bluuebunny/crossref_metadata_2025 huggingface dataset:
ASSESSMENT AND CURRENT TRENDS OF ENSURING FOOD SECURITY IN UKRAINE
Authors: Kuzoma Vitalii
Published: October 2024

The research on Ukraine's food security is of paramount importance, as it directly impacts the national agro-food systems. The article delves into the current state of internal food self-sufficiency in the Ukrainian population, conducting an analytical assessment of export-import transactions with agricultural raw materials and food products. The findings reveal a significant trend of increasing food exports in recent years, along with an evaluation of the export-import coverage for the main types of food products.
Ukraine's place in the world rating of food security based on the Global Food Security Index was studied. The fundamental problems and reasons that determined Ukraine's decrease in the rating positions and the level of food security of its population were identified. In addition to the military conflict, Ukraine has a low economic availability of food products for the population and a low level of sustainability in the domestic agro-food system.
Despite the war's consequences, the agricultural business remains one of the most profitable economic activities in Ukraine. This analysis of individual indicators of the effectiveness of the country's agrarian sector as a basis for ensuring food security underscores the sector's potential.
 The modern production structure of the main types of agricultural products by categories of producers was studied. The key trends accompanying ensuring food security in Ukraine under modern conditions are summarized. It was revealed that food security in the crop sector is achieved at the expense of the public sector agrarian formations, mainly at the expense of households in the livestock sector. Based on the average values ​​of the actual consumption indicators, the state of providing the population with the main types of food was analyzed. The results showed problematic aspects in providing the country's population with meat and dairy products, fish, fruits, berries, and grapes. The priority directions for ensuring and strengthening food security on a national scale are substantiated. Among the main ones, the following are highlighted: the need to implement sustainable farming and animal husbandry practices, further improvement of the food quality management and control system, protection of biodiversity of ecological agrosystems, optimization and reduction of value chains, increasing the level of social responsibility of food producers and consumers.
DIGITALIZATION AS A FACTOR OF COMPETITIVENESS IN THE SINGLE INTERNATIONAL DIGITAL MARKET
Authors: Mekhovych Serhiy , Kuzmynskyi Konstantin , Pererva Oleksandr
Published: October 2024

The article deals with topical issues related to the creation of a single international digital market. The conditions under which the industrial complex of Ukraine should function in the near future are under the influence of globalization. The most influential factors of these processes are digital transformation, pandemic and military conflicts. Brief information on the essence of these processes is provided. It is noted that digitalization is carried out within the framework of economic policy, which in the EU is aimed at creating a single international digital market. The characteristic features of this process are given. The creation of a single digital market is one of the main prospects and challenges of our time. Digitization has created a world without borders, and its implementation requires a new form of management based on its specific properties. This process requires solving a number of practical and political issues in the economic and trade relations of the international community. Ignoring these processes, or biased assessment in approaches to their implementation can lead to catastrophic consequences in ensuring the competitiveness of individual enterprises, regions and the entire country. It is noted that the problem of regulating the single digital market is to ensure the possibility for the single market to work in the digital world in the same way as in the analog one. This means ensuring better access for consumers and companies to electronic goods and services throughout the EU, as well as creating conditions for the development of digital networks and services and maximizing the growth potential of the EU's digital economy.
THE SITUATION ON THE UKRAINIAN RESIDENTIAL REAL ESTATE MARKET IN THE PRE-WAR AND WAR PERIODS
Authors: Pavlov Kostiantyn , Novosad Oksana , Semenov Nazar , Vozniuk Yulia , Mishchuk Yuliia
Published: October 2024

The War and the Ukrainian Housing Market: Overview and Forecasts: The article examines the domestic housing market dynamics in the pre-war and war periods. Quantitative indicators of the housing stock of Ukraine are analyzed, and their dynamics and structure are highlighted. The State Program "eRestoration": The Way to Housing Restoration: The features of implementing the "eRestoration" program aimed at compensating damaged and destroyed housing are considered. Trends in price changes in the primary, secondary, and rental housing markets in different regions of Ukraine are substantiated and conceptualized. Resumption of construction: Dynamics and prospects: The article examines aspects of the resumption of construction in Ukraine: the number of residential complexes sold in 2023 and apartments put into operation are analyzed. The state's role in the recovery of the housing market emphasizes the critical role of the state in stimulating the development of the housing market and providing affordable housing for people who lost it due to the war. Housing market: challenges and prospects. 1. Functioning of the housing market: the housing market as a system of economic relations; its role in stimulating savings, redistribution of resources, and investment; the impact of the war on the domestic housing market. 2. Market trends in 2023: growing demand for ready or almost ready housing; higher real estate prices, especially in the western regions; internal and external population migration; slow construction and accumulation of pent-up demand. 3. Future forecasts: stabilization of the market in the absence of escalation of the war; conversion of pent-up demand into new transactions; price correction; opportunities for further market development; stimulation of demand for housing and commercial real estate; development of urban infrastructure. 4. The role of the state: the leading role of the state in the formation of the regulatory framework; implementation of programs to eliminate imbalances in housing provision; elimination of the adverse effects of the war; 5. Conclusion: The restoration and development of the housing market of Ukraine is a complex task that requires joint efforts of the state, businesses, and citizens. Improving the uniqueness of the text: new subheadings were added to improve the structure of the text; more dynamic and emotional words and phrases were used; author's opinions and analytics were added; specific examples and statistics were provided; complex sentences were rephrased to improve readability; a different writing style was used to emphasize the author's handwriting.
MODELING THE ECONOMIC EFFICIENCY OF THE PROCESS OF MANAGING STRATEGIC CHANGES FOR THE FORMATION OF COMPETITIVE ADVANTAGES OF THE ENTERPRISE
Authors: Pererva Oleksandr , Mekhovych Serhiy , Kobeleva Tetyana , Savchenko Olga , Kramskoi Dmytro
Published: October 2024

The article discusses the process of modeling the economic efficiency of management of strategic changes at industrial enterprises in order to form competitive advantages. The key aspects of the system approach to strategic change are analyzed, including the analysis of the internal and external environment, goal setting, development of models of economic efficiency and continuous monitoring of results. Particular attention is paid to the use of financial and non-financial indicators for comprehensive evaluation of the effectiveness of changes. It is substantiated that modeling the economic efficiency of management of strategic changes is an important tool for achieving long-term success and formation of sustainable competitive advantages of industrial enterprises. It is proved that modeling the economic efficiency of the process of managing strategic changes is an important tool for achieving and maintaining the competitive advantages of enterprise. The use of financial and non-financial indicators allows you to objectively assess the effectiveness of the implemented changes and make informed decisions. Successful implementation of strategic changes contributes to improving the efficiency of the enterprise, customer satisfaction and overall competitiveness in the Market. The conclusions of the article contain recommendations for the development and implementation of systematic approaches to the management of strategic changes, the use of innovative technologies, taking into account complex performance indicators and maintaining the flexibility and adaptability of enterprises.
PROSPECTS OF RATIONALIZING THE ORGANIZATIONAL STRUCTURE OF THE ENTERPRISE IN THE CONDITIONS OF THE DIGITAL ECONOMY
Authors: Rudenko Viktoriia
Published: October 2024

In today's digital economy, businesses need to adjust their organizational structures to effectively manage and stay competitive. This article discusses the need to move from traditional rigid models to flexible, decentralized management structures. Key aspects include adaptability, flexibility, decentralization, and integration new technologies. Employing system analysis as a scientific approach to studying complex systems helps find optimal solutions to increase efficiency, cut costs, and enhance competitiveness in the digital economy. Streamlining organizational structures is a major challenge for companies striving to remain competitive and efficient in a dynamic digital environment.
DEVELOPMENT OF METHODS FOR PLANNING THE COST OF INDUSTRIAL PRODUCTION AND WAYS TO REDUCE IT
Authors: Chernyshenko O. , Kobeleva T. , Poliakova T.
Published: October 2024

In the current market economy conditions, the effectiveness of industrial enterprises largely depends on their ability to compete, which is closely linked to the cost of production. In this context, the planning of industrial goods' costs becomes a key aspect that influences pricing, profitability, and consequently, the stable financial position of the company. The relevance of developing effective cost planning methods and finding ways to reduce them is undoubted and driven by the need to increase competitiveness in domestic and international markets.
ANALISIS PENYEBAB KECELAKAAN KERJA PADA PEKERJA KONSTRUKSI
Authors: Sari Ica Yuniar
Published: October 2024

Pembangunan infrastruktur di Indonesia terus meningkat setiap tahun, mengingat wilayah kepulauan yang memerlukan manajemen dan pengembangan untuk mendukung ekonomi berkelanjutan. Artikel ini membahas kompleksitas kegiatan konstruksi, dengan fokus pada keselamatan dan kesehatan kerja (K3) sebagai aspek kritis. Penelitian menggunakan metode studi literatur untuk mengidentifikasi penyebab kecelakaan kerja di sektor konstruksi. Hasil studi literatur menunjukkan bahwa jenis kecelakaan yang sering dialami oleh pekerja konstruksi melibatkan tertimpa benda, tertumbuk, terjepit, gerakan melebihi kemampuan, suhu tinggi, terkena arus listrik, dan kontak dengan bahan berbahaya. Penyebab utama kecelakaan termasuk bekerja dalam kondisi tidak sehat, perbuatan pekerja yang berisiko, keengganan menggunakan Alat Pelindung Diri (APD), dan kurangnya pengetahuan K3.Metode pencegahan kecelakaan termasuk pemeriksaan kesehatan, pelatihan K3, penggunaan APD, isolasi operasi berbahaya, dan pengaturan ventilasi. Pembahasan menyoroti faktor yang memengaruhi keputusan pekerja untuk tidak menggunakan APD, seperti tekanan fisik, kurangnya penjelasan risiko pekerjaan, dan kurangnya perencanaan keselamatan kerja. Pelatihan dan penggunaan APD terbukti berpengaruh negatif terhadap kecelakaan, sementara kesehatan pekerja juga memainkan peran penting. Kesimpulan menunjukkan pentingnya peningkatan pengetahuan K3, implementasi sistem manajemen K3, dan perhatian terhadap faktor kesehatan, pelatihan, dan penggunaan APD. Rekomendasi termasuk perhatian lebih besar terhadap faktor-faktor tersebut, peningkatan program K3, dan sosialisasi yang lebih efektif di perusahaan konstruksi
IMPLIKASI INTENSITAS PENCAHAYAAN TERHADAP KELELAHAN MATA PADA PENJAHIT
Authors: Maharja Rizky , Juliawan Agung , Latief Ade Wira Lisrianti , Maharja Riadnin , Panggeleng Andi Mifta Farid
Published: October 2024

Intensitas pencahayaan memegang peranan penting dalam lingkungan kerja penjahit karena pekerjaan mereka sering melibatkan tugas-tugas yang membutuhkan ketelitian. Dampak kondisi ini menjadikan penjahit mengalami kelelahan mata.  Penelitian ini bertujuan untuk menganalisis implikasi intensitas pencahayaan terhadap kelelahan mata pada penjahit. Jenis penelitian adalah observasional analitik dengan desain cross-sectional.Adapun teknik pengambilan sampel menggunakan total populasi yang berjumlah 31 orang. Instrument yang digunakan adalah lux meter untuk mengukur intensitas pencahayaan dan kuisioner untuk mengetahui kelelahan mata penjahit. Hasil menunjukkan bahwa intensitas pencahayaan tergolong rendah yaitu <200 lux dan sebanyak 22 orang (71%) penjahit mengalami kelelahan mata. Uji statistik menunjukkan p-value 0,0001 yang berarti terdapat pengaruh intesitas pencahayaan dengan kelelahan mata. Penelitian ini menyimpulkan bahwa terdapat implikasi intensitas cahaya terhadap kelelahan mata
PAPARAN DEBU DAN RISIKO GANGGUAN FUNGSI PERNAFASAN PADA PEKERJA DI INDUSTRI PENGOLAHAN BIJIH MINERAL: TINJAUAN LITERATUR SISTEMATIS
Authors: Susanto Arif , Yudhiantara Muhamad Rizky , Putro Edi Karyono , Kara Prayoga , Manuel Anthony Andorful , Hidayah Nurulia
Published: October 2024

Pengolahan bijih mineral melibatkan beberapa proses yang menghasilkan debu, seperti penggilingan, penghancuran, dan flotasi. Debu yang dihasilkan, terutama partikel berukuran <10 μm, dapat terhirup dan terdeposit di paru-paru, sehingga berisiko menyebabkan penurunan fungsi pernafasan. Namun, berbagai faktor dapat mempengaruhi tingkat efek paparan debu terhadap kesehatan pekerja. Penelitian ini dilakukan dengan metode tinjauan literatur sistematis, menggunakan kata kunci “mineral ore processing”, “dust exposure”, dan “impaired lung function”. Pada basis data ilmiah seperti Science Direct, Google Scholar, dan ProQuest. Artikel ilmiah yang dipublikasikan antara tahun 2020 hingga 2024 menjadi fokus kajian. Hasil pemetaan literatur berdasarkan PRISMA-ScR menunjukkan sebanyak 15 artikel ilmiah relevan telah dianalisis. Penelitian ini mengkonfirmasi bahwa debu di industri pengolahan bijih mineral menjadi risiko kesehatan pernafasan yang signifikan bagi pekerja. Paparan debu dapat menyebabkan masalah kesehatan dari penurunan fungsi pernafasan hingga Penyakit Paru Obstruksi Kronis (PPOK). Komposisi kimia dan konsentrasi debu respirabel yang bervariasi, serta faktor lingkungan seperti kelembaban dan arah angin, turut mempengaruhi tingkat pajanan debu terhadap pekerja. Oleh karena itu, pengendalian debu secara efektif pada sumbernya dan penerapan manajemen risiko yang baik menjadi sangat penting untuk mengurangi paparan debu terhadap pekerja dan mencegah terjadinya penurunan fungsi pernapasan.
El reconocimiento del derecho de sindicalización de la Policía Nacional del Perú
Authors:   , Aparco Delacruz Miguel , Donohue Cervantes Alejandro Gabino
Published: October 2024

La Policía Nacional del Perú es una institución que ha evolucionado a través del tiempo, ya que se creó como resultado de la independencia del Perú, sin embargo, los derechos laborales de los miembros de la institución no fueron considerados como importantes, por lo que, no podían ser exigidos. En ese contexto, la presente investigación busca que, a través del reconocimiento de la sindicalización de los miembros, esta institución respete los derechos laborales y exista un espacio para la negociación de aquellos derechos que por muchos años han sido ignorados, como: el no reconocimiento de pago en jornada nocturna ni horas extras y no contar con indumentaria de seguridad o uniformes para proteger la integridad de los miembros, etc.
Implementación de micro frontends para optimizar el desarrollo web de la capa frontend en la empresa HM Consulting, 2022
Authors:   , Rivas Seminario Heyner David , Benavides Cabrera Alexander
Published: October 2024

El presente estudio tiene como objetivo medir la influencia de una arquitectura basada en Micro Frontends en el desarrollo de la capa frontend, para este fin se realizó un estudio en la empresa Hm Consulting tomando como objeto de análisis para un pretest al monolito frontend de dicha empresa y contrastándolo con el post test habiendo aplicado una arquitectura basada en Micro Frontends. La investigación es de naturaleza aplicada con orientación cuantitativa, implementando un diseño preexperimental de carácter longitudinal, se desarrolló una ficha de observación para el levantamiento de datos la cual fue validada por tres expertos. Se utilizaron 15 módulos del sistema web contable monolítico como muestra. Para esta investigación se usó la ficha de observación como instrumento, la cual fue validada por el juicio de expertos. Para ratificar la confiabilidad del instrumento se hizo a través del coeficiente de confiabilidad de Pearson obteniendo valores de 0.904 y 0.890 para la dimensión de compilación y despliegue respectivamente, lo cual indica que es una confiabilidad muy alta debido a que el valor es muy cercano a 1. Asimismo, se pudo evidenciar a través del análisis del coeficiente de variabilidad, que los tiempos medios de la compilación y despliegue para el pretest son valores muy altos por encima de los 130000 milisegundos, mientras que para el post test rondan los 25000 milisegundos lo cual significa una mejora de más del 80% en tiempos de acuerdo con lo evidenciado en nuestros resultados. Usando la prueba de normalidad de Shapiro-Wilk la cual es ideal para muestras pequeñas se obtuvo un sig<0.001 para la dimensión de compilación, de la misma forma de obtuvo un sig.<0.001 para la dimensión de despliegue, lo cual demostró que la implementación de Micro Frontends reduce considerablemente el tiempo de compilación y despliegue en el desarrollo frontend.
The Success Story of ESP Advanced Technology Application to Address the Risk of Well Inflow Capability Uncertainty Using a Wide Range and Abrasive-Resistant ESP in the B and K Fields
Authors: Pasaribu R. , Purba M. O. , Anggaraini H. , Alkahfi S. , Fatichin F. , Rahmanto B. , Junaidy I. , Andri F. , Abadi F.
Published: October 2024

The B and K Oil Fields, situated in the Riau Province of Indonesia, present distinct operational challenges due to their varying characteristics and common issues. The B field operates as a waterflood field, while the K field is characterized by its primary heavy oil production. Both fields, however, suffer from significant reservoir compartmentalization, leading to uneven well-inflow capabilities and persistent problems with sand and gas intrusion.

To address these challenges and maximize production rates, several wells in the B and K fields are being considered for Artificial Lift Conversion (ALC) from Sucker Rod Pump (SRP) to Electric Submersible Pump (ESP). The transition to ESPs aims to enhance production rates, yet the uncertainty in well-inflow capabilities poses a risk of early pump failure and low-inflow problems. Traditionally, a Variable Speed Drive (VSD) is employed to mitigate low inflow by adjusting the production rate. However, this approach introduces additional complications related to VSD resource prioritization.

Given these complexities, there is a pressing need for a new method or technology to reduce the uncertainty in well-inflow capabilities. This would enhance pump reliability, increase production rates, and optimize the allocation of VSD resources. The proposed solution involves the implementation of an abrasive-resistant ESP technology designed to operate efficiently across a broad flow range, addressing both sand and gas issues and improving overall well performance.
Evaluating Performance of 400 and 538 Series High-Speed High Gas-Volume-Fraction MultiPhase Pumps
Authors: Ejim C. E. , Banjar H. M. , Lee W. Y. , Zabala W.
Published: October 2024

High-speed operation of electric submersible pumps (ESPs) are becoming common practice in oilfield operations. Installing high-speed high gas volume fraction (GVF) multiphase pumps (MPPs) will facilitate production from wells with high gas content. This study uses gas-liquid parameters to obtain dimensionless curves from various physical tests of high-speed, high GVF MPPs. The application benefits include sizing by field and design personnel to ensure required production delivery at the desired MPP setting depths.

Two high-speed, high GVF MPPs, with 4.00-inch and 5.38-inch housing diameters, were physically tested and operated at 6,000 revolutions per minute. For the 4.00-inch housing MPP, the intake pressure varied from 26 to 70 psig, whereas intake pressure was 46 psig for the 5.38-inch MPP. The range of water volume flow rate was 63 to 660 barrels per day (BPD), and intake GVF varied from about 84% to 98%. Energy and turbomachinery principles were applied to the test data to obtain dimensionless head and flow performance curves for each MPP. The curves were validated from estimating pump boost pressures.

The results showed that the trend in variation of dimensionless head coefficient with the dimensionless volume flow rate depends on the method in which the tests were performed. For the 4-inch MPP, tested at constant liquid volume flow rate while varying intake pressures and GVF, the dimensionless head coefficient increased with increasing dimensionless volume flow rate. It was observed that all the dimensionless test data collapse on one another. For the 5.38-inch MPP, tested at constant intake pressure while varying liquid and gas volume flow rates, the dimensionless head coefficient decreased with increasing dimensionless volume flow rate. All the dimensionless test data for the pump were also observed to collapse on one another. Validation of the dimensionless performance curve for each MPP showed that the curves can be used to determine, with good accuracy, dimensionless head coefficients and corresponding pump boost pressures for given flow and operating conditions. In conclusion, the method presented in this study has beneficial field design application in establishing performance of high-speed MPPs operating in high GVF environments.

This study highlights the benefits of obtaining dimensionless characteristics in general and specifically for high-speed, high-GVF MPPs, using fundamental, physics-based techniques. Application of the performance curves obtained from this technique can be used by design engineers and field personnel to size high-speed, high-intake GVF MPPs operating at any setting depths. This is beneficial to the operator to optimize production and maximize the economic bottom-line from the field asset.
From Challenges to Solutions: An Innovative Approach to Rod Lift Installation in Difficult Well Conditions
Authors: Cepeda F. A. , Zahran A. M. , Alsayed M. , Setiadi B. W. , Taha S. M.
Published: October 2024

The deployment of artificial lift systems is fundamental in extending the productive lifespan of unconventional fields. Rod lift systems, among the most prevalent artificial lift mechanisms, typically follow standardized deployment procedures globally. However, unique challenges in certain wells necessitate deviations from conventional practices. This paper describes the design, planning, and execution strategies employed in the successful deployment of continuous rod lift systems under challenging well conditions, while also disseminating lessons learned to refine future procedures. Rod lift pumping, a basis of artificial lift methodologies, symbolizes the oil industry with its conventional surface units. Despite its widespread application, introducing this technology in certain environments presents novel challenges due to unique well conditions, rigorous safety regulations, and pre-established operational standards. Adverse conditions such as high concentrations of hydrogen sulfide and significant gas-liquid ratios, compounded by internal safety and operational mandates, pose substantial complications in the installation of rod lift systems, whether standard sucker rods or continuous rods. A novel deployment strategy, integrating custom-designed pressure control equipment stack, was developed to navigate these obstacles effectively, ensuring safe and efficient well completion. An extensive period of discussion on overcoming the multifaceted challenges of well conditions, followed by a meticulous equipment selection and procurement phase, culminated in the successful deployment of the Rod Lift system under full pressure containment. This breakthrough has laid the groundwork for subsequent installations, signifying a crucial advancement in the artificial lift program. The innovative aspect of this procedure is its adaptation to complex well conditions within a shale play, marking a significant departure from traditional artificial lift system implementations. The insights gleaned from this endeavor offer valuable guidance for future rod lift system deployments in the under same challenging conditions.
Improved Process for ESP Dismantle, Inspection and Failure Analysis (DIFA)
Authors: Pessoa R. F. , Alsaif A. , Al-khalifa M. , Elbarkatawy A.
Published: October 2024

Dismantle, Inspection and Failure Analysis (DIFA) of Electrical Submersible Pumps (ESP) has driven operating companies as one of their key improvement factors for ESP run life. In this paper, an improved process and lessons learned of DIFA over 25 years will be presented.

Establishing failure mode, as per API RP 11S1 guideline, ensures the ESP DIFA is conducted in a structured and methodical manner. Generally, during DIFA three key pieces of information are considered, i.e., the failed item(s), failure mechanism and finally the failure root cause or causes. In addition, the history of the equipment installed, the well data, the completion geometry and any surface or downhole constrains are also used as very important part of the data needed for the DIFA of each well.

The improved process is not only applicable for the primary failed component mode but extends to the expected second or third components and also considers their failure modes even if the equipment survived the current failure. A comparison of the ESP technologies, in terms of failure mode and run life has been conducted. Individual component failure with respect to other technology alternatives is compared to derive a relative advantage achievable in run life of the system. Such comparison is saved in a database for equipment selection criterion which can be used as a tool during the initial design phase of other ESP systems that will be implemented in various environments, either mild or harsh. A relative comparison is shown with the same component completion in different location with similar environment. A DIFA alert process with lessons learned and recommendations has been established in order to communicate with all different parties involved or affecting the ESP lifecycle.

This technical approach keeps all organizations focused on maximizing ESP reliability while promoting motivation and a competitive environment for ESP vendors to do its best. The result is a reduction in failure rate and improved ESP run life which directly benefit the economics of both ongoing and new artificial lift projects.
Variable Speed Drive In-Field Upgrade to Operate PMM
Authors: Zamesin Evgenii , Nesterov Sergei , Abualsaud Muhammad , Rakovskii Roman , Mechsheriakov Ivan , Nambiar Vijay
Published: October 2024

Majority Variable Speed Drives (VSD) currently deployed in various fields are designed specifically for running induction motors. Yet, with the growing application of permanent magnet motors, there arises a demand for VSDs built on a distinct operational framework. However, replacing existing drives with ones compatible with permanent magnet motors poses significant economic and logistical challenges. This paper explains the methodology involved in on-site retrofitting VSDs to turn them compatible with permanent magnet motors.

VSD retrofitting stategy is based on three major principles: leveraging existing drive capabilities for technical advantage, cost efficiency, and streamlining logistics and footprint.

On the technical front, upgrading conventional drives deployes integrating PMM-compatible components, faster IGBTs, modern HMI controllers, and output Sine Wave Filters. This unified approach enables on-site modification of VSDs regardless of brand, whether in onshore or offshore environments. Prior to implementation, a thorough prejob inspection customizes the procedure to suit each drive's unique dimensions, shape, and condition.

Economically, a lean approach maximizes original components and preserves OEM-specified technical features, ensuring optimal cost-effectiveness.

The primary result of VSD modification is achieving of compatibility with Permanent Magnet Motors while minimizing intervention and cost, keeping technical parameters either unchanged or improved. Post-upgrade, VSD becomes capable of operating at frequencies up to 300 Hz enabling application of ultra high-speed ESP for increased production. The incorporation of a modern HMI controller, featuring a user-friendly color display, extends standard protections and mitigates a risk to human error. Retaining the VSD's original rectifier ensures THD level stipulated by the VSD OEM. The addition of the system with a Sine Wave Filter further enhances power quality and contributes to the extended operational life of ESP.

The technical enhancements achieved through modification are balanced with the project's cost and resource allocations, thereby minimizing materials and streamlining operational processes.

From a logistical perspective, the elimination of heavy machinery dependencies, such as trucks, forklifts, cranes, and barge-cranes, results in a notable reduction in both financial expenditures and project timelines.

Consequently, this methodological procedure offers a pragmatic upgrade of field infrastructure with PMM compatible drives in the most eco-friendly way.

The retrofitting of conventional VSD presents a comprehensive transformation opportunity for Artificial Lift systems, yielding numerous financial benefits. A seamless transition from induction motors to PMM streamlines the cost per barrel, while leveraging existing inventory enables the immediate embrace of technical advancements without delay.
Leveraging Circular Economy Principles for Electrical Submersible Pump Equipment
Authors: Alhashem M. , Al-Aseef S.
Published: October 2024

This paper presents a comprehensive analysis of implementing circular economy principles in the electrical submersible pump (ESP) industry to enhance sustainability and reduce carbon footprint. Focusing on the Dismantle, Inspection, and Failure Analysis (DIFA) process, the study quantifies its impact on carbon emissions and evaluates key practices, such as component refurbishment and recycling. The research examines how collaboration between vendors and customers for failure analysis generates valuable insights, leading to enhanced product life and decreased manufacturing requirements. The findings demonstrate significant reductions in carbon dioxide (CO2) emissions associated with rig operations and component production. This research contributes novel insights into ESP afterlife and circular business models, filling a gap in petroleum industry literature and offering a framework for sustainable practices in artificial lift systems.
Workflow for Cost-Effective Reactivation of Low-Flow Wells in Deep and Mature Fields Using Compact Units for Sucker Rod Pumps
Authors: Guillca L. N. , Reyes C. , Enriquez L. , Batallas E. , Tagarot G. , Fraga R. , Charry A. M. , Landi R. , Caballero L. Salazar
Published: October 2024

This document gives a brief technical description of the mechanical pumping system and important technical definitions, then it summarizes a workflow developed to achieve a cost-effective method for reactivating low potential wells (under 150 oil bbl./day) in a mature field.

The workflow includes the decision process to either reactivate the well rigless or with a workover rig. It also includes the ben-efits of using a compact, easy-to install and operate surface unit.

The challenges encountered in the field include depths exceeding 9,000 ft true vertical depth (TVD), over 9,500 ft measure depth, temperature surpassing 230°F, high tortuosity and oil API between 11° to 32° API.

With an implementation in eight units, we achieved 106,000 oil bbl. during the pilot test, and a cost reduction of between 40 and 55% and other benefits, such as interventions in neighboring wells and reduced installation times.

Finally, the results in terms of benefits, lessons learned and best practices for reactivation with these compact units are shown.
Data-Driven Monitoring and Optimization of an Intermittent Gas-Lift Operation
Authors: Shresth K. , Bhatt B. , Vadivel K.
Published: October 2024

Gas lift is an extensively used artificial lift technique in the oil and gas industry. However, operators often shift to intermittent gas lift for low productivity index, reservoir pressure or high-water cuts, or due to the limited availability of gas (IGL). These wells have unique dynamic behavior and are generally not high producers, often lacking monitoring and surveillance, which leads to suboptimal production. Using a simulation-based method can incur excessive computing expenses that sometimes might not be justified. This paper presents an approach that combines data-based models, numerical methods, and machine learning-based algorithms to monitor and optimize IGL operations.

This process uses readily available operational data to estimate the well rates using API RP 11 V10 recommended methodologies and allows for careful monitoring of injection and shut-in phases in IGL wells while coordinating injection schedules between neighboring wells. The solution primarily consists of the following: an empirical equation with adaptable parameters that are designed to forecast the daily production rate of IGL wells, a numerical algorithm that proposes the optimum shut-in and injection period to maximize the production rate of an IGL well, and a genetic algorithm that minimizes the disturbance to a compressor that supplies compressed gas to the adjacent wells by synchronizing their injection schedule. The advanced genetic algorithm can also conduct binary-based scheduling to achieve a more streamlined control process that minimizes the total number of simultaneous injections.

The implementation of this solution has led to significant time savings, delivering a considerable improvement in operational efficiency and a noticeable increase in production. Real-time monitoring of the parameters provides numerous insights for IGL surveillance. Previously, the operator's approach was more reactive, and field engineers had to depend on ad-hoc hit and trial methods upon encountering such issues. The tests that could provide diagnostic signatures about the well performance used to occur occasionally, sometimes only once a year. These tests involved two or three pen recorders, tagging the fluid level using wireline tools, carrying out long cycle studies, bottom hole gradient surveys, etc. Now, using the real-time data monitoring and outputs from the solution, operators can troubleshoot and optimize the IGL operations remotely, which has led to proactive operations management, limiting the number of field visits. These operations have reduced the operational cost, HSE risk exposures, and carbon footprints.

This solution combines various technologies and methods to address challenges in the surveillance and optimization of intermittent gas-lift wells. The solution enables users to monitor important parameters, estimate daily production rates, determine optimum gas injection cycles, and schedule gas injection cycles to minimize gas injection overlap between the wells.
Safety First: Best Practices in ESP Project Management for HSE Excellence
Authors: Alghamdi Albaraa , Villarreal Leigber Rivera , Leon Jaime Pena , Alomran Abdulaziz Y.
Published: October 2024

This paper aims to present a detailed and practical safety management procedure for surface and subsurface Electrical Submersible Pump (ESP) systems. The safety procedure covers all aspects of the ESP project, from equipment procurement to commissioning, while ensuring the highest Health, Safety, and Environment (HSE) standards are met at the lowest cost.

The procedures were developed following the highest HSE standards. Behind any successful ESP deployment project, several activities must be performed safely to guarantee successful project delivery. Comprehensive safety and inspection measures were developed and implemented in each activity starting from the ESP supplier facilities to field installation and commissioning. Most importantly, all safety measures are documented, certified, and revisited frequently by all stakeholders to ensure the highest levels of safety at all times.

The comprehensive safety management procedure resulted in a track record of successful ESP project deliveries without incidents. The procedure includes details on (1) Revising equipment specifications and equipment test certificates to confirm compliance with operating company and international standards, (2) Attending Factory Acceptance Tests (FAT) of manufactured equipment, (3) Inspection before and after equipment delivery, (4) Performing multi-level pre-energization checks, (5) Issuing energization certificate, (6) Conducting final walkthrough by all concerned stakeholders, (7) Performing final pre-commissioning to validate safety and ESP functionality before commissioning. The paper presents a detailed account of the entire process and can be used as a reference for oil and gas operators to achieve HSE excellence.

This paper presents a comprehensive list of safety and technical checks for complete ESP equipment delivery, adding to the existing body of literature on ESP project management. The procedures presented in the paper go beyond standard practices, ensuring the highest HSE standards are met at the lowest cost. It offers valuable insights and recommendations to the oil and gas industry, helping operators achieve their HSE goals while delivering successful projects.
Shale Gas Field Production Optimisation Decision Making and Intelligent Dewater Production Technology
Authors: He Zuqing. , Liu Wei. , Zhou Zhongya. , Liu Huanle. , Zhou Chao. , Zhou Penghui.
Published: October 2024

With the deepening of shale gas field development in Nanfang gas field, there are more and more low-pressure and low-production gas wells, and the current drainage and gas extraction process is not well adapted to the exploitation of the gas field, for this reason, the drainage and gas extraction completion technology of Fuling shale gas wells will be systematically tackled, so as to effectively support the long-term stable production of this shale gas field.Scope:shale gas field and other unconventional gas reservoir.
Enhancing Reliability in Sucker Rod Pumping System: Understanding Premature Failures and Implementing Sustainable Solutions
Authors: Al Abri Ahmed T. , Al Badi Said S. , Al Hinai Nasser , Al Abri Ahmed N. , AL Busaidi Khalfan , Khemnar Atul
Published: October 2024

Daleel Petroleum is operating an oil field in the northern region of Oman. Sucker rod pumps drive most of its production. While, most of wells have smooth commissioning time, considerable number of them experience premature failures in less than 90 days. This paper offers Daleel Petroleum experience and methodology in failure's root cause analysis and the integrated solutions that enhanced the run life and reduced the failure rate.

A comprehensive analysis was conducted to understand the failure root causes and the best recommended practical solutions that integrate the surface unit and downhole pump completion. The analysis focused on three main areas which are prior the pump installation level, which include the well cleanout program, sucker rod installation level and post failure analysis area. Thus, the pump mineralogy, installation and running in hole procedures optimized along with aligning the compatibility of the used materials with the well's downhole conditions. Accordingly, the pump's material and grade tested to ensure it is compatible with the different reservoir fluids and the surface unit installation checked to get the right alignment with minimum vibration. The pump design, running hole and installation procedures optimized to have the best efficiency with lowest cost. On the other side, the failed pumps dismantled and the pump's running data analysed to identify the failure leading causes and enhance the pumps overall performance.

The collaborative enhancements across various levels have significantly extended pump run life and markedly reduced failure rates. Key modifications included upgrading downhole pump materials to endure challenging well conditions, such as high water cut, solids production, and corrosive environments. Additionally, the optimization of installation and RIH procedures was aligned with the manufacturer's guidelines and API standards. The wellbore cleanout program was also enhanced to ensure a clean bottom hole before pump installation. These integrated modifications have resulted in a more than 30% reduction in failure rates and a 20% increase in average well run life over a three-year period. Furthermore, deferment and workover costs have been reduced by minimizing intervention times.

This paper offers comprehensive root cause analysis of premature failures at Daleel petroleum at different levels (pre- pump installation, during and post installation stage). The paper presents integrated and effective solutions implemented in North Oman to enhance the run life, reduce the failures and the deferment and optimize the workover cost.
Ultra-High-Speed Applications: Stepping Beyond Traditional Approach
Authors: Shakirov Anton , Alexeev Yaroslav , Al-Salahi Zaid
Published: October 2024

Ultra-High-Speed (UHS) Electric Submersible Pumps (ESP) Systems have grown in popularity in recent years for providing synergy benefits of high-speed rotation and centrifugal pumping concept. This study intends to demonstrate how UHS operation can leverage its advantages beyond traditional approach to address issues in oil and gas wells through application of various pump types. Authors reviewed three revolutionary concepts for future UHS pumps including Vortex, Helico-axial and Boundary Layer design, to validate their application range at ultra-high speeds. In addition, to highlight the enhanced capabilities and performance of Centrifugal UHS ESPs under varying operational conditions. Authors conducted in-depth case studies in three fields, one each from Africa, Europe, and North America.

Features of UHS operation (10,000-15,000 rpm) can be found across different components of the downhole system. The research has brought more focus on pump and pumping method design for sand containing gas-liquid mixtures. Various designs of multiphase pumps and their combinations may deliver unique features that cannot be reached with standard-speed applications. Study results represent detailed application range matrix for high gas, high sand and traditional centrifugal pump designs under ultra-high-speed operating conditions.

Results of this study demonstrate the superiority of ultra-high-speed pumps over their standard counterparts resides in their capacity to meet the increasingly stringent demands of modern industrial applications. This advantage stems primarily from their enhanced efficiency and performance metrics, which manifest across multiple operational dimensions. Project findings have brought new insights and perspectives into pumping fluids for both oil and gas/gas-condensate wells, with some of them having been partially tested.
WITHDRAWN: New Breakthrough in Triple-Negative Breast Cancer Treatment: A Study on the Clinical Efficacy and Safety of the Combination of Carrilizumab and Apatinib in Dual-Targeted Neoadjuvant Therapy
Authors: YIN Yulai , ZHANG Xiaoyu
Published: October 2024

The full text of this preprint has been withdrawn by the authors as it was submitted and made public without the full consent of all the authors. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author.
WITHDRAWN: A Meta-Heuristic Based Approach for Optimal Fake News Detection Using Supervised Learning
Authors: Jaiswal Arunima , Verma Himika , Sachdeva Nitin , Wary Alongbar , Indra Gaurav , Brahma Daniel Kr.
Published: October 2024

The full text of this preprint has been withdrawn by the authors while they make corrections to the work. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author.
Spatial scale dependence of fault physical parameters and its implications for the analysis of earthquake dynamics from the lab to fault systems
Authors: Zaccagnino Davide , Bruno Oscar , Doglioni Carlo
Published: October 2024

An accurate assessment of seismic hazards requires a combination of earthquake physics and statistical analysis. Because of the limits in the investigation of the seismogenic source and of the short temporal intervals covered by earthquake catalogs, laboratory experiments have been playing a crucial role in improving our understanding of earthquake phenomena. However, differences are observed between acoustic emissions in the lab, events in small, regulated systems (e.g., mines) and natural seismicity. One of the most pressing issues concerns the role of mechanical parameters and how they affect seismic activity depending on boundary conditions and on the spatio-temporal scales. Here, we focus on fault friction. There is evidence inferred from geodesy that most large faults are weak and featured by very low static friction coefficients not compatible with those of smaller faults and laboratory experiments. We propose a possible explanation: static friction decreases with fault size also depending on a few physical properties (e.g., faulting fractal dimension), while dynamic coefficients are not affected by the spatial scale. Mathematical derivations are grounded on hypotheses validated using a simple model for earthquake occurrence based on fracture mechanics and able to reproduce the fundamental statistical properties of seismicity.