Wettability is a key concept in petroleum engineering, referring to the ability of a fluid (such as oil) to adhere to and maintain contact with the surface of reservoir rock. Wettability alteration is a complex concept, and various methods and techniques may be employed depending on the specific conditions and characteristics of each reservoir and the oil it contains. In general, it may be affected by several factors like reservoir pressure, reservoir temperature and reservoir fluid composition. In general, changes in wettability can involve the factors like pressure, temperature and fluid content composition. By considering the changes in oil wettability, petroleum engineers can implement various strategies and techniques in reservoir engineering and production operations to mitigate the adverse effects of wettability or leverage wettability changes to enhance oil production. In this paper, reservoir rock wettability analysis of a studied geological formation will be explained and discussed by using available data from several reservoir selected cores.
Sequence stratigraphy deals with the formation and evolution of sedimentary sequences in space and time. Today, the evolution of this concept has found increasingly widespread application in geological studies, including basin analysis and reconstruction, the study of paleo-depositional environments, stratigraphic concepts, and petroleum exploration. The primary factors controlling the structure, geometry, and characteristics of sedimentary sequences can be summarized as accommodation space and sediment supply. Sequence stratigraphy is the study of sedimentary units that are genetically related and bounded by unconformities or their correlative conformities. Depositional sequences have been developed during of growth and demise of several carbonate platform. Paleontology and sedimentology of the Oligo-Miocene of studied formation was investigated in the cored wells. As a result of biostratigraphic analyses, the studied formation is Chattian to Burdigalian in age. In this paper, based on sedimentological and biostratigraphic studies in cored wells, wireline log data and Sr isotope dating, sequence stratigraphy of the studied formation is analyzed and has been discussed.
Biostratigraphy is a branch of geology that examines the origin, sequential order, structure, fossils, lithology, and age of the rocks and strata of the Earth. Biostratigraphy plays a significant role in identifying and characterizing changes in sedimentary units during the evolution of a sequence. Key applications include determining water depth fluctuations throughout the sequence's development, identifying paleo-depositional environments, assessing changes in facies depth across the sequence, and correlating sequence units between different regions. Sedimentology is a branch of geology that deals with the characteristics of sediments, sedimentary processes, and sedimentary rocks deposited in sedimentary basins. The ultimate goal of sedimentology is to understand the conditions that acted upon sediments and sedimentary rocks during their transport and deposition within the sedimentary basin. The studied formation in the basin shows well-defined biostratigraphic subdivisions. Lithologically, this formation consists of carbonates with intervals of sandy dolomite and streaks of evaporite and shale. In this paper, biostratigraphy and sedimentology of a studied geological formation will be discussed.
Plastic-derived pyrolysis oil has attracted increasing interest as a potential circular feedstock for chemical recycling applications. However, variations in feedstock composition, contamination level, and process conditions may significantly influence the physicochemical characteristics and industrial applicability of the resulting liquid products. Therefore, reliable characterization methodologies are essential for supporting quality assessment and future upgrading strategies.
This work proposes a multianalytical characterization approach for pyrolysis oil obtained from plastic waste thermal conversion. Chromatographic, spectroscopic, and elemental analyses are employed to investigate chemical composition, functional characteristics, and the presence of inorganic contaminants. The proposed methodology includes the evaluation of hydrocarbon-related fractions, oxidation-associated signatures, and contaminant profiles relevant to chemical recycling and industrial processing.
The study aims to contribute to a better understanding of pyrolysis oil characteristics and to support future quality assessment strategies for advanced recycling applications. The proposed approach also seeks to establish a broader analytical framework for evaluating circular feedstocks derived from plastic waste conversion processes.
This study outlines a concept for improving a power-to-gas (P2G) system through the implementation of highly efficient high-temperature electrolysis combined with a molten carbonate fuel cell (MCFC) as a CO2 capture unit for a power plant. Laboratory scale experiments demonstrate that the MCFC could be used for CO2 separation, opening the way to capture of CO2 from flue gases at coal-fired power stations, while maintaining both high electric efficiency and a high CO2 separation factor. Improved energy efficiency can be achieved by the lower electricity requirement of high temperature electrolysis compared to other technologies. Results obtained from experimental investigations show that a CO2 separation rate in excess of 90 % is achievable through adjusting the cathode inlet flow. It should be noted that flue gas must be mixed with air before delivery to the MCFC. Controlled flow of inlet gases to the anode can raise electric efficiency to above 35 % for both laboratory-size and full-scale MCFC. The benefits of the concept are manifested by lower power consumption of the system and no energy penalty for the CO2 capture process. Additionally, the system enjoys good thermal management because all devices run at elevated temperatures (Sabatier reactor at 300 °C, MCFC at 650 °C, solid oxide electrolyzer at 700–800 °C). The proposed improvements increase the system's competitiveness relative to alternative P2G systems and reduce the price of substitute natural gas. Secondly, it will eliminate the consumption of heat from the host coal-fired power plant. Thirdly, the entire system will be more straightforward, compact, and modular, allowing any future scale-up to be implemented without technological difficulties. Finally, the amount of energy required to produce hydrogen will decline by around 25 %.
The global push toward net-zero carbon emissions requires an unprecedented transformation of the transport sector—historically one of the most stubborn contributors to global greenhouse gas emissions. While national strategies rely heavily on rapid fleet electrification and active mobility expansion to reach climate targets, scaling these interventions introduces complex structural, technological, and socio-economic challenges. This keynote address explores the multidisciplinary roadmaps needed to achieve deep decarbonization in urban and suburban transport, highlighting the critical intersection between mobility demand, energy infrastructure, and policy execution.
A primary hurdle in the clean-energy transition is the structural bottleneck created by rapid Electric Vehicle (EV) adoption. As private fleets, commercial transport, and public transit transition from internal combustion engines to electric powertrains, the spatial and temporal demand for power surges. This presentation examines high-resolution data frameworks and predictive modelling used to map EV adoption trajectories against localised electrical grid capacities. Special attention is given to the rural-urban fringe, where long commuter distances drive high energy demand, yet distribution networks face severe capacity constraints. Mitigating these risks requires integrating smart-charging protocols, vehicle-to-grid (V2G) technology, and localised renewable energy storage to balance peak loads without imposing prohibitive infrastructure costs.
Beyond electrification, achieving net-zero mobility demands a fundamental reduction in overall transport energy demand. This address highlights the socio-economic impacts of traffic congestion and evaluates demand-management strategies, including Transit-Oriented Development (TOD), dynamic road pricing, and active travel infrastructure. Drawing on recent empirical evidence and large-scale commuter impact studies, the talk illustrates how congestion inflicts substantial economic and well-being costs on urban populations, underscoring the urgent need for integrated public transit investments that offer viable alternatives to private car dependency.
Finally, the presentation addresses the critical role of evidence-based policy formulation and public engagement. Translating complex transport models into actionable governance requires bridging the gap between academic research, infrastructure providers, and policy makers. Lessons learned from direct advisory engagement with national transport authorities and civic assemblies demonstrate how rigorous data modelling can shape equitable, resilient, and politically feasible transit strategies. By addressing power grid limitations, urban planning, and consumer behaviour simultaneously, this keynote outlines a comprehensive framework for building sustainable, low-carbon transport ecosystems for the future.
The frequency and distribution of recognized facies has been investigated in a studied formation and was analyzed based on illustration of pie diagrams and sedimentological logs. Based on thin section analysis, fifteen depositional facies have been recognized in the cored sections of studied formation in wells 1 and 2. Detail petrographic investigations show that these facies is mainly composed of red algae, coral debris, echinoid fragments, large hyaline benthic foraminifers (especially Rotalia viennoti), bryozoan and also pelagic forams in the lower parts and porcelaneous foraminifers (Miliolidae family), both red and green algae, mollusks, small hyaline foraminifers and ostracod in the middle and upper parts. The presence of clastic materials is common in the upper half of the formation and they forms sandy dolomite facies in some intervals. A sedimentary facies is defined as the assemblage of lithological and paleontological characteristics that distinguishes a specific sedimentary unit from others. In other words, it is the variation in these properties that gives rise to changes in facies.
The studied reservoir formation is one of the important reservoir formations, located in the folding belt along the offshore sections. Preliminary estimates about the amount of its oil reserves, shows this field has 8 billion barrels of oil in place, which currently its average producing rate is 80,000 barrels per day. The geological structure of this reservoir is in the form of an asymmetric dome, which includes the two productive formations. This reservoir is a fractured reservoir with low porosity and permeability, in which three different reservoir rocks have been identified. Production from this layer has been started with an initial temperature of 290 oF and an initial pressure of 5111psi. Currently, its pressure has been decreased to 4120 Psi. The carbonate material of this formation along with the presence of a dense network of fractures and the relatively low permeability of the matrix part, make this reservoir as a possible suitable candidate for using smart water injection method. Injection of water with optimum salinity and ionic composition percentage (smart water) is mainly used in oil-wet reservoirs. Changing the wettability of the matrix rock, followed by a decrease in residual oil saturation in the matrix is known as the main mechanism of smart water performance.
Formation reservoir static modelling can be used to evaluate the hydrocarbon production potential of the studied formation and to generate a firm “Master Development Plan” based on a simulation model that would help us for our future planning objectives for further developments of studied reservoir formation. The main objective of this paper is to investigate the geology of studied reservoir formation and its 3D static modelling by using the structural geophysics maps. A structural model was generated from top of the studied formation to top of the lower formation using seismic interpreted horizons, faults, and well data. In reservoir characterization studies, a more exact property model has been generated using the additional data such as electro-facies and the final petrophysical evaluated logs. In this research, software was used to make the geological model. The activities related to this geological modeling are: input data, structural modeling, property modeling, volumetric calculation, volumetric sensitivity, volumetric uncertainty and model up-scaling.
Reservoir zonation is one of the most important tasks to be done in a reservoir study. In order to divide a reservoir into distinct zones, criteria such as sequence stratigraphy, lithology, facies, static reservoir properties (e.g. porosity), dynamic data, etc. are to be usually considered. The main benefit of zonation is the segregation of intervals with different reservoir qualities (in a vertical direction), which may show different performances in production. Reservoir zonation is usually done based on well log data (especially GR, DT, NPHIE, and RHOB). In this research, well correlation process was carried out based on wire line logs, graphic well logs, and sequence stratigraphy studies. Stratigraphically, the studied formation has been divided into lower, middle and upper parts. The studied formation contains limestone, dolomitic limestone, argillaceous limestone and slight sandstone as well asthin layers of anhydrite. In this paper, based on geological studies on cored wells and other data, reservoir formation zonation of the studied formation is analyzed and has been discussed.
Structural Geology deals with the study of the shape, arrangement, and internal structure of reservoir rocks.Studied formation is one of the largest structural anticline. This anticline shows a complex structural style in different parts. The studied formation is comprised of Passive Group rocks. This Anticline is a slightly asymmetric fold in the south-eastern part. In contrast, towards the north-western plunge, the anticline is an asymmetric fold with short south-western flank (forelimb) and long north-eastern flank (back limb) in the surface; therefore, the main part of its outcrop belongs to the back limb. The recent deposits cover the south-western syncline in this part. In the south-western flank of the anticline, a thrust fault has located the upper formation over the younger units. Using the seismic and well data, different faults were detected on the studied reservoir formation. Based on structural properties, the faults are divided into thrust and back thrust faults, normal faults and tear faults.
Smart water injection, by optimizing the ionic composition and salinity of the injected water, it is possible to purposefully influence the wettability alteration process and implement enhanced oil recovery operations in reservoirs containing significant amounts of trapped oil, so, it is a promising method for enhancing the oil recovery factor. Carbonate rocks, which are highly complex, constitute a significant portion of reservoir rocks. The primary challenge in oil production from carbonate reservoirs—and a factor that reduces the ultimate crude oil recovery rate—is the phenomenon of substantial oil retention within the rock. The smart water injection method for enhanced oil recovery involves the use of advanced technologies and techniques designed to optimize water injection performance in oil fields. Optimizing smart water for maximum efficiency is one of the most important issues in oil fields. In this paper, smart water injection in a carbonate reservoir and its effect on oil recovery has been discussed.
Rural homes cooking service in Kenya is one of the most energy-intensive activities but, often relying on harmful polluting fuels. Moreover, every clean cooking system in the market is built for the elite, not for the rural poor. From some non-food indigenous tree leaves, I am refining a clean fuel solution that will transition rural households to cheap cleaner in-house air home cooking stoves, rural economic empowerment, infrastructural development, and climate. I used experimental techniques i.e. hydrothermal juice extraction, starter culture inoculation, fermentation, distillation, chemical analysis & functionality tests to formulate the technology concept. The wild tree leaf contains 81.7% carbohydrates than corn 69.1%. I employed Saccharomyces cerevisiae inoculant for fermentation. Macerating, juice extraction, fermentation & fractional distillation equipments were employed. The fuel burns clean at our lab. Key activities were; Leaf collection, sugars extraction, fermentation, distillation and product packaging. Alcoholmeter was used to determine purity at our lab level. Chemical analysis was done by KEBS; flash point, calorific value etc. were determined. ‘Cedrast’ market segmentation; .Transportation, clean home cooking stove, Power Generation, Food & Beverages, Industrial, and Medical. I produced 300mls of 87%v/v pure clean burning liquid from one kilo of the leaves. This initiative aims to catalyze a Competitive Sustainable Bioethanol fuel production venture locally globally, for the people and planet through replication. Certification will be done by KEBS and, the SGS International for international markets. I call for solidarity with like-minded stakeholders to assist in refining this idea, steering fuel grade ethanol commercial production at global scale.
References:Brazil's transition to Net Zero is reshaping the planning, operation, and investment strategies for the long-term development of its Interconnected Power System. This lecture will examine the reliability risks and resilience challenges that arise from the exponential growth of renewable energy sources. The discussion will focus on increased system complexity, reduced flexibility, and evolving operational requirements. It will also address the technical, regulatory, and institutional challenges of maintaining security, adequacy, and flexibility in a rapidly changing power sector. The talk will provide insights into the opportunities and risks associated with ensuring a more secure and sustainable energy transition in Brazil.
Wettability is a key concept in petroleum engineering, referring to the ability of a fluid (such as oil) to adhere to and make contact with the surface of reservoir rock. It indicates the extent to which oil adheres to or occupies the reservoir rock and can influence production and reservoir management.In petroleum engineering, wettability alteration refers to a change in the wettability characteristics of the oil-rock system. Such changes can be driven by various factors, including the physical and chemical properties of the reservoir and the oil, reservoir rock characteristics, and operational conditions. Given the changes in oil wettability, petroleum engineers can implement various strategies and techniques in reservoir engineering and production operations to mitigate the detrimental effects of wettability or to leverage wettability changes to enhance oil production. In this paper, wetting conditions in carbonate rocks of a geological formation and influencing factors on the degree of wetting of carbonate rocks have been discussed.