Inventor
CLAPPER DENNIS K
US29 patents
⚠️ This page may combine multiple inventors who share the name “CLAPPER DENNIS K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAKER HUGHES INC
19 patentsUS7271131B2Sep 18, 2007
Fluid loss control and sealing agent for drilling depleted sand formations
BAKER HUGHES INC61 citations96
US6635604B1Oct 21, 2003
Low molecular weight water soluble organic compounds as crystallization point suppressants in brines
BAKER HUGHES INC59 citations96
US6790812B2Sep 14, 2004
Acid soluble, high fluid loss pill for lost circulation
BAKER HUGHES INC129 citations94
US6703351B2Mar 9, 2004
Water-based drilling fluids using latex additives
BAKER HUGHES INC78 citations93
US6204224B1Mar 20, 2001
Polyalkyl methacrylate copolymers for rheological modification and filtration control for ester and synthetic based drilling fluids
BAKER HUGHES INC90 citations93
US5141920AAug 25, 1992
Hydrocarbon invert emulsions for use in well drilling operations
BAKER HUGHES INC43 citations92
US5057234AOct 15, 1991
Non-hydrocarbon invert emulsions for use in well drilling operations
BAKER HUGHES INC49 citations92
US4963273AOct 16, 1990
Modified non-polluting liquid phase shale swelling inhibition drilling fluid and method of using same
BAKER HUGHES INC46 citations92
US4941981AJul 17, 1990
Modified non-polluting liquid phase shale swelling inhibition drilling fluid
BAKER HUGHES INC52 citations92
US4830765AMay 16, 1989
Modified non-polluting liquid phase shale swelling inhibition drilling fluid and method of using same
BAKER HUGHES INC51 citations92
US6165945ADec 26, 2000
Blends of glycol derivatives as gas hydrate inhibitors in water base drilling, drill-in, and completion fluids
BAKER HUGHES INC27 citations91
US5919738AJul 6, 1999
Fluids for use in drilling and completion operations comprising water insoluble colloidal complexes for improved rheology and filtration control
BAKER HUGHES INC26 citations91
US6194216B1Feb 27, 2001
Method for determination of amine-based additives in drilling fluid filtrates
BAKER HUGHES INC17 citations80
US7393813B2Jul 1, 2008
Water-based drilling fluids using latex additives
BAKER HUGHES INC8 citations72
US10221636B2Mar 5, 2019
Polymer-modified asphalt for drilling fluid applications
BAKER HUGHES INC2 citations66
US7749943B2Jul 6, 2010
Method and drilling fluid systems and lost circulation pills adapted to maintain the particle size distribution of component latex particles before and after freezing of the latex particles in the presence of water
BAKER HUGHES INC2 citations62
US8053394B2Nov 8, 2011
Drilling fluids with redispersible polymer powders
BAKER HUGHES INC3 citations57
US10400152B2Sep 3, 2019
Liquid loaded powders made from hybrid calcium carbonate for oil and gas drilling fluids
BAKER HUGHES INC0 citations52
US10280356B2May 7, 2019
Electrically conductive oil-based fluids
BAKER HUGHES INC0 citations45
MILCHEM INC
4 patentsUS4575428AMar 11, 1986
Invert emulsion drilling fluid comprising oligamide composition
MILCHEM INC47 citations92
US4663076AMay 5, 1987
Invert emulsion drilling fluid comprising oligamide composition
MILCHEM INC24 citations81
US4735732AApr 5, 1988
Filtration control additive for invert emulsion drilling fluids and method of preparation
MILCHEM INC14 citations73
US4728444AMar 1, 1988
Filtration control additive for invert emulsion drilling fluids and method of preparation
MILCHEM INC12 citations73