Harald Westerdahl

Person

Dal, NO

People

Patents Grantslast 30 patents

Information Patent Grant
P/S wave measurement and compensation
- Patent number 11,733,418
- Issue date Aug 22, 2023
- Statoil Petroleum AS
- Harald Westerdahl
- G01 - MEASURING TESTING
Information Patent Grant
Method for deghosting seismic data
- Patent number 11,181,654
- Issue date Nov 23, 2021
- EQUINOR ENERGY AS
- Harald Westerdahl
- G01 - MEASURING TESTING
Information Patent Grant
Seismic sensor recording system
- Patent number 10,386,520
- Issue date Aug 20, 2019
- Statoil Petroleum AS
- Harald Westerdahl
- G01 - MEASURING TESTING
Information Patent Grant
P/S wave measurement and compensation
- Patent number 10,365,388
- Issue date Jul 30, 2019
- Statoil Petroleum AS
- Harald Westerdahl
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for marine seismic survey
- Patent number 9,389,323
- Issue date Jul 12, 2016
- Statoil Petroleum AS
- Lasse Amundsen
- G01 - MEASURING TESTING
Information Patent Grant
Method of providing seismic data
- Patent number 9,081,111
- Issue date Jul 14, 2015
- Statoil Petroleum AS
- Lasse Amundsen
- G01 - MEASURING TESTING
Information Patent Grant
Electromagnetic method on shallow water using a controlled source
- Patent number 7,982,465
- Issue date Jul 19, 2011
- Multifield Geophysics AS
- Harald Westerdahl
- G01 - MEASURING TESTING
Information Patent Grant
Method for monitoring low-resistivity formation using polarized waves
- Patent number 7,456,632
- Issue date Nov 25, 2008
- Norsk Hydro ASA
- Svein Erling Johnstad
- G01 - MEASURING TESTING
Information Patent Grant
Device for monitoring of oil-water interface
- Patent number 7,453,265
- Issue date Nov 18, 2008
- Norsk Hydro ASA
- Svein Erling Johnstad
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for recovering hydrocarbons from subterranean...
- Patent number 7,145,341
- Issue date Dec 5, 2006
- Electromagnetic Geoservices AS
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Grant
Electromagnetic surveying for mapping the content of subterranean r...
- Patent number 7,026,819
- Issue date Apr 11, 2006
- Statoil ASA
- Terje Eidesmo
- G01 - MEASURING TESTING
Information Patent Grant
Electromagnetic method and apparatus for determining the nature of...
- Patent number 6,900,639
- Issue date May 31, 2005
- Statoil Asa
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Grant
Electromagnetic methods and apparatus for determining the content o...
- Patent number 6,864,684
- Issue date Mar 8, 2005
- Statoil Asa
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for determining the nature of subterranean res...
- Patent number 6,859,038
- Issue date Feb 22, 2005
- Statoil Asa
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Grant
Electromagnetic method and apparatus for determining the nature of...
- Patent number 6,717,411
- Issue date Apr 6, 2004
- Statoil Asa
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Grant
Device for electromagnetic detection of geological properties in a...
- Patent number 6,714,153
- Issue date Mar 30, 2004
- Den Norske Stats Oljeselskap A.S.
- Fan-Nian Kong
- G01 - MEASURING TESTING
Information Patent Grant
Electromagnetic methods and apparatus for determining the content o...
- Patent number 6,696,839
- Issue date Feb 24, 2004
- Statoil Asa
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for determining the content of subterranean re...
- Patent number 6,628,119
- Issue date Sep 30, 2003
- Den Norske Stats Oljeselskap A.S.
- Terje Eidesmo
- G01 - MEASURING TESTING
Information Patent Grant
Shear wave generator
- Patent number 6,612,397
- Issue date Sep 2, 2003
- Norges Geotekniske Institutt
- Per Sparrevik
- G01 - MEASURING TESTING
Information Patent Grant
Device and method for measurement by guided waves on a metal string...
- Patent number 6,556,014
- Issue date Apr 29, 2003
- Den Norske Stats Oljeselskap A.S.
- Fan-Nian Kong
- G01 - MEASURING TESTING
Information Patent Grant
Method and device for detection of em waves in a well
- Patent number 6,525,540
- Issue date Feb 25, 2003
- Den Norske Stats Oljeselskap A.S.
- Fan-Nian Kong
- G01 - MEASURING TESTING
Information Patent Grant
Device and method for measurement of resistivity outside of a wellpipe
- Patent number 6,480,000
- Issue date Nov 12, 2002
- Den Norske Stats Oljeselskap A.S.
- Fan-Nian Kong
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
A METHOD FOR DEGHOSTING SEISMIC DATA
- Publication number 20200088900
- Publication date Mar 19, 2020
- Equinor Energy AS
- Harald WESTERDAHL
- G01 - MEASURING TESTING
Information Patent Application
SEISMIC SENSOR RECORDING SYSTEM
- Publication number 20190271790
- Publication date Sep 5, 2019
- STATOIL PETROLEUM AS
- Harald WESTERDAHL
- G01 - MEASURING TESTING
Information Patent Application
P/S WAVE MEASUREMENT AND COMPENSATION
- Publication number 20190250297
- Publication date Aug 15, 2019
- STATOIL PETROLEUM AS
- Harald WESTERDAHL
- G01 - MEASURING TESTING
Information Patent Application
P/S WAVE MEASUREMENT AND COMPENSATION
- Publication number 20170075008
- Publication date Mar 16, 2017
- STATOIL PETROLEUM AS
- Harald WESTERDAHL
- G01 - MEASURING TESTING
Information Patent Application
SEISMIC SENSOR RECORDING SYSTEM
- Publication number 20170075014
- Publication date Mar 16, 2017
- STATOIL PETROLEUM AS
- Harald WESTERDAHL
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS FOR MARINE SEISMIC SURVEY
- Publication number 20140334256
- Publication date Nov 13, 2014
- Lasse Amundsen
- G01 - MEASURING TESTING
Information Patent Application
METHOD OF PROVIDING SEISMIC DATA
- Publication number 20110242935
- Publication date Oct 6, 2011
- Lasse Amundsen
- G01 - MEASURING TESTING
Information Patent Application
Electromagnetic Method on Shallow Water Using a Controlled Source
- Publication number 20090278541
- Publication date Nov 12, 2009
- Multifield Geophysics AS
- Harald Westerdahl
- G01 - MEASURING TESTING
Information Patent Application
SHEAR WAVE GENERATOR
- Publication number 20090114473
- Publication date May 7, 2009
- NGI
- Harald Westerdahl
- G01 - MEASURING TESTING
Information Patent Application
Device for monitoring of oil-water interface
- Publication number 20070040557
- Publication date Feb 22, 2007
- Svein Erling Johnstad
- E21 - EARTH DRILLING MINING
Information Patent Application
Method for monitoring a high resistivity reservoir rock formation
- Publication number 20060255809
- Publication date Nov 16, 2006
- Svein Erling Johnstad
- G01 - MEASURING TESTING
Information Patent Application
Method and apparatus for determining the nature of subterranean res...
- Publication number 20050017722
- Publication date Jan 27, 2005
- Statoil ASA
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Application
Electromagnetic method and apparatus for determining the nature of...
- Publication number 20040176910
- Publication date Sep 9, 2004
- Statoil ASA
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Application
Electromagnetic methods and apparatus for determining the content o...
- Publication number 20040150404
- Publication date Aug 5, 2004
- Statoil ASA
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Application
Method and apparatus for determining the nature of subterranean res...
- Publication number 20040124842
- Publication date Jul 1, 2004
- Den Norske Stats Oljeselskap A.S.
- Terje Eidesmo
- G01 - MEASURING TESTING
Information Patent Application
Method and apparatus for determining the nature of subterranean res...
- Publication number 20030052685
- Publication date Mar 20, 2003
- Statoil ASA
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Application
Method and apparatus for determining the nature of subterranean res...
- Publication number 20030048105
- Publication date Mar 13, 2003
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Application
Method and apparatus for determining the nature of subterranean res...
- Publication number 20030043692
- Publication date Mar 6, 2003
- Svein Ellingsrud
- G01 - MEASURING TESTING
Information Patent Application
Shear wave generator
- Publication number 20020181330
- Publication date Dec 5, 2002
- Per Sparrevik
- G01 - MEASURING TESTING

Harald Westerdahl

Person

Patents Grantslast 30 patents

P/S wave measurement and compensation

Method for deghosting seismic data

Seismic sensor recording system

P/S wave measurement and compensation

Apparatus for marine seismic survey

Method of providing seismic data

Electromagnetic method on shallow water using a controlled source

Method for monitoring low-resistivity formation using polarized waves

Device for monitoring of oil-water interface

Method and apparatus for recovering hydrocarbons from subterranean...

Electromagnetic surveying for mapping the content of subterranean r...

Electromagnetic method and apparatus for determining the nature of...

Electromagnetic methods and apparatus for determining the content o...

Method and apparatus for determining the nature of subterranean res...

Electromagnetic method and apparatus for determining the nature of...

Device for electromagnetic detection of geological properties in a...

Electromagnetic methods and apparatus for determining the content o...

Method and apparatus for determining the content of subterranean re...

Shear wave generator

Device and method for measurement by guided waves on a metal string...

Method and device for detection of em waves in a well

Device and method for measurement of resistivity outside of a wellpipe

Patents Applicationslast 30 patents

A METHOD FOR DEGHOSTING SEISMIC DATA

SEISMIC SENSOR RECORDING SYSTEM

P/S WAVE MEASUREMENT AND COMPENSATION

P/S WAVE MEASUREMENT AND COMPENSATION

SEISMIC SENSOR RECORDING SYSTEM

APPARATUS FOR MARINE SEISMIC SURVEY

METHOD OF PROVIDING SEISMIC DATA

Electromagnetic Method on Shallow Water Using a Controlled Source

SHEAR WAVE GENERATOR

Device for monitoring of oil-water interface

Method for monitoring a high resistivity reservoir rock formation

Method and apparatus for determining the nature of subterranean res...

Electromagnetic method and apparatus for determining the nature of...

Electromagnetic methods and apparatus for determining the content o...

Method and apparatus for determining the nature of subterranean res...

Method and apparatus for determining the nature of subterranean res...

Method and apparatus for determining the nature of subterranean res...

Method and apparatus for determining the nature of subterranean res...

Shear wave generator