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00033 CORROSION INHIBITION STUDIES IN MULTIPHASE FLOW AT HIGH PARTIAL PRESSURE OF CO2

Product Number: 51300-00033-SG
ISBN: 00033 2000 CP
Author: Bruce Brown, William Paul Jepson, Dan W. Townley, Niell Strickland
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Laboratory testing of chemicals is considered effective when the conditions tested resemble the operating conditions where the chemical will be used. Six inhibitors were tested under a CO2 partial pressure of 2.5 MPa, three different flow regimes, and two water/oil/methanol compositions at 40°C to show their effectiveness in limiting the corrosion rate. Turbulence under slug flow conditions produced the highest corrosion rates and one inhibitor was less effective when methanol was added to the system. Therefore, testing of inhibitors under multiphase flow conditions is recommended for pipeline inhibitor selection studies.

Laboratory testing of chemicals is considered effective when the conditions tested resemble the operating conditions where the chemical will be used. Six inhibitors were tested under a CO2 partial pressure of 2.5 MPa, three different flow regimes, and two water/oil/methanol compositions at 40°C to show their effectiveness in limiting the corrosion rate. Turbulence under slug flow conditions produced the highest corrosion rates and one inhibitor was less effective when methanol was added to the system. Therefore, testing of inhibitors under multiphase flow conditions is recommended for pipeline inhibitor selection studies.

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