| 发明名称 |
Environmentally friendly stimulation fluids, processes to create wormholes in carbonate reservoirs, and processes to remove wellbore damage in carbonate reservoirs |
| 摘要 |
The present invention includes processes to create wormholes in carbonate reservoirs by contacting a formation with a solution comprising glutamic acid N,N-diacetic acid (GLDA) and/or a salt thereof, methylglycine-N,N-diacetic acid (MGDA) and/or a salt thereof, or a combination thereof. The present invention also includes processes to remove wellbore damage in a carbonate reservoir by contacting a damaged zone of the carbonate reservoir with a solution comprising GLDA and/or a salt thereof, methylglycine-N,N-diacetic acid (MGDA) and/or a salt thereof, or a combination thereof. The present invention further includes solutions comprising a salt and further comprising GLDA and/or a salt thereof, methylglycine-N,N-diacetic acid (MGDA) and/or a salt thereof, or a combination thereof. |
| 申请公布号 |
US9150780(B2) |
申请公布日期 |
2015.10.06 |
| 申请号 |
US201113326561 |
申请日期 |
2011.12.15 |
| 申请人 |
AKZO NOBEL CHEMICALS INTERNATIONAL B.V. |
发明人 |
de Wolf Cornelia Adriana;Nasr-El-Din Hisham;LePage James N.;Nasr-El-Din Mahmoud Mohamed Ahmed;Bemelaar Johanna Hendrika |
| 分类号 |
C09K8/528;C09K8/60;C09K8/74 |
主分类号 |
C09K8/528 |
| 代理机构 |
|
代理人 |
Weiss Sandra B. |
| 主权项 |
1. Process to create wormholes in a carbonate reservoir by contacting a formation with a solution comprising a wormhole-forming agent, said wormhole forming agent consisting of a chelating agent selected from the group consisting of glutamic acid N,N-diacetic acid (GLDA) and/or a salt thereof, methylglycine-N,N-diacetic acid (MGDA) and/or a salt thereof, or a combination thereof. |
| 地址 |
Amersfoort NL |
