Inventor
ELLINGSRUD SVEIN
NO20 patents
⚠️ This page may combine multiple inventors who share the name “ELLINGSRUD SVEIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
STATOIL ASA
6 patentsUS7126338B2Oct 24, 2006
Electromagnetic surveying for hydrocarbon reservoirs
STATOIL ASA106 citations98
US6864684B2Mar 8, 2005
Electromagnetic methods and apparatus for determining the content of subterranean reservoirs
STATOIL ASA44 citations96
US6859038B2Feb 22, 2005
Method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves
STATOIL ASA63 citations96
US6717411B2Apr 6, 2004
Electromagnetic method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves
STATOIL ASA61 citations96
US6696839B2Feb 24, 2004
Electromagnetic methods and apparatus for determining the content of subterranean reservoirs
STATOIL ASA51 citations96
US6900639B2May 31, 2005
Electromagnetic method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves
STATOIL ASA30 citations92
NORSKE STATS OLJESELSKAP
5 patentsUS6628119B1Sep 30, 2003
Method and apparatus for determining the content of subterranean reservoirs
NORSKE STATS OLJESELSKAP124 citations98
US6480000B1Nov 12, 2002
Device and method for measurement of resistivity outside of a wellpipe
NORSKE STATS OLJESELSKAP112 citations97
US6525540B1Feb 25, 2003
Method and device for detection of em waves in a well
NORSKE STATS OLJESELSKAP63 citations96
US6556014B1Apr 29, 2003
Device and method for measurement by guided waves on a metal string in a well
NORSKE STATS OLJESELSKAP56 citations92
US6714153B1Mar 30, 2004
Device for electromagnetic detection of geological properties in a well
NORSKE STATS OLJESELSKAP22 citations91
ELECTROMAGNETIC GEOSERVICES AS
5 patentsUS7038456B2May 2, 2006
Method and apparatus for determining the nature of subterranean reservoirs
ELECTROMAGNETIC GEOSERVICES AS44 citations95
US7145341B2Dec 5, 2006
Method and apparatus for recovering hydrocarbons from subterranean reservoirs
ELECTROMAGNETIC GEOSERVICES AS40 citations92
US7202669B2Apr 10, 2007
Method and apparatus for determining the nature of subterranean reservoirs
ELECTROMAGNETIC GEOSERVICES AS33 citations89
US7919965B2Apr 5, 2011
Source arrangement and method for generating electromagnetic wavefields
ELECTROMAGNETIC GEOSERVICES AS15 citations79
US7567084B2Jul 28, 2009
Method and apparatus for determining the nature of submarine reservoirs
ELECTROMAGNETIC GEOSERVICES AS18 citations77
ELLINGSRUD SVEIN
3 patentsUS8228066B2Jul 24, 2012
Instrument for measuring electromagnetic signals
ELLINGSRUD SVEIN8 citations76
US8075685B2Dec 13, 2011
Controlled deterioration of non-reinforced concrete anchors
ELLINGSRUD SVEIN3 citations50
US9097816B2Aug 4, 2015
Apparatus for detecting low frequency electromagnetic field responses from a subsurface environment
ELLINGSRUD SVEIN0 citations40