公开(公告)号：WO2020046967A1

公开(公告)日：2020-03-05

申请号：PCT/US2019/048380

申请日：2019-08-27

Applicant: KAO CORPORATION ,  CHEMEOR, INC.

Inventor： MENG, Fei ,  UNO, Mitsuru ,  TANG, Yongchun

IPC: C23F11/00 ,  C23F11/10 ,  C23F11/14 ,  C23F11/16 ,  C09K8/52 ,  C09K8/54 ,  C09K15/26

Abstract: A method of inhibiting corrosion of metal in contact with a corrosive mixture in an oil or gas field environment involving introducing a corrosion inhibitor composition into the corrosive mixture, the corrosion inhibitor composition including a nitrogen-containing compound having an alkyl amine group or an alkyl quaternary ammonium salt group, and at least one sulfur-containing compound selected from the group consisting of mercaptobenzothiazole, mercaptobenzoimidazole, a thioglycol compound, and a thiourea compound.

公开(公告)号：WO2020046670A1

公开(公告)日：2020-03-05

申请号：PCT/US2019/047459

申请日：2019-08-21

Applicant: KAO CORPORATION ,  CHEMEOR, INC.

Inventor： MENG, Fei ,  UNO, Mitsuru ,  TANG, Yongchun ,  GONZALEZ RAMENO, Lucino

IPC: C09K8/54 ,  C23F11/04 ,  C23F11/14

Abstract: A corrosion inhibitor composition, containing (a) a cinnamaldehyde compound, (b) an alkoxylated fatty amine, and (c) an imidazoline compound, and optionally (d) a surfactant, and (e) a solvent. A method of inhibiting corrosion of metal in contact with an acidic medium in an oil or gas field environment by introducing the corrosion inhibitor composition into the acidic medium, such as during acid stimulation operations.