发明名称 Drilling fluid pump systems and methods
摘要 A system for pumping fluid (e.g., but not limited to, drilling fluid), the system having pump apparatus; including a plurality of removable pump modules; and, in certain aspects, removable valve cartridges for such modules.
申请公布号 US8061445(B2) 申请公布日期 2011.11.22
申请号 US20080228524 申请日期 2008.08.13
申请人 YATER RONALD WILLIAM;SEYFFERT KENNETH WAYNE;TATE, JR. MAURICE;NATIONAL OILWELL VARCO L.P. 发明人 YATER RONALD WILLIAM;SEYFFERT KENNETH WAYNE;TATE, JR. MAURICE
分类号 E21B44/00 主分类号 E21B44/00
代理机构 代理人
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