Christopher A. Sawdon

Person

Bicovey, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Wellbore fluid
- Patent number 8,242,059
- Issue date Aug 14, 2012
- BP Exploration Operating Company Limited
- Christopher Alan Sawdon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Methods and materials for zonal isolation
- Patent number 8,122,959
- Issue date Feb 28, 2012
- Schlumberger Technology Corporation
- Christopher Alan Sawdon
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Wellbore fluid comprising a base fluid and a particulate bridging a...
- Patent number 8,006,761
- Issue date Aug 30, 2011
- BP Exploration Operating Company Limited
- Simon Neil Duncum
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Wellbore fluid comprising at least one polymer containing pendant a...
- Patent number 7,943,554
- Issue date May 17, 2011
- BP Exploration Operating Company Limited
- Simon Neil Duncum
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Reversible emulsions stabilized by amphiphilic polymers
- Patent number 7,928,039
- Issue date Apr 19, 2011
- M-I L.L.C.
- Nathalie Monfreux-Gaillard
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Wellbore fluid comprising sulfonated copolymers with pendant alkyl...
- Patent number 7,919,437
- Issue date Apr 5, 2011
- BP Exploration Operating Company Limited
- Simon Neil Duncum
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Wellbore fluid comprising a base fluid and a particulate bridging a...
- Patent number 7,854,277
- Issue date Dec 21, 2010
- BP Exploration Operating Company Limited
- Simon Neil Duncum
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Additive for increasing the density of a fluid for casing annulus p...
- Patent number 7,745,380
- Issue date Jun 29, 2010
- M-I L.L.C.
- Andrew J. Bradbury
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Composition of base fluid and polymeric dispersing agent-absorbed p...
- Patent number 7,727,939
- Issue date Jun 1, 2010
- M-I L.L.C.
- Andrew J Bradbury
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Additive for increasing the density of an oil-based fluid and fluid...
- Patent number 7,651,040
- Issue date Jan 26, 2010
- M-I L.L.C.
- Andrew J. Bradbury
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Additive for increasing the density of a fluid for casing annulus p...
- Patent number 7,589,049
- Issue date Sep 15, 2009
- M-I L.L.C.
- Andrew J. Bradbury
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Additive for increasing the density of an oil-based fluid and fluid...
- Patent number 7,538,074
- Issue date May 26, 2009
- M-I L.L.C.
- Andrew J. Bradbury
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Additive for increasing the density of a fluid for casing annulus p...
- Patent number 7,449,431
- Issue date Nov 11, 2008
- M-I L.L.C.
- Andrew J Bradbury
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Internal breaker
- Patent number 7,427,582
- Issue date Sep 23, 2008
- M-I L.L.C.
- David A. Ballard
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Additive for increasing the density of an oil-based fluid and fluid...
- Patent number 7,267,291
- Issue date Sep 11, 2007
- M-I L.L.C.
- Andrew J. Bradbury
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Reversible emulsions stabilized by amphiphilic polymers and applica...
- Patent number 7,262,152
- Issue date Aug 28, 2007
- M-I L.L.C.
- Nathalie Monfreux-Gaillard
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Internal breaker
- Patent number 6,861,394
- Issue date Mar 1, 2005
- M-I L.L.C.
- David A. Ballard
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Additive for wellbore fluids
- Patent number 6,803,347
- Issue date Oct 12, 2004
- Schlumberger Technology Corporation
- Hemant K. J. Ladva
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Electrically conductive non-aqueous wellbore fluids
- Patent number 6,787,505
- Issue date Sep 7, 2004
- M-I L.L.C.
- Geoffrey Maitland
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Electrically conductive non-aqueous wellbore fluids
- Patent number 6,770,603
- Issue date Aug 3, 2004
- M-I L.L.C.
- Christopher Sawdon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Additive for increasing the density of a fluid and fluid comprising...
- Patent number 6,586,372
- Issue date Jul 1, 2003
- M-I L.L.C.
- Andrew Bradbury
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Wellbore fluids
- Patent number 5,962,375
- Issue date Oct 5, 1999
- Dowell, a division of Schlumberger Technology Corporation
- Christopher Alan Sawdon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Invert biodegradable n-alkane(s) wellbore fluid containing less tha...
- Patent number 5,846,913
- Issue date Dec 8, 1998
- Dowell, a division of Schlumberger Technology Corporation
- Christopher Alan Sawdon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Wellbore fluid
- Patent number 5,627,143
- Issue date May 6, 1997
- Dowell Schlumberger Incorporated
- Christopher A. Sawdon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF CARRYING OUT A WELLBORE OPERATION
- Publication number 20140076635
- Publication date Mar 20, 2014
- BP Exploration Operating Company Limited
- Mark Shelton Aston
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHOD OF CARRYING OUT A WLLBORE OPERATION
- Publication number 20110146983
- Publication date Jun 23, 2011
- Christopher Alan Sawdon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Wellbore fluid comprising a base fluid and a particulate bridging a...
- Publication number 20110056683
- Publication date Mar 10, 2011
- Simon Neil Duncum
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
WELLBORE FLUID
- Publication number 20100248996
- Publication date Sep 30, 2010
- Christopher Alan Sawdon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHODS AND MATERIALS FOR ZONAL ISOLATION
- Publication number 20100065273
- Publication date Mar 18, 2010
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Christopher Alan Sawdon
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
WELLBORE FLUID
- Publication number 20090291861
- Publication date Nov 26, 2009
- Christopher Alan Sawdon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ADDITIVE FOR INCREASING THE DENSITY OF AN OIL-BASED FLUID AND FLUID...
- Publication number 20090275487
- Publication date Nov 5, 2009
- Andrew J. Bradbury
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Wellbore Fluid
- Publication number 20090247428
- Publication date Oct 1, 2009
- Simon Neil Duncum
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ADDITIVE FOR INCREASING THE DENSITY OF A FLUID FOR CASING ANNULUS P...
- Publication number 20090124521
- Publication date May 14, 2009
- M-I L.L.C.
- Andrew J. Bradbury
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Wellbore Fluid Comprising a Base Fluid and a Particulate Bridging A...
- Publication number 20090008095
- Publication date Jan 8, 2009
- BP Exploration Operating Company Limited
- Simon Neil Duncum
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Additive For Reducing Torque On A Drill String
- Publication number 20080167203
- Publication date Jul 10, 2008
- Andrew Bradbury
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Additive for increasing the density of an oil-based fluid and fluid...
- Publication number 20070287637
- Publication date Dec 13, 2007
- Andrew J. BRADBURY
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ADDITIVE FOR INCREASING THE DENSITY OF AN OIL-BASED FLUID AND FLUID...
- Publication number 20070184987
- Publication date Aug 9, 2007
- Andrew J. Brandbury
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ADDITIVE FOR INCREASING THE DENSITY OF A FLUID FOR CASING ANNULUS P...
- Publication number 20060188651
- Publication date Aug 24, 2006
- Andrew J. Bradbury
- E21 - EARTH DRILLING MINING
Information Patent Application
Additive for increasing the density of a fluid for casing annulus p...
- Publication number 20050101492
- Publication date May 12, 2005
- M-I L.L.C.
- Andrew J. Bradbury
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Additive for increasing the density of a fluid for casing annulus p...
- Publication number 20050101493
- Publication date May 12, 2005
- M-I L.L.C.
- Andrew J. Bradbury
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Additive for increasing the density of an oil-based fluid and fluid...
- Publication number 20040127366
- Publication date Jul 1, 2004
- M-I L.L.C.
- Andrew J. Bradbury
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Additive for increasing the density of a fluid for casing annulus p...
- Publication number 20030203822
- Publication date Oct 30, 2003
- Andrew J. Bradbury
- E21 - EARTH DRILLING MINING

Christopher A. Sawdon

Person

Patents Grantslast 30 patents

Wellbore fluid

Methods and materials for zonal isolation

Wellbore fluid comprising a base fluid and a particulate bridging a...

Wellbore fluid comprising at least one polymer containing pendant a...

Reversible emulsions stabilized by amphiphilic polymers

Wellbore fluid comprising sulfonated copolymers with pendant alkyl...

Wellbore fluid comprising a base fluid and a particulate bridging a...

Additive for increasing the density of a fluid for casing annulus p...

Composition of base fluid and polymeric dispersing agent-absorbed p...

Additive for increasing the density of an oil-based fluid and fluid...

Additive for increasing the density of a fluid for casing annulus p...

Additive for increasing the density of an oil-based fluid and fluid...

Additive for increasing the density of a fluid for casing annulus p...

Internal breaker

Additive for increasing the density of an oil-based fluid and fluid...

Reversible emulsions stabilized by amphiphilic polymers and applica...

Internal breaker

Additive for wellbore fluids

Electrically conductive non-aqueous wellbore fluids

Electrically conductive non-aqueous wellbore fluids

Additive for increasing the density of a fluid and fluid comprising...

Wellbore fluids

Invert biodegradable n-alkane(s) wellbore fluid containing less tha...

Wellbore fluid

Patents Applicationslast 30 patents

METHOD OF CARRYING OUT A WELLBORE OPERATION

METHOD OF CARRYING OUT A WLLBORE OPERATION

Wellbore fluid comprising a base fluid and a particulate bridging a...

WELLBORE FLUID

METHODS AND MATERIALS FOR ZONAL ISOLATION

WELLBORE FLUID

ADDITIVE FOR INCREASING THE DENSITY OF AN OIL-BASED FLUID AND FLUID...

Wellbore Fluid

ADDITIVE FOR INCREASING THE DENSITY OF A FLUID FOR CASING ANNULUS P...

Wellbore Fluid Comprising a Base Fluid and a Particulate Bridging A...

Additive For Reducing Torque On A Drill String

Additive for increasing the density of an oil-based fluid and fluid...

ADDITIVE FOR INCREASING THE DENSITY OF AN OIL-BASED FLUID AND FLUID...

ADDITIVE FOR INCREASING THE DENSITY OF A FLUID FOR CASING ANNULUS P...

Additive for increasing the density of a fluid for casing annulus p...

Additive for increasing the density of a fluid for casing annulus p...

Additive for increasing the density of an oil-based fluid and fluid...

Additive for increasing the density of a fluid for casing annulus p...