Patent ID: 9151722
Filing Date: 2015-10-06
Classification: G01N,G01T

Abstract:
1. A system for determination of wax deposition and corrosion in a pipeline, comprising: a neutron radiation source for emitting neutrons towards a pipeline; a slow neutron detector; an absorption shield having a high slow neutron absorption cross section surrounding the slow neutron detector, the absorption shield defining a collimation window for collimating neutrons diffusing back to the detector from the pipeline; wherein the absorption shield is cylindrical, collimation being adjustable by adjusting distance between the detector and the pipeline and by retracting the detector a selectable distance within the cylindrical absorption shield; and means for counting neutrons diffusing back to the slow neutron detector, the amount of wax deposition and corrosion in the pipeline being positively correlated with the count of neutrons as provided by the counting means.