Downhole tool with increased friction surface and method of manufacture
US5242019A · kind A · utility
9Cited by
12References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | May 18, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1208
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An inflatable packer is shown which includes a tubular mandrel and an inflatable, elastomeric sleeve secured to the mandrel at opposing ends thereof. A friction enhancing media is applied to the exterior surface of the mandrel by wrapping a grit laden tape about the mandrel exterior surface. The particulate material contained within the outer surface of the tape increases the coefficient of friction between the mandrel and the sleeve to retain the sleeve in its original position while the device is being run into position within the well bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.