bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancing Competency Assurance for Non-Organic Construction Site Supervisors: A Structured Approach for Effective Technical & Leadership Development in Project Management and HSE Performance
Authors: Wijaya Hendrik Agung , Yusof Yushafidi Bin , Bawan Mohd Zainuri Bin 
Published: November 2024

ABSTRACT
This abstract presents a structured approach designed to ensure the competency of non-organic staff (third party workforce), specifically Construction Site Supervisors, who are critical to project management and Health, Safety, and Environment (HSE) performance. These supervisors, often hired through third-party contracts, lead diverse teams, sometimes overseeing operations on offshore accommodation barges. Unlike permanent staff who benefit from comprehensive competency assessments, these contracted supervisors typically only undergo entry interviews, leading to gaps in competency assurance.
The approach leverages on structured job competency profiles and leadership requirements, focusing on developing a rigorous assessment procedure. This involves subject matter experts and technical professionals to evaluate essential skills and HSE leadership proficiency. By identifying critical competency areas and involving project and technical managers in the assessment process, the initiative ensures that evaluations are credible and relevant.
Initial results show that while most construction site supervisors are competent, some require reassessment. Common gaps identified in the assessments have informed targeted intervention plans, with a strong emphasis on hands-on, site-based verification. This practical approach is recognized as more effective than traditional training methods, which often have limited impact.
This approach provides a simple yet powerful method to ensure the competency of non-permanent staff in critical project roles. By emphasizing practical assessments and involving managerial-level personnel, organizations can greatly improve the effectiveness and credibility of their competency assurance processes
Acid Volume Reduction Impact on Slickwater Hydraulic Fracturing Efficiency in Multi-Fractured Unconventional Horizontal Wells
Authors: Alowaid Abdulrahman. M. , Mechkak Karim , Rueda Jose I. 
Published: November 2024

Abstract
The objective of this paper is to highlight the results of an acid volume reduction, and elimination study that was performed on multiple unconventional wells, through evaluating various stimulation parameters, and quantifying the differences acid volume has on slick-water stimulation treatment. The assessment depends on the evaluation of different stimulation parameters resulting from the reduction of acid volume at each slick-water hydraulic fracturing stage within a particular well, and extends those understandings to compare offset wells. Impacts on various stimulation parameters such as the Instantaneous Shut-In Pressure (ISIP), net pressure, and perforation efficiency were quantified, then summarized for each batch of stages where a certain acid volume was used, with the overarching goal to quantify the differences on the overall stimulation treatment. The studied wells included an acid volume reduction assessment that was performed in increments of 50%, 75%, and complete acid elimination to achieve a comprehensive evaluation at different acid volumes and when acid is excluded from the stimulation design. At each stimulation stage, average treating pressure, Friction Reducer (FR) concentration, ISIP, and perforation efficiency were the subject of evaluation pertaining measurable parameters used directly for comparison. In general, the overall treatment of stimulation operations was fairly similar for the different acid volume designs used across the application examples highlighted. Similarly, for FR concentration and consumption, reduction in acid volume had no significant impact. ISIP on the other hand, was higher when acid volumes were reduced, and even highest when acid was removed. The final parameter, perforation efficiency, calculated through an in-house developed perforation efficiency estimation tool, yielded consistent improvements when acid was removed. Results from this study yielded a direct quantification of the impacts acid volume reduction has on various stimulation parameters. It was observed that purely from stimulation evaluation, there isn't a negative impact in reducing the volume, on the contrary, eliminating acid yielded stimulation efficiency improvements. The novelty of this paper is that it evaluates the reduction and elimination of acid in slick-water stimulation treatment using cost-free raw stimulation data. The outcomes of this assessment aid significantly in the diagnosis of acid volume reduction within different wells, and identifies optimization opportunities for future applications.
Harnessing the Power of IoT and Cloud Technologies to Simplify Asset Integrity And Monitoring
Authors: Paraschiv A. 
Published: November 2024

Abstract
This paper addresses the critical need for robust asset integrity management in offshore environments, where marine structures face cyclic and environmental loads due to changing sea-state conditions. It emphasizes the necessity for offshore installations to ensure elevated levels of safety and reliability while managing costs and minimizing environmental impacts. The scope extends to the challenges of maintaining asset integrity amidst varying magnitudes and directions of dynamic loads causing alternating stress levels as wave conditions change over time. Each repeated wave crest and trough can lead to fatigue in the materials of offshore structures. Over time, these stress concentrations can accumulate and result in cracks, weld failures, and other forms of degradation.
The study explores the use of Internet of Things (IoT) technologies in wave radars together with their capability of connecting to Cloud solutions. These technologies offer real-time, high-frequency data and integrate with third-party data sources to enhance asset monitoring and management. The process involves deploying IoT sensors to collect, analyze, and manage data across multiple disciplines involved in asset integrity management. This integration facilitates a unified approach to data handling and decision-making.
Observations indicate that the use of IoT wave radars and Cloud technologies significantly improves the resolution and quality of data necessary for continuous monitoring of asset integrity as well as serviceability of offshore installations in parallel with the continuous focus on reducing cost and environmental impact. The technology enables operators to anticipate and respond to potential degradation and stress accumulation, thereby preventing structural failures such as cracks and weld failures. Enhanced access to data with suited resolution and quality together with analysis capabilities allow for more informed decision-making and operational adjustments without compromising the integrity and safety of the assets.
Game Changing Strategy in Completions and Fracturing Technology Enhances Efficiency and Sustained Production
Authors: Rahim Zillur , Wilson Stuart , Watson Mark 
Published: November 2024

Abstract
Drilling of long horizontal wells in high temperature, high pressure, and high in-situ stress environment, although challenging, has become almost a norm in the development of moderate to tight conventional as well as nano Darcy unconventional reservoirs. The increase and expansion of multistage completions and fracturing and current advancement has empowered the oil and gas industry by providing the ability to effectively place a logn wellbore and fracture specific reservoir intervals as per design strategy.
In developing moderate to tight formations, strategic choice in type and placement of completion assembly along with design and implementation of optimal hydraulic fracturing in the most cost-effective manner is required. To attain high productivity, sustained production rate, and improved ultimate recovery, each reservoir and well must be studied individually and custom select completion assemblies combined with fracturing equipment and materials such as acid or proppants, fluids, chemical diverters, and pumping schedule.1 The directional drilling azimuth and lateral length will dictate the total number of independent hydraulic fractures that can be generated. The azimuth of the lateral dictates the direction hydraulic fracture will propagate. Usually, wells in relatively tighter reservoir are drilled in the direction of minimum horizontal stress, so that fractures are created perpendicular to the wellbore.2 For drilling purposes, choice of this azimuth poses difficulty as the stresses acting on the wellbore becomes high, and precautions are taken to maintain wellbore diameter, shape, and integrity.
Moderate to tight reservoirs are drilled in the direction of minimal in-situ stress to enable development of oblique or transverse fractures. The total number of transverse fractures to induce and placement of fracturing ports and isolation packers in an open hole completions system are critical parameters to achieve long-term, optimal production. This paper addresses some essential elements of an openhole configuration and presents field results leading to sustained long-term production, excellent hydrocarbon recovery, and economic gain. The other common completion category, plug & perf (P&P), also can be a good strategy but has some shortcomings that are overcome with openhole completions.
Characterization of 3D Pore Structure in a Carbonate Reservoir Through Rock Typing: a Case Study of Khasib Limestone, Ah Field, Iraq
Authors: Chen Mingjiang , Zhang Qing , Li Hongxi , Han Chong , Yang Bei , Li Xiansheng 
Published: November 2024

Abstract
The Khasib limestone reservoir in the Ah oil field of Iraq is characterized by a variety of pore types and pore interconnectivity resulting in strong heterogeneity in fluid flow capability. To elucidate the underlying factors contributing to the elevated water cut and swift penetration of injected water in horizontal wellbores, this study proposes a novel methodology for characterizing pore structure variation within the three-dimensional reservoir space of the Khasib limestone, utilizing a rock typing approach.
Core slabs, thin sections, scanning electron microscopy (SEM) and mercury injection capillary pressure (MICP) curves obtained from cored wells are subjected to quantitative analysis. A multi-hyperbolic-tangent function is created to quantify the MICP curves and pore-throat size distribution is obtained. By integrating lithofacies and petrophysical properties, 24 rock types are identified in cored wells and spatial distribution of these rock types is elucidated through well-log clustering; Pore structure parameters, including pore types and pore-throat radii, are upscaled for each rock type by introducing a volumetric weight factor. Consequently, a 3D visualization of pore structure variation within the Khasib reservoir is achieved.
The Khasib reservoir is stratified into seven distinct horizons, with its effective pore-throat radius varying from 0.09 μm to 9.2 μm, showing an increasing trend upwards and a decreasing trend westward along the major axis of the structural anticline. Among these horizons, the Kh2-1-2L horizon, characterized by an average thickness of 0.8 m, predominantly comprises two rock types typified by interparticle porosity. These two rock types exhibit an average effective pore-throat radius of 8.53 μm and a permeability of 278 mD, surpassing neighboring rock types by several orders of magnitude. It is designated as the high-permeability "thief zone," serving as a preferential conduit for fluid flow and representing the principal factor influencing the rapid breakthrough of injected water.
The findings are corroborated through production logging and discernible variations in resistivity observed in vertical wells. These results hold significant implications for optimizing protocols to stabilize oil production and effectively manage water influxes. The method presented in this paper also provides a reference for production optimization in other types of reservoirs.
Developing Leaders Through a Transparent Succession Management Approach
Authors: Thomas Rincy Mariam , Al Ali Dhabia Majed 
Published: November 2024

Abstract
This paper addresses the concept of enhancing transparency in the succession process to drive ownership of successor development and create a sustainable talent pipeline.
The scope includes Line Driven Succession, which leverages technology to enable the identification and nomination of successors, forming a core component of this transparent approach. This aligns with strategic business goals aimed at developing future leaders.
The Line Driven Succession Process is a people-centric, data-driven approach that leverages technology to enable line managers to access and review talent data and provide nominations based on their authorized organizational level. Upon approval of the nominations, successors are informed of their inclusion in the ADNOC talent pool to facilitate targeted development.
This transparent approach empowers line managers and engages successors to actively pursue development in preparation for future opportunities. Key enablers include enhancing organizational maturity, fostering a growth mindset, providing career opportunities, engaging employees, and ensuring effective communication.
Transparency is implemented through a phased approach to cultivate organizational maturity and improve employee engagement and retention.
Leveraging technology and transparency in Succession Management represents a transformative approach for ADNOC, addressing the limitations of traditional succession planning and resulting in more efficient and effective talent management processes. Transparent Succession Planning aims to foster a culture of openness, ensuring business continuity and talent retention.
Following the implementation of Line Driven Succession, a survey revealed that 93% of participants were satisfied with the improved succession process. Initial observations from key stakeholders indicated that the transparent approach would motivate talent to drive their development. Conclusions underscore a shift towards fairer and more objective decision-making based on comprehensive talent insights.
This paper aims to provide new insights into the application of technology and the promotion of transparency in Succession Management processes. The Line Driven Succession project is novel in emphasizing the role of line managers in identifying and developing potential employees. Transparency ensures that stakeholders are well-informed about decisions and changes, fostering an environment of trust and collaboration.
Digitisation of Marine Break Away Couplings with a View to Improve Marine Hose Operations
Authors: Zandiyeh A R Kambiez 
Published: November 2024

Abstract
For offshore import and export of crude oil and other products systems such as SPM (Single Point Mooring), Floating Production Storage and Offloading (FPSO), Multi Buoy Mooring (MBM), etc. may be used. The main equipment that make up these systems can be summarized as the structure e.g. Calm Buoy, floating and submarine hoses. A typical SPM system is illustrated in Fig. 1 and the equipment used in these may be classed as critical enabling continuous and reliable operation of the system. However, these are at risk of damage and failure due to a range of factors such as tanker breakout, surge pressures, extreme environmental conditions, etc. Failure of any of these critical equipment can have catastrophic consequences such as environmental damage, system downtime, etc. To protect the entire system from damage Marine Break Away Couplings (MBC) are used and typically installed among the floating and submarine marine hoses. The location where an MBC is installed in a SPM system is highlighted in Fig. 1. An MBC is designed to activate at a pre-defined axial and pressure load protecting the system. Further, the MBC automatically energizes internal valves preventing the product from being released into the environment.
In the main, the design of an MBC has remained unchanged for over 30 years. In this period, although the industry has benefited from the safety protection offered by an MBC, on occasions the industry has experienced short falls in the operation of an MBC. For example, in case of an activation at night, it has not been possible to detect the activation, conduct an effective root cause analysis to determine the exact reasons for an activation, a partial separation of the two halves of the MBC has gone unnoticed, etc.
Reservoir Architecture and Channel Belt Mapping of Fluvial Systems: A Case Study from the Middle and Upper Members of the G Formation in the B Field, Central Oman
Authors: Al Mughairy Muthanna , El Ghali Mohamed 
Published: November 2024

Abstract
The G Formation is one of the most prolific hydrocarbon reservoirs in the Sultanate of Oman and is the target for extensive exploration and production campaigns. The study seeks to understand the reservoir architecture, depositional environments, and reservoir quality of the upper and middle members of the G Formation. In particular, Middle G 2 (MG2), Middle G 1 (MG1), Upper G 4 (UG4), and Upper G 3 (UG3) in the B field. Well correlation was conducted on 53 wells in the B field using the Petrel (2020) software for all G units. Paleogeographic (channel fairway) maps of G subunits were created with the aid of log signature analysis, petrophysical facies logs (reservoir rock typing), and paleocurrent analysis. Integrated reservoir descriptions "plumbing diagrams" scenarios were created and linked to the paleogeographic maps. A conceptual depositional model of Middle and Upper G was created based on this analysis. The reservoir quality of Middle G was assessed using log data and limited core data and linked with the previous findings of the study. Well correlation results indicate that MG3 was deposited in a shoreface environment. In contrast, MG2 and MG1 were deposited in a fluvial environment dominated by ephemeral channels and sheetflood deposits in an arid to semi-arid climate. UG4 was deposited above an erosional surface, resulting in compensational stacking in a meandering fluvial environment, while UG3 was deposited in a classical high-sinuosity meandering fluvial system (humid/tropical climate). MG2 and MG1 paleogeographic maps indicate two channel belt orientations trending NW-SE and NE-SW, with relatively wide channel belts. UG4 and UG3 show an overall channel belt orientation of NE-SW, matching the regional channel belt orientations. MG1 in the B field is Arkose to subarkose in composition, while MG2 is dominantly litharenitic to sublitharenitic. The reservoir quality of MG1 is highly impacted by clay mineral infiltration directly below an erosional surface. Conversely, the reservoir quality of MG2 is controlled by the rock fabric and compaction. The distribution of the reservoir properties in the B field was found to closely resemble the paleogeographic maps of this unit. This work presents a novel approach to mapping the distribution and deposition of complex and heterogenous fluvial reservoir systems. The use of a combination of log signature analysis (qualitative), reservoir rock typing (quantitative), and paleocurrent analysis is seldom seen in these types of reservoir systems. This study also outlines methods of predicting the reservoir quality of fluvial reservoirs when core data is unavailable or limited.
The Feasibility of Autonomous Flow Control Devices for Matrix Acid Stimulation Operations in Carbonate Reservoirs
Authors: Ganjoo Virochan , Moradi Mojtaba 
Published: November 2024

Abstract
The matrix acidization operation has been extensively associated with unconformity. The challenge remains to distribute the acid treatment fairly along the wellbore. It has been observed that acid prefers the less resistance spots along the wellbore which are characterized by high permeability streaks / fractures. During the operation, the injection to these areas is highest which further increases its permeability whereas low permeability zones never receive the similar treatment and are left out with lower permeability.
To counter this challenge, an approach of utilizing an advance completion consisting of Autonomous Outflow Control Device's (AOCD) was implemented.
Although there are multiple case histories of successful installation of AOCD in water injection wells for conformance, the high rate of stimulation operation poses a major challenge. This study involves developing a methodology to ascertain that a similar performance of acid stimulation can be achieved with much lower rates through optimization. This will be possible by conforming stimulation fluids through the wellbore, allowing operation to be executed at lower rates than Open hole or standard completion. The solution will also provide cost effectiveness as a much less volume of fluids will be required to produce better performance as compared to non-optimized completion. The study also involved upgrading a stimulation software to convert it into a fit for purpose platform which will incorporate the operational envelope of AOCD.
The AOCD is a rate-controlled device. At the heart of the device is a spring-based mechanism that reacts to the pressure drop/flow rate across the nozzle. Once a predefined upper flow-rate limit is reached at a zone, the valve autonomously closes. This eliminates the impact of the thief zone on acid injection conformance and maintains a prescribed acid distribution.
The technology is proven in water or polymer injection wells; this study highlights the value addition that AOCD can bring to matrix stimulation operations; further presenting AOCD as a fit for purpose solution for injection wells irrespective of the injection type or application. A novel approach is developed through modelling to display that Autonomous Flow Control Devices can provide substantial value in stimulation operations. This will enable the operators to minimize the impacts of heterogeneity on the acid conformance and the completion system will autonomously respond to a dynamic change in reservoir properties, specifically the growth of wormholes.