SYMPOSIA PAPER Published: 01 January 1981
STP28264S

Replaceable Deep Groundbed Anode Materials

Source

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.

Author Information

Tatum, JF
Cathodic Engineering Equipment Co., Hattiesburg, Miss.
Price: $25.00
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Details
Developed by Committee: G01
Pages: 182–203
DOI: 10.1520/STP28264S
ISBN-EB: 978-0-8031-4807-9
ISBN-13: 978-0-8031-0703-8