bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the Variation Law of C-ring Sealing Performance of the Steam Injection and Soak Period in Heavy Oil Recovery
Authors: Wang Kongyang , Han Yaotu , Zhang Binqi , Zhang Hui , Xu Tao , Xu Gang , Chen Bin , Liu Wei 
Published: November 2024

Abstract
The heavy oil resources in the Bohai Lvda (LD) Oilfield have the characteristics of high viscosity and poor fluidity, therefore, it is necessary to inject steam for efficient development. According to specific regulations, heavy oil thermal recovery wells must be equipped with a high-temperature resistant Surface Controlled Sub-Surface Safety Valve (SCSSV). However, observations in 2022 revealed several instances of hydraulic leakage in these valves, primarily due to severe deformation of the internal C-rings. To investigate this issue, this study employed the Abaqus software to simulate the stress state of C-rings within SCSSV throughout the entire steam injection and soak period, with a special focus on the sealing performance variation of metal C-rings at various contact interfaces. The findings highlight that the primary causes of diminished sealing performance are localized plastic deformation of the metal C-rings induced by heating and subsequent shrinkage upon cooling. Furthermore, the movement of the piston within the safety valve significantly impacts the stress magnitude at some C-ring part sealing performance. Additional investigations reveal that different installation methods of C-rings lead to varying patterns in sealing performance. Notably, excessive interference between the C-ring and piston should be avoided, as it results in more severe plastic deformation upon cooling, further diminishing the sealing performance of the C-rings post-cooling. The insights gained from this study are of paramount importance for the improvement and design optimization of C-rings in SCSSV used in thermal recovery wells of heavy oil. Offering significant value in enhancing the safety and efficiency of offshore heavy oil Recovery. Moreover, this research provides new theoretical support and practical guidance for related engineering practices and academic inquiries.
Study on Agglomeration and Plugging Behavior of Fine Particles in Reservoir Based on DEM-CFD Coupling
Authors: Chen Yong , Yan Chuanliang , Cheng Yuanfang , Han Zhongying , Li Yang 
Published: November 2024

Abstract
Given the particularity, significance, and complexity of particle migration behavior in fine silt sand hydrate reservoirs, the agglomeration and plugging behavior of free fine particles are mainly studied. Based on the discrete element method (DEM) and computational fluid dynamics (CFD), the DEM-CFD coupled 3D wellbore sand production numerical model is established and verified. The DEM module divides the reservoir particles into coarse and fine components according to the actual particle size distribution, and assigns adhesive and non-adhesive rolling resistance linear models, respectively. The CFD module uses the finite volume method to solve the incompressible Darcy flow in coarse grids. The results show that the DEM-CFD coupled numerical model established can effectively simulate the phenomenon of fine particle agglomeration during particle migration; Compared with the condition without particle agglomeration, fine particle agglomeration can lead to lower wellbore sand production and more severe pore blockage and permeability loss in the surrounding reservoir; The influences of different production and reservoir parameters such as flow rate, porosity and mud content on the variation of wellbore sand production and reservoir permeability under the condition of fine particle agglomeration is further determined, and relevant production measures and suggestions are put forward. The research results help to clarify the sand production mechanism and characteristics of fine silt sand reservoirs and are expected to provide theoretical and technical support for the efficient and safe development of natural gas hydrate resources in fine silt sand reservoirs.
Research on Drillpipe Stick-slip Vibration and Its Suppression Mechanism in Deep Well Drilling
Authors: Zhang Lei , Li Wenlong , Xie Tao , Liu Hailong , Li Wenbo , Liu Xun 
Published: November 2024

Abstract
During drilling deep wells, stick-slip vibration(SSV) is a reciprocating vibration form of drill bit adhesion, sliding, re-adhesion, and re-sliding. If not suppressed, it can cause serious drilling accidents, such as accelerated wear of drilling equipment, which lead to decreased drilling safety, reduced drilling efficiency, and prolonged drilling cycle. This article establishes a SSV model of the drill string system, considering the three degrees of freedom of the rotary table/top drive, hammer, and drill bit, and analyzes the SSV characteristics of the drill bit during deep well drilling. The SSV analysis of the drill string system was carried out for well XX-X-4, and the sensitivity of rotational speed, viscous damping, drilling pressure, drill bit length, and friction torque coefficient was analyzed. The results showed that the friction torque coefficient and rotational speed are the main factors affecting stick reduction efficiency, while the length of the drill collar is a secondary factor. The WOB and viscous damping have the least impact on stick reduction efficiency. The parameters were optimized to reduce SSV as the target. This article has certain guiding significance for deep well drilling operations.
Research on the Application of BIODRILL-S Synthetic Drilling Fluid in Jinzhou 25-1 Block
Authors: Geng Li-jun , Huang Jin-song , Zhu Yu-lei , He Yang , Hu Guo-jin 
Published: November 2024

Abstract
With the gradual deepening of the development of Bohai Oilfield, JZ25-1 Oilfield is facing a series of engineering problems such as poor wellbore cleaning effect and difficulties in speed and efficiency improvement, with the main field of operations being large displacement wells. Based on the current research progress of synthetic drilling fluid and geological analysis of the block, BIODRILL-S system synthetic drilling fluid has been introduced into some of the 12-1/4 “well sections of the Dongying Formation. In terms of drilling fluid performance, it has good stability, lubricity, and inhibition; In terms of speed increase effect, it has significantly improved the failure of drilling, tripping, and casing operations, demonstrating good applicability; There is room for optimization in the collapse mechanism and compatibility direction with the mudstone in the lower section of East 2, and further strengthening of sealing performance is needed. The application of BIODRILL-S system synthetic drilling fluid in JZ25-1 oilfield has further improved the technical system of extended reach wells, providing extensive reference significance for future speed increase and horizontal displacement extension of extended reach wells.
Optimization of time, effort, and costs for well planning using standardization and automation of the well design process on a cloud-based solution
Authors: Srivastava Aman , Raizada Nishant 
Published: November 2024

Abstract
The current well planning process for operators is capital-intensive that takes time and has a lot of discrete, disconnected steps. Well planners and engineers dedicate a significant amount of time and effort to analyze sub-surface and offset well data for trajectory planning, casing policy selection, casing design, torque & drag, hydraulics, time & cost analysis etc. For development wells and unconventional wells, it is a common scenario for drilling engineers to have a very clear understanding of how the well design shall look like as the oil & gas field is extremely well familiar. As an initial step towards standardization, a review and study of several well design processes were performed by interviewing several engineers, all around the globe. The study revealed that even though every engineer had their own way of working, there was an inherent workflow that could be standardized. This standardized workflow was then outlined with user experience development techniques to cater to the generic steps that well planners, engineers and managers had described. With implementation of this standardized workflow and UI/UX supported process, the next step was to build a cloud native solution which supports micro-services-based engineering calculations in the backend. This allowed to implement speed and scalability in the solution which can cater to various personas in a team.
The next step was to automate the process for a development field. This was achieved by applying checkpoints in the workflow to identify an exploratory well vs. a development well, before calling a microservice. For a development field, the microservice architecture identifies the design aspects of an existing well and incorporates similar well trajectory turn points, casing policy, casing design, BHA, fluids, operational parameters etc. while honoring the surface hole location, targets, and datum reference of the new wells to be planned. This technique helped to not only automate the engineering calculations but also speed up the entire process of designing each well in under a minute.
Apart from engineering calculations, a planning workflow is never complete without team governance, approvals from peers and supervisors, testing various scenarios and creating reports. As these tasks are an inherent part of the planning cycle, they were also incorporated in the workflow. The UX design process techniques ensured that these supplementary tasks were a part of the main workflow and did not interfere with the calculations.
The solution has shown a tremendous increase in the work efficiency of user by reducing the planning efforts from days to minutes. The users can now focus on wells using management by exception as the entire design process can be automated. This also eliminates any unnecessary data entry and avoids errors.
Research and Application of Chemical Water Plugging Technology with High Salt Resistant Gel and Immobile String
Authors: Jia Zhiwei , Xue Xiaoning , Cheng Changkun , Li Fan , Song Rulin , Pu Shijie 
Published: November 2024

Abstract
The salinity of formation water in Gasi N1-N2 reservoir is 18 × 104 mg/L, in which calcium and magnesium ions are 6300 mg/L. The conventional gel used for profile control and water plugging has poor salt resistance and is easy to dehydrate under the erosion of formation water; At the same time, the chemical water plugging of oil wells in the past needs to trip down the downhole string for many times, and the construction period is long. In order to solve the former problem, an anti-high salt organic gel suitable for Gasi N1-N21 reservoir is synthesized. The formula is 0.4 wt% SD-3000 + 0.1-0.2 wt% urotropine + 0.05 wt% resorcinol + 0.4 wt% additive. The viscosity of the gel is more than 6000 mPa.s after gelation, and no obvious dehydration phenomenon is found after aging for five months in the formation water environment of Gasi N1-N21 reservoir at 65 °C. The technology of chemical water plugging without moving the string has been innovatively developed, which does not require the operation of tubing and pump during construction. In Gasi N1-N21 reservoir, anti-high salt gel was used to carry out three well-times of chemical water plugging tests without pulling the string, which were all successful, saving 44% of the cost of measures and shortening 78% of the construction period. After water plugging, water production was obviously inhibited, and the average moisture content was reduced from 95% to 45%. The average daily oil increment of a single well was 1.8 tons, and the cumulative oil increment was 1700 tons. The results show that the chemical water plugging technology without pulling string has broad application prospects in Gasi N1-N21 reservoir in Qinghai Oilfield and similar reservoirs in China.
Émilie Du Châtelet’s Newton
Authors: Hutton Sarah 
Published: November 2024

Abstract
This paper discusses the first French translator of Isaac Newton’s Principia Mathematica, Émilie Du Châtelet (1706-1749). It shows how her reputation suffered because as a woman her intellectual capabilities and her attainment in mathematics were not taken seriously and she was overshadowed by Voltaire, although he was no match for her expertise in mathematics. However, her extensive correspondence shows that in her lifetime she had an active intellectual life and was well-connected with the leading savants of her day. The letters shed light on the development of her interest in Newton – and indeed on the reception of Newton in eighteenth-century France. The paper concludes with an account of her Newton translation and the circumstances of its posthumous publication in 1759.
Thomas Young: The last man who knew everything?
Authors: Robinson Andrew 
Published: November 2024

Abstract
The polymath Thomas Young is best known as a physicist for his double-slit experiment showing the interference of light and hence its wave nature, published in 1807. However, Young had no formal training in physics and was instead a qualified physician. His first scientific research in the 1790s was on the human eye, which led him to his three-colour theory of how the retina responds to light, published in 1802 and finally confirmed experimentally in 1959. In other words, Young’s passion to understand the physiology of vision led to his subsequent fascination with the physics of light—an important example of the value of polymathy. Later his passion for ancient and modern languages—he coined the term ‘Indo-European’ in 1813—led to his fascination with the Egyptian hieroglyphs and his pioneering decipherment of the Rosetta Stone in 1815-1819. This paper samples Young’s amazing range and also considers polymathy’s advantages and disadvantages, then and now.
The British sciences and the Great War: myths and histories
Authors: Edgerton David 
Published: November 2024

Abstract
The history of the relations of science and war in the United Kingdom during the Great War has been the subject of much mythologising by scientists and by historians. Those myths need to be understood, not ignored. Contrary to those myths the UK had a powerful military-scientific complex prior to the Great War, which was greatly expanded during it, not least by the recruitment of physicists to it.
From ancient to modern: Astronomy in medieval Islam
Authors: Casulleras Josep 
Published: November 2024

Abstract
This paper firstly summarises the main reasons for the huge development of astronomy in the medieval Islamic world. Then it explores the intrinsic connections of the discipline with the society of the time through some of its main practical applications which proved useful for both civil and religious needs. Finally, it examines the influence and the main consequences of this scientific development, recalling a common traditional debate on the role of medieval Arabic astronomy in the European Renaissance.
The Sun from Copernicus to Newton: from Heliocentrism to the Solar System
Authors: Wootton David 
Published: November 2024

Abstract
This paper gives a brief account of changing conceptions of the Sun from 1542 (Nicolaus Copernicus) to 1705 (Halley’s Comet). It explores the obstacles to the acceptance of Copernican heliocentrism and the emergence of the novel claims that the Sun is a star and that the Earth is a planet within what was now called the “Solar System”.
A Universe dominated by dark energy?
Authors: Sumner Timothy J. 
Published: November 2024

Abstract
Observations of our Universe have led to a current consensus model which has a number of unexpected and, some would say bizarre characteristics. These include two epochs in time when it exhibits a ‘strange’ behaviour, namely the Big Bang moment of creation itself and the subsequent period of initial inflation. In addition the models now require two unseen and dominant constituents of the Universe to explain its dynamics, which are known as ‘dark matter’ and ‘dark energy’. Having said that, once these four features are included the model is very successful in explaining a vast range of astronomical observations, spanning virtually the whole lifetime of the Universe. This paper focusses on dark energy, starting from an historically much simpler model and then building up to the present day understanding with reference to the key observations which have driven changes in paradigm. Possible suggestions as to the nature of dark energy are considered and finally a section is included concerning how future observations may lead to a better understanding.
Who am I in the Multiverse? Everettian quantum mechanics and the mental
Authors: Dawid Richard 
Published: November 2024

Abstract
Physics and mentality are most often understood to be paradigmatically separate fields of inquiry. The foundational debate has a long history of attempts, however, to introduce aspects of mentality into physical analysis. In the context of Everettian quantum mechanics considerations of this kind play out in a different way than in collapse theories. This paper reviews some of those thoughts.
A journey through quantum technology
Authors: Pasquazi Alessia 
Published: November 2024

Abstract
Technology aims to utilise physics to invent things that improve our lives. Our current information technology era is the result of quantum mechanics and the concept of wave-particle duality. Many revolutionary technologies, such as the laser, MRI and integrated circuits were developed from this first quantum revolution. This paper provides a brief summary of these key quantum technologies and investigates some of the ongoing research that may spark a second quantum revolution.
Boltzmann, Mach and Wittgenstein’s Vienna
Authors: Staley Richard 
Published: November 2024

Abstract
Focusing particularly on the work of Ernst Mach, this paper explores some of the epistemological ground shared between Ludwig Boltzmann and Mach, and offers an account of links between Mach’s published work in psychophysical investigations of the relations between physical and physiological phenomena and his unpublished lectures in physics, to indicate that Mach’s understanding of the scope of the sciences and philosophy – and his intent to move between inner and outer – was as expansive as Wittgenstein’s, and that both aimed to develop a thoroughly consistent approach.
Scientific thinking across the centuries and the foundations of physics
Authors: Rovelli Carlo 
Published: November 2024

Abstract
This paper discusses the sense in which physics can be seen, contrary to what is often stated, as a cumulative body of knowledge on Nature. Science, from this perspective, is the search for increasingly effective ways of organizing our experience, hence giving us the best available grasp on reality. The paper illustrates the continuity of science across the centuries by comparing the physics of motion of Aristotle and Newton.
Chaos: From celestial mechanics to climate
Authors: Budd Chris 
Published: November 2024

Abstract
Chaos is unpredictable behaviour arising in systems governed by deterministic laws. Since its ‘discovery’ in the 1960s by Edward Lorenz in his studies of meteorological systems, chaos has become an important way of understanding seemingly random behaviour in many other areas. These include the double pendulum, the climate, El Niño and electrical oscillators. Understanding chaos allows the limits of the predictability of a system to be determined. However, despite this recent activity this paper will show that the theory of chaos has a rich history and chaotic behaviour was originally identified in the 1890s by Henri Poincaré in his investigations of the three-body problem in celestial mechanics. But remarkably this paper will also show that chaotic behaviour can be found in such a simple problem as multiplication by 10 and it is closely linked to the question (studied by the ancient Greeks) of whether a number is rational or irrational.
The role of unpredictability in the formation and maintenance of complex systems
Authors: Wiesner Karoline 
Published: November 2024

Abstract
The terms ‘complexity’ and ‘chaos’ are often discussed in the literature as two phenomena that are either two sides of the same coin or that cause each other. However, they are quite distinct in a fundamental way. This paper explains why chaos and complexity should not be conflated and discusses the origin of this common misunderstanding.
Brief summaries on symmetries in the history of physics–mathematics: James Clerk Maxwell (1865–1873), Emmy Noether (1915–1918) and Albert Einstein (1905–1926)
Authors: Pisano Raffaele 
Published: November 2024

Abstract
The physical phenomenon of symmetries and their physical–mathematical conceptualisation traverse the history of science, particularly in geometry, physics and mathematics. In order to understand and describe the laws of nature (in certain situations, e.g. status, relationships, applicability, fields etc.), scientists, historians and philosophers persistently worked on these subjects, particularly on the significance of gauge symmetry and its correlated mathematical operations (theorems, transformations, conserved quantities, violation, breaking, etc.). One of the main purposes is to understand when and how a violation - a breaking of symmetry - is performed. For the sake of brevity and taking into account the physics–mathematics relationship between Physics and Mathematics in the history of physics/mathematics, this paper concisely discusses the intellectual role played by the Physics and Mathematics relationships in the work by James Clerk Maxwell, Emmy Noether and Albert Einstein.
The greatest physics discovery of the 20th century: How did the expanding Universe make us?
Authors: Mather John C. 
Published: November 2024

Abstract
The expanding Universe is unstable, owing to the energy released in gravitational interactions, leading to the complexity we now observe, from astrophysics to biology and psychology and combat. In just the last century, we discovered relativity, quantum mechanics, the fundamental particles (quarks, leptons and force carriers), the expanding Universe and the density fluctuations in the primordial material, and the astounding complexity of self-organised chaos feeding from energy flows. While we have not detected signs of life elsewhere, we know that about 20% of stars have planets with the right temperature and size to be like Earth. If life is not a miracle but a thermodynamic imperative, then it could be detectable through measurements of exoplanet atmospheres containing oxygen.
Achieve the optimal capacities of renewable energy generating and storage equipment by loading factor indexes of commercial key-customers
Authors: Tseng Y M , Mao Z J , Huang H S , Li G L , Zheng J L 
Published: November 2024

Abstract
According to the typical load characteristics of commercial key-customer, the loading factor index (LFindex) for 24 hours of the day in working day can be obtained. The solar power generation and the commercial key-customer load are estimated on the basis of the local sunshine which the optimal capacity of solar energy and power storage equipment is deduced under various load indicators in accordance with the supply-demand theory. The loading factor index is based on the average load to get the different loading factor indexes under different loads per hour. If the load index is greater than 1 that apply the distributed power generation is more applicable for solar power generation of renewable energy which can restrain the peak power consumption of commercial key-customers. Based on the selected key-customer when the loading factor index is equal to 1, the optimal solar energy setting capacity is 1.0268 PU, the optimal power storage device capacity is 0.3447 PU; the loading factor index is equal to 1.2 which get the optimal solar setting capacity is 0.618 PU and the optimal storage device capacity is 0.0261 PU; the loading factor index is equal to 1.5, both the optimal solar setting capacity is 0.0243 PU and storage device capacity is 0.0005 PU. The conclusion is that the loading factor index increases uniformly which the optimal solar installation capacity also decreases smoothly and the optimal energy storage equipment capacity decreases sharply.