Patent ID: 11940318
Assignee: BAKER HUGHES ENERGY TECHNOLOGY UK LIMITED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A processor-based method for identifying faulty sensors in a fluid production network, comprising:
acquiring training measurements from a plurality of sensors over time, wherein the plurality of sensors are positioned in a flow path of a fluid and at least one of the plurality of sensors measures a flow of a multiphase production fluid;
performing a principal components analysis of the training data to generate a principal components model defining a principal components component and a residual subspace;
acquiring current measurements from the plurality of sensors;
defining a number of operating points using on the previously acquired training measurements of the plurality of sensors;
projecting the current measurements of each operating point into the residual subspace to detect one or more outliers wherein the defined operating points are used as inputs, if present;
if one or more outliers are detected, applying partial decomposition to generate one or more contribution plots; and
identify a faulty sensor based on the contribution plots.