国)有限公司 一种高煤阶煤层游离气含量测定装置及测定方法
CN114544424A (zh) * 2022-03-14 2022-05-27 中煤科工集团沈阳研究院有限公司 一种井下煤层瓦斯含量快速自动测定方法及装置

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Publication number Publication date
AU2014377273B2 (en) 2017-07-27
PL416702A1 (pl) 2017-01-02
PL241016B1 (pl) 2022-07-18
AU2014377273A1 (en) 2016-01-21
CN105637340A (zh) 2016-06-01

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