|
| US4137494 | 25 Feb 1977 | 30 Ene 1979 | Delray Electronics Inc. | Apparatus and method for analyzing oil content of water |
| US4644263 | 13 Dic 1984 | 17 Feb 1987 | Marathon Oil Company | Method and apparatus for measuring water in crude oil |
| US4974446 | 27 Sep 1989 | 4 Dic 1990 | Schlumberger Technology Corporation | Method and apparatus for analyzing a multi-phase flow in a hydrocarbon well |
| US5361206 | 3 Jun 1992 | 1 Nov 1994 | Schlumberger Technology Corporation | Method of analyzing a two-phase flow in a hydrocarbon well |
| US5661237 | 7 Jun 1995 | 26 Ago 1997 | Schlumberger Technology Corporation | Method and apparatus for locally measuring flow parameters of a multiphase fluid |
| US6619118 | 25 Abr 2002 | 16 Sep 2003 | SepSensor Inc. | Monitoring system |
| US6879935 | 28 Jun 2003 | 12 Abr 2005 | SepSensor Inc. | Monitoring system with thermal probe for detection of layers in stratified media |
| US7603236 | 21 Ago 2006 | 13 Oct 2009 | Schlumberger Technology Corporation | Method to determine fluid phase distribution and quantify holdup in a wellbore |