公开(公告)号：US20210317359A1

公开(公告)日：2021-10-14

申请号：US17271396

申请日：2019-08-21

申请人： Kao Corporation ,  CHEMEOR, INC.

发明人： Fei MENG ,  Mitsuru UNO ,  Yongchun TANG ,  Lucino GONZÁLEZ RAMEÑO

IPC分类号： C09K8/54 ,  C09K8/60 ,  C09K8/74 ,  C23F11/04 ,  C23F11/12 ,  C23F11/14

摘要： 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.

公开(公告)号：US20210253938A1

公开(公告)日：2021-08-19

申请号：US17271116

申请日：2019-08-27

申请人： KAO CORPORATION ,  CHEMEOR, INC.

发明人： Fei MENG ,  Mitsuru UNO ,  Yongchun TANG

IPC分类号： C09K8/54 ,  C09K15/18 ,  C09K15/26 ,  C23F11/14 ,  C23F11/16

摘要： 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.