Oil - Science topic

S32001 (EN 1.4482) is a newly developed duplex high-strength stainless steel known for its enhanced yield strength and cost efficiency. This material is often used in plate girders with web openings employed in offshore platforms for oil exploration, which are susceptible to patch loading. However, the structural performance of S32001 high-strength...

Maintenance along with its technical and management activities during repair periods has impact on a product or an asset's economic factors. Maintenance plans have been divided into several categories, including condition based maintenance-CBM, preventative maintenance, and breakdown maintenance. While preventative maintenance frequently inspects a...

This study employs the recently proposed bootstrap autoregressive distributed lag (ARDL) model augmented with a Fourier function and the dynamic ARDL simulation procedures to examine whether the oil price-economic growth relationship is dependent on the level of corruption in an oil-dependent economy. Using Nigerian quarterly data during the 1996Q1...

The chain‐walking mechanism, coupled with β‐elimination reactions, establishes nickel complexes as a unique class of catalysts in olefin polymerization, giving access to a variety of polyethylene products from only ethylene monomer. In this study, a set of 8‐(2,6‐bis(aryl)‐3,4,5‐trifluorophenyl)imino‐5,6,7‐trihydroquinoline‐nickel bromide complexes...

In popular Baba-Engle-Kraft-Kroner (BEKK) and dynamic conditional correlation (DCC) multivariate generalized autoregressive conditional heteroskedasticity models, the large number of parameters and the requirement of positive definiteness of the covariance and correlation matrices pose some difficulties during the estimation process. To avoid these...

1. INTRODUCCIÓN Tomando en consideración que el Estado de Tabasco en México, es uno de los Estados donde el sector petrolero tiene más de 60 años, las actividades de explotación y explotación del recurso petrolero es algo cotidiano. Las empresas que dan servicio de remediación de suelos a la paraestatal petrolera, son muy diversas; así como las téc...

China's rapid industrialization and urban growth have driven its electricity consumption to unprecedented levels, with projections indicating an annual demand of approximately 10,000 terawatt-hours (TWh) or 10 petawatt-hours (PWh). This paper presents a comprehensive numerical analysis of China's energy consumption by quantifying the equivalent ene...

The exploitation of Block L within the Tarim Basin oilfield commenced in 1989 and it has transitioned from the natural energy development stage to the current water injection development stage. Despite this, the efficacy of water flooding remains suboptimal, with the low degree of control, uneven utilization of reserves, and subpar mining outcomes....

Laser micro-texture preparation technology significantly excels in micro-texture processing, yet there has been scant reported research on utilizing this technology for micro-texture processing and texture morphology control on the surface of wheat mill rolls. The aim was to ascertain the ideal laser preparation process parameters for the creation...

Nations endowed with rich natural resources have experienced substantial hindrances to their economic development due to political instability. Given that the Organization of the Petroleum Exporting Countries (OPEC) is a major oil producer, its economic well being is closely linked to oil prices and political stability. This study aims to analyze t...

The oil and gas industry faces growing challenges in ensuring safe and environmentally responsible drilling practices. Real-time fluid tracking, combined with advanced artificial intelligence (AI) analytics, offers a promising solution to enhance safety, efficiency, and sustainability in drilling operations. This paper explores how real-time fluid...

This study evaluates the performance of continuous flow and drop-based microfluidic devices for the synthesis of silver nanoparticles (AgNPs) under identical hydrodynamic and chemical conditions. Flows at low values of Dean number (De < 1) were investigated, where the contribution of the vortices forming inside the drop to the additional mixing ins...

In this study, a controller design based on numerical control methods was implemented for liquid level control in oil tanks. The dynamic behavior of the tank's liquid level was analyzed using mathematical modeling and electrical analogies, and the system dynamics were examined in detail. After deriving the transfer function, the controller design...

Being a Paper Presented at a 5-Day Capacity Building on Global Oil and Gas Markets Dynamics –Trading and Financing held from 2nd to 6th August, 2021 at Abuja, Nigeria

In the process of oil–gas micro-lubrication, the lubricant oil liquids are disturbed by high-speed airflow and are prone to forming oil droplets containing micro-bubbles. Micro-bubbles have a significant influence on the kinetic characteristics of successive/synchronous oil droplet impingement on an oil film and its oil film formation mechanism. Nu...

The economic growth performance in Algeria depends on imported capital goods as well as oil export revenues. A decrease in oil prices may represent a heavy burden on the Algerian economy. This study contributes by exploring the asymmetric effects of oil price shocks on the trade balance in the Algerian economy from 1970Q1 to 2022Q4. To address this...

The impact of a droplet onto another liquid is already a complex problem in which many forces are involved, but the problem becomes even more complex when an additional liquid layer is introduced. In this study, we report our investigation of the impact of water droplet on a thin oil layer ( ∼1 mm) atop water pool. As expected, the oil layer acts a...

Bridge plugging of solid particles is a common phenomenon in the field of oil and gas engineering, and it mostly occurs in liquid-solid. However, as a basic problem involving many fields, the current research focuses on the funnel flow system driven by gravity, and the exploration of liquid phase driving system is relatively few. In this paper, a v...

In this paper, we analyze the serious environmental accident caused by a massive oil spill on 7 February 2024, off the island of Tobago, using two separate algorithms, namely, the established visible near-red index (VNRI) algorithm and the novel IVI visible reflectance ratio index (IVI), both applied to Sentinel-2 satellite images. These algorithms...

Offshore low-permeability thin interbedded reservoirs contain significant oil reserves and are crucial for future development. However, due to the high cost and operational challenges associated with offshore fracturing, large-scale fracturing common in onshore fields is uneconomical. Furthermore, offshore low-permeability reservoirs often have spa...

The article considers the issue of managerial decision-making in an oil and gas company, which is related to the class of multi-criteria choice problems. To improve the validity of decisions in the context of companies’ sustainable development it is proposed to implement a Decision Support System (DSS). A brief review of the existing methods of ass...

Used cooking oil is a liquid material produced from the use of oil for frying. This oil is often not reused and is simply thrown into the environment. If you throw it in the sink it will cause a blockage. Throwing it out in the open causes pollution. The dedication aims to train junior high school teachers in managing used cooking oil into aromathe...

This study examines the effects of artificial intelligence on oil shocks (supply, demand, and risk shocks) across different time scales and market conditions, using the wavelet-based quantile-on-quantile approach. The empirical results have discovered that in the short term, artificial intelligence exerts significant negative impacts on supply and...

Two engine oil additives with graphene were tested in diesel engines. The first was a graphene oxide (GO)-based, commercially available additive that the supplier recommends using at a 3% v/v concentration in engine oil. The second was a graphene nanoplatelet (GNP)-based additive that is under development, which is more concentrated and allows for...

A major global concern is climate change and its effects on the environment. The combustion of mineral diesel plays a major role in creating pollution. This creates an interest for the researchers to identify an alternate source for the same. In this work, the biodiesel obtained from silkworm oil is blended with 70%. The biodiesel obtained from sil...

Using a structural VAR model, this paper investigates how oil price shocks and US uncertainty affect emerging market corporate bond returns. The key finding is that the response of emerging market corporate bond returns varies significantly depending on the underlying sources of oil price changes. Oil supply shocks generally have a negative impact...

In the present study, a total of four direct and diverse experimental crosses and their F2 were assessed according to the Compact Family Block Design during kharif 2022-23 at the Main Cotton Research Station, NAU, Navsari to estimate the heterosis, heterobeltiosis and inbreeding depression for fibre quality parameters and oil content in tetraploid...

In geological exploration, identifying fluids is essential for assessing the potential of oil and gas reservoirs. This research presents a refined method for fluid detection using log data by integrating advanced transformer models with deep reinforcement learning, aiming to enhance the precision and efficiency of fluid identification. We use tradi...

In the present study, a simplified and useful design formula is proposed to predict the ultimate strength of a plate under longitudinal compression. The shape of the elastic buckling strength (σxE) equation is utilised and adjusted to predict the ultimate compressive strength of the plate. In total, 600 cases of reasonable plate scenarios are selec...

A novel vibratory thru-feed rolling process for involute splined shaft was proposed and validated on a prototype equipped with a resonant module. The effects of lubricating medium, vibration frequency, and vibration amplitude on axial load were investigated. Through experimental analysis with the nonlinear surface fitting method, the optimum proces...

This paper sought to estimate The study mainly aimed to analyze the role of economic policies implemented by Libya, and to measure the effectiveness of these economic policies in achieving economic diversification in Libya during the period (1990-2023). To test the effectiveness of economic policies in Libya, the study relied on the inductive appro...

The heterogeneity and complexity of low-permeability oil and gas reservoirs pose significant technical challenges for their efficient development, including reservoir plugging, high flow resistance, and optimal well type design issues. These challenges result in high development costs and extended production cycles due to insufficient productivity...

Honey and Palm kernel oil exhibit antibacterial activities against a wide range of bacteria in different milieu. This study aims to compare the antibacterial activity of Honey, Palm kernel oil, and the synergistic effect of both honey and palm kernel oil against Staphylococcus aureus. The inhibitory effect of both honey and palm kernel on bacterial...

In the geoscience domain, mainly within the oil and gas industry, getting the correct category of rock samples is crucial. Machine learning models deployed for rock classification often use the categorical cross-entropy loss function. This loss function may struggle when the rocks are either very similar or have too much intraclass variability. Fur...

Being a Paper Presented at a 5-Day Capacity Building Training Workshop on Strategic Acquisition and Management of Specialized Assets in the Upstream Oil and Gas Sector held from 8th to 12th May, 2023 at Digital Bridge Institute, Abuja, Nigeria

During the shutdown of buried pipelines carrying hot waxy-rich crude oil, the temperature is likely to drop below the pour point due to heat loss to the surrounding soil environment. This drop can lead to gelation incidents, resulting in significant economic losses. Therefore, in this study, fast prediction models for coupled oil and environment te...

Despite Africa's huge agricultural potential and natural resource abundance, the continent is paradoxically the most food import dependent and food unsecured in the world. Based on this paradoxical observation, this study seeks to analyze the effect of natural resources on food import dependence in a panel of 38 sub-Saharan African countries over t...

Being a Paper Presented at a 5-Day Capacity Building Training Workshop on Strategic Acquisition and Management of Specialized Assets in the Upstream Oil and Gas Sector held from 8th to 12th May, 2023 at Digital Bridge Institute, Abuja, Nigeria

This article examines the impact of WTI crude oil prices on nine city indices traded on the BIST, using daily data from 2014 to 2024. The study employs unit root tests, cointegration analysis, and FMOLS estimation to investigate the long-term relationship between oil prices and city indices. The results indicate that oil prices and city indices exh...

The aerodynamic characteristics and surface flow topology of tapered swept-back National Advisory Committee for Aeronautics 0020 airfoil equipped with Clark-Y shaped vortex generators (CsVGs) are researched. The force and surface oil flow visualization for the tapered swept-back wing having a swept angle of 25° and a taper ratio of 0.4 is performed...

PT. Pertamina (Persero) is again managing the Sanga-Sanga Block from Virginia Indonesia (VICO), a United States oil company. The management of the Sanga Sanga Block in East Kalimantan was handed over by SKK Migas from Virginia Indonesia (VICO) to a subsidiary of Pertamina (Persero), namely Pertamina Hulu Sanga Sanga (PHSS) starting August 7, 2017....

Being a Paper Presented at a 5-Day Capacity Building on Global Oil and Gas Markets Dynamics –Trading and Financing held from 2nd to 6th August, 2021 at Abuja, Nigeria

Polyhydroxyalkanoates (PHAs) have attracted broad interest as promising sustainable materials to address plastic pollution and resource scarcity. However, the chemical synthesis of stereoregular PHAs via ring‐opening polymerization (ROP) has long been an elusive endeavor. In this contribution, we exploited a robust spiro‐salen yttrium complex (Y3)...

For thousands of years, bread has been a basic food, and its quality and variety have changed with time. This essay examines the impact on bread quality, the advancements in bread production, and the introduction of new bread varieties. We can learn more about how bread is changing to meet the dietary requirements and tastes of the modern world by...

A Paper Presented at a 5-Day Capacity Building Training Workshop on Strategic Acquisition and Management of Specialized Assets in the Upstream Oil and Gas Sector held from 8th to 12th May, 2023 at Digital Bridge Institute, Abuja, Nigeria

Being a Paper Presented at a 5-Day Capacity Building Training Workshop on Strategic Acquisition and Management of Specialized Assets in the Upstream Oil and Gas Sector held from 8th to 12th May, 2023 at Digital Bridge Institute, Abuja, Nigeria

Being a Paper Presented at a 5-Day Capacity Building Training Workshop on Strategic Acquisition and Management of Specialized Assets in the Upstream Oil and Gas Sector held from 8th to 12th May, 2023 at Digital Bridge Institute, Abuja, Nigeria

In the interconnected world, collaboration is the game changer. Agencies and firms, citizens and groups who can collaborate, will thrive in the networked world; those who cannot are doomed to perish. There is considerable evidence to suggest that collaboration is a necessary condition to drive innovation, particularly transformational innovation. T...

The energy transition demands innovative solutions for efficient and sustainable oil and gas production, particularly for heavy and extra-heavy crude. A significant challenge in these operations is the excessive production of water, which increases operational costs and environmental impact. This paper reviews the application of mechanical water co...

To mitigate the effects of climate change, novel carbon capture technologies need to be developed. Since 2020, a new solution has been to adopt an energy-efficient combination of “amine blend + heterogeneous catalysts” in large CCUS demonstration plants. This study adopted the specific tri-solvent MEA-EAE-AMP and solid catalysts CaSO4, HND-580, and...

This article presents a methodological argument for examining the affective dimensions of political identity formation, with a pivotal focus on the role of practice. Grounded in a psychoanalytically inspired discourse theory framework, it advocates for expanding research beyond textual sources to investigate the affective investment inherent in pol...

Objective: In the present research, we have developed a human resource valuation model and its reporting at Iran National Iranian Oil Company (NIOC) and its subsidiary companies. Methods: Various models in the field of human resources valuation have been considered and finally, regarding the advantages and limitations of each model, a combination o...

A prominent feature of the Brazilian Oil Lease auctions is the "money on the table" left by Petrobras, the state controlled company that for decades held the monopoly of exploiting petroleum in Brazil's territory; the expression refers to the fact that Petrobras' bids are substantially higher than the bids of its competitors. Brasil and Postali (20...

Production management serves as a pivotal component in the operational activities of oilfield sites, with the effectiveness of management practices directly influencing the success of developmental outcomes. To enhance the maintenance-free operational period of oil production systems, elevate management standards, and reduce overall operational cos...

This paper investigates the role of Net Present Value (NPV) sensitivity analysis in assessing investment risks. The primary objective is to explore how sensitivity analysis can enhance decision-making by accounting for uncertainties in key variables such as cash flows, discount rates, and project duration. Various methods of sensitivity analysis, i...

Oil and gas resources serve as the driving force for economic and social development. This rapid development of science and technology has accelerated the exploration, development, and utilization of oil and gas resources, and thus led to spurts in related research. However, the research trends in global oil and gas exploration vary with the progre...

سپکتروفوتومتری عبارت از تخنیکی است که برای شناسایی و اندازه‌گیری مقدار نور که توسط مواد منحله یک محلول که از آن عبور می‌نماید، اطلاق می‌گردد. معمولاً بین طیف نوری 400-700 نانومتر، جذب نوری انجام می‌شود. آزمایش سپکتروفوتومتری در ساحات مختلف کاربرد وسیع دارد، که یکی آن جهت دریافت تقلب در روغن‌های خوراکی است. تقلب در بسیاری از مواد غذایی از جمله روغن‌...

Safflower, renowned for its versatility in applications such as edible oil production, industrial uses, and potential health benefits, holds significance in global agriculture owing to its temperature tolerance and utility in crop rotation. This study aimed to investigate the impact of different winter season sowing times on diverse growth paramete...

Resource related business drivers for oil and gas companies include aspects of growth (total reserves and annual production) and aspects of business sustainability (reserves replacement ratios and reserves over production ratios). It is, therefore, of strategic importance to be able to proactively select projects to execute that will secure future...

Factor analysis models are widely utilized in social and behavioral sciences, such as psychology, education, and marketing, to measure unobservable latent traits. In this article, we introduce a nonlinear structured latent factor analysis model which is more flexible to characterize the relationship between manifest variables and latent factors. Th...

Oil production forecasting is crucial in reservoir engineering for decision support and strategy optimization. Traditional methods struggle with capturing complex temporal dependencies and nonlinear relationships in production data, especially when other influencing factors are incomplete, missing, or contain unreliable outliers. Even after data pr...

As green and low-carbon materials, coir geotextiles have a broad application prospect in soil strengthening. In order to clarify the interface characteristics of coir geotextiles, the pullout test is performed on coir geotextiles by using transparent soil technology. The transparent soil is prepared by using fused quartz as the skeleton particle an...

This study employs the recently proposed bootstrap autoregressive distributed lag (ARDL) model augmented with a Fourier function and the dynamic ARDL simulation procedures to examine whether the oil price-economic growth relationship is dependent on the level of corruption in an oil-dependent economy. Using Nigerian quarterly data during the 1996Q1...

Introduction Machine learning-based power transformer fault diagnosis methods often grapple with the challenge of imbalanced fault case distributions across different categories, potentially degrading diagnostic accuracy. To address this issue and enhance the accuracy and operational efficiency of power transformer fault diagnosis models, this pape...

This study aimed to evaluate the effects of using annatto oil extract in the diet of red Betta splendens females subjected to temperature stress. A total of 150 juveniles (initial weight 0.997 ± 0.038 g and 3.909 ± 0.268 cm) were used, randomly distributed in 15 aquariums (20 L). The fish were fed for 28 days with diets containing increasing levels...

This article presents a digital twin of hot pumping waxy oil through a main pipeline. Digital copies of the original object data were identified through sensor measurements from SCADA and ECMAS, forming the basis of the SmartTranPro 1.7.1 Software. The mathematical model of the software describes the process of hot pumping waxy oil regarding heat e...

The collection of the State Historical Museum contains a significant collection of ceramic oil lamps from the Northern Black Sea region and the Mediterranean region of the 6th century BC – 5th century AD. An important part of these lamps comes from sites of the Asian Bosporos. It should be noted that the studied objects were found not only in settl...

Transformer oil will inevitably be contaminated by impurity particles in the actual operation process; Carbon particles are the most abundant conductive particles in transformer oil. The adhesion behavior on the internal insulating surface will cause electric field distortion, which will pose a serious threat to the safe and stable operation of oil...