公开(公告)号：US20230332036A1

公开(公告)日：2023-10-19

申请号：US17723835

申请日：2022-04-19

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Jian Hou ,  Ming Han ,  Tao Chen ,  Mohammed A. Bataweel ,  Xuan Zhang

IPC: C09K8/528 ,  C09K8/84 ,  C09K8/584

CPC classification number: C09K8/528 ,  C09K8/584 ,  C09K8/84

Abstract: A scale inhibitor fluid includes 0.001 ppm to 100 ppm of a phosphonate compound, 20 ppm to 400 ppm of a cation-containing surfactant, and an aqueous fluid. The cation-containing surfactant includes at least one of a single positively charged cation-containing surfactant, a double positively charged cation-containing surfactant and a zwitterionic cation-containing surfactant. A method for inhibiting scale formation in a wellbore includes introducing a phosphonate compound, a cation-containing surfactant and an aqueous fluid to the wellbore to produce a scale inhibitor fluid.

公开(公告)号：US20240409804A1

公开(公告)日：2024-12-12

申请号：US18809629

申请日：2024-08-20

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Jian Hou ,  Ming Han ,  Tao Chen ,  Mohammed A. Bataweel ,  Xuan Zhang

IPC: C09K8/528 ,  C09K8/584 ,  C09K8/84

Abstract: A scale inhibitor fluid includes 0.001 ppm to 100 ppm of a phosphonate compound, 20 ppm to 400 ppm of a cation-containing surfactant, and an aqueous fluid. The cation-containing surfactant includes at least one of a single positively charged cation-containing surfactant, a double positively charged cation-containing surfactant and a zwitterionic cation-containing surfactant. A method for inhibiting scale formation in a wellbore includes introducing a phosphonate compound, a cation-containing surfactant and an aqueous fluid to the wellbore to produce a scale inhibitor fluid.

公开(公告)号：US11820842B2

公开(公告)日：2023-11-21

申请号：US17015799

申请日：2020-09-09

Applicant: Saudi Arabian Oil Company

Inventor： Xuan Zhang ,  Ming Han ,  Jian Hou ,  Jinxun Wang

IPC: C08F212/14 ,  C08F2/01 ,  C08F2/04 ,  C08F2/38 ,  C08F2/44 ,  C08F220/58 ,  C08F226/02 ,  C08K3/30 ,  C08K5/23 ,  C09K8/035

CPC classification number: C08F212/30 ,  C08F2/01 ,  C08F2/04 ,  C08F2/38 ,  C08F2/44 ,  C08F220/585 ,  C08F226/02 ,  C08K3/30 ,  C08K5/23 ,  C08F2800/10 ,  C08K2003/3045

Abstract: Copolymer compositions and methods of making copolymer compositions with enhanced stability in high temperature and high salinity environments. The copolymers include hydrophobic monomers and sulfonated monomers. The sulfonated monomers can include 2-acrylamido-2-methylpropane sulfonic acid and allyl sulfonate. The sulfonated monomers increase the stability of the polymers in harsh conditions, and in high temperature, high salinity environments. The sulfonated monomers also reduce or prevent the hydrolysis of acrylamide groups, and therefore enhance the stability of the copolymer. The copolymer compositions can be made with free radical polymerization and an initiation complex.

公开(公告)号：US20220073662A1

公开(公告)日：2022-03-10

申请号：US17015799

申请日：2020-09-09

Applicant: Saudi Arabian Oil Company

Inventor： Xuan Zhang ,  Ming Han ,  Jian Hou ,  Jinxun Wang

IPC: C08F212/14 ,  C08F220/58 ,  C08F2/38 ,  C08K3/30 ,  C08K5/23 ,  C08F226/02 ,  C08F2/01 ,  C08F2/04 ,  C08F2/44

Abstract: Copolymer compositions and methods of making copolymer compositions with enhanced stability in high temperature and high salinity environments. The copolymers include hydrophobic monomers and sulfonated monomers. The sulfonated monomers can include 2-acrylamido-2-methylpropane sulfonic acid and allyl sulfonate. The sulfonated monomers increase the stability of the polymers in harsh conditions, and in high temperature, high salinity environments. The sulfonated monomers also reduce or prevent the hydrolysis of acrylamide groups, and therefore enhance the stability of the copolymer. The copolymer compositions can be made with free radical polymerization and an initiation complex.