bluuebunny/crossref_metadata_2025_split huggingface dataset:
ДОСЛІДЖЕННЯ ВЛАСТИВОСТЕЙ БІОКОМПОЗИТІВ, НАПОВНЕНИХ ДИСКРЕТНИМИ ВОЛОКНАМИ ПРИРОДНОГО ПОХОДЖЕННЯ
Authors: П.П. Савчук  , О.Л. Садова  , В.П. Кашицький  , Є.М. Кальба  , О.Б. Климовець  
Published: February 2024

В статті досліджено вплив дискретних волоконтехнічної коноплі та льону на фізико-механічні властивості та структуру біокомпозитівна основі епоксидної смоли. Визначено ступень структурування, адгезійну міцність та міцність при стисканні високонаповнених біокомпозитів, а також оптимізовано вміст волокнистих наповнювачів в епоксиполімерній матриці. Такі біокомпозитні матеріали мають високі механічні характеристики, є стійкими до впливу атмосферних факторів та частково біодеградабельними, що підвищує екологічну безпеку на етапах виготовлення, експлуатації та вторинної переробки або утилізації виробів, оскільки містять наповнювач природного походження.
ПРЯМІ І НЕПРЯМІ ПЕРЕХОДИ У КРИСТАЛІЧНИХ СПОЛУКАХ ТlInX2–SnX2 (X – S, Se)
Authors: С.П. Данильчук  , О.В. Замуруєва  , В.Є.Сахнюк  , С.А. Федосов  
Published: February 2024

У роботі представлені результати оптичних і фотоелектричних вимірювань та їх аналіз для кристалічних сполук ТlInX2–SnX2 (X – S, Se) у діапазоні довжин хвиль 0,4÷1,1 мкм при температурі Т=300 К. Робота переслідує мету дослідити вплив молярного вмісту SnS2, SnSe2 на механізми міжзонних переходів та основні фотонні параметри кристалів твердих розчинів Tl1-xIn1-xSnx(S,Se)2. Встановлено, що зміна фізичних властивостей від молярного вмісту компонент x, пов’язаних з перебудовою зонної структури, значно розширює функціональні можливості кристалічних сполук Tl1-xIn1-xSnxS2 (x = 0÷0,5) і Tl1-xIn1-xSnxSe2 (x = 0÷0,25), як перспективних матеріалів оптоелектронних пристроїв.
Nunavik Sentinels: documenting northern insect biodiversity and supporting Indigenous youth leadership through participatory research and education
Authors: Grégoire Taillefer Amélie , Larrivée Maxim , Mlynarek Julia J. , Petawabano Haylee , Giroux Marjolaine 
Published: February 2024

Abstract
There is strong evidence that a biodiversity crisis is underway, fuelled by pollution, climate change, and invasive species. These impacts are especially important in northern Canadian regions. However, insect and other arthropod monitoring in Northern Canada urgently needed for land preservation is lacking. This paper presents the Nunavik Sentinels, a community-based participatory research programme (see definition, Table 1), that is aiming to fill those knowledge gaps while promoting collaboration among all stakeholders (organisations and members of northern communities, and scientists). Nunavik Sentinels is a unique insect-monitoring programme facilitated by the Montréal Insectarium – Espace pour la vie (Montréal, Québec, Canada), making entomology accessible to Indigenous youth by providing them with tools to lead expeditions in unexplored habitats and involving them in data collection. We present how this programme came to existence and its four-pillar framework (i.e., training land camp, summer employment, educational kit, and research). We touch upon how the programme is continually evolving. Finally, we demonstrate the benefits of the programme and how it will help better define the actions to be taken to prepare for future changes in northern biodiversity.
Well Completions Optimization Using Interventionless Packer Setting Device for HPHT Wells
Authors: Robertson Craig , Ab Latif Ahmad Syauki , Lorwongngam Apiwat Ohm , Yusoff Syukur , Scott Barry 
Published: February 2024

Abstract
The current oil and gas sector offers several situations where the operator’s innovation is crucial. The challenges posed by High Pressure High Temperature (HPHT) conditions require a different approach to completion design and practices to avoid well-control incidents, operational problems, and achieve full well integrity during its production lifecycle. For this specific project, the operator has also been searching for an alternative solution for their HPHT well that can optimize their rig time by eliminating the slickline plug run. This is due to difficulty experienced setting a slickline plug during previous completion operations. Although there are various technologies for packer setting devices for common wells, there are limited HPHT application products available in the market.
This paper will focus on an Interventionless packer setting device that eliminates intervention while carrying out well completion activities. This setting device is predominantly used for remotely setting a packer and/or enabling tubing pressure tests to be performed during completion deployment which does not require any offshore personnel. The full bore internal diameter (ID) access after opening the valve benefits the operator should they require any post-completion intervention run without limitation to the access in the string. The valve has reduced the rig non-productive time and risks associated with slick line deployments. The valve consists of a multi-cycle feature where a counter module is utilized allowing multiple pressure cycles to be applied without opening the ball. Also, note that the ball pivots to allow the completion string to self-fill while running in hole.
The Interventionless packer setting device comes with an equalization feature. The patented design ensures pressure is fully equalized before opening the ball ensuring maximum reliability. The valve is also highly debris tolerant to provide maximum performance in the harshest of environments.
Case history data will be presented to illustrate the success of the remotely opened packer setting device in North Malay Basin (NMB). This was the first time a HPHT Interventionless Ball Valve had been utilized for this well environment. However, the Interventionless Ball Valve has been used for over 20 wells to date for standard applications at a lower pressure and temperature. The operator has successfully saved 26 hours of rig time by using this valve for the HPHT application which equates to 5% or 26 hours of reduction in completion time and help with cost reduction by 3%.
Implementation of Decision-Making Process Improvement in Oil and Gas Development by A Context-Based Capital Value Process
Authors: Yananto H. , Pinosofa A. 
Published: February 2024

Abstract
The Capital Value Process is a typical business process in the oil and gas industry. Hierarchical and bureaucratic state-owned oil and gas companies make project development business processes take a long time. Long dynamic investment stages sometimes cause long-term oil and gas business development projects to be postponed, resulting in missed early production opportunities and higher capital expenditure. Existing decision-making processes may not consider oil and gas business development initiatives sufficiently, resulting in ambiguity and opposition to investment decisions.
Previous research used a soft system methodology based on action research and system dynamics with contextual-based capital value process results. The suggested conceptual model is designed to improve the decision-making process for upstream business development in state-owned enterprises (SOE). This study will look at the actual decision-making performance compared to the results of previous dynamic modeling simulations. The important conclusion drawn from these results is that delegation of threshold in decision-making at every level improves managerial decision-making.
Successful Decarbonization of Drilling Fluids by Using Highly Efficient Technology and Reduced Chemical Usage, Logistics, and Casing Sections
Authors: Jardinez Gerardo , Villamil Gerardo , Peralta Jose , Balcom Brian , Tiggelaar John 
Published: February 2024

Abstract
In accordance with the industry’s efforts to reduce its carbon footprint in all phases of operation, it has become vital to investigate innovative ways of reducing pollution to acceptable levels and to optimize drilling fluid usage and formulations. As the main us er of chemical products during the drilling phase, the drilling fluid has a significant effect on the carbon footprint, which is exacerbated when drilling fluid losses occur.
An innovative technology has proven to be a very efficient sealant, displacing a number of conventional materials used to reinforce the wellbore while drilling. Thus, the use of calcium carbonate, graphite, Gilsonite, and asphalt, among other products, has been significantly reduced or in some cases, eliminated, from the formulation of specific drilling fluids, due to a technology that provides a thin but highly competent shield that prevents the invasion of fluid and pressure into the formation, thereby expanding the operative window. This technology is used in the drilling fluid, so that every freshly drilled rock is immediately sealed with flexible particles thus preventing the start of fluid invasion and wellbore washout.
This technology enables the operator to reduce not only the amount of chemical products used in the drilling fluid, but also to save casing sections due to the increase in the operative window, prevent drilling fluid loss, reduce land and offshore transportation to the wellsite, and consequently reduce the supply chain process from the original source of the raw materials, manufactured products, to the end users at the rig site.
The average total amount of chemical products utilized per well drilled has decreased by 34%, which has a significant impact on the supply chain, including transportation, associated logistics, and raw materials, among other components.
In addition, each time a casing section is saved, the carbon footprint is lowered, saving casing section (steel production), cementing materials, wireline logging, rig days, logistics, and so on.
This paper will discuss the technological strategy chosen to deploy this sort of technology, the results obtained in terms of operations efficiency, and an estimated calculation of carbon footprint reduction per operation completed.
The materials previously used control potential drilling fluid losses were inflexible and sensitive to shear pressures, such as calcium carbonate, and their size was constantly changing, undermining their ability to form a dependable seal. In contrast, the focus of this research is selecting material that is flexible, making it resistant to shear forces. As it flexes to conform to the size and shape of the pore throat, the elastic capacity mitigates the uncertainties for the best design in a given particle size distribution pore throat.
Successful Deployment of Large Diameter Hybrid Drill Bit with Optimized Drilling Parameters Leads to Breakthrough in Days Saved
Authors: Herron A. , Abdelhamid A. , El-Touny S. A. , Kader M. Abdel , Hassan J. M. , Buloushi Z. A. , Al-Khaldy A. 
Published: February 2024

Abstract
The 22 in. vertical section in south-west Kuwait has traditionally been drilled with tungsten carbide insert (TCI) drill bits on rotary assemblies through limestones, dolomites and anhydrites, and commonly suffer severe or total losses before kickoff point (KOP) is reached. The losses and relatively slow rate of penetration (ROP) that is achieved with TCI drill bits results in high drilling fluid costs and extended periods spent waiting for water in order to build more mud.
The need to reduce flow rates to lower effective circulating density (ECD) renders drilling with a polycrystalline diamond compact (PDC) bit on a positive displacement motor (PDM) unrealistic as a method of achieving a higher ROP, and so a Hybrid Drill Bit solution on a rotary assembly was viewed as a means of reducing drilling time through enhanced ROP.
A 22 in. Hybrid Drill Bit was selected to drill the vertical section to KOP on a rotary assembly. The Hybrid Drill Bit drills much faster than a TCI bit but does not generate the high reactive torque levels of a PDC bit, and so can be run without a motor where flow rates are necessarily lower than ideal due to ECD considerations.
In the vertical rotary section of four wells, the Hybrid Drill Bit had an average ROP 300% higher than the average ROP of TCI bits in the field, and the benchmark Hybrid Drill Bit drilled 229% faster than the field TCI benchmark bit, with flow rates reduced as low as 500 gallons per minute with total losses.
These 22 in. bit runs represent the first time Hybrid Bits of this size have been run in west Kuwait and is a novel approach to the drilling challenges in these permeable formations and have delivered substantial savings in section cost.
Model-Based Petroleum Field Management in Three Stages: Life-Cycle, Short-Term, and Real-Time
Authors: Schiozer D. J. , Botechia V. E. , Pires L. C. O. 
Published: February 2024

Abstract
The objective of this work is to present a new practical methodology to manage petroleum fields considering three stages (life-cycle, short-term, and real-time) that can run alongside different model fidelities and characteristics. The model-based field management process follows the general methodology proposed by Schiozer et al. (2019) with four activities: (1) fit-for-purpose models construction, (2) data assimilation for uncertainty reduction, (3) life-cycle production optimization and (4) short-term optimization for real-time implementation. The selection of the production strategy for field management comprehends the last two activities. Life-cycle optimization is the first stage of the process and generates control setpoints for short-term analysis. Short-term optimization is then used to improve the quality of the solutions considering the control parameters of the next cycle (considering a closed-loop procedure). Real-time solution is then implemented considering operational disturbances from real operations. The methodology was applied to a benchmark case (UNISIM-IV-2026) which is a case based on a typical carbonate field from the Brazilian Pre-salt, with light oil and submitted to Water-Alternate-Gas injection with CO2 (WAG-CO2). The results show that the methodology is applicable to real and complex fields. As the three stages can run simultaneously, one can (1) use different model fidelities to improve the quality of the solutions and (2) use model-based solutions for real-time implementation. Life-cycle optimization using complex simulation models and long-term objectives can run in the background to generate control setpoints for short-term analysis in which lower fidelity models and simplified solutions can be used for the control and field revitalization parameters of each closed-loop cycle. Real-time solutions can be implemented considering operational problems and disturbances. This work presents a novel procedure to integrate three stages for production optimization that can run in parallel, allowing the integration of life-cycle and real-time solutions. The methodology (1) allows the use of complex reservoir simulation models from the life-cycle production strategy optimization, (2) focuses short-term control parameters that improve the quality of the short-term solution, and (3) guides real-time implementation, so it can be the basis to a digital field management.
Unlocking the Reservoir Flow Evaluation and Water Saturation in a Low Formation Water Salinity Using Production Logging and Pulsed Neutron Logging While Lifting the Well by Flow Jet Pump in an Oil Well of Wafra Joint Operations
Authors: Al-Jeri Jeri Mufarrej , Ali Abdullah Mousa , Al-Kaabi Hamad Mohammed , Ahmed Mohammed Ibrahim , Gobran Mahmoud Hamdy 
Published: February 2024

Abstract

Objectives/Scope
Wafra Joint Operations is a joint venture between Saudi Arabian Chevron and Kuwait Gulf Oil Company. Some of the wells in this area are completed by 7in casing and the artificial lift system is sucker road pumps. There is lack of production logging measurements due to the casing size constraint which is a barrier to use ESP with Y-tool to perform production logging surveys in these wells. Also, the determination of current water saturation behind these wells is challenging due to the low formation water salinity (formation water salinity is 4,000-20,000 ppm). Recently, the water-cut increased in these wells up to 100% and performing production logging is necessary to determine the water production source.

Methods, Procedures, Process
In this case study, Flow Jet pump technology was used to lift the well and perform combination of production logging and pulsed neutron-neutron surveys while flowing conditions as the first time in this area. This combination was successfully used to determine the contribution profile, the source of water production, and the current water saturation.

Results, Observations, Conclusions
The production logging measurements showed that all production is from two perforation segments and water hold-up is 100% across the two fluid entries. Crossflow was observed while shut-in conditions. Also, the pulsed neutron-neutron measurements showed high oil saturation against some of the non-contributing and some of the unperforated intervals. The active perforation intervals have been squeezed by cement, re-perforated some of the non-contributing intervals, and added some of the new intervals based on current saturation profile. The results of this well intervention showed a sudden drop in water-cut from 100% to less than 46% and high oil gain from the well.

Novel/Additive Information
The Flow Jet pump technology enabled the production logging and pulsed neutron-neutron measurements during flowing conditions. This will greatly affect the reservoir management and well-work plans.
Integrated Ensemble-Modeling Study Utilizing Well Surveillance Data and Interpreted Contacts for a Mature Malaysian Oilfield
Authors: Benton P. , Gunarto R. , Yaacob A. A. , Termizi A. , Zainal T. A. T. , Manan W. H. , Soni S. , Musani N. , Ducroux S. 
Published: February 2024

Abstract
The determination of economical sweet spots in a mature thin oil rim reservoir is an arduous task. To improve the chances of operational successes, a surveillance program was put in place for the Seligi field, consisting of the acquisition of data in the wells via static gradient surveys and behind-casing saturation logs. These surveillance data are designed to determine current contacts and this publication discusses their use as objective functions in the integrated uncertainty-centric ensemble-based modeling of the main reservoir J18/20 of this complex field.
The probabilistic approach implemented for the Seligi field relies on building a prior ensemble considering uncertainties in static properties and dynamic parameters. Then, using a Kalman-family algorithm known as Ensemble-Smoother with Multiple Data Assimilation (ES-MDA), the production data are assimilated and the ensemble converges towards all observed well data, including well logs, while quantifying the uncertainties. In the case of Seligi field contact acquisition program, the available contact data must be converted to water saturation logs and gas saturation logs. In total, 15 water saturation logs and 20 gas saturation logs taken at different times were included in the study.
The ensemble approach allowed a reasonable history-match of the 33 years of production data for all seven groups and over 170 wells after four iterations. It was also able to converge on the historical contacts supplied as objective functions. After review, adjustments were made to further improve the contact matching results on account of fluid allocation issues, especially with respect to the gas injection, and the simulated well control. Finally, 11 out of 100 posterior cases were selected based on their qualitatively superior match to the historical contacts. The ensemble provided a statistical understanding of the contacts presently in the wells and therefore of the location of the remaining mobile oil.
This subset was used to estimate the reserves associated with barrel-adding operational decisions such as idle well reactivations (IWR), workovers. It was also used for the design of infill wells, with a quantification of the subsurface uncertainties that are key to the assessment of the risks. Over 26 IWR opportunities and 10 infill locations were identified from the calibrated realizations. Finally, the ensemble provided some guidance for upcoming surveillance campaigns, to further de-risk these opportunities.
This study demonstrates that time-dependent data, such as contacts acquired with high density logs or electrical behind casing saturation tools, can be used efficiently in the calibration of an ensemble, thereby increasing the representability of the ensemble, the understanding with respect to the remaining oil column and the confidence in the next phases of development.
Prioritisation of Impactful Decarbonisation Programmes Across Existing Assets
Authors: Darrold Lim K. , Ong K. , Prabagar M. 
Published: February 2024

Abstract
As global warming continues to escalate with a potential extreme scenario of temperature rise by 4.5°C by the end of the century (IPCC, 2021), Paris Agreement was set into motion in December 2015 during the UN Climate Change Conference (COP21) in Paris, France to cut global GHG emissions and limit the increase in global temperature to 2°C by the end of this century. Globally, additional efforts are also underway to further limit the increment to 1.5°C. Committed to the Paris Agreement, PETRONAS has charted its Net Zero Carbon Emission 2050 Pathway.
From the PETRONAS’ Net Zero Carbon Emission 2050 Pathway, the company is committed to achieve net zero through its short-, mid- and long-term targets for GHG and methane emissions for Scope 1 and Scope 2 emissions reduction (with 2019 as the reference year). Scope 1 emissions are linked directly to the day-to-day asset operations while Scope 2 emissions refers to the consumption of energy in running the operations within the company.
In realising the company's short-term target of capping GHG emissions at 49.5 MtCO₂e for Scope 1 and Scope 2 emissions for Malaysia operations by 2024, a new centralised unit called Enterprise Decarbonisation has been formed to intensify and accelerate groupwide efforts. The unit and its collaborators groupwide have been assessing more than 300 decarbonisation ideas and programmes across the Enterprise according to the Decarbonisation Levers of Zero Routine Flaring and Venting, Electrification, Energy Efficiency and Carbon Capture and Storage (CCS).
The assessment, identification and prioritisation of impactful decarbonisation programmes were conducted via a three-step assessment process with the consideration of several key parameters such as meeting 2024 completion schedule, amount of carbon reduction and feasibility. The assessment provides the identification of approximately 70 impactful decarbonisations efforts for prioritisation out of an inventory of more than 300 programmes and ideas. The outcome of the assessment also provides indication that the most impactful programmes to accelerate decarbonisation efforts in meeting short-term 2024 GHG targets are from the lever of Energy Efficiency which accounts for the majority of the prioritised programme portfolio (68% of prioritised inventory), followed by Zero Routine Flaring and Venting (21% of prioritised inventory). The indications are plausible since the activities involved under both these levers are mostly focusing on operational improvements and minor brownfield modifications that could be completed within a period of 2 years, as compared to a typical Capital project.
To ensure the correct and optimal allocation of the organisation's resources, it is imperative that early analysis and prioritisation are adopted right from the beginning to identify the most impactful programmes as part of the quick-win solutions in meeting short-term targets, within the investment appetite of the organisation.