Saudi Arabian Oil Company

Halliburton Energy Services, Inc.

William Marsh Rice University

Aramco Services Company

Carl Joseph Thaemlitz

Peter James Boul

Ashok K Santra

Hasmukh A Patel

Sivaprakash Shanmugam

B Raghava Reddy

Pulickel Madhavapanicker Ajayan

Muhammad M Rahman

Seyed Mohammad Sajadi

Matt Hilfiger

Ashok Kumar Meiyazhagan

Cindy Ching Fang

Natalia Collins

Robert S Taylor

Eric Davidson

Kenneth W Oyler

Ryan M Foster

Jiten Chatterji

Craig Wayne Roddy

D Chad Brenneis

Cato Russell McDaniel

Elizabeth Q Contreras

Matthew Gary Hilfiger

Ronald Earl Sweatman

Stephen W Almond

Ricky Layne Covington

Simone Musso

Kingsley Ihueze Nzeadibe

Diana Rasner

AshokKumar Meiyazhagan

Ashok Kumar

Cato Russell Mcdaniel

Daniel Lee Bour

Gregory Perez

A composition that includes a polymer-grafted graphene particle and aqueous-based drilling fluid is provided. At least one side of the graphene particle comprises a grafted polymer. A method of using an aqueous-based drilling fluid is also provided. The method includes introducing the aqueous-based drilling fluid into a wellbore and circulating the aqueous-based drilling fluid during drilling operations. The drilling fluid includes a polymer-grafted graphene particle and aqueous-based drilling fluid. At least one side of the graphene particle comprises a grafted polymer. The aqueous-based drilling fluid includes a range of from about 0.01 ppb to 10 ppb of the polymer-grafted graphene particle.

Synthesis and use of grafted graphene in aqueous drilling fluids as low shear rate viscosity enhancer

Provided are systems and method for casing a wellbore of a hydrocarbon well. The casing including disposing a casing print head in a wellbore of a hydrocarbon well, and conducting a downhole casing operation including operating the casing print head to eject casing material to form a casing tubular in the wellbore, and operating the casing print head to eject casing liner material into an annular region located between the casing tubular and a wall of the wellbore to form a casing liner in the annular region, the casing tubular and the casing liner forming a casing of the wellbore.

Additive manufacture of wellbore tubulars

A drilling fluid composition comprising a base fluid, and a shale inhibitor including an ultra-high molecular weight branched block copolymer having the following structure, where monomer A is an anionic monomer, monomer B is a hydrophilic monomer, monomer C is an anionic monomer, monomer D is a crosslinker-divinyl monomer, and —SSCZ ground being a terminal RAFT agent.

Development of ultra-high molecular weight (UHMW) branched block copolymer shale inhibitor for water based drilling fluid

A cement slurry may include an aqueous phase; a cement precursor material; and a hydrophilic branched star polymer. The hydrophilic branched star polymer is a crosslinked, polymerized reaction product of crosslinker C and hydrophilic monomer A and hydrophilic/hydrophobic monomer B and optionally hydrophilic/hydrophobic monomer D. The crosslinked polymerized reaction product includes a plurality of block copolymer segments of hydrophilic monomer A and hydrophilic/hydrophobic monomer B interconnected via crosslinker C; a plurality of block copolymer segments of hydrophilic monomer A, hydrophilic monomer B, and hydrophilic/hydrophobic monomer D interconnected via crosslinker C; or combinations thereof.

Cement slurries, cured cement and methods of making and use thereof

A drilling fluid composition comprising a base fluid, and a drag reducing agent including an ultra-high molecular weight branched block copolymer having the following structure, where monomer A is an anionic monomer, monomer B is a hydrophilic monomer, monomer C is an anionic monomer, monomer D is a crosslinker-divinyl monomer, and —SSCZ ground being a terminal RAFT agent.

Development of ultra-high molecular weight (UHMW) branched block copolymer drag reducer with improved mechanical and chemical stability

A process for making a layered multi-material structural element having controlled mechanical failure characteristics. The process includes the steps of: supplying a cementitious layer and forming a polymer layer on the cementitious layer by additive manufacture such that the polymer layer has a first thickness and the cementitious layer has a second thickness, wherein the polymer layer comprises a polymer and the cementitious layer comprises a cementitious material; and allowing the polymer from the polymer layer to suffuse into the cementitious layer for a period of time to obtain a suffused zone in the cementitious layer such that the suffused zone has a third thickness that is less than half the second thickness.

Additive manufacture-assisted method for making structural elements having controlled failure characteristics

A drilling fluid includes an aqueous phase, a clay-based component, and an amphiphilic branched star polymer. The amphiphilic branched star polymer is a crosslinked, polymerized reaction product of crosslinker C, hydrophobic monomer B, and hydrophilic monomer A. The crosslinked polymerized reaction product includes a plurality of block copolymer segments of hydrophobic monomer B and hydrophilic monomer A interconnected via crosslinker C.

Drilling fluids and methods of making and use thereof

A composition that includes a polymer-grafted graphene particle and oil-based drilling fluid is provided. At least one side of the graphene particle comprises a grafted polymer. A method of using an oil-based drilling fluid is also provided. The method includes introducing the oil-based drilling fluid into a wellbore and circulating the oil-based drilling fluid during drilling operations. The drilling fluid includes a polymer-grafted graphene particle and oil-based drilling fluid. At least one side of the graphene particle comprises a grafted polymer. The oil-based drilling fluid includes a range of from about 0.01 ppb to 10 ppb of the polymer-grafted graphene particle.

Synthesis and use of grafted graphene in oil based drilling fluids as low shear rate viscosity enhancer

A method of producing a nanosilica-containing cement formulation, the method comprising the steps of mixing an amount of a determinant nanosilica particle and a functional coating; applying a dynamic initiator to trigger a reversible reaction of the functional coating to produce a reversible cage, where the reversible cage surrounds the determinant nanosilica particle to produce an encapsulated nanosilica; and mixing the encapsulated nanosilica and a cement formulation to produce the nanosilica-containing cement formulation.

Encapsulation of silica nanoparticle for release

A drilling fluid composition comprising a base fluid, and a viscosifier including an ultra-high molecular weight branched block copolymer having the following structure, where monomer A is an anionic monomer, monomer B is a hydrophilic monomer, monomer C is an anionic monomer, monomer D is a crosslinker-divinyl monomer, and —SSCZ ground being a terminal RAFT agent.

Ultra-high molecular weight (UHMW) branched block copolymer viscosifier for water based drilling fluids

A drilling fluid comprises an aqueous solution; a clay-based component comprising layered silicate; and a viscosifier additive comprising poly(acrylamide-co-diallyldimethylammonium chloride) (poly(AAm-co-DMAC)) polymer. The polymer comprises a number average molecular weight of from 10,000 g/mol to 2,000,000 g/mol. The layered silicate and poly(AAm-co-DMAC) reacts to form a silicate-poly(AAm-co-DMAC) complex within the aqueous solution. A mass ratio of the poly(AAm-co-DMAC) to the layered silicate is 1 to 8.

Simultaneous association-dissociation of layered silicates on polymers to improve rheology of drilling fluids

Growing community of inventors

Cypress, TX, United States of America

Carl Joseph Thaemlitz