AC impedance spectroscopy - A dynamic tool for the design of corrosion inhibitors

Conference · Sun May 01 04:00:00 EDT 1988 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:7072720

Growcock, F B; Jasinski, R J

Corrosion of steel during oil well acidizing or acid pickling treatments can be controlled effectively and economically with corrosion inhibitors. It is generally accepted that these additives function by forming an adherent barrier on the steel surface, the nature of which depends on various physiochemical properties of the inhibitor. Work to date has established that acetylenic alcohols first chemisorb and subsequently polymerize on steel surfaces. ..cap alpha.., BETA-Unsaturated aldehydes and ..cap alpha..-alkenylphenones behave in a similar manner. On the other hand, quaternary nitrogen salts adsorb electrostatically and do not appear to form macroscopic films. In this paper, the authors describe some AC impedance spectroscopy studies they have undertaken with the objective of elucidating the roles that adsorption and film formation play in the inhibition mechanisms of the compounds mentioned above.

• Research Organization: Dowell Schlumberger, P.O. Box 2710, Tulsa, OK (US)
• OSTI ID: 7072720
• Report Number(s): CONF-880659-
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 33:1
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACETYLENE
ACIDIZATION
ALCOHOLS
ALKYNES
ALLOYS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CHEMISORPTION
CORROSION
CORROSION INHIBITORS
CORROSION PICKLING
HYDROCARBONS
HYDROXY COMPOUNDS
IMPEDANCE
IRON ALLOYS
IRON BASE ALLOYS
OIL WELLS
ORGANIC COMPOUNDS
PICKLING
SEPARATION PROCESSES
SORPTION
SPECTROSCOPY
STEELS
SURFACE TREATMENTS
TECHNOLOGY ASSESSMENT
WELLS