Inventor

WHITFILL DONALD L

US38 patents

⚠️ This page may combine multiple inventors who share the name “WHITFILL DONALD L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WHITFILL DONALD L

HALLIBURTON ENERGY SERV INC

Oilwell sealant compositions comprising alkali swellable latex

Methods and compositions for controlling lost circulation in subterranean operations

Oilwell sealant compositions comprising alkali swellable latex

Methods of drilling wellbores using variable density fluids comprising coated elastic particles

Methods of forming a chemical casing

Methods of consolidating formations and forming a chemical casing

Methods of consolidating formations or forming chemical casing or both while drilling

Lost circulation composition for fracture sealing

Lost circulation compositions

System and method for removing particles from a well bore penetrating a possible producing formation

System and method for developing and recycling drilling fluids

Lost circulation material formulation and method of use

Self-dissolving lost circulation treatment for producing formations

Oil or gas treatment fluid containing a chelate or coordination complex that sets

Oil or gas treatment fluid containing a chelate or coordination complex that sets

Variable density fluids and methods of use in subterranean formations

Method for drilling depleted sands with minimal drilling fluid loss

CONOCO INC

Placement process for oil field chemicals

Method for inhibiting the initiation and propagation of formation fractures while drilling and casing a well

Method for producing heavy, viscous crude oil

Method of controlling lost circulation in well drilling

Method for inhibiting the initiation and propagation of formation fractures while drilling

Reducing the permeability of a rock formation

Method for restricting gas influx during well cementing

Determination of chromate ion in drilling mud filtrates

HALLIBURTON ENERGY SERVICES INC

Lost-circulation materials of two different types of fibers

Multi-modal particle size distribution lost circulation material

Application of metal oxide-based cements in wellbores

Resilient carbon-based materials as lost circulation materials and related methods

Engineered methods and materials for wellbore strengthening in subterranean operations

CONTINENTAL OIL CO

Water base drilling mud composition

Method of treating oil-bearing formations using molten sulfur insulating packer fluid

BAROID TECHNOLOGY INC

Drilling and cementing through shallow waterflows

HALLIBURTN ENERGY SERVICES INC

Methods of consolidating formations

KUMAR ARUNESH

Engineered methods and materials for wellbore strengthening in subterranean operations

ALLIN MELISSA G

Methods of using lost circulation compositions

DEEN LARRY R

Self-degrading cement compositions and associated fluid loss applications

RAVI KRISHNA M

Drilling fluid that when mixed with a cement composition enhances physical properties of the cement composition