发明名称 |
TREATMENT FLUIDS CONTAINING A HYDROPHOBICALLY MODIFIED CHELATING AGENT AND METHODS FOR USE THEREOF |
摘要 |
Chelating agents are often used in conjunction with stimulation operations in a subterranean formation to address the presence of certain metal ions therein. Hydrophobically modified chelating agents can be used to form metal-ligand complexes in a subterranean formation that can sometimes exhibit significantly different behavior than do their more water-soluble variants. Methods for treating a subterranean formation can comprise: providing a treatment fluid comprising a hydrophobically modified aminopolycarboxylic acid chelating agent, the chelating agent comprising an N-substitution having no carboxylic acid groups and about 6 carbon atoms or more; introducing the treatment fluid into a subterranean formation; and complexing metal ions in the subterranean formation with the chelating agent to form a metal-ligand complex. |
申请公布号 |
US2016244660(A1) |
申请公布日期 |
2016.08.25 |
申请号 |
US201314379045 |
申请日期 |
2013.10.08 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Beuterbaugh Aaron Michael;Reyes Enrique Antonio;Smith Alyssa Lynn |
分类号 |
C09K8/74;E21B43/26;E21B43/25 |
主分类号 |
C09K8/74 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method comprising:
providing a treatment fluid comprising a hydrophobically modified aminopolycarboxylic acid chelating agent, the chelating agent comprising an N-substitution having no carboxylic acid groups and about 6 carbon atoms or more; introducing the treatment fluid into a subterranean formation; and complexing metal ions in the subterranean formation with the chelating agent to form a metal-ligand complex. |
地址 |
Houston TX US |