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Robert Nicholas Worrall
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GD Rijswijk, NL
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Patents Grants
last 30 patents
Information
Patent Grant
Creating a well abandonment plug
Patent number
7,640,965
Issue date
Jan 5, 2010
Shell Oil Company
Martin Gerard Rene Bosma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of creating a zonal isolation in an underground wellbore
Patent number
7,527,095
Issue date
May 5, 2009
Shell Oil Company
Andreas Bloess
E21 - EARTH DRILLING MINING
Information
Patent Grant
Forge welding process
Patent number
7,282,663
Issue date
Oct 16, 2007
Shell Oil Company
Robert Andrew Alford
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Injecting a fluid into a borehole ahead of the bit
Patent number
7,281,592
Issue date
Oct 16, 2007
Shell Oil Company
Douwe Johannes Runia
E21 - EARTH DRILLING MINING
Information
Patent Grant
Steerable rotary drill bit assembly with pilot bit
Patent number
7,207,398
Issue date
Apr 24, 2007
Shell Oil Company
Douwe Johannes Runia
E21 - EARTH DRILLING MINING
Information
Patent Grant
In-situ casting of well equipment
Patent number
7,152,657
Issue date
Dec 26, 2006
Shell Oil Company
Martin Gerard Rene Bosma
E21 - EARTH DRILLING MINING
Information
Patent Grant
System for enhancing fluid flow in a well
Patent number
6,619,402
Issue date
Sep 16, 2003
Shell Oil Company
Marc Emmanuel Amory
E21 - EARTH DRILLING MINING
Information
Patent Grant
Multilateral wellbore system
Patent number
6,464,001
Issue date
Oct 15, 2002
Shell Oil Company
Stephen Richard Braithwaite
E21 - EARTH DRILLING MINING
Information
Patent Grant
Generating electric power in a wellbore
Patent number
6,380,476
Issue date
Apr 30, 2002
Shell Oil Company
Wilhelmus Hubertus Paulus Maria Heijnen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of creating a wellbore in an underground formation
Patent number
5,348,095
Issue date
Sep 20, 1994
Shell Oil Company
Robert N. Worrall
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydrogen-oxygen acoustic logging device
Patent number
5,225,638
Issue date
Jul 6, 1993
Shell Oil Company
Edwinus N. M. Quint
G01 - MEASURING TESTING
Information
Patent Grant
Detecting outflow or inflow of fluid in a wellbore
Patent number
5,168,932
Issue date
Dec 8, 1992
Shell Oil Company
Robert N. Worrall
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and system for controlling vibrations in borehole equipment
Patent number
5,117,926
Issue date
Jun 2, 1992
Shell Oil Company
Robert N. Worrall
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for vibrating a pipe string in a borehole
Patent number
4,890,682
Issue date
Jan 2, 1990
Shell Oil Company
Robert N. Worrall
E21 - EARTH DRILLING MINING
Information
Patent Grant
Assembly for directional drilling of boreholes
Patent number
4,880,066
Issue date
Nov 14, 1989
Shell Oil Company
Abe Steiginga
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for directional drilling
Patent number
4,836,301
Issue date
Jun 6, 1989
Shell Oil Company
Johannes C. M. Van Dongen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Forming an impermeable coating on a borehole wall
Patent number
4,784,223
Issue date
Nov 15, 1988
Shell Oil Company
Robert N. Worrall
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR APPLYING VIBRATIONS DURING BOREHOLE OPERAT...
Publication number
20120048621
Publication date
Mar 1, 2012
Dynamic Dinosaurs B.V.
Bruce Stewart
E21 - EARTH DRILLING MINING
Information
Patent Application
CREATING A WELL ABANDONMENT PLUG
Publication number
20070137826
Publication date
Jun 21, 2007
Martin Gerard Rene BOSMA
E21 - EARTH DRILLING MINING
Information
Patent Application
Method of creating a zonal isolation in an underground wellbore
Publication number
20060124304
Publication date
Jun 15, 2006
Andreas Bloess
E21 - EARTH DRILLING MINING
Information
Patent Application
Injecting a fluid into a borehole ahead of the bit
Publication number
20040238218
Publication date
Dec 2, 2004
Douwe Johannes Runia
E21 - EARTH DRILLING MINING
Information
Patent Application
Steerable rotary drill bit assembly with pilot bit
Publication number
20040238221
Publication date
Dec 2, 2004
Douwe Johannes Runia
E21 - EARTH DRILLING MINING
Information
Patent Application
Forge welding process
Publication number
20040232207
Publication date
Nov 25, 2004
Robert Andrew Alford
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
In-situ casting of well equipment
Publication number
20040149418
Publication date
Aug 5, 2004
Martin Gerard Rene Bosma
E21 - EARTH DRILLING MINING