Method for pulling a crown plug
US10626693B2 · kind B2 · utility
0Cited by
3References
17Claims
0Family size
Inventors
Key dates
| Filing date | Jul 30, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Jul 30, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for pulling a crown plug that includes the steps of providing a subsea lubricator having a longitudinal through bore; providing a jacking string with a landing sub and a crown plug connector; lowering the subsea lubricator to a christmas tree and lowering the jacking string to the lubricator, and, connecting the plug connector to the crown plug; jacking up the jack such that tensile forces cause the crown plug to be released from the christmas tree; raising the jacking string and crown plug and detaching the crown plug from the crown plug connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.