High strength connection for composite sleeve and composite mandrel and related methods
US11401775B2 · kind B2 · utility
0Cited by
7References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2020 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Dec 10, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A composite downhole tool, such as a frac plug or a bridge plug, having a composite sleeve located around a composite mandrel and defining an overlapping or overlapped section between the two. One or more shear pins with each shear pin having a pin hole is provided with the downhole tool to reinforce the downhole tool from interlaminate shear. The one or more shear pins can further be reinforced from rotation by overlapping at least part of the one or more pins with a lip of a ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.