| 9074436 |
Methods for installing sensors in a borehole |
Douwe Johannes Runia |
2015-07-07 |
| 8925627 |
Coiled umbilical tubing |
Michael Tupper, Craig Hazelton, Kimiko Kano, Matthew Hooker, Naseem Munshi |
2015-01-06 |
| 8833441 |
Cable suspended pumping system |
Lance I. Fielder |
2014-09-16 |
| 8770271 |
Electric submersible pumping system for dewatering gas wells |
Lance I. Fielder |
2014-07-08 |
| 8522881 |
Thermal hydrate preventer |
Craig Hazelton, Michael Tupper |
2013-09-03 |
| 8443900 |
Electric submersible pumping system and method for dewatering gas wells |
Lance I. Fielder |
2013-05-21 |
| 7810583 |
Drilling systems and methods |
Michael RUGGIER |
2010-10-12 |
| 7640965 |
Creating a well abandonment plug |
Martin Bosma, Erik Kerst Cornelissen, Klisthenis Dimitriadis, Mike Peters |
2010-01-05 |
| 7527095 |
Method of creating a zonal isolation in an underground wellbore |
Andreas Bloess, Martin Bosma, Erik Kerst Cornelissen, Michael Caspar Gunningham, Cornelis Jan Kenter |
2009-05-05 |
| 7281592 |
Injecting a fluid into a borehole ahead of the bit |
Douwe Johannes Runia, David George Livesey Smith |
2007-10-16 |
| 7282663 |
Forge welding process |
Robert Andrew Alford, Johannis Josephus Den Boer, Anthony Thomas Cole, Klisthenis Dimitriadis, Michalakis Efthymiou +3 more |
2007-10-16 |
| 7207398 |
Steerable rotary drill bit assembly with pilot bit |
Douwe Johannes Runia, David George Livesey Smith |
2007-04-24 |
| 7152657 |
In-situ casting of well equipment |
Martin Bosma, Erik Kerst Cornelissen, Klisthenis Dimitriadis, Mike Peters |
2006-12-26 |
| 6619402 |
System for enhancing fluid flow in a well |
Marc Emmanuel Amory, Roelof Daling, Carlos A. Glandt |
2003-09-16 |
| 6464001 |
Multilateral wellbore system |
Stephen Richard Braithwaite, Wilhelmus Hubertus Paulus Maria Heijnen |
2002-10-15 |
| 6380476 |
Generating electric power in a wellbore |
Wilhelmus Hubertus Paulus Maria Heijnen, John Foreman Stewart |
2002-04-30 |
| 5348095 |
Method of creating a wellbore in an underground formation |
Wilhelmus Christianus Maria Lohbeck, Paul R. Choate, Martin Donnelly |
1994-09-20 |
| 5225638 |
Hydrogen-oxygen acoustic logging device |
Edwinus Nicolaas Maria Quint, Jacobus J. W. Staal |
1993-07-06 |
| 5168932 |
Detecting outflow or inflow of fluid in a wellbore |
Johannes H. G. Surewaard, Peter Oosterling |
1992-12-08 |
| 5117926 |
Method and system for controlling vibrations in borehole equipment |
Ivo Petrus Jozef Maria Stulemeijer, Johan Dirk Jansen, Bartholomeus Gerardus Gosewinus Van Walstijn |
1992-06-02 |
| 4890682 |
Apparatus for vibrating a pipe string in a borehole |
Ivo Petrus Jozef Maria Stulemeijer |
1990-01-02 |
| 4880066 |
Assembly for directional drilling of boreholes |
Abe Steiginga |
1989-11-14 |
| 4836301 |
Method and apparatus for directional drilling |
Johannes Cornelis Maria Van Dongen |
1989-06-06 |
| 4784223 |
Forming an impermeable coating on a borehole wall |
Robert B. Stewart |
1988-11-15 |
