bluuebunny/crossref_metadata_2025_split huggingface dataset:
Capsule endoscopy: clinical insights, challenges, and evolving perspectives in the 21st century
Authors: Tsuboi Akiyoshi , Oka Shiro , Tanaka Shinji 
Published: November 2024

Capsule endoscopy (CE) is widely employed in clinical practice owing to its minimally invasive nature and high diagnostic accuracy. It is the primary modality for evaluating suspected diseases of the small-bowel, as recommended by guidelines from various countries. Advancements in CE technology have introduced various models for evaluating not only the small-bowel but also the colon, esophagus, stomach, and the entire gastrointestinal tract. Moreover, colon CE enables early detection of colorectal polyps and cancers, as well as surveillance of inflammatory bowel disease. Furthermore, innovative developments, such as magnetically controlled CE, offer enhanced maneuverability, particularly in the stomach. Recent reports highlight the growing use of artificial intelligence in CE, with promising potential for reducing physician burden, and clinical implementation is anticipated. Furthermore, novel CE technologies are expected to enable the diagnosis of gastrointestinal diseases through a less invasive approach in the near future.
Key questions/aims: Herewith we provide a comprehensive review of the current status and clinical applications of CE while addressing the challenges that remain in its implementation in practice and highlighting the key areas for future research and development.
Water status assessment in grapevines using plant electrophysiology
Authors: Cattani Amanda , De Riedmatten Léo , Roulet Julien , Smit-Sadki Tara , Alfonso Esteban , Kurenda Andrzej , Graeff Moritz , Remolif Eric , Rienth Markus 
Published: November 2024

Traditional methods for assessing vine water status, such as the Scholander pressure chamber, are time-consuming, punctual and labour-intensive. The development of alternative methods which are accurate, reliable and can provide real-time information on vine water status is a necessity for farmers all over the world. This study proposes the use of plant electrophysiology as a novel approach for real-time water status assessment in grapevines. We conducted four climate chamber experiments with potted grapevines under different irrigation regimes. Various morphological and physiological assessments were performed in parallel with electrophysiological measurements to correlate classic water status assessment methods with plant electrophysiological signals. Two machine learning approaches based on classification and regression were employed to train the prediction models. Results obtained from both models indicate significant differences in irrigation status between well-watered and water-deficit plants, with the latter showing reduced growth and physiological activity, confirming the water stress status of the plant. While the binary classification model successfully differentiates between well-watered and water-deficit plants, its practical use is limited. Therefore, a regression model was developed to directly predict predawn leaf water potential. To the best of our knowledge, this is the first time that electrical signals are correlated with vine water potential measurements. The findings presented here thus provide a promising new tool for future real-time and remote monitoring of vine water status to manage irrigation and adapt agronomic strategies. Nevertheless, validation and optimisation of the models are still necessary, particularly under field conditions.
The Method of Mapping and Calculation of the Changes in Pressure and Saturation in Producing Reservoirs Using Time-Lapse Seismic Data
Authors: Shevchenko S. 
Published: November 2024

Abstract
Reservoir monitoring is an important aspect of managing field development to optimise hydrocarbon recovery. The application of time-lapse seismic technology makes this process economically feasible. This paper presents a method for calculating the pressure and saturation changes within the producing reservoir by applying the Extended Elastic Impedance (EEI) concept to the time-lapse seismic data.
Based on AVO (Amplitude Versus Offset) principles, the EEI concept has been used by the oil industry in exploration and development projects, mainly for lithology and fluid prediction. We propose and demonstrate a method that estimates pressure and saturation changes in the reservoir by applying EEI to time-lapse seismic data. The method is based on the fact that time-lapse seismic data processed at EEI specific χ angles using linearised EEI AVO crossplot projections can discriminate changes of particular rock properties in the producing reservoir that relate to changes in reservoir pressure and water saturation. The technique has been tested successfully to detect and discriminate both pressure and saturation changes at the producing Enfield oil field in the North West Shelf of Western Australia, where water injection wells were used to enhance oil production. The reservoir has complex geological settings and is complicated by compartmentalization. We estimated optimal EEI rotation angle χ = +42° for the fluid changes based on log data and Biot-Gassmann modeling and χ = –79° angle for the pressure changes on rock-physics models based on laboratory velocity-pressure data measured on Enfield well core samples.
Other methods to find optimal angles χ were tested and can be used as an express analysis for pressure and saturation changes in the producing reservoir. Seismic reflectivity and inversion domains were used for comparison and analysis of the final rotated volumes.
The final calculated pressure map of the producing field was successfully tested with areas of changing the pressure from the well data, showing that the quantitative and qualitative results are credible. The pressure and oil-saturation change maps of this field were also compared and consistent with the operator's (Woodside Energy) interpretation that used a different method.
This approach should be useful in the analysis of time-lapse seismic data and would help the management of the reservoir using a straightforward procedure.
Application of Advanced Work Packaging in Structural Steel Installation: Optimization of Construction Execution of a Mining Project in Southeast Asia
Authors: Flores P. , Ramos C. D. , Rey C. S. 
Published: November 2024

Abstract
Advanced Work Packaging (AWP), introduced in 2011 by the Construction Industry Institute as a project management strategy designed to improve outcomes in construction projects, was adopted in a mining project in Southeast Asia. This study presents the core principles of AWP, the preparation of Installation Work Packages for the structural steel assemblies of the said project, and the importance of close collaboration and communication between the Workface Planning (WFP) team and other stakeholders.
The AWP concept breaks down a construction project into smaller and more manageable units called Installation Work Packages (IWPs). These packages contain information about the work scope, permits, labor, tools and equipment requirements, special safety considerations, material take-offs, installation procedures, and other related constraints that need to be cleared prior to construction of the IWP scope. In addition, central to AWP's philosophy is the early formation of a collaborative team of professionals comprising of discipline engineers and designers, supply chain experts, steel fabricators, rigging engineers, and site managers.
Various challenges may significantly affect the performance of construction projects. In this mining project, geographical configuration of the site and complicated transportation routes posed challenges in the delivery of materials from the warehouse to the laydown areas. Moreover, unintentional material fabrication lapses and unforeseen constructability issues necessitated revisions of related engineering drawings or modification of supplied materials. Similarly, complex engineering details identified in the pre-construction phase required simplified solutions. This paper shows how regular alignment between concerned groups in the planning, design, engineering, procurement, fabrication, and construction phases can enhance project performance by proactively addressing potential causes of delays, such as those mentioned. Upon the project's completion, the structural IWPs were accomplished ahead of the projected baseline finish date by about three (3) months and the hard deadline set by the client was met despite the challenges faced.
The use of customized in-house templates and software applications like Navisworks Simulate expedites and assists in the preparation of IWPs; hence, this paper also briefly explores the potential of other innovative applications like Smart Construction to improve the automation of IWP preparation. As the efficiency and effectiveness of AWP consequently improve project performance, its demand and application in diverse types of projects and industries become inevitable and a key solution to the most common challenges faced in construction execution.
Protecting HSE: Monitoring Pipe Bending Stress Using Temperature Compensated Distributed Fiber-Optic Strain Sensor for Enhancing Pipeline Integrity Situational Awareness
Authors: Zou Lufan , Sezerman Omur 
Published: November 2024

Abstract
A distributed fiber-optic strain and temperature sensor (DSTS) with less than 1mW (Laser Class 1M) of pump power has been developed by controlling depletion of pump beam resulting from coherent interaction of probe and depleted pump (CIPDP). DSTS with CIPDP technique ensures flat-noise-floor over entire fiber length, which offers same resolution and accuracy over entire fiber length and makes simultaneous measurement of strain and temperature possible. Bending stress monitoring of an 11km pipeline located in northern Alberta, Canada using temperature compensated distributed fiber-optic strain sensor with CIPDP technique is presented. The results showed that some parts of the pipeline experienced 3,063µε during winter from November 2022 when the pipeline was installed to April 2023 when the soil was still frozen. The pipeline leaks due to the ambient temperature change are presented also. The leak volume of 2.187gal with the injection pressure of 105psi and the temperature difference of 39°F (21.6°C) between the line temperature and the soil temperature has been detected in one minute after a leak occurred through 1/8" orifice. All leaks with different volumes controlled by injection pressure, orifice, line temperature, and duration have been detected successfully.
Developing a State-of-the-Art Subsea Engineering Laboratory for Training the Next Generation Energy Industry Manpower
Authors: Patwardhan Samarth D. , Paranjape Parag 
Published: November 2024

With the world population slated to rise significantly over the next few decades, the demand for energy is also going to rise multifold. Although renewables are making their presence felt in the overall energy mix, the world is far from seeing them as a primary source of energy. This is primarily since energy from these sources is currently not being delivered at the scale at which it is required, to meet the growth in the total energy demand. Going forward, although renewables will account for a higher percentage of the overall energy mix, the percentage of the energy mix that consists of oil, gas and coal will also be significant. This is evident from the fact that fossil fuel consumption reached a new high in 2023, driven primarily by the rising oil consumption (BP Energy Outlook, 2024). Figure 1 shows that 84% of the energy mix in 2023 consisted of hydrocarbons.
A large part of the growing demand for energy is due to the emerging economies, with India and China leading the group. Keeping the Paris Agreement of 2015 in context, the successive COP meetings discuss strategies of adoption of technologies to achieve the Net Zero target, as sustainably as possible. This includes shifting the mass transportation systems from fossil fuels based to electricity based, along with efforts that need to be taken to enhance the efficiency of the electrification grid. With solar, hydro and wind incapable of providing electricity at such a scale, and nuclear taking a significant amount of time for commercialization, the onus falls on coal and gas, which are the current drivers for producing electricity across the globe. The surge in demand for electricity is going to be a function of the exploration and development of hydrocarbons, thereby leading to major investments being made in the upstream sector across the board. Investing in research and development (R&D) is going to be crucial for providing successful future energy sustainability (Kelechukwu, E.M., 2011). R&D efforts in reducing uncertainty in exploration and enhancing efficiency of production have resulted in production from reservoirs which were considered uneconomical a few decades ago (Alnuaim, S., 2019).
The onshore market for oil and gas is already contributing towards energy sufficiency. However, onshore projects will need to be supported with offshore discoveries, to meet the above-mentioned surge in demand. The global offshore market is expected to grow at the CAGR of 8.7%, to USD 65.63 billion by 2030, almost double of USD 33.22 billion, in 2022. Figure 2 indicates the Asia-Pacific drilling market size prediction up to 2030.
Universal Scaling of Counter-Current Spontaneous Imbibition Experiments Accounting for Sample Shape, Wettability, Saturation Functions and Other Input Parameters
Authors: Andersen P. Ø. 
Published: November 2024

Abstract
Spontaneous imbibition (SI) refers to multiphase fluid flow driven by capillary forces. In particular, counter-current (COU) SI is a flow setting where the wetting phase invades the sample while the non-wetting phase flows in the opposite direction (counter-currently). This is facilitated by exposing all open sides of the sample to the wetting phase. COU SI is among the most common experiments performed on porous media core samples. An important application of those tests is to estimate the rate of SI and ultimate recovery on larger scale, e.g. in naturally fractured reservoirs for assessing oil production from the matrix blocks or to assess water losses during hydraulic fracturing in tight shales. This is performed by converting the time scale seen in the laboratory to a time scale corresponding to the metric dimensions in the field.
Current approaches are based on taking a time scale obtained from the 1D (linear) capillary diffusion equation while applying a characteristic length to correct for flow into samples that do not have linear flow, such as cylindrical or otherwise. While a semi-analytical solution does exist that perfectly scales 1D flow tests for all conditions (although only at early time), the use of a characteristic length is only approximate and it is unclear how accurate or inaccurate the results can be. In a recent work it was demonstrated that imbibition into samples of arbitrary geometry could be accounted for in a highly accurate manner. While 1D flow results in recovery linear with the square root of time at early time, such linearity occurs until a much lower value of recovery for samples with flow from more sides open. This work aims to apply those results to assess different scaling approaches: In the first approach all samples have identical initial imbibition rate against scaled square root of time. While this works well for 1D samples, the rate of recovery declines soon for the complex geometry cases. An alternative, which still collects the 1D samples perfectly, focuses on giving similar recovery for all cases at a higher level of recovery. Both approaches are theory based and do not require any tuning parameters.
The theory is tested on numerical simulations and experimental data. The scaling collects data on a unit slope line of recovery against square root of scaled time. It is demonstrated that experimental data that can be modeled consistently (using the same set of input parameters) can be scaled more successfully.
Petroleum Engineering-Educational Evolution: Crafting Comprehensive Curricula for Well-Informed Minds
Authors: Samuel Robello 
Published: November 2024

Abstract
In today's world, societies face multifaceted challenges, from environmental sustainability to economic dynamics and societal well- being. Within the realm of petroleum engineering education, the need for curriculum restructuring is paramount, given ongoing industry transformations and technological progress. To meet the evolving demands of the field, educational pathways must embrace interdisciplinary methods and innovative teaching strategies. Curriculum reform, a pressing concern across engineering disciplines, underscores the importance of empowering learners with problem-solving abilities and adaptability in navigating complex landscapes. As artificial intelligence and technology reshape traditional work models, a comprehensive realignment of curricula is essential, requiring systemic shifts in evaluation, assessment, and instructional methodologies to ensure relevance and efficacy. The educational paradigm must transition from the conventional "learn at school and re-learn at work" model to a "learn to work" approach in line with industry requirements. In petroleum engineering education, a blend of fundamental and advanced engineering principles alongside hands-on learning is essential for enhancing job readiness. This paper presents a novel curriculum framework aimed at aligning educational objectives with industry needs. Emphasizing intelligent policy formulation, inclusive stakeholder engagement, and relevant subject matter, this framework offers a roadmap for effective implementation. Continuous professional development programs for educators empower them to influence educational policy and practice. Successful implementation of curriculum reforms necessitates phased strategies, pilot initiatives, and regular evaluation cycles to address logistical and pedagogical complexities. Nonetheless, challenges such as resource constraints, stakeholder opposition, and the demand for comprehensive teacher training and infrastructure enhancements must be navigated.
Replacement of SPM Buoy Moorings – Engineering Challenges
Authors: Mohan Varun , Cherian Litty Dani , Kamal Faris Ragheb 
Published: November 2024

Abstract
For FPSOs/cargo ships with higher drafts, it is necessary to have a dedicated facility at offshore to load/unload petroleum products since it is impossible to approach shore due to shallow water depths near shore. This dedicated facility which is called as Single Point Mooring (SPM) buoy can handle extra-large vessels at offshore. SPM buoy is a floating buoy anchored offshore to allow handling of liquid cargo for FPSOs/cargo ships. SPM buoys serve as a link between shore facilities and the tankers. Considering the importance of SPM buoys in providing liquid cargo services to various ships, it is crucial to inspect and maintain the mooring components which holds the SPM buoy in position. Replacement and maintenance of mooring components needs to be carried out periodically.
NMDC Energy, one of the leading EPCI contractors in Middle East recently was engaged in a project for the replacement of mooring components for an SPM buoy in Arabian waters.
Mooring components adopted in the project includes anchor chains and piles and related hardware. Since the buoy was operational, replacement of its mooring accessories required considerations of tanker berthing and slack periods. Superimposing the tanker berthing schedules to the construction activities for the replacement provides realistic duration of the project and required multiple mobilizations.
The sequential installation of anchor piles and subsequently the mooring chains for SPM buoy demand meticulous planning and engineering. The challenge gets compounded when multiple vessel types such as self-elevating platform and DP vessel are used. The establishment of clear sequence of operations and logistics are essential to initiate engineering feasibility assessments. This paper provides comprehensive discussion of all factors that needs to be accounted for seamless installation of piles and chains.
Whispers from the Reservoir: Well Interference Testing Unlocks Insights for Optimal Well Spacing and Completions Design in a Delaware Basin Case Study
Authors: Almasoodi Mouin , Pelton Kevin 
Published: November 2024

AbstractOptimizing well spacing in unconventional reservoirs employing multi-stage hydraulic fracturing remains a significant challenge. While overly close spacing incurs detrimental inter-well interference, excessive spacing leads to inefficient resource recovery. This study aims to present a workflow for pressure interference testing to optimize well spacing in unconventional reservoirs using early-time data. The proposed workflow integrates pressure interference testing with reservoir simulation and a real-world case study from the Delaware Basin, New Mexico. The case study focuses on three target reservoirs: Avalon, First Bone Spring Sand, and Second Bone Spring Limestone. To assess pressure communication and optimize well spacing, downhole pressure gauges were strategically deployed within each formation. This strategic placement enables the monitoring of pressure responses both during hydraulic fracturing and throughout production in each specific reservoir zone. Data analysis then evaluates the initial well spacing assumptions and identifies potential vertical and lateral communication between the zones. The Delaware Basin case study validates initial well spacing assumptions and provides early insights into reservoir connectivity. This information facilitates the optimization of completions design and well spacing. The study concludes that the pressure interference testing workflow offers a valuable tool for reservoir and completions engineers. Consequently, the workflow prevents loss of capital due to suboptimal design, ultimately leading to more efficient and cost-effective reservoir management. This paper presents a novel workflow that strengthens pressure interference testing by incorporating DQI (Devon Quantification of Interference) method. Additionally, this workflow transcends traditional pressure interference testing as it advocates for the integration of additional diagnostic techniques, such as fiber optics, offset pressure monitoring, and time-lapse geochemistry.