Discharge coefficient determination of a managed pressure drilling choke/valve
US10533386B2 · kind B2 · utility
5Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2014 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Jan 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F25/15
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for determining a discharge coefficient of a managed pressure drilling choke/valve as a function of valve opening position. The method comprises: a flow of air/gas through the choke/valve; measuring a velocity of the air/gas flow at an inlet of the choke/valve; and measuring a pressure drop of the air/gas flow across the choke/valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.