Method of monitoring the interior of a subsea pipeline
AssigneeIfp Energies Nouvelles
InventorVincent CLOCHARD
Life of this patent
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Abstract
The invention relates to a method of monitoring the interior of a pipeline (1) positioned in contact with a soil (S) below a water mass (E), comprising implementation of the following steps by data processing means (11): (a) for at least one position along said pipeline (1), obtaining acoustic data descriptive of at least one cross-section of said pipeline (1) at said position, acquired by a mobile acoustic acquisition device (20) in said water mass (E), (b) estimating by quantitative migration from said acoustic data an estimated relative impedance perturbation profile in at least said cross-section of said pipeline (1).
Claims14
A method of monitoring the interior of a pipeline positioned in contact with a soil below a water mass, comprising implementation by data processing means of the following steps:
- (a) for at least one position along the pipeline, obtaining acoustic data descriptive of at least one cross-section of the pipeline at the position, acquired by a mobile acoustic acquisition device in the water mass,
- (b) estimating by quantitative migration from the acoustic data an estimated relative impedance perturbation profile in at least the cross-section of the pipeline.
An equipment for monitoring the interior of a pipeline positioned in contact with a soil below a water mass, the equipment comprising data processing means configured:
- for at least one position along the pipeline, to obtain acoustic data descriptive of at least one cross-section of the pipeline at the position, acquired by a mobile acoustic acquisition device in the water mass,
- to estimate by quantitative migration from the acoustic data an estimated relative impedance perturbation profile in at least the cross-section of the pipeline.
Dependencies are inferred from the claim text.