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Bicarbonate

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Journal Articles
Journal: Corrosion
Corrosion 51 (09).
Paper Number: NACE-95090682
Published: 01 September 1995
... in the electrolyte.15-17 Likewise, in the case of solutions containing carbonate (CO32­)-bicarbonate (HCO3­) ions, the active-to-passive transition of copper includes the formation of copper carbonates whose contribution to the protective action of the composite surface layer depends on solution pH.16,19 At constant...
Proceedings Papers

Paper presented at the SPE Asia Pacific Unconventional Resources Conference and Exhibition, November 9–11, 2015
Paper Number: SPE-176847-MS
... that produced water samples from Huntly CBM wells are plotted in the middle along chloride-bicarbonate axis. This indicates that the water samples are CBM water originated from moderate to good permeability coal seams. The water samples also indicate that they have some communication with shallow aquifer due...
Proceedings Papers

Paper presented at the SPE Kuwait Oil and Gas Show and Conference, October 11–14, 2015
Paper Number: SPE-175394-MS
..., as CO 2 cannot be temporarily stored until sunrise. Therefore, the condensation of CO 2 from flue gasses in the form of bicarbonate (HCO-3) solution would provide a superior alternative for CO 2 delivery as feedstock for algae culture system ( Van Den Hende et al., 2012 .)Furthermore, it reduces CO 2...
Proceedings Papers

Paper presented at the SPE International Oilfield Scale Conference and Exhibition, May 14–15, 2014
Paper Number: SPE-169769-MS
... Abstract The calcium and bicarbonate ions, present in the produced waters in the oilfields, are two major scaling ions in CaCO 3 formation. In the last decade, a lot of studies have been focused on the thermodynamic or kinetics of CaCO 3 formation, including the effects of scaling ions, temperature, pH...
Proceedings Papers

Paper presented at the SPE International Oilfield Scale Conference and Exhibition, May 14–15, 2014
Paper Number: SPE-169758-MS
... temperature by a heating plate (Scholar heating plate, Corning, Tewksbury, MA). After heating to a preset temperature, the solution was transferred to the apparatus and the bicarbonate alkalinity was measured by following the procedures. During the measurement, the apparatus was exposed in room temperature...
Proceedings Papers

Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1413
... Anodic Behavior of Nickel base Alloys in Media Containing Bicarbonate and Chloride Ions Natalia S. Zadorozne, Ricardo M. Carranza and Mabel C. Giordano Depto. Materiales - Comisión Nacional de Energía Atómica Instituto Sabato - Univ. Nac. de San Martín / CNEA Av. Gral. Paz 1499 San Martín...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 20–22, 2009
Paper Number: SPE-121550-MS
... Abstract This paper describes new research into the role and importance of the carbonate/bicarbonate pH-buffer added to formate based well construction fluids along with a newly developed field method for determining buffer concentrations. For many years it has been recommended practice...
Proceedings Papers

Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08265
... Inhibition H2S management co 2 coefficient iron dissolution carbonate-bicarbonate stress corrosion ABSTRACT This project has been concerned with the physical and numerical modeling of the conditions developed under disbonded coatings on steel, with a view to understanding the processes...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07204
... ABSTRACT The inhibition of thiosulphate pitting in 304L stainless steel with bicarbonate was investigated using laboratory scratch testing at constant potentials. It was found that 300 ppm bicarbonate ion provided substantial inhibition of thiosulphate pitting of 304L in papermaking...
Proceedings Papers

Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06506
... to evaluate the combined effect of bicarbonate and chloride ions on the stress corrosion cracking susceptibility of mill-annealed Alloy 22. Tests were conducted in which the solution chemistry, electrochemical potentials, and solution temperatures were varied. Stress corrosion cracking was observed...
Proceedings Papers

Paper presented at the CORROSION 2004, March 28–April 1, 2004
Paper Number: NACE-04201
... materials and corrosion Midstream Oil & Gas Pipeline Corrosion sweep rate well integrity concentration Subsurface Corrosion feco 3 steel sensitivity potential oxidation peak nahco 3 dissolution carbonate bicarbonate solution pipeline steel reaction dilute solution flowline...
Proceedings Papers

Paper presented at the CORROSION 2003, March 16–20, 2003
Paper Number: NACE-03527
...CORROSION FATIGUE AND NEAR-NEUTRAL pH STRESS CORROSION CRACKING OF PIPELINE STEEL IN VERY DILUTE CARBONATE/BICARBONATE WITH AND WITHOUT THE PRESENCE OF HYDROGEN SULFIDE USING THE COMPLIANCE TECHNIQUE R.L. Eadie Nova Research and Technical Centre 2928 16th St. NE Calgary, Alberta T2E 7K7 K.E...
Journal Articles
Journal: Corrosion
Corrosion 58 (07).
Paper Number: NACE-02070584
Published: 01 July 2002
... the first TGSCC observed in the pipelines of TransCanada Pipe Lines, Ltd. in 1985, many other countries such as Italy, Mexico, and Russia have experienced such failures. Intergranular stress corrosion cracking (IGSCC) of pipelines can also occur in highly concen­ 2­ trated bicarbonate-carbonate (HCO3/CO3...
Journal Articles
Journal: Corrosion
Corrosion 58 (04).
Paper Number: NACE-02040329
Published: 01 April 2002
...J.-J. Park; S.-I. Pyun; K.-H. Na; S.-M. Lee; Y.-T. Kho ABSTRACT Effect of oxide film passivity on low-pH stress corrosion cracking (SCC) of API 5L X-65 pipeline steel in bicarbonate solution was investigated using potentiodynamic polarization, optical microscopy, the abrading electrode technique...
Journal Articles
Journal: Corrosion
Corrosion 55 (07).
Paper Number: NACE-99070644
Published: 01 July 1999
... is thought to occur by a localized dissolution process in a carbonate-bicarbonate solution.8-10 To control or prevent SCC, environmental, mechanical, and metallurgical factors should be considered. Among them, the use of a steel resistant to SCC is the ultimate goal for future pipelines. It was reported...
Journal Articles
Journal: Corrosion
Corrosion 55 (04).
Paper Number: NACE-99040380
Published: 01 April 1999
...J.-J. Park; S.-I. Pyun; W.-J. Lee; H.-P. Kim ABSTRACT INTRODUCTION ­ The effect of bicarbonate ions (HCO3 ) on pitting corrosion of type 316L stainless steel (SS, UNS S31603) was investigated in aqueous 0.5 M sodium chloride (NaCl) solution using potentiodynamic polarization, the abrading electrode...
Proceedings Papers

Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98011
..., chlorides, and bicarbonates on corrosion rates of carbon steels in wet, low-flow and stagnant conditions were studied in the four-year program. INTRODUCTION The ability to transport wet, untreated natural gases through pipelines offshore or at other inaccessible locations is an important factor...
Journal Articles
Journal: Corrosion
Corrosion 54 (03).
Paper Number: NACE-98030179
Published: 01 March 1998
... involves formation of Cu(I) and Cu(II) species whose concentration ratio is determined by the electrode potential and the nature of ions dissolved in the electrolyte.1,7-17 Studies carried out in solutions containing carbonate (CO32­)-bicarbonate (HCO3­) ions have revealed the presence of basic copper...
Journal Articles
Journal: Corrosion
Corrosion 54 (02).
Paper Number: NACE-98020155
Published: 01 February 1998
... (CO32­) and bicarbonate (HCO3­) ions, with pH of the liquid in the range from pH 8 to 10;4-5 and -- Within the cracks, black, tightly adherent films of magnetite were found sometimes with iron carbonate. IGSCC in HCO3­/CO32­ solutions occurs in the stricted range of potential (~ ­0.625 VSCE to ­0.425...
Journal Articles
Journal: Corrosion
Corrosion 54 (02).
Paper Number: NACE-98020115
Published: 01 February 1998
... with the pipe surface. Research revealed the SCC was related to an electrolyte composed of an alkaline carbonate-bicarbonate electrolyte.l-3 The aqueous solution used to simulate the field condition for SCC was 1 N sodium carbonate (Na2CO3) + 1 N sodium bicarbonate (NaHCO3) solution (pH ~ 10).4-5 However...

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