US 2025/0085184 A1Published application

Probability-based pipeline leak monitoring tool

AssigneeChevron U.S.A. Inc.

InventorsJoseph Eli Patterson, Jennifer C. Meyer

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Abstract

Pressure of fluid inside a pipeline are measured at one or more locations along the pipeline. Rates of pressure changes at the location(s) along the pipeline are determined using pressure measurements, moving average of the pressure measurements, and sampling intervals for the pressure measurements. Pressure change rate cumulative distribution function(s) are generated for the location(s) along the pipeline. The pressure change rate cumulative distribution function(s) are used to convert a rate of pressure change to a probability of a leak along the pipeline. The probabilities of leaks along the pipeline are used to monitor the pipeline for leaks.

Claims20

Dependent claims

A system for monitoring pipeline leaks, the system comprising:

one or more physical processors configured by machine-readable instructions to:
obtain pressure information for a pipeline, the pressure information defining pressure measured at one or more locations along the pipeline, the pressure measured at the one or more locations along the pipeline using one or more sampling intervals;
determine a moving average of the pressure measured at the one or more locations along the pipeline;
determine pressure change rates at the one or more locations along the pipeline based on the pressure measured at the one or more locations along the pipeline, the moving average of the pressure measured at the one or more locations along the pipeline, and the one or more sampling intervals for the one or more locations along the pipeline;
generate a pressure change rate cumulative distribution function for individual ones of the one or more locations along the pipeline based on the pressure change rates at the individual ones of the one or more locations along the pipeline;
determine leak probabilities at the one or more locations along the pipeline based on the pressure change rate cumulative distribution function for the individual ones of the one or more locations along the pipeline;
and
facilitate leak monitoring for the pipeline based on the leak probabilities at the one or more locations along the pipeline.

5 more elements

A method for monitoring pipeline leaks, the method comprising:

obtaining pressure information for a pipeline, the pressure information defining pressure measured at one or more locations along the pipeline, the pressure measured at the one or more locations along the pipeline using one or more sampling intervals;
determining a moving average of the pressure measured at the one or more locations along the pipeline;
determining pressure change rates at the one or more locations along the pipeline based on the pressure measured at the one or more locations along the pipeline, the moving average of the pressure measured at the one or more locations along the pipeline, and the one or more sampling intervals for the one or more locations along the pipeline;
generating a pressure change rate cumulative distribution function for individual ones of the one or more locations along the pipeline based on the pressure change rates at the individual ones of the one or more locations along the pipeline;
determining leak probabilities at the one or more locations along the pipeline based on the pressure change rate cumulative distribution function for the individual ones of the one or more locations along the pipeline;
and
facilitating leak monitoring for the pipeline based on the leak probabilities at the one or more locations along the pipeline.

4 more elements

Dependencies are inferred from the claim text.