About Liu Guoqiang
About School of Construction Machinery, Chang’an University
About Wang Chenlong
About Nanpu Operation District of PetroChina Jidong Oilfield Company
About Cao Yi
About Exploration and Development Research Institute, PetroChina Southwest Oil & Gas Field Company
About Hu Yongbiao
About School of Construction Machinery, Chang’an University
About Zhang Kang
About Linfen Branch of PetroChina Coalbed Methane Co. Ltd.
About Yuan Shaofeng
About Linfen Branch of PetroChina Coalbed Methane Co. Ltd.
About Shiyou Zuancai Gongyi
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About production process(control)
About optimization
About coal field gas
About assembly process
About well(oil and gas)
About underground
About construction method
About 運転状態
About 比較分析
About 原因分析
About 貯留層
About 炭層メタン
About coalbed methane (CBM) well
About reasons for workover
About rod testing
About field test
About application result
About Well completion and tests
About Drilling in general
About Drilling
About 炭層メタン
About 貯留層
About 原因分析
About プロセス
About 試験