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Donald G. REITSMA
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Houston, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Managed pressure drilling with rig heave compensation
Patent number
10,132,129
Issue date
Nov 20, 2018
Smith International, Inc.
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Managed pressure drilling with rig heave compensation
Patent number
9,429,007
Issue date
Aug 30, 2016
Smith International, Inc.
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore annular pressure control system and method using gas lift...
Patent number
9,376,875
Issue date
Jun 28, 2016
Smith International, Inc.
Donald D. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for drilling through nuisance hydrocarbon bearing formations
Patent number
9,284,799
Issue date
Mar 15, 2016
Smith International, Inc.
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for maintaining wellbore pressure
Patent number
8,844,633
Issue date
Sep 30, 2014
AT-Balance Americas, LLC
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for precise control of wellbore fluid flow
Patent number
8,757,272
Issue date
Jun 24, 2014
Smith International, Inc.
Yawan Couturier
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for determining fluid control events in a borehole using a d...
Patent number
8,567,525
Issue date
Oct 29, 2013
Smith International, Inc.
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for determining formation fluid entry into or drilling fluid...
Patent number
7,562,723
Issue date
Jul 21, 2009
AT-Balance Americas, LLC
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling system and method
Patent number
7,350,597
Issue date
Apr 1, 2008
At-Balance Americas LLC
Donald Gordon Reitsma
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
MANAGED PRESSURE DRILLING WITH RIG HEAVE COMPENSATION
Publication number
20160348452
Publication date
Dec 1, 2016
Smith International, Inc.
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Application
WELLBORE ANNULAR PRESSURE CONTROL SYSTEM AND METHOD USING GAS LIFT...
Publication number
20150083429
Publication date
Mar 26, 2015
Smith International, Inc.
Donald D. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Application
MANAGED PRESSURE DRILLING WITH RIG HEAVE COMPENSATION
Publication number
20120241163
Publication date
Sep 27, 2012
PRAD RESEARCH AND DEVELOPMENT LIMITED
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD AND APPARATUS FOR PRECISE CONTROL OF WELLBORE FLUID FLOW
Publication number
20120067591
Publication date
Mar 22, 2012
Yawan Couturier
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR DRILLING THROUGH NUISANCE HYDROCARBON BEARING FORMATIONS
Publication number
20110284290
Publication date
Nov 24, 2011
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR MAINTAINING WELLBORE PRESSURE
Publication number
20110232914
Publication date
Sep 29, 2011
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR DETERMINING FLUID CONTROL EVENTS IN A BOREHOLE USING A D...
Publication number
20110042076
Publication date
Feb 24, 2011
At Balance Americas LLC
Donald G. REITSMA
E21 - EARTH DRILLING MINING
Information
Patent Application
WELLBORE ANNULAR PRESSURE CONTROL SYSTEM AND METHOD USING ACCUMULAT...
Publication number
20100186960
Publication date
Jul 29, 2010
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Application
Pressure Safety System for Use With a Dynamic Annular Pressure Cont...
Publication number
20070246263
Publication date
Oct 25, 2007
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for Controlling Fluid Pressure in a Borehole Using a Dynamic...
Publication number
20070227774
Publication date
Oct 4, 2007
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for determining formation fluid entry into or drilling fluid...
Publication number
20070151762
Publication date
Jul 5, 2007
AtBalance Americas LLC
Donald G. Reitsma
E21 - EARTH DRILLING MINING
Information
Patent Application
Drilling system and method
Publication number
20070151763
Publication date
Jul 5, 2007
Donald Gordan Reitsma
E21 - EARTH DRILLING MINING