发明名称 |
Seal system for wellhead isolation tool diffuser |
摘要 |
A seal system for a wellhead isolation tool diffuser utilizing elastomeric cup-shaped seals installed on the exterior of the diffuser, which is inserted into the production tubing at the wellhead. After insertion of the diffuser, the production tubing is pressurized, and the seals are set against the interior of the production tubing by the pressure in the well, effecting a tight seal.
|
申请公布号 |
US4315543(A) |
申请公布日期 |
1982.02.16 |
申请号 |
US19790065654 |
申请日期 |
1979.08.10 |
申请人 |
HALLIBURTON COMPANY |
发明人 |
LUERS, THOMAS J.;GIROUX, RICHARD L. |
分类号 |
E21B33/068;E21B33/126;(IPC1-7):E21B33/12 |
主分类号 |
E21B33/068 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|