System and method for the detection of ingress of liquids and permeation of gases between the layers of a pipe or submarine cable flexible multilayer based on sensors magnetoelu00e1sticos

摘要

System and method for the detection of ingress of liquids and permeation of gases between the layers of a flexible pipe or submarine cable.Based on the system for the detection of sensors magnetoelu00e1sticos ingress of liquids (flooding) and permeation of gases (such as H2S, CO2,CH4) between the layers of a pipe (riser or flowline) or cable (umbilical) submarine flexible multilayered object of the present invention.Aim to alert operators of such structures with respect to the existence of the regions in which they are present such substances, which may erode and weaken the material, and eventually lead him to fail.The system described has as main advantages is the fact that the sensors having geometry in the form of a tape of small thickness, which are ideal for insertion between the layers of the structure in question.In addition, the sensor operates remotely, without the need for any type of cable or fiber to connect it to the devices of excitation and reading or the electronic modules for operation thereof.Reading devices can operate with the expulsion of tens of centimeters, including on metal layers or polymeric, as is the structure in question.Allowing the reading of sensors embedded in the structure.The sensors, the excitation and reading devices, and electronic modules of operation, are cheap, robust and simple.Making this a competitive solution for the inspection and monitoring of these structures.The technical sector: tools to test for the detection of changes in physical properties by measuring magnetic vibrating elements, applicable to the oil and gas area