Casing hanger and annulus sealing device running tool for deepwater drilling, and method for using the same
US11203910B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2020 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Aug 18, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A casing hanger and annulus sealing device running tool for deepwater drilling and a method for using the same. The running tool includes a spindle connected to a hollow suspension structure via a torque transmission structure, one end of the spindle slidably passes through a hollow piston, the suspension structure rotates with the spindle and slide along the piston, the inner cavity of the torque transmission structure communicates with that of the suspension structure to form a piston cavity; the piston cavity and the piston form a hydraulic piston structure; and one end of the suspension structure away from the torque transmission structure can rotatably hook to and lift upward to release the annulus sealing device, and one end of the piston away from the torque transmission structure can radially expand to hook to the casing hanger and can radially contract to release the casing hanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.