Evaluation of Naturally Occurring Radioactive Materials (NORMs) in Inorganic and Organic Oilfield Scales from the Middle East

Bassioni, Ghada; Abdulla, Fareed Al Sayed; Morsy, Zeinab; El-Faramawy, Nabil

doi:10.1007/s00244-011-9706-7

Cited by 14 publications

(10 citation statements)

References 15 publications

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“…Oil molecules, mainly resins, are adsorbed onto the surface by electrostatic forces due to their high polarity [12,13]. When water is added, it washes away the resins from the calcium carbonate surface.…”

Section: Limestone-crudementioning

confidence: 99%

Wettability Studies Using Zeta Potential Measurements

Bassioni

Taqvi

2015

Journal of Chemistry

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Wettability studies have been carried out on reservoir rocks using different techniques such as the Amott-Harvey method, the USBM method, and the contact angle method, all with limitations. In this study, the wettability is studied by discussing the surface charge using zeta potential measurements. The study relies on the finding that carbonated reservoir rocks, consisting of CaCO3mainly, are positively charged and their surface has the potential to adsorb significant quantities of anions. Moreover, heavy fractions such as asphaltenes are reported to remain afloat depending on dispersive forces present in the oil and its various fractions. Experiments are carried out on aqueous limestone suspension with the addition of crude oil. The experiment is repeated with the use of polymeric inhibitors, A and B. The zeta potential is found to alter depending on the sequence of polymeric inhibitor in oil/water addition. The inhibitor is found to adsorb on the limestone surface, with a net negative charge, causing repulsion between crude oil and the inhibitor and, hence, preventing the deposition of heavy fractions and particularly asphaltenes. This study gives a comprehensive insight on the mechanism of polymeric inhibitor interaction with the surface and the effect of wettability on its performance.

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Section: Limestone-crudementioning

confidence: 99%

Wettability Studies Using Zeta Potential Measurements

Bassioni

Taqvi

2015

Journal of Chemistry

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“…Where C Ra , C Th and C K are the activity concentrations of 226 Ra, 232 Th and 40 K in Bq/kg, respectively [11].…”

Section: External Hazard Indexmentioning

confidence: 99%

Radiological Impact of Natural Radioactivity in White Granite at Um Baanib Area, Southeastern Desert, Egypt

Mahmoud

El-Halim

2019

Arab Journal of Nuclear Sciences and Applications

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In this study, the ground spectrometric surveying shows the distribution of uranium, thorium and their ratios in the studied white granite, which reflect the addition amount of uranium to the granite from the surrounding rocks. The activity concentrations of the natural radionuclides were measured using a highpurity germanium detector (HPGe). The average activity concentrations of 235 U, 238 U, 226 Ra, 232 Th and 40 K were found as (27.01, 83.29, 90.08, 11.59 and 490.75 Bq/Kg) for nine white granite samples obtained from the studied area. The radium equivalent (Ra eq) in Bq/Kg, external hazard index (H ex), radioactivity level index (), the absorbed dose rate (D) and the annual effective dose (AED) in outdoor environment were estimated. The annual effective dose was found to be high for all samples due to high concentration of 238 U in the area under investigation which represent radiological risk for the health of population. The concentrations of major oxides (%) and trace elements (ppm) have been determined by X-ray fluorescence spectrometry. High average value for Na 2 O and Al 2 O 3 which are useful in ceramic's industry, high average values of Sr and Ba are useful to many important industries.

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“…As a measure of quality control, the resolution was checked by determining the full-width at half-maximum (FWHM) for the 1332.47 keV peak of 60 Co, it was did daily with a source SRM4203D-65 of National Institute of Standards and Technology (NIST) whose value was 2.0 keV. (Bassioni et al, 2012;BurciagaValencia et al, 2010;Mehra et al, 2007). …”

Section: Study Area and Activitymentioning

confidence: 99%

“…Soil contains radioactive elements such as uranium (U) and thorium (Th) series elements, and potassium-40 ( 40 K), which are known as naturally occurring radioactive materials (NORM) (Kathren, 1998 Th generate many other radioactive isotopes in soils because they are the beginners of radioactive series (Bassioni, Abdulla, Morsy & El-Faramawy, 2012;Topcuoglu, Türer, Güngör & Kırbasoglu, 2003). Potassium is the 7 th most abundant element in the earth's crust, representing approximately 2.4% of its total weight.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the K is not radioactive, only the mass 40 isotope is radioactive and it corresponds to 0.0117% of natural potassium (Jabbar et al, 2010 , 2000). Moreover, many countries have published their own averages (Bassioni et al, 2012;Dolhań czuk-Ś ródka, 2012; García-Talavera, Mexico uranium deposits are not commercial grade. The State of Chihuahua is considered the most important uraniferous site with 50 natural zones with about 30% of all the uranium of Mexico (Bazán-Barrón, 1978;Burciaga-Valencia et al, 2010;Colmenero-Sujo et al, 2004;Domínguez, Hernández, Arango & Medina, 2006;Rentería-Villalobos et al, 2007;Villalba et al, 2006;Villalba, Colmenero-Sujo & Montero, 2012).…”

Section: Introductionmentioning

confidence: 99%

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