Drilling mud flow metering system and method
US12013273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2022 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Aug 7, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N9/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mud flow measurement system includes a flow pipe, a Coriolis meter, a differential pressure sensor, and a mud flow measurement module. The mud flow measurement module is configured to select a calibration curve corresponding to a drilling mud injected into the well, determine a measured density based on the signal from each of the vibration sensors and the selected calibration curve, determine a differential pressure across the Coriolis meter from the differential pressure sensor, and compute a calculated mass flow rate, Qmass, of the multiphase mud flow using equation where Cd is a calibration constant, At is a cross-sectional area of the measurement tube, β is a ratio of the internal diameters of the flow pipe the measuring tube, ρ is the density of the multiphase mud, and ΔP is the differential pressure across the Coriolis meter, where ρ is the measured density determined from the Coriolis meter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.