Published: Jan 1981
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The replaceable deep anode groundbed design is described in detail. Each component of the groundbed is shown along with complete details covering the installation thereof, with design factors and other parameters.
The various types of anode materials are described, and configurations of graphite anodes are discussed in detail with particular emphasis on the use of a center-tapped anode to prevent premature anode failure from end effect. Other anode materials are described, such as platinized titanium, platinized niobium, and platinum clad niobium. The use of platinum anode materials are covered in detail along with various anodically passive substrates.
Wire insulations are covered, such as high molecular weight polyethylene, and the dual jacketed insulations involving fluoropolymers along with their performance in downhole environments.
Calcined petroleum coke backfills are presented with information as to their resistivity and the various material specifications available.
The interference characteristics of deep groundbeds versus surface beds are shown in detail. The superiority of the deep groundbed in eliminating anodic interference is described, with data as to causes of cathodic interference.
replaceable deep groundbed, deep groundbeds, calcined petroleum coke dual jacketed wire insulations, platinized titanium, platinized niobium, platinum clad niobium, acrylonitrile-butadiene-styrene, center-tapped anode, graphite, metallurgical coke, high molecular weight polyethylene, polyvinylidene fluoride, polyolefin jacket, ethylene chlorotrifluoroethylene, wire anodes, rotary rig, end effect, underground corrosion
Chairman of the board, Cathodic Engineering Equipment Co., Hattiesburg, Miss.
Paper ID: STP28264S