Development of ZY-73 Coal Seam Gas Pressure Measuring Instrument

Home > Archive>Volume 36, Issue 11, 2009 >28-30

Development of ZY-73 Coal Seam Gas Pressure Measuring Instrument
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                        LI Zi-zhangLI Zi-zhang
The Institute of Exploration Technology， CAGS
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FANG YongFANG Yong
The Institute of Exploration Technology， CAGS
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FAN La-shengFAN La-sheng
The Institute of Exploration Technology， CAGS
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XIAO HuaXIAO Hua
No.113 Geological Party， Sichuan Bureau of Geology and Mineral Exploration
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Clc Number:TD712+.55
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Abstract:

The paper introduced the ZY-73 coal seam gas pressure measuring instrument about its design idea， working principle， main technical features and service conditions.

Key words:borehole; gas pressure measurement; mud channel

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History

Received:September 26,2009
Revised:September 26,2009
Adopted:October 01,2009
Online: December 10,2009
Published: November 25,2009

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