Patent ID: 8427336
Filing Date: 2013-04-23
Classification: E21B,G01V,Y10T

Abstract:
1. A subsea control module comprising: a casing containing one or more hydraulic components within an interior thereof and configured to prevent ingress of seawater therein when operably deployed; a pair of electrodes contained within the interior of the casing; and an electronic circuit operably coupled to the pair of electrodes and configured to detect changes in an electrical characteristic between the pair of electrodes as a result of a change in characteristic of fluid to which the pair of electrodes are exposed, and responsive to the change in characteristic, to detect ingress of seawater into the interior of the casing when so occurring and to detect ingress of hydraulic fluid into the interior of the casing when so occurring, wherein the electronic circuit includes at least one isolator switch positioned to provide intermittent energization of the pair of electrodes to thereby reduce corrosion of the pair of electrodes.