发明名称 |
Treatment fluids containing a perfluorinated chelating agent and methods for use thereof |
摘要 |
Chelating agents used in conjunction with stimulation operations in a subterranean formation can often be limited by the pH range over which they may effectively complex metal ions. Perfluorinated chelating agents may have a broader effective pH range for metal ion complexation than do other types of chelating agents, particularly at highly acidic pH values. Methods for treating a subterranean formation can comprise: providing a treatment fluid comprising a perfluorinated chelating agent having at least two carboxylic acid groups; introducing the treatment fluid into a subterranean formation; and complexing metal ions in the subterranean formation with the perfluorinated chelating agent. |
申请公布号 |
US9447314(B2) |
申请公布日期 |
2016.09.20 |
申请号 |
US201314379182 |
申请日期 |
2013.10.08 |
申请人 |
Halliburton Energy Services, Inc. |
发明人 |
Reyes Enrique Antonio;Beuterbaugh Aaron Michael;Smith Alyssa Lynn |
分类号 |
E21B43/25;C09K8/74;E21B43/26 |
主分类号 |
E21B43/25 |
代理机构 |
McDermott Will & Emery LLP |
代理人 |
McDermott Will & Emery LLP ;Roddy Craig |
主权项 |
1. A method comprising:
providing a treatment fluid comprising a perfluorinated chelating agent having at least two carboxylic acid groups; introducing the treatment fluid into a subterranean formation; and complexing metal ions in the subterranean formation with the perfluorinated chelating agent. |
地址 |
Houston TX US |