Self-contained well intervention system and method
US10920521B2 · kind B2 · utility
2Cited by
13References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Jul 12, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for performing a well intervention operation includes the steps of: (a) sealingly coupling a lubricator onto an open top end of a well tree, the lubricator having a hollow interior in which a rotatable winch is contained, the winch having a cable wound thereabout; (b) attaching a tool to the cable; (c) lowering the tool within a well bore to which the well tree is attached; and (d) operating the winch from a location exterior to the lubricator to cause rotation of the winch and winding of the cable, whereby the tool is retrieved from the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.