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Groundwater resources in water-stressed regions, such as the Middle East, face significant challenges due to low precipitation, high temperatures, and elevated evaporation rates, which are compounded by anthropogenic stresses. In this context, Saudi Aramco (the national petroleum and natural gas company of Saudi Arabia) has contributed in the search for potential groundwater sources to ensure an adequate supply of potable water for the country's citizens, agricultural needs, and industrial usage. In this study, we combined geographic information system (GIS), remote sensing (RS) and analytic hierarchy process (AHP) techniques to evaluate the vulnerability of groundwater potential (taking Hail as a case study). With a total of 7 thematic layers (i.e., geology, slope, lineament density, land use/land cover, annual rainfall, drainage density, and soil texture), we found that groundwater potential zones with moderate to high coverage account for 91.9%, which is notably close to the borehole data, with a groundwater potential validation accuracy of 90.0%. The obtained results offer a crucial tool for decision-makers and managers, enabling them to develop timely protection and monitoring measures for groundwater resources. Highlights: This study used RS-GIS + AHP modeling to evaluate groundwater potential. The groundwater potential zones in the Hail region can be classified into three categories. RS-GIS + AHP is a useful tool for analyzing groundwater resource levels. Potential recharge areas were delineated for the Hail region. [ABSTRACT FROM AUTHOR]

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The Great Central Gas Consumers’ Company (GCGCC) was established by the metropolitan middle class to address the detrimental effects of gas industry monopoly through the promotion of market competition. It revealed that the middle class staunchly advocated for the use of liberalism to safeguard their own rights and interests, coinciding with Britain’s wider acceptance of liberalism and echoing the clarion call of the era of liberalism. Government engagement and interference in the formation of the GCGCC, as well as the ensuing disputation around it, could be seen as a manifestation of the principle of liberalism rather than a violation thereof. It reflected that liberalism was neither the absence of government nor total laissez-faire. The fact that the old gas companies adjusted their positions and compromised in favour of liberal principles demonstrated the more flexible response mechanisms of the modern industrial system to industrial and social problems, as well as the significant influence of liberalism on the development of the British industrial sector and society as a whole. [ABSTRACT FROM AUTHOR]

In this study, we analyzed the impact of government regulatory institutions on households' natural gas use behavior and suggested that the conventional view of natural gas as a social utility is inappropriate. Pursuing this goal, we applied correlation analysis, regression analysis and the Granger causality test to assess the statistically significant impact of particular factors (environmental temperature, price and tariff on natural gas) on household gas consumption. Our study was based on the data on household gas consumption in 2019–2022. Ultimately, the lowest rate of influence was recorded by the Granger causality test (2.47%), compared to 6.88% in the test for the significance of the correlation coefficient and 9.23% in the t-test for the statistical significance of the regression coefficients. One has to note that the Granger causality test used in our study is considered the most sensitive model for analyzing economic data. Using statistical methods, we concluded that regulatory factors have a negligible impact on the volume of natural gas consumption by households. Our results suggest that the Ukrainian regulatory authorities should be cautious about using non-market mechanisms, such as price caps, in the energy sector. [ABSTRACT FROM AUTHOR]

The study aimed to identify the role of administrative leadership in developing institutional performance in the Yemeni Gas Company, and to identify the obstacles and difficulties that reduce the effectiveness of administrative leadership in the Yemeni Gas Company. The study used the descriptive analytical approach, and the study population was represented by presidents, deputies, and administrators in the Yemeni Gas Company. A random sample of(118) employees, date was collected using The questionnaire was entered, coded, and processed using statistical packages (spss) software. and the study found a group of the most important are the following:- 1-the study showed that the administrative leadership pays great attention to developing institutional performance in the company Yemeni Gas. 2- The study shows that level of administrative leadership in the Yemeni Gas Company is high. 3-The study showed that the level of performance in the Yemeni Gas Company is high. [ABSTRACT FROM AUTHOR]

Local natural gas distribution companies (LDCs) require accurate demand forecasts across various time periods, geographic regions, and customer class hierarchies. Achieving coherent forecasts across these hierarchies is challenging but crucial for optimal decision making, resource allocation, and operational efficiency. This work introduces a method that structures the gas distribution system into cross-temporal hierarchies to produce accurate and coherent forecasts. We apply our method to a case study involving three operational regions, forecasting at different geographical levels and analyzing both hourly and daily frequencies. Trained on five years of data and tested on one year, our model achieves a 10% reduction in hourly mean absolute scaled error and a 3% reduction in daily mean absolute scaled error. [ABSTRACT FROM AUTHOR]

Goal: for large gas transportation companies, it is of strategic relevance to be compliant with ISO 9001, ISO 45001, and ISO 14001 certifications, acknowledging their Integrated Management System (IMS). Based on this context, the purpose of this study was to propose an action plan to obtain triple certification for a Brazilian natural gas transportation company. Design/Methodology/Approach: the methodology comprised research of applied nature, exploratory and descriptive objectives, qualitative approach, with a single case study investigation strategy, and data collected through triangulation, combining documents, interviews, and field observation. Results: First, an action plan, which enabled the company to achieve triple certification in ISO 9001, ISO 45001, and ISO 14001 standards. Second, a table correlating seventeen IMS elements with technical and academic literature, and guidance documents of the studied company, making it easier to visualize interdependencies. Limitations of the investigation: The main one is the generalization limit of the conclusions, models or theories developed from a single case study, used in this work. These limitations do not reduce the importance of the results found, since the proposed action plan enabled the natural gas transportation company to obtain the desired triple certification. Practical implications: the proposed action plan may support other companies to achieve triple certification. Originality / Value: no research has been identified in the international literature that deals with triple certification for companies operating in the natural gas transportation market, specifically, the correlation of IMS elements with literature references and guidance documents of the studied company. [ABSTRACT FROM AUTHOR]

In the contemporary landscape characterized by heightened competitive pressures, adept maintenance management assumes a pivotal and strategic role in cost mitigation and profit augmentation. This paper applies the risk-based maintenance (RBM) methodology to the hydraulic system of a remotely operated vehicle (ROV) owned by an oil and gas services company. To achieve this, it was necessary to gather information on the system failures, followed by determining the critical subsystems. By analyzing the frequency and severity of identified failures, a risk matrix could be constructed. Using the "5 Whys" technique, an analytical framework was used to uncover the root causes of the failures observed in the handlers and propellant subsystems. Subsequently, a risk matrix is formulated again after the implementation of the RBM and the mitigation measures adopted by the authors to elucidate the discernible impact of the maintenance methodology on improving the availability of the ROV and the incidence of failures outlined in the study. [ABSTRACT FROM AUTHOR]

Tax payment has been a burden to business organizations, but a source of revenue to government. This study therefore, delved into the influence of government-imposed taxes on the profitability of firms, focusing on Nigerian Oil and Gas Companies. The research revealed that the coefficient of petroleum profit tax (PPT) exhibited a positive (11.28640) and statistically significant impact (P=0.0129<0.05). Similarly, the beta value of customs and excise duty (CED) displayed a positive (96.41566) and statistically significant impact (P=0.0013<0.05). On the other hand, the beta value of value-added tax (VAT) showed a negative effect (-706.1630) that was statistically significant (P=0.3117>0.05). In conclusion, this study demonstrated varying effects of government-imposed taxes on firms' profitability, particularly within Nigeria's oil and gas sector. While petroleum profit tax and customs and excise duty exerted positive and significant effects, value-added tax had a negative impact. Consequently, the study recommends a reduction in the value-added tax rate by the Nigerian government to facilitate the enhanced profitability of select oil and gas companies. Additionally, government should intensify its efforts in improving public infrastructural facilities like good access road, adequate electricity supply and security to assist private companies improve their profitability while reducing their expenses which will serve as an incentive and encouragement to enable them pay their taxes promptly and regularly. [ABSTRACT FROM AUTHOR]

Boards of directors play important roles when responding to one of the biggest challenges for companies today: environmental sustainability. Research has mainly been focused on the separate impacts of board structure, composition, and processes on corporate environmental performance. Understanding how these three dimensions of the board, which help to successfully fulfill the board roles, interact in complementary or substitutive ways is crucial for improving companies' environmental performance. Using a fuzzy‐set qualitative comparative analysis on a sample of 86 European‐listed companies in greenhouse gas (GHG)‐intensive sectors, our study shows that board dimensions and the attributes that shape them have complementary or substitutable effects on corporate environmental performance. Specifically, we identified four board archetypes that arise from different configurations promoting environmental performance. Finally, we considered CEO‐Board interaction, showing that both longer and shorter CEO tenures together with certain combinations of board attributes could be linked to higher environmental performance. [ABSTRACT FROM AUTHOR]

The progressive electrification of kitchens that still place gas cookers center stage raises important questions about the relationship between energy, technology, and culinary practices that emphasize the relevance of more deeply understanding past transitions. This research explores material culture and culinary technology, examining the link between culinary practices and the shift to gas usage in Lisbon households during the 1930s. Seeking to understand this Gaztronomy, we analyzed the programs and recipes from the cooking courses sponsored by the main Lisbon gas utility company during the period 1931–1939, considering aspects such as the stages in the energy transition, diffusion of gas stoves and the characteristics of Portuguese culinary literature. The nearly four hundred recipes presented in the cooking lessons featured in these materials highlight the association between the cosmopolitan nature of the proposed selection and the modernity of gas cooking, leading to an attempt to understand the role of this “modern energy” as an inducer of new culinary practices in the domestic and family sphere. Culinary expertise proved to be an appealing and powerful tool for overcoming resistance to change and consumer anxieties over adopting a new fuel, indeed, as observed by the main Lisbon supplier at that time. [ABSTRACT FROM AUTHOR]

The challenges posed by climate change and global warming loom large, necessitating a critical initial step towards the long-term growth and the enhancement of both environmental and operational efficiency. Within the energy sector, renewable energy sources are gaining increasing prominence. Consequently, traditional oil and gas companies (OGC) are undergoing a gradual transformation into comprehensive energy corporations, aligning themselves with energy transition policies. This paper examines two types of efficiency measures—operational and environmental—for the 20 largest OGC during the period of 2010–2019. Secondly, this research aims to explore the effect of the global energy transition on both environmental and operational efficiency. Based on three estimation methods, two estimation steps are used in this research. In the first step, the True Fixed Effect (TFE) model and the Battese and coelli (1995) SFA model are applied to evaluate, measure and compare the environmental and operational efficiency scores. In the second step, the TFE model and GMM approach for the dynamic panel data model are used to explore, evaluate and verify the effect of global energy transition on the environmental and operational efficiency of the largest 20 OGC in the world. The results reveal that the average operational efficiency of major OGC measured using the BC.95 model and TFE model is 66% and 85%, respectively, and the overall average level of environmental efficiency for OGC over a 10-year period is 31% (based to B.C.95 model) and 13% (based to TFE model). Our findings reveal that biofuels, solar and hydropower contribute to promote the operational and environmental efficiency of the largest 20 OGC. However, the analysis suggests that while the global energy transition significantly influences and bolsters environmental efficiency, its effect on operational efficiency among these major OGC remains less pronounced and insufficient. [ABSTRACT FROM AUTHOR]

In this study, two intelligent demand forecasting approaches are used to forecast the spare parts demand in the energy industry. In the first approach, a stacked generalization-based demand forecasting technique that combines traditional time-series forecasting and machine-learning methods is developed. In the second approach, external information (EI) is incorporated into the first one. Thus, the stacked generalization-based demand forecasting technique is used as a base model, and the EI is used to focus on predicting the peak demand; consequently, significant forecast errors can be minimized. A case study of a natural gas liquefaction company is then considered to test the performance of these methodologies. Our results show that the proposed techniques perform significantly better than the previous methods. Compared with the mean absolute scaled error and relative geometric root mean squared error of the company's forecasts, our intelligent demand forecasting approaches yield a 40.07% (36.81%) and 2.07% (3.40%) increase in butterfly-valve demand forecasting (spiral wound gasket) when no EI is used, and a 57.78% (60.41%) and 5.73% (7.36%) improvement with EI, respectively. [ABSTRACT FROM AUTHOR]

Purpose: Geopolitical risks associated with the return of great power politics and growing nationalism have generated new challenges for foreign investors across industries. Oil and gas companies are well acquainted with such risks and have developed strategies to manage them. This paper reviews five of these strategies: divorcing ownership control from operating control in designing collaborative ventures; proactively managing stakeholder relationships; ensuring transparency and communication; diversifying risks while proactively positioning for emerging opportunities; and deliberately planning for exit should such an eventuality arise. Firms outside of oil and gas can draw on these strategies as they navigate the emerging geopolitical context. Design/methodology/approach: This paper reviews five strategies that oil and gas companies can use to manage geopolitical risk: divorcing ownership control from operating control in designing collaborative ventures; proactively managing stakeholder relationships; ensuring transparency and communication; diversifying risks while proactively positioning for emerging opportunities; and deliberately planning for exit should such an eventuality arise. Findings: This study identifies several strategies that oil and gas companies have used to manage geopolitical risks. These tools will be increasingly important in the shifting global political landscape. Originality/value: Drawing on the experiences of oil and gas companies, this study has identified several strategies that companies can use to shield themselves from the risks that are currently emanating from geopolitics. While these best practices originate in the experiences of oil and gas firms, the ability to deftly manage geopolitical risks is becoming an important prerequisite for companies across industries. [ABSTRACT FROM AUTHOR]

In Romania, natural gas production is concentrated in two large producers, OMV Petrom and Romgaz. However, there are also smaller companies in the natural gas production area. In these companies, the deposits are mostly mature, or new deposits have low production capacity. Thus, the production forecast is very important for the continued existence of these companies. The model is based on the pressure variation in the gas reservoir, and the exponential model with production decline is currently used by gas and oil producers. Following the variation in the production of the gas wells, we found that in many cases, the Gaussian and Hubbert forecast models are more suitable for simulating the production pattern of gas wells. The models used to belong to the category of poorly conditioned models, with little data, usually called gray models. Papers published in this category are based on data collected over a period of time and provide a forecast of the model for the next period. The mathematical method can lead to a very good approximation of the known data, as well as short-term forecasting in the continuation of the time interval, for which we have these data. The neural network method requires more data for the network learning stage. Increasing the number of known variables is conducive to a successful model. Often, we do not have this data, or obtaining it is expensive and uneconomical for short periods of possible exploitation. The network model sometimes captures a fairly local pattern and changing conditions require the model to be remade. The model is not valid for a large category of gas wells. The Hubbert and Gauss models used in the article have a more comprehensive character, including a wide category of gas wells whose behavior as evolutionary stages is similar. The model is adapted according to practical observations by reducing the production growth period; the layout is asymmetric around the production peak; and the production range is reduced. Thus, an attempt is made to replace the exponential model with the Hubbert and Gauss models, which were found to be in good agreement with the production values. These models were completed using the Monte Carlo method and matrix of risk evaluation. A better appreciation of monthly production, which is an important aspect of supply contracts, and cumulative production, which is important for evaluating the utility of the investment, is ensured. In addition, we can determine the risk associated with the realization of production at a certain moment of exploitation, generating a complete picture of the forecast over the entire operating interval. A comparison with production results on a case study confirms the benefits of the forecasting procedure used. [ABSTRACT FROM AUTHOR]

The relationship between corporate social responsibility (CSR) and financial performance (FP) has not been thoroughly investigated in the literature. In particular, the nature of the relationship between the two constructs has not been investigated in depth. Therefore, drawing on the resource‐based view and Stakeholder theory, this study theoretically and empirically examined the relationship between economic perspective of CSR and FP analyzing the mediating role of competitive advantage under the empirical settings of the downstream Oil and Gas companies of Pakistan. Based on the 178 responses from the managerial level employees of these firms, the empirical outcomes stands with the assumption of the study that the implementation of CSR in the Oil and Gas industry is economically driven and have a positive relationship with FP, while competitive advantage partially mediates the relationship between economic CSR and FP. The outcomes of the study carry the important managerial and practical implications for Oil and Gas firms which are fallen in the business case. [ABSTRACT FROM AUTHOR]

Based on computational fluid dynamics technology, the effect of hydrogen blending ratio (HBR) on the concentration distribution of leaked gas diffusion in utility tunnels was investigated, and based on this, the explosion characteristics of hydrogen-blended natural gas (HBNG) were studied in an inhomogeneous concentration field. The results showed that the concentration field of HBNG gradually stabilized in the downstream of the leak site, and the peak concentration increased linearly with HBR. When HBR≤5%, a high concentration region above the upper explosive limit is formed inside the gas cloud. This characteristic of the distribution induces secondary combustion in utility tunnels. The maximum flame velocity and steady acceleration distance increase with the increase of HBR. The flame shape is significantly affected by the concentration field distribution. The explosion overpressure induced by the real concentration field created multiple peak structures that exacerbated the explosion disaster complexity. The first overpressure peak at the ends was formed by the superposition of the precursor shock wave and its reflected wave, and those at other locations are caused by the shock waves. However, all maximum overpressure peaks are formed by the superposition of multiple reflections of the explosion wave. The maximum peak overpressure at both ends of the tunnel is higher than that in the middle. The explosion overpressure induced by the inhomogeneous gas cloud is lower than that caused by homogeneous gas cloud under the same volume. The research results can provide an effective reference for the anti-explosion design and risk assessment of utility tunnel. • Characteristics of HBNG leakage and diffusion in utility tunnels were investigated. • Effects of hydrogen blending ratios on leakage and explosion were investigated. • Flame evolution process under real concentration field of HBNG leakage is revealed. • Distribution law of explosion overpressure loads in utility tunnels is revealed. [ABSTRACT FROM AUTHOR]

This research delves into how different structural factors influence employee satisfaction and organizational commitment in three job categories within a prominent public gas company in Romania. The research adopted a multidimensional perspective on organizational commitment and job satisfaction, further enriched by incorporating the propensity for maintaining the status quo. We collected survey data, which included 2,641 respondents from 32 branches of the company across the country and employed the Partial Least Squares -- Path Modeling (PLS-PM) approach with WarpPLS 7.0 for our empirical analyses. The findings highlight the critical role of job satisfaction as a mediator between structural determinants, including organizational, job-related, and individual characteristics, and organizational commitment. Conversely, several predictors appear unsuitable for interventions aimed at enhancing employee satisfaction. Variations in the effects of predictors on organizational commitment across different employee categories off er insights for potential intervention strategies. [ABSTRACT FROM AUTHOR]

The escalating consumption of LPG in Indonesia has prompted the country's National Oil & Gas Company to embark on constructing a new LPG Facility. This paper addresses the imperative to streamline the Front-End Loading (FEL) stage to prevent cost and schedule overruns due to scope creep. The primary objective is to formulate a comprehensive Work Breakdown Structure (WBS) and Cost Breakdown Structure (CBS) for the LPG Facility Construction project, aimed at facilitating accurate cost estimation and scheduling processes for diverse stakeholders. Using the unfolded tesseract theory to analyze stakeholder needs and elucidate the object-oriented WBS, a Multi-Attribute Decision Making (MADM) analysis was conducted. The study concludes that a multidimensional WBS, particularly employing OmniClass, is the optimal choice for addressing the complexities of the LPG Facility Project and meeting stakeholder needs within BIM software. [ABSTRACT FROM AUTHOR]

In the face of escalating global energy demands, the construction and management of pier infrastructure emerge as pivotal challenges, particularly for energy companies like Pertamina Patra Niaga in Indonesia. This paper aims to optimize pier construction management through the implementation of an OmniClass Work Breakdown Structure (WBS), addressing the critical need for standardized project management methodologies in complex, large-scale construction projects. By integrating a multidimensional WBS approach, akin to the hypercube or tesseract model, this study explores the enhancement of project planning, execution, and management. Employing a comprehensive literature review and case study analysis, the research investigates the efficacy of OmniClass WBS in facilitating better project coordination, cost estimation, and risk management. The findings underscore the significant advantages of adopting a standardized, multidimensional WBS, including improved data management and project outcome predictability. This paper concludes that the OmniClass WBS framework not only optimizes pier construction projects but also serves as a model for future infrastructure development endeavors within the energy sector [ABSTRACT FROM AUTHOR]

The development of hydrogen-blended natural gas (HBNG) increases the risk of gas transportation and presents challenges for pipeline security in utility tunnels. The objective of this study is to investigate the diffusion properties of HBNG in utility tunnels and evaluate the effectiveness of various ventilation mechanisms. The numerical simulation software Fluent 2023 R1 is applied to simulate and analyze the leakage of small holes in a HBNG pipeline in the natural gas compartment. By examining the leaking behavior of HBNG through small holes in different circumstances, we aimed to identify the most unfavorable operational situation for leakage. Subsequently, we analyzed the ventilation strategy for sub-high-pressure pipes at various pressure levels in this unfavorable condition. This study's findings demonstrate that blending hydrogen improves the gas diffusion capacity and increases the likelihood of explosion. The primary factors that influence the pattern of leakage are the size of the leaking holes and the pressure of the pipeline. The gas compartment experiences the most unfavorable working conditions for natural gas pipeline leaks when there are higher pressures, wider leak openings, higher hydrogen blending ratios (HBRs), and leaks in close proximity to an air inlet. When the HBR is 20%, the minimum accident ventilation rates for pressures of 0.4 MPa and 0.8 MPa are 15 air changes per hour and 21 air changes per hour, respectively. The maximum allowable wind speed for accident ventilation is 5 m/s, as regulated by China's national standard, GB 50838-2015. This regulation makes it difficult to minimize the risk of leakage in a 1.6 MPa gas pipeline. It is recommended to install a safety interlock device to quickly shut off the pipeline in the event of a leak in order to facilitate the dispersion of the substance. [ABSTRACT FROM AUTHOR]

Australia has a long history of privately owned utility price regulation, one that is little known. This price control was designed to restrain the market power of several utilities (gas, rail, tramways, electricity, and water). The purpose of this paper, therefore, is to establish what types of price control that were used in Australia in the utilities sector before the First World War and to determine the degree to which this price control influenced efficiency. As price levels in this era were set in legislation, the lack of flexibility led to less-than-optimal outcomes, and eventually and led to new approaches were developed after 1912 to the utilities that remained in private ownership, and in some cases influenced the movement in Australia towards government control. [ABSTRACT FROM AUTHOR]

Our main contribution is to identify the risks implied by the existence of prolonged regulatory lags. We hypothesize that a likely first response is to reduce OPEX, increasing efficiency. If the lag persists for enough time, a vicious circle of inefficiency, disinvestment, and reduced performance can follow. We use a regulatory episode affecting natural gas distributors in Argentina as a natural experiment, controlling with other Latin American countries' utilities not exposed to the same regulatory stimuli. We evaluate the relative efficiency of fourteen firms for five countries, in seven years, using Stochastic Frontiers Analysis (SFA). Thus, we perform a regulatory impact analysis (RIA) to assess the consequences on the performance of two idiosyncratic regulatory policy instruments applied in the distribution gas industry in Argentina in the 1998–2021 period (the 2002 Public Emergency Law and the 2016 Integral Tariff Review). [ABSTRACT FROM AUTHOR]

In Indonesia, Customer Relationship Management (CRM) has been widely adopted in many companies, including oil and gas companies (OGC). The CRM implementation was done to improve the company's performance. However, research studying the relationship between CRM and OGC's performance remains limited. Therefore, an in-depth analysis examining the conceptual model of CRM factors is needed so that OGC can understand how to improve its performance through the implementation of CRM. This research describes in detail the conceptual model that shows the relations of CRM factors with OGC performance to obtain the relationship between variables. Partial Least Square Structural Equation Modeling (PLS-SEM) method was used to analyze the model. There are six variables, five hypotheses, and 26 indicators. Results showed that only 4 of the hypotheses are supported. One factor, information technology, results in positive yet insignificant influence, thereby failing to support the hypothesis at hand. With this research, the model is provided for OGC as a reference to improve its performance through CRM implementation. [ABSTRACT FROM AUTHOR]

This article provides a comparative analysis of gas companies in the Iberian Peninsula throughout the second half of the 19th Century. Information was sourced from archives, libraries, and newspaper archives for this study. Specifically, it examines the origins of this sector in Spain and Portugal in the 1840s and the process of consolidation of this industry until the end of the 19th century. The study analyzes the main characteristics of the industry, the companies involved in this business, and the process of introducing gas lighting in these territories. [ABSTRACT FROM AUTHOR]

This article explores the competition between gas and electricity companies in Spain and France from 1890 to 1918 for consumer market dominance, examining the various advertising and commercial strategies employed by companies in both sectors. In addition to assessing the development and evolution of the production and consumption of these two forms of energy in each country, the study analyzes a representative sample of promotional materials (posters, print advertisements, brochures, catalogues, etc.) that marketed a range of appliances and consumer goods powered by either gas or electricity. [ABSTRACT FROM AUTHOR]

Natural gas has been used for heating and production purposes in Turkey since 1987, and every passing year, the natural gas pipeline network continues to expand with investments. The distribution of natural gas within urban areas is achieved through a complex network structure formed by the joining of Polyethylene (PE) and Steel (ST) pipes using various connection elements. This complex structure is susceptible to deformation over time due to various reasons such as corrosion in steel lines, manufacturing errors in connection elements in PE lines, and other factors. As a result, natural gas leaks occasionally occur in these pipelines. The leakage control process in natural gas pipelines is carried out using specially designed equipment and vehicles equipped for this purpose. However, while these systems may be sufficient for collecting the necessary data for leak detection, the complex structure of the distribution network and the necessary data for leak detection, the complex structure of the distribution network and the necessity of performing this process with multiple teams bring about many challenges in terms of tracking, management, and reliability of the operation. At this point, the advancement of GIS (Geographic Information System), mobile, and communication technologies has made it possible to overcome these challenges. In this study, a real-time GIS-supported leak detection system developed using these technologies for Başkent Natural Gas Distrubition Inc. (Başkentgaz), which provides natural gas distribution services in Ankara, has been described. The study discusses the benefits brought by this system to the natural gas leak detection process. [ABSTRACT FROM AUTHOR]

With the development of economy, the utilization rate of natural gas in urban areas increases year by year, and so does the incidence of gas events. Therefore, it is very important to set the location of duty points reasonably. The selection of duty points is related to the distribution of emergency needs. However, most of the existing emergency facility site selection methods divide the entire area into grid forms and use GIS software for site selection, ignoring the rationality of regional division and the randomness of natural gas events in the distribution of the entire demand space. This paper uses Birch clustering algorithm for spatial clustering based on the consequence characteristics of natural gas events and relevant historical data. Considering the randomness of urban transportation and gas events, the opportunity constraint model of gas company duty point under uncertain environment is constructed, and the demand weight is determined combined with the pipeline hidden danger risk assessment level. The SA algorithm with global optimization ability and PSO with random search ability were used to solve the model under different risk coefficients, and the optimal position of the guard point was obtained. By comparing the experimental data with the mean value model and the P-median model, the model established in this paper is more suitable for the actual environment and has advantages over other models. [ABSTRACT FROM AUTHOR]

The potential of clear hydrogen to develop into a valuable resource in the future is becoming a growingly attractive debate topic, in the context of a targeted decarbonized economy. The present article analyses the interest that institutional and corporate actors in the European Union and the United States dedicate to this subject by assessing the comprehensiveness of the official, governmental communication and that of private actors - focusing on gas transmission companies, either producers or transporters - on the exploitation of clear hydrogen. The aim of the research is to investigate where is currently the most visible attention manifesting and whether public institutions or the private sector are more engaged in bringing about change in the near future in the field of green transition. [ABSTRACT FROM AUTHOR]

Oil and gas (O&G) companies, as key players in the contemporary global energy landscape, have evolved within the context of a dynamic interaction between states and markets. However, their role is being transformed radically by two successive "global shifts": economic globalization—driving energy demand growth patterns—and climate change—driving energy system transformation and decarbonization, both of which require them to reconsider their business strategies. Using an interdisciplinary lens that draws on human geography, strategy and international business, and international political economy, we propose an integrated conceptual framework for two periods—the 1990s–early 2010s and the post‐Paris Agreement era—to explore the nature of strategic responses by O&G companies to these global economic and environmental shifts. We illustrate the linkage of O&G companies' two strategies of (re‐)globalization and decarbonization by the aspects of production, finance, and knowledge as internal structures. Energy security is one of the priorities in the macro external environment. It is becoming increasingly difficult for O&G companies to deal with current dilemmas: climate goals require a significant reduction in fossil fuel production and consumption, and pressures from governments, nongovernmental organizations, and investors threaten the long‐term survival of O&G companies, while fossil fuel demand will remain high in the short to medium term. At the same time, the post‐pandemic recovery and Russia's war in Ukraine are resulting in a re‐assessment of the benefits of unfettered globalization. Therefore, global O&G companies face dual challenges in the new era of (re‐)globalization and decarbonization and need to make changes to ensure their future viability. This article is categorized under:The Carbon Economy and Climate Mitigation > Decarbonizing Energy and/or Reducing Demand [ABSTRACT FROM AUTHOR]