A cathodic protection system that comprises a vessel for containing a fluid, an anode positioned inside the vessel, a hydrophilic and oleophobic coating covering at least a portion of the anode, wherein the coating allows ions to pass therethrough and repels oil and wax contaminants from reaching at least a portion of the anode, and an impressed current source electrically connected to the anode and the vessel, the vessel being a cathode when current is applied from the current source. A corrosion protection method coats at least a portion of a suitably sized anode, with a material having hydrophilic and oleophobic properties, positions the coated anode in the vessel, and fills the vessel with fluid. A voltage is applied between the vessel and the anode so that ions flow from the anode, through the fluid, to the vessel.

The present invention provides a sacrificial anodic plug for insertion within an irrigation span to provide anodic corrosion protection. According to a preferred embodiment, the anodic plug of the present invention includes a protective cap connected to a securing bushing, and an anodic coupler which extends into the interior of the irrigation span. Preferably, the securing bushing includes non-conductive threads for mating with the threads of a sprinkler outlet and for electrically isolating the anodic coupler from the protective cap. According to further preferred embodiments, the anodic coupler is formed of magnesium and extends down away from the protective cap and terminates in an anodic base. According to a further preferred embodiment, the protective cap may include a wear indicator indicating the amount of anodic material remaining in the central anodic coupler and anodic base.

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 electronic corrosion protection (ECP) device includes a physical interface for connecting to an on-board diagnostic port of a vehicle. The ECP device can be easily and safely installed in a vehicle and provide corrosion protection to metal components of the vehicle.

A electronic corrosion protection (ECP) device includes a physical interface for connecting to an on-board diagnostic port of a vehicle. The ECP device can be easily and safely installed in a vehicle and provide corrosion protection to metal components of the vehicle.

A reinforced concrete structure comprising a hardened concrete containing at least one steel reinforcement, a plurality of anode cavities and interconnecting slots formed within the hardened concrete, with the interconnecting slots interconnecting adjacent anode cavities with one another. A discrete galvanic anode is installed within each of the anode cavities. At least one connector for connecting the plurality of discrete galvanic anodes with the at least one steel reinforcement. A plurality of interconnecting galvanic anodes which each comprises a metallic element which has an interconnecting connector extending from opposed ends thereof. Each of the interconnecting galvanic anodes is installed within a respective interconnecting slot. First and second ends of the interconnecting connector are respectively connected to adjacent first and second discrete galvanic anodes. Each interconnecting galvanic anode contains sufficient sacrificial metal to increase a total protection current delivered to the steel reinforcement.

Minimum Federal Safety Standards for corrosion control on buried oil & gas pipelines stipulate that metallic pipes should be properly coated and have impressed-current cathodic protection (ICCP) systems in place to control the electrical potential field around a protected pipe. In certain examples described herein, electrically-conductive composites can be used and provide intrinsically-safe materials without the dielectric shielding issues of existing materials used with pipelines. As reacted by customary spray applications, the nanocomposite foams described herein are directly compatible with ICCP functionality wherever foam contacts the metallic pipe. Various compositions and their use with underground and/or above ground pipelines are described.

Minimum Federal Safety Standards for corrosion control on buried oil & gas pipelines stipulate that metallic pipes should be properly coated and have impressed-current cathodic protection (ICCP) systems in place to control the electrical potential field around a protected pipe. In certain examples described herein, electrically-conductive composites can be used and provide intrinsically-safe materials without the dielectric shielding issues of existing materials used with pipelines. As reacted by customary spray applications, the nanocomposite foams described herein are directly compatible with ICCP functionality wherever foam contacts the metallic pipe. Various compositions and their use with underground and/or above ground pipelines are described.

A method for eliminating hydrocarbon fouling and reducing pumping power during hydrocarbon transportation. A dielectric layer covers the inner surface of a pipeline for transporting a water-hydrocarbon mixture. A proximity electrode is immersed in the water-hydrocarbon mixture, and an electrical voltage is applied across the dielectric layer. A buffer layer of water is formed on the dielectric layer since water is electrically attracted from the water-hydrocarbon mixture. This water layer, located between the dielectric layer and the water-hydrocarbon mixture, eliminates hydrocarbon fouling on the inner surface of the pipeline or any other internal surface that needs fouling protection. Alternatively, the dielectric layer covers an outer surface of the pipeline and is covered by an external conducting layer. Applying a potential difference between the proximity electrode and the external conducting layer still forms a water buffer layer between the inner surface and the water-hydrocarbon mixture, which eliminates hydrocarbon fouling.

A method for eliminating hydrocarbon fouling and reducing pumping power during hydrocarbon transportation. A dielectric layer covers the inner surface of a pipeline for transporting a water-hydrocarbon mixture. A proximity electrode is immersed in the water-hydrocarbon mixture, and an electrical voltage is applied across the dielectric layer. A buffer layer of water is formed on the dielectric layer since water is electrically attracted from the water-hydrocarbon mixture. This water layer, located between the dielectric layer and the water-hydrocarbon mixture, eliminates hydrocarbon fouling on the inner surface of the pipeline or any other internal surface that needs fouling protection. Alternatively, the dielectric layer covers an outer surface of the pipeline and is covered by an external conducting layer. Applying a potential difference between the proximity electrode and the external conducting layer still forms a water buffer layer between the inner surface and the water-hydrocarbon mixture, which eliminates hydrocarbon fouling.