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Advancing sandstone reservoir compressibility prediction:A correlation-driven methodology

Petroleum Research 2024年第2期9卷 273-279页

作者： Tarek Ganat Meftah Hrairi Amr Badawy Vahid Khosravi mohammed abdalla Department of Petroleum Chemical Engineering Sultan Qaboos UniversityP.O.Box 50Al-Khod123MuscatOman Department of Mechanical and Aerospace Engineering International Islamic University MalaysiaP.O.Box 1050728Kuala LumpurMalaysia Reservoir Engineering Section Petronas Carigali SDN BHDP.O.Box 10500088Kuala LumpurMalaysia Department of Chemical and Petroleum Engineering Faculty of EngineeringTechnologyand Built EnvironmentUCSI University56000Kuala LumpurMalaysia Chemical&Petroleum Engineering United Arab Emirates UniversityP.O.Box No.15551Al AinUAE

This study presents a correlation-based approach for predicting the compressibility of sandstone reservoir *** study proposes a matrix of new empirical equations that significantly improve the precision of measuring the pore volume compressibility,with the most optimal fit of results based on a cubic polynomial *** accuracy of the calculations was validated through comparison with actual data using root mean square method,and the suggested correlations significantly enhance the precise prediction of rock compressibility in sandstone *** this study,the source of data collection is consolidated and unconsolidated sandstone from East Asia offshore ***,variations in compressibility with net overburden pressure over the course of the field's lifespan have been *** results demonstrate the application of regression analysis in establishing a network of linkages between independent and dependent *** proposed correlations for consolidated and unconsolidated sandstones offer a remarkable improvement in the accurate calculation of rock compressibility compared to traditional laboratory procedures,with an average error of 2.5%compared to 5-10%for laboratory *** approach of this study offers a cost-effective and time-efficient alternative to remarkedly enhance the overall performance of sandstone reservoirs in the oil and gas industry.

关键词： Compressibility Consolidated and unconsolidated sandstone Rock properties Rock mechanics

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Mechanical performance of cold mix asphalt containing cup lump rubber as a sustainable bio-modifier

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Journal of Traffic and Transportation Engineering(English Edition) 2024年第3期11卷 424-440页

作者： Syed Abdul Ghafar Muhammad Naqiuddin Mohd Warid Norhidayah Abdul Hassan Zulfiqar Ali Jattak Ashraf abdalla mohammed Radwan Faculty of Civil Engineering Universiti Teknologi MalaysiaSkudai 81310Malaysia Department of Civil Engineering Balochistan University of Information TechnologyEngineering&Management SciencesQuettaPakistan Department of Civil Engineering Balochistan University of Engineering and TechnologyKhuzdarPakistan Department of Civil Engineering Faculty of EngineeringUniversity of TripoliTripoliLibya

The road construction industry aims to contribute to the protection of already compromised *** mix asphalt(CMA)is a measure initiated by the road industry to protect the environment and preserve *** having additional benefits,CMA has attracted little attention due to its inferior ***'s performance is enhanced using a sustainable binder bio-modifier,natural cup lump rubber(CLR)is one of *** study evaluated the tensile properties,rutting,moisture susceptibility,and adhesion properties of CLR-modified CMA(CMA-CR).The tensile property was enhanced by 26%due to CLR ***-CR had excellent rutting resistance of less than 2 mm rut depth at 10,000 load cycles,showing 70%improvement compared with conventional *** susceptibility evaluation indicated that CMA-CR had tensile strength ratio(TSR)value of 104%,satisfying the minimum 80%requirement of AASHTO *** also retained more than 96%bitumen *** moisture damage resistance was improved by 12%and 10%in terms of TSR and stripping,*** durability results revealed that the CMA-CR mixture prevented higher mass loss,representing 14%improvement compared with conventional CMA.

关键词： Cup lump rubber Cup lump modified cold mix asphalt Moisture damage Tensile property Rutting Digital imaging

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A gated recurrent unit model to predict Poisson’s ratio using deep learning

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第1期16卷 123-135页

作者： Fahd Saeed Alakbari Mysara Eissa Mohyaldinn mohammed abdalla Ayoub Ibnelwaleed A.Hussein Ali Samer Muhsan Syahrir Ridha Abdullah Abduljabbar Salih Petroleum Engineering Department Universiti Teknologi PETRONAS32610Bandar Seri IskandarPerakMalaysia Institute of Hydrocarbon Recovery Universiti Teknologi PETRONAS32610Bandar Seri IskandarPerakMalaysia Gas Processing Center College of EngineeringQatar UniversityP.O.Box 2713DohaQatar Department of Chemical Engineering College of EngineeringQatar UniversityP.O.Box 2713DohaQatar Mechanical Engineering Department Universiti Teknologi PETRONAS32610Bandar Seri IskandarPerakMalaysia

Static Poisson’s ratio(vs)is crucial for determining geomechanical properties in petroleum applications,namely sand *** models have been used to predict vs;however,the published models were limited to specific data ranges with an average absolute percentage relative error(AAPRE)of more than 10%.The published gated recurrent unit(GRU)models do not consider trend analysis to show physical *** this study,we aim to develop a GRU model using trend analysis and three inputs for predicting n s based on a broad range of data,n s(value of 0.1627-0.4492),bulk formation density(RHOB)(0.315-2.994 g/mL),compressional time(DTc)(44.43-186.9 μs/ft),and shear time(DTs)(72.9-341.2μ s/ft).The GRU model was evaluated using different approaches,including statistical error *** GRU model showed the proper trends,and the model data ranges were wider than previous *** GRU model has the largest correlation coefficient(R)of 0.967 and the lowest AAPRE,average percent relative error(APRE),root mean square error(RMSE),and standard deviation(SD)of 3.228%,1.054%,4.389,and 0.013,respectively,compared to other *** GRU model has a high accuracy for the different datasets:training,validation,testing,and the whole datasets with R and AAPRE values were 0.981 and 2.601%,0.966 and 3.274%,0.967 and 3.228%,and 0.977 and 2.861%,*** group error analyses of all inputs show that the GRU model has less than 5% AAPRE for all input ranges,which is superior to other models that have different AAPRE values of more than 10% at various ranges of inputs.

关键词： Static Poisson’s ratio Deep learning Gated recurrent unit(GRU) Sand control Trend analysis Geomechanical properties

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Naringenin suppresses NLRP3 inflammasome activation via the mRNA-208a signaling pathway in isoproterenol-induced myocardial infarction

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Asian Pacific Journal of Tropical Biomedicine 2023年第10期13卷 443-450页

作者： Ayman Eldourghamy Toka Hossam mohammed abdalla Hussein Amal Abdel-Aziz Samir A.El-masry Environmental Biotechnology Department Genetic Engineering and Biotechnology Research InstituteSadat UniversityEgypt Department of Medical Labs Faculty of Applied Medical Sciences TechnologyOctober 6 UniversityEgypt Department of Biotechnology Faculty of Applied Health Sciences TechnologyOctober 6 UniversityEgypt Molecular Biology Department Genetic Engineering and Biotechnology Research InstituteSadat UniversityEgypt

Objective:To investigate the cardioprotective effect of naringenin against isoproterenol(ISO)-induced cardiotoxicity in ***:Rats were divided into five groups:the normal group,the ISO group(85 mg/kg b.w.);the ISO+naringenin(50 mg/kg b.w.)group,the ISO+naringenin(100 mg/kg b.w.)group and the ISO+propranolol(10 mg/kg b.w.)*** creatine kinase-MB(CK-MB),cardiac troponin T,lactate dehydrogenase,brain natriuretic peptide(BNP),and IL-10,as well as cardiac transforming growth factor-β1(TGF-β1),vascular endothelial growth factor(VEGF)and malondialdehyde(MDA)were *** addition,NLRP3 and mRNA-208a expressions were evaluated by RT-PCR *** examination was also performed to assess cardiac ***:Naringenin treatment significantly decreased plasma lactate dehydrogenase,CK-MB,cardiac troponin T,BNP,and IL-10,as well as cardiac TGF-β1,VEGF,and MDA while increasing p-Akt and superoxide dismutase in ISO-administered *** also reduced NLRP3 and mRNA-208a gene expression ***,naringenin improved ISO-induced cardiac ***:Naringenin attenuates myocardial dysfunction in ISO-treated rats by decreasing oxidative stress and increasing cardiac endogenous antioxidant system,which may be modulated partly by improvement of NLRP3 and mRNA-208a gene expression.

关键词： Naringenin Isoproterenol Myocardial infarction Antioxidants NLRP3 mRNA-208a

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LA-ICP-MS U-Pb zircon geochronology and Hf isotope, geochemistry and kinetics of the Daxigou anorthosite from Kuruqtagh block, NW China

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Chinese Journal Of Geochemistry 2014年第3期33卷 207-220页

作者： YUAN Qian CAO Xiaofeng Lü Xinbiao WANG Xiangdong YANG Enlin LIU Yuegao RUAN Banxiao LIU Hong MUNIR mohammed abdalla Adama Faculty of Earth Resources China University of Geosciences State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Chengdu Center of China Geological Survey

Kuruqtagh block is the best area for Precambrian geology in Xinjiang Autonomous Region, NW China, since it exposed complete Precambrian lithology units. The study of this ancient base will deepen the understanding of the Precambrian evolution of the Tarim Basin. In this paper, we studied the petrology, geochemistry, zircon LA-ICPMS U-Pb chronology and zircon Hf isotope of Daxigou anorthosite(DA) which is located at the northern margin of Tarim craton and discussed the rock formation, tectonic and geological significance. Zircons from the intrusions display oscillatory zoning and high Th/U ratios(0.39–1.35), implying their magmatic origin. Zircon LA-ICP-MS U-Pb dating results indicate that they formed during the Paleoproterozoic age with the weighted 206Pb/238 U average age of 1818±9 Ma, which is significantly different from former's Neoproterozoic age, and is coincidentally identical with its associated syenite granite age within the error range. Studies on petrogeochemistry suggest that DA belongs to medium-sodium peraluminous alkaline type, rich in Pb, La, Th and LILE, and poor in HFSE(Gd, Nd, and Ta). The chondrite-normalized REE pattern is slightly to the right form. The average ∑REE is 317.2×10-6; HREE show moderate fractionation [average LREE/HREE is 14.71, average(La/Yb)N is 24.77; average(La/Sm)N is 3.85, and average(Gd/Yb)N is 3.46]; and the δEu and δCe are not obvious. Their initial Hf isotope ratios and Hf two-stage model ages range from-6.6 to-4.43 and 2.63 to 2.74 Ga, respectively. Taken together, it is suggested that Daxigou anorthosite is a typical volcanic anorthosite and its primary magma could be contaminated by the partial melt Neoarchaean crust and mainly formed in the arc environment, which recoded the tectonic-magma activities response of the Tarim refers to the amalgamation of the supercontinent Columbia.

关键词： LA-ICP-MS 同位素地球化学 U-Pb定年锆石年代学 Hf同位素斜长岩中国动力学

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Analysis of Structural State of 60/40 Brass Cartridge Case (BCC) after Being Exposed to High Pressure and Temperature of Firing

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Open Journal of Applied Sciences 2019年第9期9卷 710-724页

作者： abdalla Saif Eldin mohammed Giad Group Khartoum Sudan

This research presents an experimental and analytical study of the structural state of the 60/40 brass cartridge case, (BCC) after being fired. The oral section of the BCC has the function of confining the gases of firing by expanding against the chamber and sealing the gases. Firing conditions, namely, high pressure and temperature, 3000 bar and 2727°C, respectively, affect performance properties of the (BCC). These are confining and crack strengths. Experimental study was done on the oral section to address these effects on the structural and mechanical properties of this brass. This alloy is a 60% copper (Cu) and 40% zinc (Zn) alloy and has a two-phase structure, alpha, (α) and beta, (β). Using “before and after” comparison approach;performance properties were tested in cartridge cases prepared before and after firing. These properties are hardness, tensile strength, micro-structural and chemical composition. Comparing the tests’ results, after firing demonstrated considerable degrading in performance properties, micro-structural disorder and a remarkable deficiency in the zinc element in the brass structure. This deficiency affects the percentage of beta phase in the alloy which governs the strength of the brass. According to the required properties before firing, it was found that after firing, the brass cartridge case is not qualified for reloading.

关键词： Structural State Brass Cartridge Case (BCC) Deficiency of Zinc Reloading

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利用W/O型乳状液制备脱模油的研究

利用W/O型乳状液制备脱模油的研究

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作者： mohammed abdalla ABDALRAHMAN EASSA 江南大学

学位级别：硕士

研究的目的是制备一种烘焙用W/O型脱模油乳状液产品，通过向该乳状液中添加复合非离子型乳化剂来研究乳状液的稳定性。用水、大豆油、乳化剂组成的W/O型乳状液制备一种低粘度的烘焙用脱模油，具备可喷雾干燥、高物理学稳定性、好的释放... 详细信息

研究的目的是制备一种烘焙用W/O型脱模油乳状液产品，通过向该乳状液中添加复合非离子型乳化剂来研究乳状液的稳定性。用水、大豆油、乳化剂组成的W/O型乳状液制备一种低粘度的烘焙用脱模油，具备可喷雾干燥、高物理学稳定性、好的释放性能、可以淡化焙烤食品表面颜色以及在焙烤温度范围内具有低的烟点等性能。复合乳化剂聚甘油蓖麻油脂肪酸酯（PGPR）/蔗糖酯和PGPR/span40在油水比例为40：50时，均可形成W/O型乳状液。复合乳化剂PGPR/吐温80在油水比例为50：45时，可以形成W/O型乳状液。此外，复合乳化剂聚甘油/蔗糖酯在任一油水比例均不能形成W/O型乳状液，形成的是O/W型乳状液。复合乳化剂聚甘油/蔗糖酯形成的O/W型乳状液具有最好的稳定性，其次是PGPR/span40、PGPR/吐温80，PGPR/蔗糖酯形成的乳状液具有最差的稳定性。复合乳化剂聚甘油/蔗糖酯形成的O/W型乳状液比W/O型乳状液具有低的粘度和烟点。复合乳化剂PGPR/span40因为可以在较高的水分比例下形成W/O型乳状液以及形成的乳状液具有相对较高的稳定性，所以被选出做进一步研究分析。将PGPR (HLB=3)、span40(HLB=6.7)两种亲水和亲油的非离子型乳化剂组合在一起来稳定W/O型乳状液体系，并向体系中分别添加乙醇和硬脂酸钠做进一步的研究。当复合乳化剂的HLB值从3增加到4.48时，W/O型乳状液稳定性随之提高。继续增加HLB值（4.85-5.59），W/O型乳状液的稳定性显著下降。当乙醇的添加量为10wt%时，乳状液的稳定性提高，但是当乙醇含量增加到10wt%以上时，乳状液稳定性下降，相比于没有添加乙醇的乳状液，具有小的粒径和粒径分布。添加少量的乙醇(5-15wt%)对乳状液的烟点无明显影响，高比例的乙醇含量使W/O型乳状液的烟点略微增加。通常，乙醇可以帮助减小W/O型乳状液的粘度。添加硬脂酸钠(0.05-0.2wt%)可以提高W/O型乳状液的稳定性、粘度，降低烟点。当水分含量增加时，乳状液具有高粘度、高烟点和低稳定性。将制备的脱模油与大豆油进行物理性质和粘弹性的比较，发现在没有太大差别。将脱模油涂在模具表面，做出的蛋糕相对于在模具上涂了大豆油后做出的蛋糕更容易从模具中分离，而且表面几乎没有灼烧的颜色。

关键词： W/O型乳状液稳定性表面活性剂硬脂酸钠乙醇粘度烟点

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基于石墨烯电子特性的生物传感应用的探索研究

基于石墨烯电子特性的生物传感应用的探索研究

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作者： HAMZA mohammed abdalla YONES 兰州理工大学

学位级别：硕士

用化学法还原氧化石墨制备石墨烯均匀的悬浮液溶液在碱性条件下中聚合(3-氨基苯基硼酸)(PABA)。由此制备的石墨烯悬浮液,可以稳定存在几个月,在较低的pH下可以转变为聚合状态。石墨烯/单-(6-氨基-6-脱氧)-β-环糊精组成的多层膜的石墨烯... 详细信息

用化学法还原氧化石墨制备石墨烯均匀的悬浮液溶液在碱性条件下中聚合(3-氨基苯基硼酸)(PABA)。由此制备的石墨烯悬浮液,可以稳定存在几个月,在较低的pH下可以转变为聚合状态。石墨烯/单-(6-氨基-6-脱氧)-β-环糊精组成的多层膜的石墨烯片(GS)和单-(6-氨基-6-脱氧)-β-环糊精(NH-β-CD)由两个步骤容易制备。首先,带负电荷的氧化石墨烯(GO)和带正电荷的单-(6-氨基-6-脱氧)-β-环糊精(NH-β-CD)进行逐层(LBL)自组装在玻碳电极(GCE)一层改性的聚(二烯丙基二甲基氯化铵)(PDDA)。然后,石墨烯/单-(6-氨基-6-脱氧)-β-环糊精(GS/NH-β-CD)多层膜的电化学还原氧化石墨烯/单建立-(6-氨基-6-脱氧)-β-环糊精(GO/NH-β-CD)。结合GS高表面积和β-环糊精(β-CD)主动识别位点,GS/NH-β-CD多层膜具有多巴胺的检测性能优异的电化学传感(DA)与一个从2.53到980.05μmol·L非凡的宽的线性范围。这项研究提供了一个简单的路线,以形成的石墨烯为基础的电化学传感器的检测多巴胺(DA)。成功制备了纳米复合材料β-环糊精/石墨烯(β-CD/GS),其在水溶液中具有高稳定性。当使用多巴胺的电化学检测多巴胺,β-CD/GS修饰碳电极具有检出限低,线性范围宽,具有良好的抑制背景电流过量的抗坏血酸的能力。多巴胺在β-CD/GS电极的电化学反应显示了大规模扩散控制的过程,与未改性的石墨烯片吸附控制的过程不同。

关键词： 3-氨基苯硼酸多巴胺石墨烯 β-环糊精生物传感器

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Mutual Adsorption of Lead and Phosphorus onto Selected Soil Clay Minerals

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Advances in Chemical Engineering and Science 2018年第2期8卷 67-81页

作者： mohammed abdalla Elsheikh Pardon Muchaonyerwa Erni Johan Naoto Matsue Teruo Henmi Department of Life Environmental Conservation Faculty of Agriculture Ehime University Matsuyama Japan School of Agricultural Earth and Environmental Sciences University of KwaZulu-Natal Pietermaritzburg South Africa Department of Soil and Environment Sciences Faculty of Agriculture University of Khartoum Khartoum Sudan

Mutual adsorption of lead (Pb) and phosphorus (P) at pH 5 onto three soil clays materials (kaolinite, montmorillonite, and allophane) was studied to know interaction of the anion and the cation at surface of the clays. Adsorption of Pb was determined on montmorillonite, kaolinite and allophane with the following pretreatments;1) untreated clay (control), 2) phosphate treated clay (P-clay) and 3) clay pre-treated with both P and Pb (P-Pb-clay). Adsorption of P was determined on montmorillonite, kaolinite and allophane with the following pretreatments;1) control 2) Pb treated clay (Pb-clay) and 3) P-Pb-clay. The adsorption of Pb on the untreated clays was in the order: montmorillonite > allophane > kaolinite. On allophane and kaolinite Pb adsorption was in the order P-clay > P-Pb-clay > control. For montmorillonite, the trend was: P-Pb-clay = control > P-clay. Phosphorus adsorption was in the order Pb-clay = P-Pb-clay > control for montmorillonite and kaolinite, Pb-clay > control > P-Pb-clay for allophane. The findings suggested that pre-treatment with phosphate increases Pb adsorption on kaolinite and allophane, and decrease on montmorillonite, while pretreatment with Pb increases phosphate sorption on all clays, and both Pb and P increased adsorption on montmorillonite and kaolinite and decrease on allophane.

关键词： Allophane Kaolinite Montmorillonite Mutual Adsorption Lead and Phosphorus

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Right Ventricular Dysfunction in Patients with Acute STEMI, Radionuclide-Based Assessment

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World Journal of Cardiovascular Diseases 2019年第12期9卷 915-929页

作者： Samir El-Hadidy abdalla mohammed Shaaban Alramlawy Waheed Radwan Mohamed Affify Critical Care Medicine Department Cairo Egypt Biophysics Department Faculty of Medicine Cairo University Cairo Egypt

Background: An acute myocardial infarction, particularly one that is large and transmural, can produce alterations in the topography of both the infarcted and noninfarcted regions of the ventricle. Cardiac remodeling after acute myocardial infarction (AMI) is characterized by molecular and cellular mechanisms involving both left and right ventricles. Objective: To study the right ventricular affection in patients with acute myocardial infarction of the left ventricle and treated with primary PCI. Methods: The study was done in the critical care department, Cairo University (in which 2,500 primary percutaneous coronary interventions (PCIs) are done annually). Forty patients with acute ST-elevation myocardial infarction (STEMI) were subjected to primary (PCI), we excluded all patients with RV infarction and patients with pulmonary hypertension. RV function was assessed by first pass radionuclide angiocardiography within 48 hours of admission. Results: Regarding the incidence of right ventricular dysfunction in patients with acute left ventricular STEMI who treated with 1ry PCI, there were 21 patients (52.5%) with RV EF% patients (47.5%) with RV time to peak filling rate (TPFR) > 180 msec. There was a significant relationship between right ventricular dysfunction and duration of ICU stay, impairment of LV systolic function, failure of complete resolution of ST segment elevation, failure of early peaking of cardiac enzymes, occurrence of in-hospital complications and one year mortality. Conclusion: The incidence of right ventricular dysfunction in patients with acute left ventricular STEMI is higher than expected and has a negative impact on their outcome.

关键词： STEMI RV Affection First Pass Radionuclide

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