| 发明名称 |
Method of effecting expanding chemical anchor/seals for rock cavities |
| 摘要 |
Method of sealing a cavity formed in a rock against the passage of fluids without fracturing the rock, by placing wadding in the cavity and adding a supply of expanding chemical grout to effect a seal upon hardening.
|
| 申请公布号 |
US4966237(A) |
申请公布日期 |
1990.10.30 |
| 申请号 |
US19890383111 |
申请日期 |
1989.07.20 |
| 申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE INTERIOR |
发明人 |
SWANSON, DAVID E.;SCHLUMPBERGER, MICHAEL X. |
| 分类号 |
C09K8/50;E21B33/134;E21B33/14 |
主分类号 |
C09K8/50 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
