bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exploring the aromatic typicity of blended red wines from geographically close sub-regions in AOC Corbières: a sensory and chemical approach
Authors: Argentero Alice , Caillé Soline , Nolleau Valérie , Godet Teddy , Mouls Laetitia , Rigou Peggy 
Published: February 2024

Several studies have reported a terroir effect on monovarietal wines originating from geographically close areas, using both aromatic and sensory analyses. However, few studies have evaluated this effect on blended wines, a widespread practice that is recognised as adding great complexity to wines. This study aimed to discriminate blended wines produced in five sub-regions of the Corbières AOC according to their aromatic and sensory profiles and across two vintages: 2018 and 2019. The wines’ aromatic profiles were semi-quantified using HS-SPME-GC-MS, and the sensory descriptors enabling the differentiation of the wines were identified by QDA analysis.
Although blending is a frequently used process adapted for the production of homogeneous wines within an appellation, the sensory and chemical profiles enabled us to differentiate wines of the Lagrasse and Lézignan sub-regions from those of the Maritime and Durban sub-regions. The variation in intensity of red fruit jam notes may be linked to terroir factors relating to the micro-climatic conditions. Wines from vineyards in coastal regions or at higher elevations were discriminated by lower intensities of this descriptor. However, other discriminating descriptors, such as amyl, earthy or cooked vegetables, could be related to the winemaking process. Correlations were found between the tendencies observed regarding the sensory markers (such as red fruit jam, butter/lactic, amylic, cooked vegetable) and those regarding the chemical families of aroma or specific aroma compounds (such as ethyl esters, higher alcohols and sulphur compounds), whose production is particularly affected by the winemaking processes. Finally, this study shows that it is possible to discriminate blended wines from different geographically close regions, and that the terroir factor with the greatest influence on this discrimination seems to be linked to winemaking processes, including the type of blending carried out.
The Revenue of Local Breed Chicken Traders at Traditional Markets in Ngabang District, Landak Regency, From The Perspective of Maqasid Syariah
Authors: Pamisa Nurul , Iqbal Ichsan , Nurjannah Syamratun 
Published: February 2024

In the running of the lokal breed chicken business, there are other factors that have an impact on traders' The revenue. The Revenue earned by these traders is managed by the traders especially for their household needs. This is what makes traders need to pay more attention to the factors that impact on their Revenueso that the continuity of their business remains stable. The purpose of this study was to determine the impact of capital, working hours and length of business on the Revenueof lokal breed chicken traders in the Traditional Market, Ngabang District, Landak Regency and Analysis of traders' Revenuelokal breed chicken at Traditional Market, Ngabang District, Landak Regency according to Maqasid Syariah. The method used is a descriptive method with a qualitative approach. The results of this study, 1) Capital has an impact on Revenueif the more chicken supplies sent by distributors, the greater the capital issued by traders. length of business makes traders understand consumer tastes and length of time selling has an impact on Revenue2) Based on the perspective of Maqasid Syariah, traders are able to fulfill their dharuriyat (basic) needs which include five things, namely a) Maintenance of Religion (Hifz Ad-Din); b) Self-preservation (Hifz An-Nafs); c) Mind Maintenance (Hifz Al-Aql); d) Maintenance of Offspring (Hifz An-Nasb); e) Property Maintenance (Hifdz Al-Maal).
Selection of Corrosion Resistant Alloys for CCS and CCUS Injection Wells
Authors: Rowe A. C. , Craig B. D. 
Published: February 2024

Abstract
Currently there is little information or test data available for determining the most suitable corrosion resistant alloys (CRAs) for downhole injection equipment in carbon capture and sequestration (CCS) and carbon capture utilization and storage (CCUS) wells. This paper provides a guideline for such selections based on the composition of the CO2 stream, including impurities, and the composition of the saline formation into which the CO2 will be injected.
Fit for Purpose Process Automation Drives Consistent Performance in an Operator's West Texas Drilling Program
Authors: Dunbar D. , Christopher C. , Groh A. 
Published: February 2024

Abstract
This study examines the automation of the traditionally manual slip-to-weight (S2W) and weight-to-slips (W2S) sequences in drilling. Historically, best practices for these sequences were individually maintained. In alignment with a major operator's protocol in the Midland Basin, our approach focuses on mitigating bit damage and standardizing connection methods. A pivotal feature of this automation was its adaptability to different sequences and parameters without altering the software. After comprehensive testing on a drilling simulator, a field trial was initiated in the Midland Basin. Following positive feedback on the system's consistency and reliability, its use was expanded to three more rigs. The results revealed enhanced operator and rig contractor performance, especially in uniform connection performance and improved S2W and W2S durations. A collaborative relationship between product teams, operations, and the operator was essential in maximizing these benefits. Crucially, the collaboration between the operator and rig contractor was key to developing a quickly adopted, value-driven product.
Decentralized Active Control of Distributed Damping Subs for Stick-Slip Reduction in Drilling
Authors: Nüsse P. M. , Ambrus A. , Aamo O. M. 
Published: February 2024

Abstract
Torsional stick-slip vibrations are a significant cause of drill string damage and failure. Using damping subs distributed along the drill string has been demonstrated in both simulations and laboratory experiments as a viable solution to reduce stick-slip in drilling. The effectiveness in mitigating stick-slip can be further improved through active control of the damping strength of one or several subs. This paper evaluates a control scheme, which relies only on local downhole measurements, for various operating conditions simulated with a drill string mechanics model. Damping subs with sleeves supported on bearings and incorporated eddy current brakes are installed along the drill string, adding viscous damping to the system to mitigate torsional vibrations. The damping amount is proportional to the relative rotational speed between the sleeve and the pipe, and therefore maximized when the sleeves are non-rotating. However, if the braking force surpasses the static friction holding the sleeve in place, the sleeve slips and reduces its braking abilities. To counteract this, an On-Off-based control scheme with proportional control (P-Off controller) is implemented at the level of each sub to manipulate the value of its damping coefficient. The Off condition is triggered when local measurements indicate slipping of the sleeve. Simulations of various drilling scenarios conducted with a coupled axial and torsional drill string model show that the P-Off controller can reduce stick-slip in the system in both off-bottom and on-bottom conditions. The results indicate that the average damping coefficient, and implicitly the torque added to the system, can be greatly reduced compared to a passive damping system, consisting of the same number and positioning of subs but with constant damping coefficients. Also, the settling time of the downhole rotational speed is significantly reduced compared to the passive system. The control scheme is decentralized as it relies only on local knowledge, such as pipe rotational speed inferred from an inertial measurement unit, to estimate the top drive revolutions per minute (RPM) setpoint. Therefore, communication with the surface or with neighboring subs is not a requirement for the control implementation. The controller also shows robustness against variations in the top drive RPM and noisy downhole measurements, which is important for a real-world application. The presented approach differs from existing downhole torsional vibration damping solutions, as it does not rely on a single tool placed inside or near the bottom-hole assembly, but on several subs distributed along the drill string, with their damping strength adjusted directly downhole in a decentralized manner.
Energy Storage System Enables Operations with Zero Generators Online
Authors: van Wissenkerke M. Snijder , Harrist J. , Poludasu S. , Lowery J. 
Published: February 2024

Abstract
Battery energy storage systems (ESS) have been proven to significantly reduce emissions and fuel consumption on drilling rigs since the industry's first system was deployed in 2018. These systems leverage their stored energy to reduce the number of generators online and operate the remaining generators at high load where they are most efficient. Control methodology has traditionally required at least one generator to be online to follow the grid formed by the generator(s) and bias the load higher or lower. However, during operations where power demand is lower than the capacity of a single generator, the battery becomes fully charged leaving the system with no mechanism to artificially increase generator load. This results in a single generator running at low load for extended periods of time.
A new automated energy-saving feature, characterized by the absence of ambient noise typically associated with generators, was developed to address this issue and create opportunities for additional fuel and emissions reductions. When the system determines that the operation will not require significant power consumption for an extended period, it will automatically initiate a shutdown of the last online generator and switch to the automated energy-saving mode, using only the batteries to form the electrical grid and supply power to all rig equipment. The rig will continue to operate in this mode until the battery state of charge drops to a certain threshold, at which point it will automatically launch a generator. When the additional generator comes online, it will run at a high load for a brief period to quickly recharge the battery. This accomplishes both goals of reducing generator runtime and increasing average generator load.
A calculated approach was necessary to maximize the time in the energy-saving mode while avoiding any impact to operations. Additionally, the control scheme was designed to minimize the number of generator starts while taking precautions to stay within the discharge limitations of the batteries. This feature was deployed to the fleet of ESS, resulting in additional fuel and emissions savings not possible with the traditional systems. Factors including ambient temperature and the operator-specific drilling program produced a wide range of efficiency improvement across the fleet.
Performance Drilling with Managed Pressure Drilling in the Permian Basin: A Case Study in the Wolfcamp Formation
Authors: Cody Shawn , Sadat Ali Yousefi , Gill Karnvir , Bowman Foster , Balderston Matt 
Published: February 2024

Abstract
The use of Managed Pressure Drilling has widespread applications in the Permian Basin. In this basin, typically MPD is used in a more traditional and somewhat limited fashion. However, using MPD as a performance drilling technique is a relatively unexplored application and early results have yielded significant rate of penetration (ROP) increases and days shaved off wells.
While MPD has been used in this area for more traditional methods such as Early Kick Loss Detection and controlling inflows of over-pressured disposal zones, using MPD for performance drilling is a novel application in the area. Performance drilling is the act of reducing the typical, conventional mud weights, and supplementing the decrease in hydrostatic pressure with applied surface back pressure. This reduction in mud weight allows for cost savings in multiple areas, increases in ROP and an overall reduction in well construction costs.
CrownQuest wanted to implement MPD, for performance drilling, on deeper basin Wolfcamp wells (Wolfcamp D), where higher mud weights (12.5-13 ppg) were commonly being run. The well was planned for a 2.5 pounds per gallon (ppg) reduction in mud weight, compared to conventional. These wells drilled with reduced mud weights were compared with previously drilled Wolfcamp D wells in the same area. The results showed a 23.8% increase in average ROP throughout the production hole section and an average of 5.85 days saved, with the implementation of MPD for performance drilling. Enabling a lighter mud system also seen a reduction in average lateral mud costs of 25% related to building and maintaining the mud, as seepage losses were reduced and fewer weighting and supplementary materials were required for maintaining the active system. Lower mud weights reduce the ECD at the bit and reduce solids in the mud, which allowed for further changes and improvements to the drilling program. After MPD was implemented, these changes enabled the operator to complete a pace-setter, one-run build and lateral section with a intermediate drill out time to rig release (RR) of 5.3 days. Using MPD for performance drilling can save days per well, reduce costs, and improve overall ESG and well economics.
Wolfcamp wells that require heavier mud weights, and are considered more difficult to drill, than upper Wolfcamp formations can become more economical by implementing these performance drilling methods. These techniques to drill deeper Wolfcamp targets more economically could prove invaluable as prime acreage and shallower Wolfcamp targets are drilled and depleted.
Improved Logging Techniques and Interpretation Experiences to Evaluate Perforate-Wash-Cement Intervals
Authors: Govil Amit , Obando Palacio Guillermo A. , Middleton Roy , Constable Kevin , Hovda Lars , Mueller Dan 
Published: February 2024

Abstract
At times during the lifetime of an oilfield well, there is a need to establish or rectify a barrier by using the perforation-wash-cement (P/W/C) remedial procedure. Evaluation of the P/W/C interval is carried out by sonic and ultrasonic logging tools. Depending on perforation hole size in the casing the bond log quality can be affected, rendering the logging results invalid or qualitative only. Knowledge gathered in the Norwegian Continental Shelf (NCS) has allowed for improvement in techniques and data processing workflow for the P/W/C procedure.
The toolstring is reconfigured to acquire data at the highest resolution possible across an optimized logging interval. Originally, the procedure was standard cement evaluation, but through experience, the logging and data processing methodology has been improved to better accommodate the challenges posed by the P/W/C environment. Acoustic impedance images are processed with an advanced methodology widely used for open hole geological images. It applies linear feature reconstruction (inpainting) and a texture reconstruction algorithm in a multipoint statistical approach to predict data behavior in the perforation-affected interval. Different processing options are available, allowing comparison to select the most representative result.
Behind the casing, cleanup efficiency depends on many parameters, including perforation design. The log data quality is greatly influenced by the density of the perforation shots, the entrance hole size, and perforation pattern. To evaluate the cement, a centralized toolstring, speed-corrected depth, and high-resolution datasets contribute to obtaining a highly detailed cement map of the annular conditions across the P/W/C intervals. This allows the implementation of further processing to strengthen the possibility of accurately reconstructing the acoustic impedance maps to provide the operator with an informed evaluation of the cement status. In multiple cases, the bond quality of the annular contents prior to the P/W/C operation have been logged to establish a baseline and make a proper pre- and post-evaluation, and such logging is recommended. In addition, blank sections due to gun connections across the perforated intervals allow an additional check to the overall log quality.
Lessons learned from P/W/C logging were shared in the NCS across multiple operators and globally.
Dual-Use Fluid for Reservoir Drilling and Screen Running Significantly Simplifies Drilling Operations and Mud Logistics without any Negative Impact on Productivity of Horizontal Oil Producer on the Norwegian Continental Shelf
Authors: Czuprat O. , Meyer D. 
Published: February 2024

Abstract
Displacement to a dedicated screen running fluid (e.g. low-solids mud) is a common method to lower the solids loading of the fluid prior running the completion screens in order to minimize the risk of blockages. However, some advanced drill-in fluids exhibit excellent long-term stabilities under downhole conditions which allow for a dual use also as screen running fluid. A systematic selection of such a fluid for a horizontal well in an oilfield offshore Norway is presented.
Samples of different 1.2 SG oil-based drilling fluids and screen running fluid candidates were statically aged at 200 bar and 87 °C for 1 and 2 months. Complementarily characterization was performed by running viscometer sag shoe tests and laser particle size analysis of the samples. Actual core plugs of the reservoir section were selected for core flooding/formation damage tests covering different drill-in fluids and sequences including screen insertion with and without prior displacement to an actual screen running fluid. The return permeability and a detailed required draw-down analysis was performed.
Experiments have shown that the downhole stability is commonly underestimated when the surrounding pressure is lower than in the field like in a conventional aging cell. One of the drill-in fluids showed superior long-term stability with maintaining mobility even after 2 months of aging and no phase separation of significant settling. In contrast, the low-solids oil-based mud showed significant phase separation and some settling. Laboratory results were implemented to the flied by strict specification of the mud properties and verification by a comprehensive post-operational QA/QC of field samples in the laboratory.
The success was proven by no negative impact on productivity of the well compared to previously drilled and completed wells in the field. However, running the completion in DIF resulted in significant de-risking of drilling operations, cost savings and eliminated logistical challenges from previous wells.
Continued Advances in Performance in Geothermal Operations at FORGE Through Limiter-Redesign Drilling Practices
Authors: Dupriest Fred E. , Noynaert Samuel F. 
Published: February 2024

AbstractThe continued application of physics-based limiter redesign workflow in the hard geothermal granite at the Utah FORGE project resulted in additional advances in hard rock practices and performance. The physics-based approach provided an effective framework to mitigate and address drill bit, geologic, trajectory, and downhole tool challenges and limitations. The advances were possible because the operating team was trained to understand how bit dysfunction and other non-bit limiters physically work, and had the knowledge required to mitigate these limiters in real-time or redesign to extend them when possible. In the final runs of the most recent well in the field, the ROP when rotating bent motors ranged from 150 ft/hr. to more than 300 ft/hr. and overall cumulative on-bottom rotating hours were reduced despite a more challenging, high angle well path with steering constraints.The paper covers the workflows and practices used to:Extend the safe WOB and RPM limits of bits beyond the industry's common practices in granite (65-70K lbs. and 250 RPM on 9.5" bits) Continue to expand the industry's understanding of the application of clear water drilling fluids to mitigate low drill rates caused by dilatant strengthening (bottom hole balling) Drill with RSS in granite to achieve a smooth curve to 65° inclination. Demonstrate practices for drilling a high angle tangent with a bent motor to achieve higher drill rates while still delivering borehole quality equaling or exceeding that of an RSS. Evaluate practices to reduce the large decline in ROP observed in early footage with all bits in hard formations. This represents the largest opportunity for additional performance gains in geothermal drilling.The paper incorporates both the specific practices implemented and the processes required to take a new operations team from initial project startup to record setting performance within the span of a single well (each FORGE well has been drilled by a different team). The authors’ intent in this and the previous paper, SPE 208798 (Dupriest and Noynaert, 2022), is to enable others to duplicate the gains at FORGE.