The present invention generally provides a system for metal corrosion protection, including a metallic object to be protected, connectable to an electron source as cathode, an electrically isolating coating disposed on at least a portion of the metallic object, an electrically conductive blanket anode applied on at least a portion of the electrically isolating coating; an electrode electrically connected to the blanket anode and connectable to the electron source. The present invention further proposes a kit for providing corrosion protection to a substrate and method thereof.

A marine vessel propulsion device having a metal component in contact with water. The marine vessel propulsion device includes an anticorrosive anode made of a metal material that is less corrosion-resistant than the metal component, is electrically connected to the metal component, and is disposed in contact with the water contacting the metal component, a primary reference electrode isolated from the metal component and the anticorrosive anode, and disposed in contact with the water contacting the metal component, and a potentiometer that detects a potential difference of the metal component or the anticorrosive anode with respect to the primary reference electrode.

The invention discloses an offshore Tension Anode system and an installation method thereof. The system comprises a tension platform, a tension device, a composite cable integrated with auxiliary anodes and reference electrodes, and a gravity type foundation base, wherein the tension device is installed on the tension platform; the upper end of the composite cable is tensioned by the tension device, and the lower end of the composite cable sinks to a seabed along with the gravity type foundation base and is anchored by the gravity type foundation base; and the composite cable integrated with the auxiliary anodes and the reference electrodes is a main part of the system. The system is simple in structure and convenient to install and transport. The invention further discloses the installation method of the system, which can safely and reliably install the offshore tension anode system on an offshore platform. The installation method mainly comprises: (1) lifting the composite cable and the gravity type foundation base to an offshore platform; (2) installing the gravity type foundation base on a seabed; (3) installing the composite cable; (4) tension adjustment and lock fixation of composite cable.

Embodiments of the present disclosure provide devices, systems and methods for monitoring anti-corrosion efforts including the efficacy of cathodic protection systems. Embodiments of the present disclosure provide devices, systems and methods for remote cell cathodic protection (CP) survey data acquisition to sense, display, and record CP survey voltage potential measurements as well as global positioning system and navigation data. Embodiments of the present disclosure provide improvements in terms reduced noise and improved signal quality through the use of copper conductors that connect electrochemical reference cells (i.e., electrodes) to measuring apparatus. Further, improved signal detection is provided by embodiments including reference electrodes that may be placed further (e.g., up to 1000 feet) from a surface vessel than are found in conventional system. Disclosed embodiments also provide highly precise spatial mapping of CP potentials (e.g., to within 0.5 mm spatial resolution in 1000 feet of depth).

A system, apparatus, and method for analyzing cathodic protection (CP) current shielding of a coating are provided. The system includes: a test cell configured to have a coating film disposed therein and to be filled with electrically conductive solution surrounding the coating film; an electrical resistance (ER) probe mounted through a port of the test cell; and a potentiostat configured to: apply potential to the test cell to thereby polarize a sensing element of the ER probe such that the ER probe is configured to measure data indicative of a corrosion rate of the sensing element when the coating film is disposed within the test cell and while a CP current flows through the sensing element; and measure a current density through the sensing element in order to indicate an extent of CP current shielding of the coating film.

A selectively removable engine anode having a metallic anode base with a threaded configuration disposed proximal to a lower end thereon and on an outer surface, a flanged platform extending radially along a longitudinal length of the base to define an outer flange diameter, and a cantilevered retention member directly coupled to the flanged platform and having a diameter less than the outer flange diameter. The anode includes a galvanic anode with a first anode end coupled to the flanged platform, a second anode free end opposing the first anode end, and an anode length separating the first anode end and the second anode free end, wherein the galvanic anode and the flanged platform encapsulate the cantilevered retention member, the anode base is selectively removably couplable to a plug that is operably configured to be selectively coupled to a marine engine.

Flexible pipe body, a flexible pipe and a method of manufacturing pipe body are disclosed. The flexible pipe body comprises a tensile armour layer and a supporting layer radially outside, or radially inside, and in an abutting relationship with the tensile armour layer. The supporting layer comprises a helically wound constraining tape element and a helically wound electrically conductive tape element.

A method includes receiving electric field data regarding an electric field that is detected in an underwater environment by a plurality of electrodes mounted on a first structure, and receiving sensor data from at least one sensor mounted on the first structure. The sensor data relates to a sensed location of a second structure. The method includes determining location data including information regarding a location of the second structure relative to the first structure in the underwater environment based on the sensor data, and determining one or more characteristics of the second structure based on the electric field data and the location data.

This application discloses magnetically coupled integrated probes and probe systems, attachable to the robotic arms of a remotely operated vehicle to perform both cathodic protection (CP) voltage measurements and ultrasonic testing (UT) thickness measurements at an underwater surface. The integrated probe system can include a spring for coupling to an ROV end effector. An ultrasonic probe is disposed within and extends from the sleeve housing. A magnetic carrier, flux concentrator, and gimbal surround a portion of the ultrasonic probe, and one or more electrically conductive legs extend from the front surface of the gimbal to function as a CP probe. The legs are arranged about the ultrasonic probe, which has a flexible membrane exposed at the front surface of the gimbal, such that during inspection, at least one leg contacts the surface and the ultrasonic probe is sufficiently proximate to provide substantially simultaneous CP and UT measurements.

A marine vessel propulsion device having a metal component in contact with water. The marine vessel propulsion device includes an anticorrosive anode made of a metal material that is less corrosion-resistant than the metal component, is electrically connected to the metal component, and is disposed in contact with the water contacting the metal component, a primary reference electrode isolated from the metal component and the anticorrosive anode, and disposed in contact with the water contacting the metal component, and a potentiometer that detects a potential difference of the metal component or the anticorrosive anode with respect to the primary reference electrode.