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10099 Field Techniques and Verification of Organic Acid Speciation for Corrosion Risk Assessment

Picture for 10099 Field Techniques and Verification of Organic Acid Speciation for Corrosion Risk Assessment
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Product Number: 51300-10099-SG
ISBN: 10099 2010 CP
Author: Dezra Hinkson and George Peck
Publication Date: 2010
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$20.00
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In a previous work, a thermodynamic model was proposed to predict the chemical speciation of the condensate at the top of the line. In this work, this thermodynamic approach was validated by field studies at an onshore oil and gas field. A review of the concepts and techniques for field analysis of organic acids was presented. Additionally, some practical considerations regarding the collection of field samples for the analysis of organic acids and the determination of the corrosivity of the condensed liquids at the top of the line were explored. Using thermodynamic theory, a novel technique of sample collection for organic acid analysis was developed. The possible sources of organic acids in oil and gas operations, such as the impact of acid stimulation jobs on organic acid concentrations in well fluids, were also investigated.

Key words: organic acid, top of line corrosion, condensed water chemistry, acid stimulation
In a previous work, a thermodynamic model was proposed to predict the chemical speciation of the condensate at the top of the line. In this work, this thermodynamic approach was validated by field studies at an onshore oil and gas field. A review of the concepts and techniques for field analysis of organic acids was presented. Additionally, some practical considerations regarding the collection of field samples for the analysis of organic acids and the determination of the corrosivity of the condensed liquids at the top of the line were explored. Using thermodynamic theory, a novel technique of sample collection for organic acid analysis was developed. The possible sources of organic acids in oil and gas operations, such as the impact of acid stimulation jobs on organic acid concentrations in well fluids, were also investigated.

Key words: organic acid, top of line corrosion, condensed water chemistry, acid stimulation
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This paper reviews the effect of low molecular weight organic acids ( acetic, propionic, butyric) on corrosion rates in the presence of CO2.  The effect of the mineral content of the produced water is also discussed. Laboratory methods for determining the concentration of low concentrations of organic acids are discussed. Laboratory and field data are presented.

 

 
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