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您的检索式：作者名="Bahram ALIZADEH"
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| 1 | Hydrocarbon Vertical Continuity Evaluation in the Cretaceous Reservoirs of Azadegan Oilfield, Southwest of Iran: Implications for Reservoir Geochemistry显示文摘A collection of data obtained from analytical methods in geochemistry along with the reservoir engineering and geologic data were used to investigate the reservoir continuity in the Cretaceous Fahliyan, Gadavan, Kazhdumi and Sarvak reservoirs of the super-giant Azadegan oilfield, SW Iran. The geochemical data indicate that the oil samples, with medium to high level of thermal maturity, have been generated from the anoxic marine marl/carbonate source rock(s). The Sargelu(Jurassic) and Garau(Cretaceous) formations are introduced as the main source rocks for the studied oils. The dendrogram obtained from the cluster analysis of high-resolution gas chromatography data introduces two main oil groups including Fahliyan reservoir, and Kazhdumi along with Sarvak/Gadvan reservoirs. This is confirmed by C7 Halpern star diagram, indicating that, the light oil fraction from Fahliyan reservoir is distinct from the others. Also, different pressure gradient of the Fahliyan Formation(over-pressured) relative to other reservoirs(normally-pressured) show the presence of compartments. The relation between toluene/n-heptane and n-heptane/methylcyclohexane represents the compartmentalization due to maturation/evaporative fractionation for Fahliyan and water washing for other studied reservoirs. Also, the impermeable upper part of the Fahliyan Formation and thin interbedded shaly layers in the Kazhdumi, Sarvak and Gadvan formations have controlled reservoir compartmentalization. | Bahram ALIZADEH Mehrab RASHIDI Alireza ZARASVANDI Seyed Rasoul SEYEDALI Mohammad Hasan ALIEE | 2020 | Acta Geologica Sinica(English Edition)2020，94，3： | 2 |
| 2 | Simultaneous colorimetric determination of morphine and ibuprofen based on the aggregation of gold nanoparticles using partial least square显示文摘In this work a new method is presented for simultaneous colorimetric determination of morphine(MOR) and ibuprofen(IBU) based on the aggregation of citrate-capped gold nanoparticles(AuNPs). Citrate-capped AuNPs were aggregated in the presence of MOR and IBU. The difference in kinetics of AuNPs aggregation in the presence of MOR/IBU was used for simultaneous analysis of MOR and IBU. The formation and size of synthesized AuNPs and the aggregated forms were monitored by infra-red(IR) spectroscopy and transmission electron microscopy(TEM), respectively. By adding MOR or IBU the absorbance was decreased at 520 nm and increased at 620 nm. The difference in kinetic profiles of aggregation was applied for simultaneous analysis of MOR and IBU using partial least square(PLS) regression as an efficient multivariate calibration method. The number of PLS latent variables was optimized by leave-one-out cross-validation method using predicted residual error sum of square. The proposed model exhibited a high capability in simultaneous prediction of MOR and IBU concentrations in real samples. The results showed linear ranges of 1.33–33.29 μg/mL(R^2=0.9904) and 0.28–6.9 μg/mL(R^2=0.9902) for MOR and IBU respectively with low detection limits of 0.15 and 0.03 μg/mL(S/N=5). | Morteza Bahram Tayyebeh Madrakian Sakineh Alizadeh | 2017 | Journal of Pharmaceutical Analysis2017，7，6： | 1 |
| 3 | Wildfire events at the Triassic-Jurassic boundary of the Tabas Basin,Central Iran显示文摘This paper presents organic geochemical evidence pointing to the occurrence of wildfire events at the Triassic-Jurassic boundary in Central Iran.The studied outcrop section(the Kamarmacheh Kuh section)is comprised of the Upper Triassic Nayband Formation which passes conformably into the Lower Jurassic Ab-e-Haji Formation with no sharp boundary.Organic petrographical studies reveal a higher concentration of semi-fusinite macerals and microscopic charcoal at the boundary between studied formations.This observation can be an evidence for widespread wildfire events at the Triassic-Jurassic boundary of the studied area.Following these fires,vast areas of land were exposed for erosion and large volumes of clastic sediments were provided due to increased run-off.This agrees well with previous sedimentological and stratigraphical studies suggesting a major change in the depositional conditions from marine to non-marine at the Triassic-Jurassic boundary of the Tabas Basin.These findings can have important implications about paleo-depositional settings of the studied formations and the nature of the associated organic matter. | Majid Alipour Bahram Alizadeh AmirAbbas Jahangard AhmadReza GandomiSani | 2021 | International Journal of Coal Science & Technology2021，8，5： | 0 |
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