公开(公告)号：US20230374370A1

公开(公告)日：2023-11-23

申请号：US18364526

申请日：2023-08-03

申请人： Cameron International Corporation

发明人： Paul Barnes ,  Tore Nordvik ,  Trevor Lloyd Hughes ,  Lynne Patricia Crawford ,  Evgeny Barmatov

IPC分类号： C09K8/54 ,  C07D239/04 ,  C23F11/14 ,  E21B41/02

CPC分类号： C09K8/54 ,  C07D239/04 ,  C23F11/149 ,  E21B41/02 ,  C09K2208/32

摘要： Compositions may include a corrosion inhibitor including a heterocyclic diamine prepared from the reaction of an alkyl diamine and an aldehyde, wherein the alkyl diamine has the general formula: R4NH(CH2)nNHR5, where n is an integer between 3 and 6, and R4 and R5 are independently hydrogen or a C2-C30 saturated or unsaturated hydrocarbon radical. Methods may include contacting a metal surface with a corrosion inhibitor composition, wherein the corrosion inhibitor includes a heterocyclic diamine corrosion inhibitor from the reaction of an alkyl diamine and an aldehyde, wherein the alkyl diamine has the general formula: R4NH(CH2)nNHR5, where n is an integer between 3 and 6, and R4 and R5 are independently hydrogen or a C2-C30 saturated or unsaturated hydrocarbon radical.