Experience with precious metal anodes in open hole deep groundbeds

Journal Article · Sat Mar 01 04:00:00 EST 1980 · Mater. Performance; (United States)

OSTI ID:5133657

Toncre, A C

To optimize the design of cathodic-protection systems for large-diameter transmission pipelines in remote desert areas, the Arabian American Oil Co., Saudi Arabia, tested the performance of six high-output precious-metal anodes. After a year's operation in open wells containing water rich in sodium, magnesium, and chloride, the platinized niobium anodes produced current densities ranging from 9.5 to 25.3 A/ft/sup 2/ at 28-124 A and 22-50 V. The preliminary results suggest that platinum-niobium anodes will be more economical in high-put, deep groundbeds than the graphite or silicon iron anodes formerly used. Reduced requirements for anode size, backfill material, and support structures offset the higher cost of the precious-metal anode.

• OSTI ID: 5133657
• Journal Information: Mater. Performance; (United States), Journal Name: Mater. Performance; (United States) Vol. Mar 1980; ISSN MTPFB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420205* -- Engineering-- Transport & Storage Facilities-- (1980-)
ANODES
ARID LANDS
CATHODIC PROTECTION
CORROSION PROTECTION
DESERTS
ECONOMICS
ELECTRODES
ELEMENTS
METALS
NIOBIUM
PERFORMANCE TESTING
PIPELINES
PLATINUM
PLATINUM METALS
TESTING
TRANSITION ELEMENTS