发明名称 PULSE RATE OF PENETRATION ENHANCEMENT DEVICE AND METHOD
摘要 Disclosed is a system and device relating to flow pulsing for use in down-hole drilling rate of penetration (ROP) enhancement and measurement while drilling (MWD) using a pulse drilling device (PDD) with a fast acting valve in conjunction with a pilot valve to produce high pressure, high amplitude, low duration pressure pulses.
申请公布号 WO2009082453(A3) 申请公布日期 2009.10.15
申请号 WO2008US13804 申请日期 2008.12.17
申请人 KUSKO, DAVID, JOHN;VECSERI, GABOR;LERNER, DANIEL, MAURICE 发明人 KUSKO, DAVID, JOHN;VECSERI, GABOR;LERNER, DANIEL, MAURICE
分类号 E21B44/02;E21B4/14;E21B7/24 主分类号 E21B44/02
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