Methane emission assessment using mobile surveys over time in a target area
AssigneePicarro, Inc.
InventorsSean MacMullin, Francois-Xavier Rongere, Noah Randolph, Alan Ly
Life of this patent
Estimating the term…
Abstract
In some embodiments, methane leak emissions are quantified accurately in natural gas distribution systems in which mobile surveys are performed on different parts of a target area over an extended reporting period (e.g. a year or more). Emission calculations depend on repair and/or mobile survey schedules, and employ temporal and/or spatial extrapolation in order to account for imperfect real-time information about system state.
Claims21
A system comprising at least one hardware processor and a memory storing instructions which, when executed, cause the system to:
- receive collected data including gas concentration and location values collected by a vehicle-borne gas concentration measurement device configured to perform a sequence of geospatially-referenced mobile gas concentration measurements along one or more survey paths within a target area;
- identify a set of gas leaks within the target area according to the collected data;
- and
- determine a total gas emission quantity emitted within the target area over a time period encompassing the sequence of gas concentration measurements, wherein determining the total gas emission quantity comprises performing a temporal extrapolation of gas emission quantity over at least part of the time period encompassing the sequence of gas concentration measurements.
A method comprising employing a system comprising at least one hardware processor and a memory storing instructions to:
- receive collected data including gas concentration and location values collected by a vehicle-borne gas concentration measurement device configured to perform a sequence of geospatially-referenced mobile gas concentration measurements along one or more survey paths within a target area;
- identify a set of gas leaks within the target area according to the collected data;
- and
- determine a total gas emission quantity emitted within the target area over a time period encompassing the sequence of gas concentration measurements, wherein determining the total gas emission quantity comprises performing a temporal extrapolation of gas emission quantity over at least part of the time period encompassing the sequence of gas concentration measurements.
A non-transitory computer-readable medium encoding instructions which, when executed by at least one hardware processor of a computer system, cause the computer system to:
- receive collected data including gas concentration and location values collected by a vehicle-borne gas concentration measurement device configured to perform a sequence of geospatially-referenced mobile gas concentration measurements along one or more survey paths within a target area;
- identify a set of gas leaks within the target area according to the collected data;
- and
- determine a total gas emission quantity emitted within the target area over a time period encompassing the sequence of gas concentration measurements, wherein determining the total gas emission quantity comprises performing a temporal extrapolation of gas emission quantity over at least part of the time period encompassing the sequence of gas concentration measurements.
Dependencies are inferred from the claim text.