Accurate measurement of methane gas leak flow rate
US12411153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2024 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Aug 27, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/95
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems for detecting and measuring gas flow are disclosed in which lidar distance information, acquired during the detection of gas using a lidar sensor, is used together with local wind data to determine a rate of flow for the detected gas. The local wind data, which may comprise one or more vectors or a 3D wind model, may be determined based on prevailing wind data and the lidar distance information, and can use computational fluid dynamics (CFD) models to determine the wind velocity through 3D structures identified using the lidar sensor. The detection of gas flow using the disclosed technology may be particularly useful for the remote detection and quantification of leaks from natural gas (methane) wells and pipelines to locate, quantify and map fugitive emissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.