Method of abandoning a well
US10989017B2 · kind B2 · utility
1Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | May 20, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention provides a method of determining the condition of a cement bond of a casing in a wellbore. The method comprises perforating a tubing in the wellbore at a zone of interest and displacing a settable composition through the perforations into the annulus between the casing and tubing to secure the tubing. The method also comprises cutting the tubing and assessing the status of the cement bond of the casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.