JPS4930602B1 - - Google Patents

Info

Publication number
JPS4930602B1
JPS4930602B1 JP2778264A JP2778264A JPS4930602B1 JP S4930602 B1 JPS4930602 B1 JP S4930602B1 JP 2778264 A JP2778264 A JP 2778264A JP 2778264 A JP2778264 A JP 2778264A JP S4930602 B1 JPS4930602 B1 JP S4930602B1
Authority
JP
Japan
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
Application number
JP2778264A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP2778264A priority Critical patent/JPS4930602B1/ja
Priority to GB2014865A priority patent/GB1095984A/en
Priority to FR17406A priority patent/FR1444107A/fr
Priority to BE664073D priority patent/BE664073A/xx
Publication of JPS4930602B1 publication Critical patent/JPS4930602B1/ja
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Sealing Devices (AREA)
  • Sampling And Sample Adjustment (AREA)
JP2778264A 1964-05-18 1964-05-18 Pending JPS4930602B1 (enrdf_load_stackoverflow)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2778264A JPS4930602B1 (enrdf_load_stackoverflow) 1964-05-18 1964-05-18
GB2014865A GB1095984A (en) 1964-05-18 1965-05-13 A process of extracting the coal mine gases co-existent with coal beds and rock deposits in a coal mine
FR17406A FR1444107A (fr) 1964-05-18 1965-05-18 Procédé pour l'extraction du grisou présent dans les couches de houille et de roches sédimentaires d'une mine de charbon
BE664073D BE664073A (enrdf_load_stackoverflow) 1964-05-18 1965-05-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2778264A JPS4930602B1 (enrdf_load_stackoverflow) 1964-05-18 1964-05-18

Publications (1)

Publication Number Publication Date
JPS4930602B1 true JPS4930602B1 (enrdf_load_stackoverflow) 1974-08-14

Family

ID=12230531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2778264A Pending JPS4930602B1 (enrdf_load_stackoverflow) 1964-05-18 1964-05-18

Country Status (4)

Country Link
JP (1) JPS4930602B1 (enrdf_load_stackoverflow)
BE (1) BE664073A (enrdf_load_stackoverflow)
FR (1) FR1444107A (enrdf_load_stackoverflow)
GB (1) GB1095984A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213103U (enrdf_load_stackoverflow) * 1975-07-15 1977-01-29

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102747980A (zh) * 2012-07-18 2012-10-24 中国矿业大学 膨胀式多级带压快速封孔技术
CN103953386B (zh) * 2014-03-12 2017-02-08 淮北矿业（集团）勘探工程有限责任公司 一种上堵下渗抽采采动区瓦斯的方法
CN109956715A (zh) * 2018-07-18 2019-07-02 中国石油天然气股份有限公司 一种煤岩储层人造岩心及其制备方法
CN109403915A (zh) * 2018-11-27 2019-03-01 陕西陕煤铜川矿业有限公司陈家山煤矿 一种改进的抽放钻孔封孔方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213103U (enrdf_load_stackoverflow) * 1975-07-15 1977-01-29

Also Published As

Publication number Publication date
FR1444107A (fr) 1966-07-01
GB1095984A (en) 1967-12-20
BE664073A (enrdf_load_stackoverflow) 1965-09-16

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