الفهرس 
Objective of the Research
Deep Well Anode ApproachOnly 14 pages are availabe for public view
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Abstract
Samir Abdel Hamid Ali . Study of the effect of depth on anode
well cathodic protection. Faculty of Engineering. Ain Shams
University .
External corrosion can cause serious problems to underground
metallic structures if not treated properly. National economies
are hence badly affected due to the presence of corrosion on pipe
lines, storage tanks and other kinds of transportation means.
In oil and gas Production fields where corrosion is widely spread,
external corrosion is almost mitigated by applying cathodic
protection impressed current systems by means of transformer
rectifiers. Shallow ground beds are usually used, but due to some
circumstances, it becomes impossible to apply such systems, and
alternative techniques as deep well anodes ground beds may be
satisfactory used.
Plain type of anode wells are frequently used. By time, soil
pa..rticles penetrate well casing and surround anods. Resistance of
anodes consequently change substantially, resulting considerable
deviation in anode performance.
The aim of the present research is to study the effect of depth on
the performance of anodes related to impressed current cathodic
protection systems. The electrical resistance of anodes installed
deeper below ground surface, was theoretically investigated by
Dwight Sunde who derived a formula for resistance as a function
of both depth and surrounding soil resistivity. For this purpose,
an experimental test system has been designed and constructed in
Belayim Petroleum Company, Abu Madi gas plant, where
corrosion problems are enormously found.