bluuebunny/crossref_metadata_2025 huggingface dataset:
Imagining Justice and Cancel Culture Through Iris Murdoch’s “enchanter” Characters
Authors: Reilly Tracy
Published: February 2025

In The Judicial Imagination: Writing After Nuremburg, Lyndsey Stonebridge weaves a multi-faceted reminiscence of how twentieth-century literary and philosophical authors like Hannah Arendt, Rebecca West, and Iris Murdoch “forge[d] new literary idioms of judgment in their post-war encounters with the law.”

Lyndsey Stonebridge, The Judicial Imagination: Writing After Nuremberg 3 (2014).

Living and writing during the Nazi war crime trials, these astute female authors gave unique voice to the unprecedented juridical dilemmas of their time. Presciently, they each sensed an entire new world whose inhabitants were quite literally unable to imagine a form of legal justice adequate enough for the unspeakable crimes against humanity that the Adolf Eichmann and Nuremburg courts were attempting to adjudicate. In this article, which is an interdisciplinary examination of how literature can reveal solutions to the problems faced both in law and our broader societal forms of justice, I will examine how one of these writers—British novelist Dame Iris Murdoch—imagined this new genre of post-war evil as emanating principally from the acts of her characters in the everyday modern world. I will show how Murdoch saw modern evil not only as existing in the intentional acts of the murderous tyrants and dictators of the twentieth century, but also within our day-to-day egoistic actions in which we routinely—and largely unconsciously—fail to pay attention to the lives and needs of other people. My aim is to demonstrate how today’s extra-juridical trend known as “cancel culture” is a direct consequence of the inattention and lack of love we often exhibit towards others, which Murdoch repeatedly decried in her literary and philosophical works, as well as a continued failure in our contemporary ability to imagine this modern brand of evil and the appropriate methods of justice for its consequences. By applying Murdoch’s metaphysics regarding both the individual and collective task of achieving true moral growth—as exemplified by the complex plots, themes, and evil “enchanter” characters in her novels—to the trend of cancel culture, one can achieve an historically informed understanding of why the practice is alluring yet ultimately dangerous to both the legal system and our contemporary societal structure writ large.
Destructive Actionality in the Ethnopolitical Context (exemplified by the Semantic of the Set Phrase Crusades)
Authors:   Bryansk State University named after I.G.Petrovskiy, Korenkova S.
Published: February 2025

This article deals with the metaphorical projection of destructive actionality in the ethno-political processes. Such projection is revealed by geopolitonyms, since they contain charac­teristics of several spheres at once: tolerance, ideology, mentality, history, etc. The purpose of this work is to reveal the metaphorical formations of destructiveness in the ethno-political space by the example of the stable expression crusades. The subject of the study is the peculiarities of the manifestation of the destructive semantics of actionality in the ethno-political code of culture as a result of the modification of the historically es­tablished metaphorization. Based on the linguistic and cultural analysis of phraseological units, the applied research method reveals the semantic actionality of destructiveness in the eth­no-political space. Analyzing the image of destructive actional­ity in the ethno-political space, metaphorical projection is observed in terms of expression. The study allowed us to identify a modification of the metaphor of the historically formed associative image of the steady turnover of the Crusades. The results of the study can be tested in the framework of linguistics courses and are given in teaching/methodological manuals.
PERAN TRUST DALAM MEMEDIASI PENGARUH SOCIAL MOTIVATION TERHADAP ONLINE PURCHASE INTENTION
Authors: Tirtawati Ida Ayu Agung , Oktora I Gede Nandya , Ekawati Ni Wayan
Published: February 2025

Online purchase intention is consumer behavior that shows the intention to buy a product online. Online purchase intention can be influenced by two variables, namely social motivation and trust. The purpose of this study is to explain the role of trust in mediating the effect of social motivation on online purchase intention. This study was conducted on Skintific consumers in Denpasar City by distributing questionnaires online to 110 respondents. The questionnaires instrument in this study used a Likert scale. The analysis technique used was path analysis. The result of the study showed that social motivation has a positive and significant influence on online purchase intention; social motivation has a positive and significant influence on trust; trust has a positive and significant influence on online purchase intention; and trust has a positive and significant influence in partially mediating the effect of social motivation on online purchase intention. The implications of this study are expected to provide input to Skintific to utilize aspects of social motivation and trust as a strategy to increase online purchase intention of Skintific consumers in Denpasar City.
FAKTOR PENENTU KESEJAHTERAAN ROHANIWAN HINDU DI BALI (STUDI KASUS IDA PANDITA MPU)
Authors: Ayuningsasi Anak Agung Ketut , Sukadana I Wayan
Published: February 2025

Analysis of the well-being of clergy has not been widely conducted. The existence of Hindu clergy, especially Sulinggih, is important in religious activities in Bali. The fact that Sulinggih in Bali are married clergy (Wiku Grhasta), but with limited economic space for movement, directs this study to analyze the determinants of their well-being. The subjects in this study were Sulinggih who came from the Pasek clan (Ida Pandita Mpu). This study used a quantitative approach and was conducted using a survey method by distributing questionnaires to 161 respondents. The sampling technique in this study used saturation sampling. This study uses descriptive analysis, exploratory factor analysis, and regression analysis. Based on the factor analysis, it was concluded that there are three factors that determine the well-being of Ida Pandita Mpu in Bali, namely non-physical functionings, physical functionings, and economic functionings. The well-being of Ida Pandita Mpu in Bali is significantly determined by only the non-physical functionings out of the three. This study supports the notion of functioning, which is a measure for attaining individual well-being, which is one of the ideas of Amartya Sen's theory.
ANALISIS KEBUTUHAN TITIK LAMPU UNTUK PENERANGAN OPTIMAL DI DAERAH WISATA DESA LES
Authors: Putri Siswanto Fagita , Putra Winaya Ida Bagus , Resa Guna Winangun Nyoman Gede , Gunantara Nyoman , Sukerayasa I Wayan , Arsa Suyadnya I Made , Mataram I Made , Dharma Agus , Dyana Arjana I Gede
Published: February 2025

Optimal lighting in tourist areas is a crucial factor in enhancing visitor comfort and safety, especially during the night. This study aims to calculate the required number of light points in Les Village, a developing tourist area, to achieve optimal lighting. Based on the calculations, 54 light points are needed to illuminate the area. Each light point uses a 5-watt LED lamp, selected for its energy efficiency and ability to provide adequate illumination. The placement of the light points was determined by considering the even distribution of light, reducing dark areas, and supporting the aesthetics of the surrounding environment. This study is expected to serve as a reference for planning lighting systems in other tourist areas with similar characteristics.
RANCANG BANGUN PEMBANGKIT LISTRIK TENAGA MIKROHIDRO DENGAN PEMANFAATAN ALIRAN ANAK SUNGAI MENGGUNAKAN CONTINUOSLY VARIABLE TRANSMISSION
Authors: Lanang Legawa I Nyoman , Indra Partha Cokorde Gede , Janardana I Gusti Ngurah
Published: February 2025

ndonesia has set ambitious targets to increase the share of renewable energy in its energy mix, with Micro-Hydro Power Plants (PLTMH) being one of the renewable energysolutions. This study focuses on developing a PLTMH utilizing the flow of the Tukad Sungitributary in Banjar Ganter, Desa Abian Tuwung, employing a Continuously Variable Transmission(CVT) as the transmission mechanism between the turbine and generator. A water flow rate of0.44 m³/s was capable of generating up to 8.580 kW, while a flow rate of 0.026 m³/s was used toproduce a hydraulic power of 484.12 watts and a generator output of 313.227 watts. Testingrevealed a decrease in turbine speed from 527.88 rpm to 315.8 rpm (40%), while the generatorspeed increased from 315.8 rpm to 1509.8 rpm (378%). Although the CVT improved generatorspeed, the system efficiency decreased due to the inability of the CVT to stabilize rotations andthe occurrence of v-belt slippage caused by water splashes. The reduction in turbine speed andinsufficient torque indicated that the CVT's performance was not significantly different from thatof conventional pulley systems.
Air Quality: Case Study in Civil Construction
Authors: Pereira Júnior José Carlos , Finzer José Roberto Delalibera
Published: February 2025

Objective: The objective of this study is to investigate the quality of atmospheric air in the construction industry environment, with the aim of reducing the levels of pollutants dispersed in the atmosphere, improving the quality of the air and the life of the worker.
 
 Theoretical Framework: In this topic, the main concepts and theories that underpin the research are presented. Dust, gases and particulate matter stand out. Based on literature and references such as: CONAMA and CETESB, there are recommended tolerance limit levels, providing a solid basis for understanding the context of the investigation.
 
Method: The methodology adopted for this research involves measuring the air in the construction environment on alternate days, activities performed and work exposure. Workers at construction sites were evaluated while performing different work activities, highlighting their work routine to identify and identify harmful chemical contaminants. Data collection was performed using devices, the JD-3002 Air Quality and air sampling pumps with an electronic laminar flow sensor from the Gilian brand, model BDX-II. The devices were set up at the construction site on alternate days. Air conditions were collected and recorded and sent to the laboratory. The laboratory analysis followed the MDHS 14/3 procedure – Gravimetry.
 
 Results and Discussion: The results obtained revealed the levels of impurities in the air, as well as their quantification. The parameters measured and identified showed variations in relation to the values ​​established by standards, undergoing changes in the same location. Of the pollutants analyzed in the activities developed at the construction sites, values ​​above the permitted level were identified for CO2 and local temperature. The Particulate Matter in several measurements showed the respirable fraction close to the permitted limit. The best results were during the 4th inspection, the day was “humid” due to the action of local rain with small gusts of wind. In the discussion section, these results are contextualized considering the theoretical framework, highlighting the implications and relationships identified.
 
 Research Implications: The practical and theoretical implications of this research are discussed, providing insights into how the results can be applied or influence practices in the field of the construction environment.
 
Originality/Value: This study contributes to quantifying air quality in construction work environments. The relevance and value of this research are evidenced by raising and quantifying acceptable tolerance limits according to legislation, as well as warning about the permanence and dispersion of these contaminants, which in high concentrations are harmful to human health.
Inter-organizational networks: Essence and place in integration processes in industry
Authors: TARASH Lidiya I. , GOLODNYUK Roman A.
Published: February 2025

Subject. The article discusses inter-organizational networks being a modern form of integration and occupying a certain place in integration processes of business entities.
Objectives. The study aims to identify the essence of inter-organizational network and determine its place in the integration processes in industry.
Methods. The study employs such methods as reflection of the general in the special, formal logic, in particular, the rules for defining a concept, rules for dividing the scope of a concept, and the BCG matrix methodology.
Results. We revealed prerequisites for development and characteristic features of inter-organizational networking, gave a definition of the inter-organizational network concept. Based on the developed typology of forms of integration associations of enterprises in industry, the place of network forms of integration in integration processes in industry is determined.
Conclusions. Interorganizational networks are a modern form of integration. They occupy a certain place in the integration processes of business entities. Depending on the methods of business entities integration, there are natural, classical, and incomplete or partial integration, quasi-integration. Quasi-integration provides control over the management of a legally independent company though without control over ownership.
Modeling the tax burden impact on the results of innovation activity
Authors: OSINEVICH Lyudmila M. , FEOKTISTОVA Tat’yana V.
Published: February 2025

Subject. This article discusses the issues of Russia's transition to an innovative path of development, financial support for manufacturing industries, problems of tax regulation and modernization of production.
Objectives. The article aims to identify and measure the statistical relationship between the indicators of reducing the tax burden on economic entities implementing innovative projects and the country's gross domestic product dynamics.
Methods. For the study, we used a production functions framework and differential analysis.
Results. Based on the calculation of the amount of growth in the gross domestic product of the Russian Federation with a reduction in the tax burden by a fixed amount and the assessment of the probability of intensification of innovative activity of economic entities, the article finds that the increase in the gross domestic product in the Russian Federation occurs due to the use of non-mechanized labor and that the productivity benefits are higher than those ones of capital.
Conclusions. The article concludes that the efficiency of the economy of the Russian Federation is relatively low.
The use of artificial intelligence in social networks and the media to manipulate public opinion
Authors: FILIN Sergei A. , LANCHAKOV Aleksandr B.
Published: February 2025

Subject. This article discusses the problems of artificial intelligence development and information security.
Objectives. The article aims to develop measures to counteract attempts to manipulate public opinion.
Methods. For the study, we used the methods of systems, comparative, structural, and logical analyses.
Results. The article reveals positive aspects of the artificial intelligence use in the media, and it proposes certain recommendations for improving the information security of citizens and the State.
Conclusions. On the territory of Russia, it will be mandatory to mark content created by artificial intelligence with special tags.
Ural State University of Economics (USUE)
Authors: GRECHKO Mikhail V. , GURDZHIEV Georgii M.
Published: February 2025

Subject. This article discusses the issues of development of a complex semi-structured system.
Objectives. The article aims to identify the relationship between order and entropy as factors in the development of the economic system.
Methods. For the study, we used the systems approach, mathematical modeling, and a graphical analysis.
Results. The article finds that in theoretical terms, the management of an economic system is a process of purposeful influence on the controlled values. The article presents an example of calculating the level of entropy in a simplified form in a conditional economic system.
Conclusions. The developed formalization makes it possible to fully assess the level of entropy of an economic system. Entropy is a significant indicator that determines the level of order of the system.
The Significance of Culturally Hybrid Religious Artifacts in a Multicultural Society
Authors: Sulistyani Hapsari Dwiningtyas , Rahmiaji Lintang Ratri , Rahardjo Turnomo
Published: February 2025

The Cheng Ho Mosque in Surabaya is the study's main point since it is a cultural artifact with a structural layout and social objectives that combine Chinese and Islamic traditions. The Cheng Ho Mosque is a cultural object, as well as a social arena that represents hybrid culture. The cultural artifact serves as essential for understanding how social interaction takes place in an environment with symbols representing cultural hybridity. This study aims to show how Cheng Ho Mosque, as a cultural artifact, develops significance and becomes part of a cultural group's daily existence. The main theoretical framework used in this study is Cultural Identity Theory. Cultural semiotics is the research method that is being used. The study's findings suggest that the cultural semiotic frame analysis of the artifacts indicates three distinct characteristics of Surabaya's Cheng Ho Mosque: a religious place, a commercial space, and a social space. Worship activities including prayer, reading the Holy Qur'an, and recitation are all part of the interactions in the mosque's main function. The architecture of the buildings surrounding the mosque, meanwhile, was designed to reflect the business culture and network of the Chinese community in Surabaya and the area, including the use of corporate sponsors for events that are not just religious but also for general community activities including sports and gatherings of the Surabaya Chinese community. The Cheng Ho Mosque is an artifact that represents the distinctive features of Chinese Muslims as a subculture.
Internationalization Narratives: An External Reputation or Higher Education’s Culture? (Dramaturgy Study Of Cultural Performance)
Authors: Hadiputri Desisonia Lilia , Trenggono Nanang , Ashaf Abdul Firman , Wardhani Andy Corry
Published: February 2025

Internationalization narrative in Indonesia commonly mentioned in the national forum whether by political elites or ministry of education & culture. Those indicated that the government has already understood about the urgency of Higher Education (HE) in creating high-competitive human resources towards globalization era. Directorate General HE envisions world-class universities not only by rankings but through a quality culture, academic culture, and work culture. However, practically, developing region such as Lampung province has some issues in defining internationalization within their institutions. The purpose of the research is to desribe how higher education elite construct the front and back stage meaning of internationalization. The research, based on Schein's Organizational Culture and Pacanowsky and Trujillo's Communication Performance models, utilized phenomenological methods including in-depth interviews towards key informans, observations, and document analysis. Findings indicate alignment between Universitas Lampung (Unila)'s leadership assumptions and internationalization: globalization as certainy, international recognition orientation, and the significance of leadership in global competition. Key values promoted include dignity in equality, prestige, local wisdom, and global awareness. Internationalization is interpreted as striving for World Class University status. The study confirms through dramaturgy theory that Unila demonstrates leadership commitment and uses prestige rhetoric to unify leaders, though enculturation and global awareness are lacking, resulting in low student engagement in international programs. World Class University is seen as a dynamic expression of institutional image and reputation, facing various challenges.
Communication Strategy in the Implementation of Waste Management Public Policy in the Tasikmalaya District
Authors: Hayati Neni Nur , Wahyudin Uud , Bajari Atwar , Sjoraida Diah Fatma
Published: February 2025

The lack of public awareness of waste management seems to be a never-ending problem. Tasikmalaya Regency is one of the areas in West Java that has received much attention for being a regency surrounded by garbage around the main road. This article aims to determine the government's communication strategy in implementing public policies related to waste management in Tasikmalaya Regency. This research uses a constructivist paradigm with a descriptive qualitative approach through observation and in-depth interviews. The results show that the local government has made a strong commitment through Tasikmalaya District Regulation Number 3 Year 2022 on Waste Management to solve the waste problem in Tasikmalaya. However, in its implementation, there are communication barriers, both internally and externally, that cause policy implementation to be far from the predetermined target because the socialization of rules, including education to the community, is not massive and maximum so that the messages conveyed do not change people's behavior. This condition has profound implications for the lack of citizen participation in overcoming and minimizing waste piles. Weak law enforcement is a problem, especially for industrial plastic waste producers. Infrastructure issues, including facilities such as waste transportation fleets, waste disposal facilities, human resources, and budget limitations, are still arduous for local governments. Environmental communication is the key to two-way interaction between the government, community, and stakeholders.
Synodic-Resonant Earth/Mars Waypoints
Authors: Adamo Daniel R.
Published: February 2025

Heliocentric orbits concentric and coplanar with Earth’s are placed 19.5% farther from the Sun to naturally maintain a synodic period of 4.27 years, exactly twice that of Mars with Earth. Phasing conditions for infrastructure in these synodic-resonant orbits are developed to minimize propulsive requirements when a 5-day loiter period at this infrastructure is planned during an Earth/Mars transit. With an in-transit loiter, more mass can be transported between Earth and Mars over time than with direct transits if the infrastructure functions as a waypoint to replenish propellant and other consumables while payload is optionally offloaded or supplemented. Four synodic-resonant waypoints cover all Earth/Mars transit opportunities, serve as Earth/Mars communication relays, and offer useful forward/turnaround abort options not available to direct transits. Prospects for constructing a waypoint from known asteroids in nearby orbits are also assessed.
Characteristics of Modified Fluidic Oscillator with Adjustable Flow Parameters
Authors: Martinke S. , Woszidlo R. , Nayeri C. N. , Paschereit C. O.
Published: February 2025

The presented experimental study investigates the inner fluid mechanics and the oscillation patterns of a modified fluidic oscillator. The design is based on a fluidic oscillator with two feedback channels, but the feedback channels are removed. The fluid used to switch the main jet is supplied externally through fast-switching valves into short remains of the feedback channels. This enables the independent control of main mass flow, feedback channel mass flow, and frequency. Pressure measurements inside the mixing chamber give insight into the internal fluid dynamics. The external velocity field is measured using a particle image velocimetry system. Mean velocity fields and phase-averaged jet deflection angles enable a detailed analysis of the oscillation patterns. When gradually reducing the mass flow through the valves, the oscillation transitions from consistent to intermittent and eventually to a nonoscillating state. An in-depth analysis shows that the fluid volume of the feedback channel is driving the oscillation. The amount of volume necessary for an oscillation depends on the inner geometry of the fluidic oscillator. These results are expected to be applicable on an unmodified fluidic oscillator with feedback channels because the decisive internal flow mechanics are presumably the same in both devices. The modified fluidic oscillator can create a wide variety of different oscillation patterns and therefore enables systematic investigations of oscillation patterns with just one device. Changing the oscillation frequency or the main jet velocity results in different oscillation patterns. When both parameters are changed simultaneously to maintain a constant Strouhal number, the oscillation pattern remains the same.
Efficient Removal of Sand and Cement Filled Tubing Restriction Using Coiled Tubing in a Decade-Long Idle Well
Authors: Yap Y. H. , Utta A. M. , Isik F. S.
Published: February 2025

Well 406, located in offshore Sarawak, is a dual string completion well which had been idle since 2013, due to sand build up in the tubing and cement residue left during cement packer operation. Long string for well 406 was identified as the candidate for dumpflood project with the need to access long string to secure access to Zone S3.4, located almost at the end of tubing. Multiple attempts to clear the restriction in long string via slickline from 2013 until 2023, however unable to improve the accessibility to access Zone S3.4. Coiled tubing well clean out to clear the restriction was identified as the solution for the final attempt in 2023.

The project encountered significant challenges such as uncertainties of restriction in long string due to unknown data as the well was never intervened below the HUD. This well was also located at small jacket platform with deck space limitation to accommodate Coil Tubing, Sand filtration, Slickline and Portable Crane package. During the actual operation, teams encountered multiple held up depth point and included additional camera run for verification of HUD. Tubing integrity in long string was jeopardized, hence there was possibility of no liquid return due to the perforated tubing joint from previous project. Three stages Well Clean Out combination of high penetration nozzle milling was established.

Through prudent and innovative approaches, combined with efficient operation planning, well 406 was successfully reactivated after 10 years and meet the production target with potential reserve addition after commencement of dump flood in well 401.
Compositional Modeling of Associated Gas Injection in Ultra-Low Permeability Reservoirs: Multi-Effects of Gas Components on Reservoir In-situ Hydrocarbon
Authors: Zhang Zheng , Rui Zhenhua , Zhao Yang , Liu Yueliang
Published: February 2025

Associated gas injection has been extensively used during CO2 injection process in oil fields. However, because the main hydrocarbon components in produced gas show distinct thermodynamic properties and deeply affect subsequent CO2-oil interaction in gas reinjection stage, CO2 purity is not the only requirement for an efficient gas recycling process In this work, coupling effects of hydrocarbon component was taken into account to determine minimum CO2 purity requirement before associated gas recycling In this work, composition of crude oil sample was analyzed by gas chromatograph (GC) during pure CO2 injection was calculated via reservoir scale composition numerical simulation. Two phase flash calculation of crude oil and produced gas was carried out in PR-EOS and oil properties after contacting with associated gas were obtained. Finally, reservoir storage ratio of CO2 in different states was calculated to evaluate the result of gas recycling process.

During pure CO2 injection process, the composition of produced gas is highly related to that of crude oil and the main components are light hydrocarbon (CH4) and medium hydrocarbon (C2-C6). Simulation results show that addition of both light and medium hydrocarbon can further decrease viscosity and density of crude oil. With concentration rising, CH4 decreases oil volume factor observably and restrains the swelling of crude oil and C2-C6 component increases oil volume factor and promotes liquid phase swelling. For gas mixture containing CH4 and C2-C6 with the same concentration, crude oil still has a tendency to swell during gas recycling. In P-T envelope, CH4 can expand two-phase region and rise saturation pressure in certain temperature and C2-C6 shrink the envelope. In view of CO2 storage, addition of C2-C6 can promote solubility trapping and reduce risk of leakage, and hence lower the standard of CO2 purity required in gas reinjection process. This work illustrates that the coupling effect of CH4 and C2-C6 can further reduce oil viscosity and density, promote oil to swell and dissolve gas. Considering these effects above can reduce the requirement for high pure CO2 in gas recycling process and hence save gas separation cost.
Rapid Reservoir Forecasting of Brown Fields with Data-Driven Streamline-Based Surveillance Models
Authors: Thiele M. R. , Batycky R. P. , Manfre D.
Published: February 2025

Streamline-based reservoir surveillance models are easier to build, calibrate and use, than traditional reservoir flow simulation models, making such models ideally suited to forecasting short-term operational strategies in mature floods. We summarize how streamlines quantify dynamic well-pairs and well rate allocation factors from a flow model that includes geology, well locations, and historical data. However, unlike reservoir flow simulation models, surveillance models do not require history matching as historical rates are used directly in material balance calculations on injector-producer pairs to capture changes in pressure and fluids in place. This lack of requiring a history matching step, means that surveillance models can be used as part of a more agile reservoir management approach.

One limitation of surveillance models has been how to generate meaningful forecasts. As an extension to streamline-based surveillance models, we show in this paper how correlating historical oil, water, and gas rates to grid properties within each producer's drainage volume allows to use these surveillance models for forecasting individual producers. We demonstrate the forecasting ability on a mature WAG flood that has +40 years of history and +150 wells. First, we show forecasts based on new injection and production targets that promote sweep vs. injected fluids cycling, and compare the forecasts to a do-nothing base case. Next, we show how to quantify the impact of shutting in an injector, or comparing various producer-to-injector conversion locations on offset oil, water, and gas rates using our new forecasting methodology.
Improved Well Integrity Utilizing an Innovative Lost Circulation (LC) Spacer Across Fracture Networks and Permeable Formations
Authors: Ali Wajid , Hashmi Ahmad Atef , Abdullah Al Turki Faisal , Bouaraki Mouloud , Aljardan Moaathe , Pohl J.
Published: February 2025

Drilling and cementing across permeable, naturally fractured, and depleted formations have become the most common challenges worldwide. Lost circulation (LC) while cementing may lead to inadequate zonal isolation, putting the well’s long-term integrity at risk. The paper will review case studies for deploying an engineered LC spacer system as an important solution for primary cementing operations in cases where losses were encountered prior to the cementing operation or where losses were potentially induced while cementing.

The Engineered LC spacer system is a blend of functionalized polymers and bridging agents designed to provide effective zonal isolation, even in the most challenging zones. The polymers provide an adjustable viscosity feature, whereas the bridging agents serve to cure the losses. Bridging agents are available in various grades depending on their particle size. The combination of polymers and bridging agents yields a solution that is effective at sealing a wide range of fracture widths in various formations. The product is environmentally compliant and suitable for use in all areas.

Typical cement spacers are not designed to address pre-existing or induced losses. Case studies confirmed that the engineered LC spacer provided safe isolation of low fracture gradient zones cost-effectively, even in challenging narrow-pressure window scenarios, by forming a shield across formation walls. It reduced the loss circulation from partial to total losses across permeable, fragile, weak formations, naturally fractured reservoirs, and depleted reservoirs. To validate the spacer’s effectiveness, several field jobs were executed for casings and liners with promising results. Ultimately, the case studies conclude that LC Spacer can be designed to address the challenge of minimizing losses during the primary cement job by offering superior sealing capabilities.

This paper presents the laboratory testing and field applications of this novel engineered LC spacer at high-pressure gas wells. It also includes a discussion of the methodology, material properties, and applications. After successful results on several jobs, this spacer system is now being adopted to optimize cementing, where losses during cementing operations in the past forced the modification of the well construction.
A Novel Quantitative Statistical Methodology For Identifying Operational Effects On Gas Breakthrough In Horizontal Wells
Authors: Sun Liang , Han Rubing , Xiong Lihui , Yang Jian , Zhao Hang , Lou Yuankeli , Shi Shuzhe , Du Wei , Jiao Yuwei
Published: February 2025

The injected gas override and gas cap coning cause severe breakthrough issue in horizontal wells, and have an adverse impact on the sweep efficiency and stable production. Statistics show that over 20% of producers in a gas drive reservoir with gas cap in the Middle East experience fast production decline because of gas breakthrough with gas-oil ratio (GOR) up to 4 ~ 5 Mscf/bbl, and some wells are even shut down due to violation of reservoir management guideline. The quantitative identification of operational effects on the gas breakthrough is the key to the optimization of gas injection strategies.

A quantitative statistical approach is employed in this study. The specific idea is to first set GOR as a dependent variable, and operational parameters as independent variables, such as subsurface oil production rate (OPR) and bottomhole flowing pressure (BHFP) of oil producers, and subsurface gas injection rate (GIR) and bottomhole injection pressure (BHIP) of adjacent gas injectors, etc. Then, the partial correlation method is used to screen influence factors by measuring the degree of association between two variables, with the effect of a set of other variables removed. Finally, the quantile regression model is established by applying the method of least squares, which can be used to further quantitatively determine main control factors of GOR evolution and variation trend of their influence at different stages.

The statistical results show that main control factors of gas breakthrough are ranked as BHFP, OPR and BHIP. In general, BHFP and OPR have a significant negative impact on GOR rise, while BHIP of adjacent injectors have a positive effect. Specifically, in the stage of low GOR (0 ~ 2.5 Mscf/bbl), the influence of BHIP is gradually enhanced, which indicates that BHIP should not be too high, so as to prevent premature gas breakthrough. As the cumulative gas injection increase, there is a dominant flow channel between well pairs with good communication. The breakthrough of injected gas to producers leads to higher GOR of 2.5 ~ 3.5 Mscf/bbl. It is necessary to control BHIP and maintain BHFP at a high level to inhibit the approaching GOR rise due to gas channeling and coning. When GOR is higher than 3.5 Mscf/bbl, the more effective way is to control OPR and BHFP according to the optimized voidage replacement ratio (VRR) and flow rate distribution. The field pilot wells show expected GOR reduction and improved oil production.

This paper is the first to provide a statistical investigation of GOR evolution. The benefit of this methodology is to quickly and quantitatively identify operational effects on gas breakthrough, and to adopt phased measures for high GOR control and optimum gas injection strategies.
Successful Well Delivery Using Integrated Geomechanical Modeling: Case Study from South Oman
Authors: Ariyanto P. , Al Amri B. A. H. , Solisa D. , Mirza M. , Shinde A. , Mitra S. , Upreti D. , Perumalla S. , Dawood M.
Published: February 2025

Field Cluster E has a number of producing and non-producing fields. While drilling exploration and development wells in this block, there exists numerous wellbore instability issues. Major wellbore instability issues include total and partial losses in shallower overburden, shale instability in intermediate section, and depleted reservoirs in development wells. These wellbore instability issues lead to drilling operations related non-productive time (NPT). In order to minimize NPT related to wellbore instability issues, Geomechanical study is initiated. This paper discusses the role of Geomechanical modeling for successful well delivery in ongoing exploration and development targets.

Understanding the state of stress and rock strength is very important for wellbore stability design. Comprehensive drilling analysis is carried out for number of offset wells to identify the drilling hazards. 1D Geomechanical models are built by integrating the data from drilling, geology, geophysics, petrophysics and reservoir engineering disciplines. Vertical stress is estimated by integration of density log from surface to reservoir TD. Pore pressure is constrained using Normal Compaction Trend (NCT) techniques, calibrated by formation pressure measurements. Formation Integrity Tests (FITs) are acquired and doesn't give any idea about minimum horizontal stress. In the absence of LOTs & rock mechanics tests, regional Oman experience is utilized. Orientation of maximum horizontal stress is determined using Caliper, Image logs and World Stress Map. Magnitude of Maximum horizontal stress is constrained using Stress Polygon Methodology. Knowing the magnitude and orientation of in-situ stresses, pore pressure and rock strength can help in evaluation of wellbore stability. 1D Geomechanical models are then calibrated against actual failure observed in Caliper log and wellbore instability events.

These calibrated 1D geomechanical models are then utilized for predicting mud weight in upcoming exploration and development wells. Wellbore stability analysis has helped to predict optimum mud weight for a number of exploration and development wells. Detailed drilling hazard analysis and Geomechanical Modeling also helped to design optimum mud type for solving wellbore instability issues using specialized mud additives.

Design and implementation of optimum mud weight and mud type using integrated geomechanical modeling and drilling fluid design has helped to drill number of vertical and highly-deviated wells with reduced NPT. The study has also helped to reduce or remove associated drilling hazards and facilitated successful well delivery by proactively working together between sub-surface and drilling engineering teams. This paper discusses the implementation of study results to one planned well in detail.
Research and Experimentation on CO2-Assisted Cold Production of Heavy Oil
Authors: Yuan Aiwu , Wang Yao , Long Hua , Zheng Xiaosong , Yang Xin , Li Rui , Yang Zhou , Ouyang Xuhong , Bian Chaoliang , Liu Yanli
Published: February 2025

This paper investigates the CO2-assisted viscosity reducer composite flooding technology for addressing issues such as low recovery and high residual oil saturation in conventional heavy oil reservoirs. A three-dimensional numerical simulation model was established to systematically analyze the influence of key parameters such as reservoir sealing and crude oil viscosity on development effectiveness, leading to the establishment of an applicability evaluation system for CO2-assisted cold production of heavy oil reservoirs. The displacement mechanism of CO2-viscosity reducer composite flooding was studied through microscopic visualization experiments, examining the effects of different injection methods and timing. Field tests were conducted to verify the feasibility of this technology. The results show that: (1) reservoir sealing, oil viscosity, permeability, and cycle period are the main factors affecting development effectiveness; (2) the anionic-nonionic composite viscosity reducer exhibits optimal viscosity reduction and oil displacement performance; (3) mixed injection method achieves the best microscopic displacement effect; (4) the daily oil production of field test well increased from 0.7t to 2.2t, validating the production enhancement effect. This study provides theoretical basis for the promotion and application of CO2-assisted cold production technology in heavy oil reservoirs.
Rock Thin Section Image Search System Using Machine Learning Encoders
Authors: Al Ibrahim M. A. , Smith R. J. , Pathi V. S. , Hong S.
Published: February 2025

Executive Summary

Rock thin section analysis and interpretation are important processes in understanding formations. This study shows a new quantitative system to automatically search through thousands of legacy thin section images and their associated metadata and interpretation to find the closest match to an unlabeled sample. The system utilizes image-processing and neural-network-based encodings to build a database. Using this, it is possible to utilize existing legacy data as a guide to interpret new samples. The advantage of the system is that the associated metadata for the legacy thin sections does not need to be structured and images do not need to be labeled. Thus, we maximize the utilization of existing data without the need for these time-consuming tasks that are usually needed for most formulations of machine learning problems.
Improved High-Resolution and Accurate Model Building by Layer-Striping Tomography - A Case Study of Marginal Discovery in Block 05.1a Nam Con Son Basin Offshore Vietnam
Authors: Van Thanh Do , Trung Nguyen Duong , Phong Nguyen Xuan , Giap Tran Minh , Van Du Dang , Tuan Do Anh , Van Cuong Bui , Hanh Nguyen Thi My , Ahmed Mahmoud , Soliman Mahmoud , Kumar Jyoti
Published: February 2025

Dai Hung Nam (DHN) discovery consists of four sub-blocks separated by highly faulted structures, of which three wells were penetrated in different sub-blocks with two successes. However, the failure of the third well at the SB-3 sub-block induced a change to marginal development and made it difficult to decide whether to drill the fourth to continue the appraisal process or terminate the project to minimize the investment. The failure is caused directly by aspects of thin, tight, and low-permeability reservoir's properties; however, indirect reasons might be in terms of volumetric, shaped, and positional accuracy of the drilling targets that being affected by velocity modeling resolution and fidelity as well as fault imaging quality of the legacy processing dataset.

To overcome the challenge, we launched the updated seismic reprocessing which focuses on both depth imaging with high-resolution and accurate model building and improving image quality with free-noise and high-resolution of the faulted systems. In addition, we also take care of the presence of complex overburden such as volcanic local features, which introduces another modeling challenge at the deeper reservoir targets.

This report is to share an experience in getting a high-resolution and accurate velocity model by layer-striping tomographic scheme over ultra-faulted geological structures. With the precise model and adequate signal processing, the anisotropic Kirchhoff pre-stack algorithm was well-imaged to improve the accuracy and reliability of the seismic reflector, fault definition, and data bandwidth. The new interpretation on the re-processed data illustrates that the hydrocarbon volume in the sub-blocks SB-1 and SB-2 had increased by 18% and 13%, respectively. Consequently, resources in the last un-drilled sub-block SB-4 increased by about 44% if put in comparison with the legacy estimates. This evidence has fully supported the decision to drill the final appraisal well with a successful drill stem test (DST) of maximum flow rate of 6,900 barrels oil per day (bblopd). This result converts the project from a marginal discovery to a development stage, and the seismic dataset will continue to support the well-design and optimized drilling locations in the development phase as well as further quantitative interpretation (QI) studies such as AVO and inversion.
Vivência de acadêmicos de enfermagem no cuidado a pacientes portadores de lesão por pressão
Authors: Nobre Paula Fabiane da Rocha , Pedreira Núbia Pereira , Bevilaqua Jannaina Campos , Costa Elaine Thayna Trindade , Nascimento Amanda Sousa do , Strympl Andressa Michele da Silva , Rosário Isabelle Cristine Cardoso do , Gonçalves Eriane Miranda , Pires Achiles e Sousa , Sagica Taís dos Passos
Published: February 2025

Objetivo: Abordar as perspectivas dos acadêmicos de enfermagem em relação ao manejo das Lesões por Pressão (LP) em pacientes hospitalizados. Relato de experiência: Trata-se de um estudo descritivo, do tipo relato de experiência, sobre a vivência de acadêmicas do 9º semestre do curso de bacharelado em Enfermagem em uma Universidade Pública Federal em Belém, no estado do Pará durante o estágio obrigatório, no período de março a junho de 2023 frente a portadores de lesão por pressão, o qual resultou em produção de uma tecnologia educativa para melhor compreensão acerca dos aspectos de LP e coadjuvantes. Considerações finais: Através da experiência vivenciada, é válido ressaltar a lacuna a nível de conhecimento no que tange a algo que é próprio da prática assistencial da equipe de enfermagem, que diz respeito à avaliação correta de lesões e feridas e a escolha certa dos coadjuvantes para o processo cicatricial, sendo importante a produção de estudos como esse que evidencia as lacunas assistenciais e viabiliza que seja traçado estratégias em prol melhoria do processo de ensino e aprendizagem.
Eficácia da terapia com semaglutida em comparação com a liraglutida em pacientes obesos
Authors: Costa Júnior Janilzo de Jesus Mendes , Portilho Moisés Cardoso , Teixeira Tiago de Lima Vieira , Silva João Guilherme Salomão , Cassini Leonardo Tedesco , Palmeira Maurício Koury , Diniz Isabela Guerreiro , Guimarães Márcia Cristina Monteiro
Published: February 2025

Objetivo: Analisar a efetividade da liraglutida e semaglutida, interpretando os resultados de suas respectivas respostas terapêuticas comparativamente. Métodos: Trata-se de um estudo bibliográfico, tipo revisão integrativa com artigos publicados entre 2019 e 2024, na base de dados PubMed, por meio dos Descritores em Ciências da Saúde (DeCS) e do Medical Subject Heading (MeSH) organizados através de operadores booleanos. Resultados: 15 artigos foram identificados durante a pesquisa, porém apenas 9 obedeceram os critérios estabelecidos. Conclusão: Verificou-se que a semaglutida acarreta melhorias nos fatores de risco cardiometabólicos como circunferência abdominal, pressão arterial e níveis lipídicos. No entanto, ressalta-se que mudanças conscientes no estilo de vida associadas a farmacoterapia são protocolos importantes no controle da obesidade e sucesso no tratamento a longo prazo.