Maintenance device and method for determining the position of a blockage point of a tubular member
AssigneesFebus Optics, Drillstar Industries
InventorsVincent Lanticq, Pierre Clément, Tarek Marion Lamazouade, Raphaël Souchal, Cédric Cabé
Life of this patent
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Abstract
The invention relates to a maintenance device (1) for determining the position of a blockage point (2) of a tubular member (3), characterized in that it includes a fiber-optic cable (40) and a plurality of holding guides (20), each holding guide (20) being attached to the fiber-optic cable (40) and including a means (21) for attaching to the tubular member (3). The invention also relates to a method and a system for determining the position of a blockage point of a tubular member.
Claims22
A maintenance device for determining a position of a blockage point of a tubular member, the maintenance device comprising:
- a fiber-optic cable, and
- a plurality of holding guides, each holding guide being attached to the fiber-optic cable, and comprising attachment means configured to be removably attachable to an inner wall of the tubular member.
A method for determining a position of a blockage point of a tubular member by means of a maintenance device comprising a fiber-optic cable and a plurality of holding guides, each holding guide being attached to the fiber-optic cable and including an attachment means configured to be removably attachable to an inner wall of the tubular member, the maintenance device being inserted into the tubular member and the holding guides being attached to the tubular member by means of the attachment means, said method comprising:
- taking a first reflectometry distributed measurement,
- applying a stress to the tubular member or removing a stress applied to the tubular member prior to the first reflectometry distributed measurement,
- taking a second reflectometry distributed measurement, and
- determining the position of the blockage point of the tubular member by comparing the first and second reflectometry measurements.
Dependencies are inferred from the claim text.