Downhole tool with bottom composite slip
US11078739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2018 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Jan 25, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool having a mandrel, and a bottom slip disposed around the mandrel. The bottom slip includes a circular body having a one-piece configuration characterized by a plurality of slip segments by at least partial material connectivity therearound. The bottom slip is made of a filament wound composite material, which means the bottom slip has a plurality of layers joined by respective interface layers. An outer slip surface of at least one of the plurality of slip segments is defined in cross-section by a plane P that intersects a longitudinal axis of the downhole tool at an angle a1 in a range of 10 degrees to 20 degrees when the bottom slip is in an unset position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.