Drilling energy calculation based on transient dynamics simulation and its application to drilling optimization
US11073009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2016 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Oct 16, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/024
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for drilling a well includes applying energy input to a drill string (31) by at least one of rotating the drill string (31) from surface and operating a drilling motor (41) disposed in the drill string (31) to operate a drill bit (2) at a bottom of the drill string (31); an amount of the applied energy not consumed in drilling formations caused by at least one of motion, deformation, and interaction of the drill string (31) is calculated; an amount of the applied energy used to drill formations below the drill bit (2) is calculated; and at least one drilling operating parameter is adjusted based on energy calculation before or during drilling operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.