Methods to estimate downhole drilling vibration amplitude from surface measurement
US8977523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2010 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Sep 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B15/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Method to estimate severity of downhole vibration for a drill tool assembly, including: identifying a dataset comprising selected drill tool assembly parameters; selecting a reference level of downhole vibration amplitude for the drill tool assembly; identifying a surface drilling parameter and calculating a reference surface vibration attribute for the selected reference level of downhole vibration amplitude; determining a surface parameter vibration attribute derived from at least one surface measurement or observation obtained in a drilling operation, the determined surface parameter vibration attribute corresponding to the identified surface drilling parameter; and estimating a downhole vibration severity indicator by evaluating the determined surface parameter vibration attribute with respect to the identified reference surface vibration attribute.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.