公开(公告)号：EP3204606A4

公开(公告)日：2018-07-04

申请号：EP15849274

申请日：2015-10-08

申请人： BAKER HUGHES INC

发明人： OCHOA BRIAN B ,  KRUSPE THOMAS

IPC分类号： E21B49/08 ,  E21B47/00 ,  G01N9/00 ,  G01N11/16 ,  G01V1/40 ,  G01V1/46

CPC分类号： E21B47/101 ,  G01N9/002 ,  G01N11/162 ,  G01N2009/006 ,  G01N2011/0086

摘要： Systems, devices and methods for determining a parameter of interest of a well fluid relating to a well intersecting a subterranean formation using resonant vibration. The apparatus may include a resonator assembly. The resonator assembly may comprise a plurality of resonant tines structurally coupled to behave as a single resonator. At least one resonant tine of the plurality of resonant tines may include a soft magnetic tine head comprising soft magnetic material uncontained by a supporting surface. Each corresponding tine of the plurality of resonant tines may be formed by at least the resonant tine head and a tine shaft. Each corresponding tine may have a cross section perpendicular to a longitudinal axis of the corresponding tine, the cross section including a tine head, where the cross section has a substantially continuous material composition. Each tine shaft may terminate at the tine head.