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02299 CO2 Corrosion of L-80 Steel in Simulated Oil Well Conditions

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Product Number: 51300-02299-SG
ISBN: 02299 2002 CP
Author: J.Carew and A. Hashem
Industry: Oil and Gas Production
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An investigation was carried out to study the behavior of L-80 carbon steel in different volume percentage of produced water in crude oil in the presence of saturated pure CO2. Studies were performed under downhole conditions of varying temperatures (60-90°C) and total pressures (500 and 1000 psi) in an autoclave test apparatus with controlled rotating electrode. The corrosion rates were compiled using the linear polarization technique. The open circuit potential with time of L-80 in the different water cuts were also recorded. Three rotational speeds of 1000, 2000 and 3000 rpm were used during the experiments. The results revealed that corrosion rate and open-circuit potentials of L-80 carbon steel are dependent on the percentage water present and are affected by rotational speeds of the electrodes. Key words: CO2 Corrosion, L-80 Carbon Steel, Rotating Cylinder Electrode, downhole Conditions, Crude Oil.
An investigation was carried out to study the behavior of L-80 carbon steel in different volume percentage of produced water in crude oil in the presence of saturated pure CO2. Studies were performed under downhole conditions of varying temperatures (60-90°C) and total pressures (500 and 1000 psi) in an autoclave test apparatus with controlled rotating electrode. The corrosion rates were compiled using the linear polarization technique. The open circuit potential with time of L-80 in the different water cuts were also recorded. Three rotational speeds of 1000, 2000 and 3000 rpm were used during the experiments. The results revealed that corrosion rate and open-circuit potentials of L-80 carbon steel are dependent on the percentage water present and are affected by rotational speeds of the electrodes. Key words: CO2 Corrosion, L-80 Carbon Steel, Rotating Cylinder Electrode, downhole Conditions, Crude Oil.
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02276 WHY CORROSION INHIBITORS DO NOT PERFORM WELL IN SOME MULTIPHASE CONDITIONS: A MECHANISTIC STUDY

Product Number: 51300-02276-SG
ISBN: 02276 2002 CP
Author: Hongbin Wang, Hongwei Wang, Hua Shi, Cheolho Kang, and Paul W. Jepson
Publication Date: 2002
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Results of inhibitor performance at slug flow in a 101.6 mm inner diameter horizontal pipeline. Electrochemical Impedance Spectroscopy (EIS) and scanning electrom microscope (SEM) techniques are used to reveal that the strong bubble impact, high shear stress and turbulent intensity are the reasons for a poor performance of inhibitor.
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02274 EFFECTIVENESS OF CORROSION INHIBITORS IN RETARDING PROPAGATION OF LOCALISED CORROSION

Product Number: 51300-02274-SG
ISBN: 02274 2002 CP
Author: A. Turnbull, D. Coleman, A.J. Griffiths, P.E. Francis, and L. Orkney
Publication Date: 2002
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In many service applications excursions in solution chemistry, temporary loss of inhibitor, or transient increases in temperature may give rise to localised corrosion. To test the return of inhibition when the loss is remedied, the use of an artificial pit has been investigated using simulations of cooling water and of of oil production formation water.
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02497 REPRODUCIBILITY IN ROTATING CYLINDER AUTOCLAVE TESTING OF CORROSION INHIBITORS

Product Number: 51300-02497-SG
ISBN: 02497 2002 CP
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