P

Inventor

JOHNSTAD SVEIN ERLING

NO7 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSTAD SVEIN ERLING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NORSK HYDRO AS

4 patents
US7453265B2Nov 18, 2008

Device for monitoring of oil-water interface

NORSK HYDRO AS21 citations92
US7453763B2Nov 18, 2008

Geophysical data acquisition system

NORSK HYDRO AS51 citations90
US7456632B2Nov 25, 2008

Method for monitoring low-resistivity formation using polarized waves

NORSK HYDRO AS17 citations83
US7812611B2Oct 12, 2010

Shallow marine electromagnetic hydrocarbon prospecting

NORSK HYDRO AS6 citations58

JOHNSTAD SVEIN ERLING

1 patent
US9176254B2Nov 3, 2015

Electromagnetic and seismic streamer cable and method for using such a streamer cable

JOHNSTAD SVEIN ERLING11 citations77

MULTIFIELD GEOPHYSICS AS

1 patent
US7982465B2Jul 19, 2011

Electromagnetic method on shallow water using a controlled source

MULTIFIELD GEOPHYSICS AS7 citations76

FARRELLY BRIAN ANTHONY

1 patent
US8299794B2Oct 30, 2012

Method for electromagnetic geophysical surveying of subsea rock formations

FARRELLY BRIAN ANTHONY9 citations75