| 发明名称 |
APPARATUS AND METHODS OF RUNNING CASING IN A DUAL GRADIENT SYSTEM |
| 摘要 |
A method of running casing in a dual gradient system includes lowering a casing into a low density fluid region and allowing the low density fluid to enter the casing; releasing a plug into the casing; supplying a high density fluid behind the plug; and lowering the casing into a high density fluid region until target depth is reached. |
| 申请公布号 |
US2014224487(A1) |
申请公布日期 |
2014.08.14 |
| 申请号 |
US201414179278 |
申请日期 |
2014.02.12 |
| 申请人 |
Weatherford/Lamb, Inc. |
发明人 |
BUDDE Marcel;LIRETTE Brent J.;LOGIUDICE Michael |
| 分类号 |
E21B33/12;E21B23/00;E21B33/13 |
主分类号 |
E21B33/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of running casing in a dual gradient system, comprising:
lowering a casing into a low density fluid region and allowing the low density fluid to enter the casing; releasing a plug into the casing; supplying a high density fluid behind the plug; and lowering the casing into a high density fluid region until target depth is reached. |
| 地址 |
Houston TX US |
