公开(公告)号：US20210148486A1

公开(公告)日：2021-05-20

申请号：US16464756

申请日：2017-10-03

申请人： GE Oil & Gas UK Limited

发明人： John Cross McNabb ,  Philip Michael Nott

IPC分类号： F16L1/12 ,  F16L11/08 ,  F16L11/127 ,  F16L53/38 ,  G01K1/143

摘要： A method and apparatus for detecting pipe entrenchment or upheaval of a flexible pipe and/or the presence of an external feature to the flexible pipe. The method includes helically winding a temperature sensing element around a layer of a flexible pipe, helically winding a heating element around a layer of a flexible pipe, heating the heating element to a pre-determined temperature, measuring the temperature at at least two locations along the flexible pipe, comparing the measured temperature response at the at least two locations, and making a determination, from the comparison of measured responses, regarding the exterior vicinity of the pipe at one of the at least two locations.