YANG Kuancai
Henan No.4 Geological Survey Institute Co., Ltd., ZhengzhouHenan450001, China;Henan Provincial Engineering and Technology Research Centre for Small Diameter Drilling,ZhengzhouHenan450001, ChinaMENG Yanjie
Henan No.4 Geological Survey Institute Co., Ltd., ZhengzhouHenan450001, China;Henan Provincial Engineering and Technology Research Centre for Small Diameter Drilling,ZhengzhouHenan450001, ChinaXU Quanwei
Faculty of Engineering, China University of Geosciences, WuhanHubei430074, ChinaYANG Xianyu
Faculty of Engineering, China University of Geosciences, WuhanHubei430074, ChinaCAI Jihua
Faculty of Engineering, China University of Geosciences, WuhanHubei430074, China1.Henan No.4 Geological Survey Institute Co., Ltd., ZhengzhouHenan450001, China;2.Henan Provincial Engineering and Technology Research Centre for Small Diameter Drilling,ZhengzhouHenan450001, China;3.Faculty of Engineering, China University of Geosciences, WuhanHubei430074, China
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