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发明名称
ANNULUS MUD FLOW RATE MEASUREMENT WHILE DRILLING AND USE THEREOF TO DETECT WELL DYSFUNCTION
摘要
申请公布号
EP2417331(A1)
申请公布日期
2012.02.15
申请号
EP20100713278
申请日期
2010.03.12
申请人
BP CORPORATION NORTH AMERICA INC.
发明人
ALBERTY, MARK, W.
分类号
E21B47/08;E21B47/10
主分类号
E21B47/08
代理机构
代理人
主权项
地址
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