Method, device and system of vibration reduction control on installation of deepwater drilling riser
US11591865B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2022 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Jul 22, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/002
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present application provides a method, a device, and a system of vibration reduction control on the installation of a deepwater drilling riser. The method includes: determining a lateral vibration displacement of each position of the riser at different times in an installation process according to a mechanical model of the deepwater drilling riser in the installation process, determining a stress generated by a lateral vibration of the riser in the installation process, determining a vibration reduction control speed applied to a bottom of the riser in the installation process according to the stress and the lateral vibration displacement of each position of the riser at different times in the installation process, and performing a vibration reduction control on the bottom of the riser based on the vibration reduction control speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.