In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic flowmeters and provide fluid measurements...http://www.google.es/patents/US6779407?utm_source=gb-gplus-sharePatente US6779407 - Fluid flow measuring device and method of manufacturing thereof
Fluid flow measuring device and method of manufacturing thereof
