Inflatable packer compatible with CBL
US4606406A · kind A · utility
3Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1985 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Jan 28, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/127
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An inflatable packer with a supporting mandrel having intermittent coatings of grit-like materials bonded to the mandrel to provide a frictional contact surface for an inflatable rubber sleeve with intermittent bare portions thereby to permit use of a cement bond logging tool, the spacings of the coatings being functionally related to the transmitter/receiver spacing of a cement bond logging tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.