| 发明名称 |
MULTI-GRADIENT DRILLING METHOD AND SYSTEM |
| 摘要 |
A multi-gradient system for drilling a well bore from a surface location int o a seabed includes an injector for injecting buoyant substantially incompressible articles into a column of drilling fluid associated with the well bore. Preferably, the substantially incompressible articles comprises hollow substantially spherical bodies.
|
| 申请公布号 |
CA2412417(A1) |
申请公布日期 |
2001.12.13 |
| 申请号 |
CA20012412417 |
申请日期 |
2001.06.08 |
| 申请人 |
MAURER TECHNOLOGY INCORPORATED |
发明人 |
MAURER, WILLIAM C.;MCDONALD, WILLIAM J.;MEDLEY, GEORGE H., JR. |
| 分类号 |
E21B21/00;E21B21/08;(IPC1-7):E21B21/08 |
主分类号 |
E21B21/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
