Downhole assembly to mitigate high frequency torsional oscillation, and oscillation mitigation tool suitable for use in a downhole assembly
US11993985B2 · kind B2 · utility
0Cited by
6References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 10, 2022 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Mar 10, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole assembly to mitigate high frequency torsional oscillation, in particular the high frequency torsional oscillation which can occur in a drilling operation for geothermal energy or for oil and gas. The downhole assembly has a rotary steerable tool and a high frequency torsional oscillation mitigation tool, the high frequency torsional oscillation mitigation tool having a one-way coupling, the high frequency torsional oscillation mitigation tool being located above the rotary steerable tool. Also relates to an oscillation mitigation tool suitable for use in a downhole assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.