The Effect of Metal Ions on Calcium Carbonate Precipitation and Scale Formation

2009 ◽  
pp. 137-146
Author(s):  
Jitka MacAdam ◽  
Simon A. Parsons
Keyword(s):  
Calcium Carbonate ◽  
Metal Ions ◽  
Scale Formation ◽  
Carbonate Precipitation ◽  
Calcium Carbonate Precipitation

scholarly journals Co-incorporation of alkali metal ions during amorphous calcium carbonate precipitation and their stabilizing effect

2019 ◽  
Vol 21 (24) ◽  
pp. 13230-13233 ◽  
Author(s):  
Anders C. S. Jensen ◽  
Henrik Birkedal ◽  
Luca Bertinetti
Keyword(s):  
Thermal Stability ◽  
Calcium Carbonate ◽  
Alkali Metal ◽  
Metal Ions ◽  
Alkali Metal Ions ◽  
Carbonate Precipitation ◽  
Amorphous Calcium Carbonate ◽  
Calcium Carbonate Precipitation ◽  
Stabilizing Effect

Alkali metal ions incorporate in amorphous calcium carbonate and affect its thermal stability.

scholarly journals Models for Calcium Carbonate Precipitation in the Near-Well Zone by Degassing of CO2

2016 ◽  
Vol 9 (1) ◽  
pp. 178-194
Author(s):  
Magnus Wangen ◽  
Jan Sagen ◽  
Tor Bjørnstad ◽  
Harald Johansen ◽  
Alban Souche
Keyword(s):  
Calcium Carbonate ◽  
Numerical Solutions ◽  
Equilibrium Concentration ◽  
Scale Formation ◽  
Analytical Models ◽  
Precipitation Process ◽  
Carbonate Precipitation ◽  
Calcium Carbonate Precipitation ◽  
Porosity Reduction ◽  
Precipitation Regimes

Calcium carbonate scale formation is a well known problem for water producing wells. Although there are several types of scale forming processes, we investigate the case of calcium carbonate precipitation when the degassing of CO2 causes the calcium equilibrium concentration to decrease towards a production well. We study a simplified system of carbonate chemistry, which allows for analytical expressions for the porosity loss as a function of time. The precipitation process normally goes from flow-limited away from the well to precipitation-limited close to the well. We derive an expression that estimates the transition zone between these two regimes. Furthermore, we present analytical estimates for the porosity reduction at a given radius as a function of time, including an estimate for each of these precipitation regimes. These analytical results are tested against numerical solutions for the porosity loss, which account for the full set of equations of the model. The analytical models give an accurate estimate of the linear porosity reduction with time, until at least half the porosity is lost. Examples of scale formation are given for the two regimes. Reasonable values for the precipitation kinetics indicate that most production operations have a kinetics-limited regime close to the well. The models also show that this type of scale formation takes place very close to the wells, typically within a few well radii from the walls of the well.

scholarly journals Density-dependent microbial calcium carbonate precipitation by drinking water bacteria via amino acid metabolism and biosorption

2021 ◽  
pp. 117444
Author(s):  
Xiaoxia Liu ◽  
Gernot Zarfel ◽  
Renata van der Weijden ◽  
Willibald Loiskandl ◽  
Brigitte Bitschnau ◽  
...  
Keyword(s):  
Drinking Water ◽  
Amino Acid ◽  
Calcium Carbonate ◽  
Amino Acid Metabolism ◽  
Acid Metabolism ◽  
Carbonate Precipitation ◽  
Calcium Carbonate Precipitation ◽  
Density Dependent

Ureolysis-induced calcium carbonate precipitation (UICP) in the presence of CO2-affected brine: A field demonstration

2021 ◽  
Vol 109 ◽  
pp. 103391
Author(s):  
Catherine M. Kirkland ◽  
Arda Akyel ◽  
Randy Hiebert ◽  
Jay McCloskey ◽  
Jim Kirksey ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Carbonate Precipitation ◽  
Calcium Carbonate Precipitation
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