公开(公告)号：US12043787B2

公开(公告)日：2024-07-23

申请号：US17649998

申请日：2022-02-04

Applicant: ARAMCO SERVICES COMPANY

Inventor： Sivaprakash Shanmugam ,  Ashok Santra ,  Carl J. Thaemlitz

IPC: C09K8/035

CPC classification number: C09K8/035

Abstract: 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.

公开(公告)号：US20230220265A1

公开(公告)日：2023-07-13

申请号：US17647428

申请日：2022-01-07

Applicant: ARAMCO SERVICES COMPANY

Inventor： Ashok Santra ,  Carl J. Thaemlitz

IPC: C09K8/34 ,  C08F292/00

CPC classification number: C09K8/34 ,  C08F292/00 ,  C09K2208/34

Abstract: 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.

公开(公告)号：US20200071591A1

公开(公告)日：2020-03-05

申请号：US16558772

申请日：2019-09-03

Applicant: Aramco Services Company

Inventor： Hasmukh A. Patel ,  Carl J. Thaemlitz

IPC: C09K8/22 ,  C09K8/06 ,  C07F7/08

Abstract: Embodiments of the present disclosure are directed to embodiments of synthetic functionalized additives. The synthetic functionalized additive may include a layered magnesium silicate. The layered magnesium silicate may include a first functionalized silicate layer including a first tetrahedral silicate layer covalently bonded to at least two different functional groups, an octahedral brucite layer, including magnesium, and a second functionalized silicate layer including a second tetrahedral silicate layer covalently bonded to at least two different functional groups. The octahedral brucite layer may be positioned between the first functionalized silicate layer and the second functionalized silicate layer. The at least two different functional groups covalently bonded to the first tetrahedral silicate layer may be the same or different than the at least two different functional groups covalently bonded to the second tetrahedral silicate layer.

公开(公告)号：US12065608B2

公开(公告)日：2024-08-20

申请号：US17647428

申请日：2022-01-07

Applicant: ARAMCO SERVICES COMPANY

Inventor： Ashok Santra ,  Carl J. Thaemlitz

IPC: C09K8/34 ,  C08F292/00

CPC classification number: C09K8/34 ,  C08F292/00 ,  C09K2208/34

Abstract: 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.