scholarly journals Wettability Alteration in Carbonates: The Effect of Water-Soluble Carboxylic Acids in Crude Oil

2010 ◽  
Vol 24 (5) ◽  
pp. 2974-2979 ◽  
Author(s):  
S. J. Fathi ◽  
T. Austad ◽  
S. Strand ◽  
T. Puntervold
Keyword(s):  
Crude Oil ◽  
Carboxylic Acids ◽  
Water Soluble ◽  
Wettability Alteration ◽  
Effect Of Water

scholarly journals Nephrotoxicological Effect of Water Soluble Fraction of Bonny Light Crude Oil in Wistar Albino Rats

2019 ◽  
pp. 1-9
Author(s):  
Abraham, Chiedozie Nicholas ◽  
J. Udom, Godwin ◽  
C. Patrick-Iwuanyanwu, Kingsley
Keyword(s):  
Crude Oil ◽  
Soluble Fraction ◽  
Water Soluble ◽  
Albino Rats ◽  
Renal Tubules ◽  
Water Soluble Fraction ◽  
Light Crude Oil ◽  
Range Finding ◽  
Effect Of Water ◽  
Wistar Albino Rats

This study evaluated the Nephrotoxic effect of water soluble fraction (WSF) of Bonny Light Crude Oil (BLCO). After preparation of the WSF and a range finding test, the Wistar albino rats were administered three concentrations (25%, 50% and 100%) of WSF of BLCO for 30 and 60days. Data from the study showed that Urea concentration increased significantly (p≤0.05) with increasing dose of BLCO ranging from 14.71 mg/dl in the control to 35.28 mg/dl in the 100% group after 30days and 14.28 mg/dl in the control to 41.08mg/dl in the 100% group after 60days, Creatinine concentration increased significantly (p≤0.05) from 0.22 mg/dl in the control to 0.82mg/dl in the 100% group after 60 days administration while electrolyte (Na, K, Cl) concentration increased significantly (p≤0.05) with increasing dose of BLCO after 60days administration. Histopathological examination of the kidney was characterized by partial partitioning of the glomerular tufts, obliteration of the Bowman’s capsule and distortion of the renal tubules. The findings in this research suggest that WSF of BLCO induced nephrotoxicity.

scholarly journals Effect of Water-Extractable Carboxylic Acids in Crude Oil on Wettability in Carbonates

2011 ◽  
Vol 25 (6) ◽  
pp. 2587-2592 ◽  
Author(s):  
S. Jafar Fathi ◽  
T. Austad ◽  
S. Strand
Keyword(s):  
Crude Oil ◽  
Carboxylic Acids ◽  
Effect Of Water ◽  
Water Extractable

scholarly journals Hematotoxic Effect of Water Soluble Fraction of Bonny Light Crude Oil in Wistar Albino Rats

2020 ◽  
pp. 1-5
Author(s):  
Abraham, Chiedozie Nicholas ◽  
Godwin J. Udom ◽  
Kingsley C. Patrick-Iwuanyanwu
Keyword(s):  
Crude Oil ◽  
Soluble Fraction ◽  
Water Soluble ◽  
Control Group ◽  
Albino Rats ◽  
Water Soluble Fraction ◽  
Light Crude Oil ◽  
Range Finding ◽  
Effect Of Water ◽  
Wistar Albino Rats

This study evaluated the Hematotoxic effect of water soluble fraction (WSF) of Bonny Light Crude Oil (BLCO) in Wistar Albino rats. After preparation of the WSF and a range finding test, the Wistar albino rats were administered three concentrations (25%, 50% and 100%) of WSF of BLCO for 30 and 60days. Data from the study showed that there was a significant decrease (p≤0.05) in PCV values (30.2% in the control group to 17.2% in the 100% group), Hb levels decreased significantly from 9.25 g/dl in the control group to 5.27 g/dl in the 100% group. WBC count decreased significantly from 2932 mm3 in the control group to 136 mm3 in the 100% group and finally RBC count decreased significantly from 241.8E4 mm3 to 567 mm3 with increasing concentrations in the treatment groups after 60days administration. These results suggest that the oral consumption of the WSF of BLCO led to an onset of anaemia which indicates the presence of less than normal concentrations of PCV, Hb and RBC.

Role of Brine Composition and Water-Soluble Components of Crude Oil on the Wettability Alteration of a Carbonate Surface

2019 ◽  
Vol 33 (5) ◽  
pp. 3979-3988
Author(s):  
Mohsen Bahaloo Horeh ◽  
Mohammad Javad Shokri Afra ◽  
Behzad Rostami ◽  
Salman Ghorbanizadeh
Keyword(s):  
Crude Oil ◽  
Water Soluble ◽  
Wettability Alteration ◽  
Soluble Components

A Thermodynamic Model for Low Interfacial Tensions in Alkaline Flooding

1983 ◽  
Vol 23 (01) ◽  
pp. 125-134 ◽  
Author(s):  
Mukul M. Sharma ◽  
T.F. Yen
Keyword(s):  
Crude Oil ◽  
Surface Film ◽  
Experimental Studies ◽  
Intermolecular Forces ◽  
Active Species ◽  
Water Soluble ◽  
Wettability Alteration ◽  
Complex Flow ◽  
Fractional Flow ◽  
Interfacial Tensions

Abstract Many experimental studies have been undertaken to measure interfacial tensions (IFT's) as a function of pH, salinity, temperature, and divalent ion concentrations. This behavior varies from one crude oil to another and is critical in determining its suitability as a candidate for caustic flooding. A model based on a thermodynamic analysis of crude oil/caustic interfaces has been developed that predicts the IFT behavior of such systems. The model accounts for IFT variations with changes in pH, salinity, and temperature by using parameters that must be estimated from a preliminary experimental study. The model predictions compare well with earlier reported experimental results. It is shown that the application of such a model to empirical correlations for residual oil saturations and fractional flow curves enables us to predict the changes in the fractional flow and relative permeability curves for an alkaline flood with self-sharpening fronts if the injection pH and salinity are specified. The basic equations needed to extend this model to account for divalent ions and more complex flow systems are provided in the Appendices. Introduction In the currently available literature on the subject of caustic flooding, divergent views have been expressed on the basic operating mechanism. Johnson' has summarized them into these categories: emulsification with entrainment, emulsification with entrapment, oil phase swelling, disruption of rigid films, wettability alteration, and wettability reversal. All these mechanisms have been studied and written about in some detail. Which one of them predominates in a particular flooding process depends on a variety of parameters like pore structure, injection concentrations, rock chemistry, etc. One fact, however, has emerged undisputed: The alkali reacts with the crude oil in place and generates a surface-active species, in situ, that substantially lowers the IFT and initiates the operating mechanisms. To understand these mechanisms better, we must have a more fundamental understanding of low IFT'S. It is well known that slightly water-soluble salts adsorb on interfaces and cause changes in IFT. Species like surfactants adsorb very strongly at an interface, whereas species like NaCl may actually be excluded from the interface. The presence of adsorbed surfactant molecules, besides lowering interfacial tension, may alter the mechanical properties of the interface--e.g., surface viscosity, surface film thickness, and surface viscoelasticity. As a brief overview. there have been two fundamental approaches to this problem of IFT behavior of liquid/liquid interfaces. The molecular approach involves a statistical mechanical calculation of the intermolecular forces operating at the interfaces between two phases. SPEJ P. 125^

The effect of water-soluble fraction of crude oil on liver of juvenile Rutilus frisii kutum

2009 ◽  
Vol 153 (2) ◽  
pp. S102
Author(s):  
Fatemeh Heidary Jamebozorgi ◽  
Behroz Abtahi ◽  
Eisa Sharifpour ◽  
Jafar Seyfabadi ◽  
Jafar Seyfabadi ◽  
...  
Keyword(s):  
Crude Oil ◽  
Soluble Fraction ◽  
Water Soluble ◽  
Water Soluble Fraction ◽  
Effect Of Water ◽  
Rutilus Frisii Kutum
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