bluuebunny/crossref_metadata_2025_split huggingface dataset:
Demystifying Dynamic Evolution of Fault System and its Controls on Karsted Reservoirs by Multi-Technology Integration
Authors: Wang Rujun , Tong Yanming , Zhang Yintao , Wu Chuan , Zhu Yongfeng , Wang Gaige , Wu Jiangyong , Yang Pin , Tan Chenqing 
Published: March 2023

AbstractThe Tazhong paleo-uplift is one of the most important hydrocarbon enrichment areas in Tarim Basin. After years of exploration, many reservoirs have been discovered in the deep Paleozoic carbonate karsted rocks. Current research suggests that tectonic evolution and faulting movements have an important impact on reservoir development and hydrocarbon accumulation. But the reservoir prediction reliability is greatly compromised due to the lack of appropriate technical means to ascertain the geometric and kinematic characteristics of fault system more accurately. We solve this difficulty to a great extent by integrating a series of new applicable technologies.Firstly, the existing seismic amplitude cube was further processed with the technology of "vector high fidelity signal enhance" which enhanced the natural bandwidth of seismic imaged volumes by simultaneously optimizing the signal and frequency content. Then more details of large-scale faults in the target interval were displayed. Secondly, a variety of fault detection methods were used to trace all possible large-scale faults including conventional edge-detection methods such as Variance cube and new method of "end-to-end convolutional neural network (CNN)". Thirdly, "auto fault patch extraction" was performed and the extracted fault patches were combined with some manual work to make sure they followed certain structural patterns according to the regional geological knowledge. Fourthly, the kinematics of the mapped fault system including its grouping and staging were carefully explored based on "discontinuity stability analysis" and traditional geological analysis. The former was based on Mohr-Coulomb criterion considering friction angle and cohesion of the faults, their attitudes and the 3D paleo-stress fields corresponding to different tectonic events. And the latter mainly focused on vertical layering of seismic structures considering vertical variations of fault patterns and strata attitudes, offset formations, stratigraphic unconformities, growth formations and fault patterns in plan view, etc.It was suggested that the karsted carbonate reservoirs in some regions were mainly related to 3 types of fault damage zones, i.e. strike-slip fault damage zones, reverse fault damage zones and the hybrid ones. Among them, the parts with larger deformation, pull-apart basin, En echelon structure, faulted anticline, and superimposed elements were the most favorable belts to target high performance producers.It is the first time to integrate so many applicable new technologies to ascertain more clearly the geometry and kinematics and the fault system in the deep karsted carbonate reservoirs which are otherwise blurred on seismic images. This can be applied directly for optimized well placement and can also be referred to for similar industrial projects.
Role of Talent Management in Business Continuity
Authors: El-Haraki Sanaa M. Refaat 
Published: March 2023

AbstractTalent Management plays a crucial role to support the business continuity and empower the most important asset for the company – its people. The role that Talent Management has played was highlighted in different aspects across the organization, starting from developing competent HR team and HR department structure that can influence company culture by taking an active approach in this regard.The journey started by working with the executives and stakeholders across the business to evaluate the current company culture, assess potential gaps or opportunities, and create a strategic plan to align the organization's culture with its values and goals.Moreover, a deliberate building of core and supplementary HR systems serving the business strategy while respecting culture readiness has taken place. This started off with developing leadership development programs, conducting a competency management system for better training and skills development, relying on assessment tools in recruitment and using these tools in the on-boarding, knowledge sharing approach, creating a performance management culture and working on continuous development and improvement.The Leadership Development Program was achieved on 3 phases: Assessment phase, Development phase and re-assessment phase. One of the main objectives that we tried to focus on while implementing the leadership development program was to find employees who are potential leaders and nurture them early enough. In addition, it was crucial to identify a Leadership Competency Profile to have a clear, compelling vision of how the skills we were building in the leadership development program connect to the leadership road map in the company. In addition, and in the light of Covid-19 and the absence of Employee Training in 2020, the HR department came out with an initiative to carry out internal knowledge sharing workshops across the company. These workshops aimed at increasing employees’ awareness with the different functions across the company in addition to increasing the level of engagement, communication, and presentation skills for employees.There is always a need to measure where we are and the progress done so far to know where we want to be and adjust the process accordingly. Therefore throughout all of these processes and programs, different feedback surveys were conducted to take necessary action plans. This helped in getting all employees onboard with us. Ultimately the alignment that was made between the Talent Management and the overall company's business strategy resulted in the company's ability to maintain a competitive advantage. A huge progress was made but the process continues to sustain this role.
Quality Control Technology and Application of Node Consecutive Recording Data
Authors: Zhang Hongtao , Zhang Duorong , Sun Zhe , Wang Jianfeng , Jie Mingli 
Published: March 2023

Abstract
Different from the wired instrument seismic acquisition project, the node instrument seismic acquisition construction project cannot generate the data of common shot gathers or common receiver gathers in real time. Only after segmentation processing can form a common shot gather or a common receiver gather data. The data segmentation operation is very time-consuming, and the generation of the common shot gather needs to wait for all the nodes used by the shot to be recovered, resulting in a lag in the subsequent quality control process, so it is difficult to detect data quality problems in time. In order to improve the efficiency of quality control, this paper proposes a method for the quality control of seismic acquisition data directly for the consecutive recording data of the node. The data integrity check, energy quality control, etc. can be realized. Usually, the check of the recycling node data can be completed on the same day, which ensures the quality of the collected data. The application effect of the actual project also verifies the practicability and effectiveness of the method, which greatly improves the data quality control efficiency of the node collection project, and provides an effective guarantee for the quality of the data collected by the node.
Strategic Modelling Approach for Optimizing and Troubleshooting Gas Lifted Wells: Monitoring, Modelling, Problems Identification and Solutions Recommendations
Authors: Ali Ahmed Maher , Negm Mohamed Nagy , Darwish Hatem Mohamed , Mansour Khaled Mohamed 
Published: March 2023

Abstract
Offshore gas-lifted wells are challenging due to the numerous factors affecting performance, starting from the surface gas compression facility to reservoir performance. Mature oil fields add more challenges due to many flow assurance and mechanical problems. Real-time well monitoring is a must for early problem identification. Also, performance modeling is powerful and helpful for identifying and rectifying problems early. The work here emphasizes an optimization strategy for offshore gas-lifted wells.
This paper introduces cases of offshore problematic gas-lifted wells and their full optimization and problems solving strategy to be utilized as an integrated approach for solving the problems of similar problematic gas-lifted wells in any field. The recommended strategy depends on studying problematic gas-lifting wells covering some commonly encountered problems. The recommended remedial actions for the selected problematic cases in this intensive study resulted in precious oil gains, cost savings, and gas lift usage optimization. The solution combines surveillance, multiphase simulation, data analytics, and operations.
This paper discusses three major problems and the strategy to solve them: the first is wells with erroneous surface gas measurement and excessive gas injection; the second is unstable gas-lifted wells, and the third is optimizing low reservoir deliverability gas-lifted wells. In addition, other individual optimization cases, including integrated full-field cases, are introduced for the recommended strategy's completeness. This comprehensive study finds that the optimum approach for rectifying most gas-lifted wells problems must start with real-time monitoring, then modeling the case, and end by recommending possible solution scenarios and their impact on optimizing well performance.
This study brings the significance of surveillance and dynamic simulations in the overall production cycle: planning to operations. Further, dynamic simulations also help arrive at operators’ guidelines on avoiding failed start-ups and ensuring stable operation. Finally, the power of integration between different disciplines is shown by incorporating several subsurface and surface information in the uncertainty study.
An Extensive Evaluation of Different Reservoir Simulators used for Polymer Flooding Modeling
Authors: Tellez Arellano Aaron G. , Hassan Anas Mohammed , Al-Shalabi Emad W. , AlAmeri Waleed , Kamal Muhammad S. , Patil Shirish 
Published: March 2023

AbstractThe global interest in enhanced oil recovery (EOR) methods has been increasing recently as a source of satisfying the ever increasing energy demand. This is due to maturing of most of the existing and significant hydrocarbon reservoirs as well as the very limited number of new oil major reservoir discoveries. This is added to the challenging existing reservoirs conditions such as viscous oil, mixed-to-oil wettability, heterogeneity, and high temperature high salinity (HTHS). Polymer flooding is one of the robust and inexpensive EOR processes that improves sweep as well as displacement efficiencies. However, modeling of polymer flooding is a challenging task due to the difficulty in portraying all of the key physico-chemical aspects such as polymer rheology, adsorption equilibrium, inaccessible pore volume, and behavior against high salinity and hardness. This challenge has shifted the attention and efforts towards developing reliable reservoir simulators as tools for predicting and mitigating the risks-involved with polymer flooding projects.In this study, we present a critical review of recent modules from different numerical simulators with chemical EOR (cEOR) competences such as CMG-STARS, ECLIPSE-100, and UTCHEM to model polymer properties. The review starts with description of numerical formulation and applications for different simulators. This is followed by descriptions of polymer models including viscosity, salinity effect, rheology, adsorption, and permeability reduction. Afterwards, the assessment of different simulators is presented through polymer flooding simulation cases as reported in the literature. It is to be noted that the overall results did not provide an insight into algorithm efficiency or computational cost of different numerical simulators, but instead mainly focused on the mechanistic modeling of the process with different parameters. The results suggest that with an appropriate mechanistic modeling of polymer flooding, there is potential for accurate prediction and optimization of various polymer flooding projects under diverse conditions, which is expected to positively impact the oil recovery efficiency and related economics. This study provides insights about the application scopes of different numerical simulators and their competences under diverse reservoir scenarios in order to obtain optimized performance of a polymer flooding field project.
Personal Protective Equipment Detection Using Computer Vision Techniques
Authors: Aldossary Rawabi Sultan , Almutairi Manar Nasser , Dursun Serkan 
Published: March 2023

AbstractThe intensive use of chemicals, machines and electrical assets introduced unsafe conditions to the workplace. An unsafe condition is a physical condition that can cause an incident, such as operating without training, defective supplies and poor housekeeping. Such conditions might cause serious injury or even death. As well as the human impact, unsafe conditions have a significant impact on operational excellence and the financial state of a company. Companies are committed to ensure a safe environment by setting safety polices, conducting safety training, fire prevention systems, safety manuals and signboards and providing safety gears. Personal protective equipment (PPE) is safety equipment that can maintain the safety of employees in hazardous conditions, such as hot surfaces and toxic chemicals that can cause serious injuries and illness. PPE is sometimes referred to as the last line of defense. Some workers might not comply with safety policies or refuse to wear the PPE. To overcome the manual safety checks and compliance of employees, in this paper we propose an AI-powered computer vision automation solution leveraging the state of the object detection model. Computer vision is the field that mimics human vision to extract purposeful information from videos and images. Computer vision brings about various functionalities to perform tasks such as object detection, object classification, object identification and object verification. The proposed solution is developed by using a computer vision technique that detects various types of PPEs in real time. The main purpose of this project is to detect a presence of eight classes (person, helmet color: Red, Yellow, Blue and White, head, vest, glasses). The best results are achieved by applying YOLOv5 on a set of construction site images with corresponding annotations in YOLO format. The proposed solution automates the process of detection and monitoring PPE and employee behavior in operation fields in real-time. Automating the detection can reflect the business value by reducing the timeframe for tracking, creating a safe environment that in turn can increase the productivity and safety of the workers and reduce the costs of operations. The proposed solution includes all the components of data ingestion, data processing, object detection model and deployment on the edge device or server to improve safety.
Investigation of Acoustic Velocity of Carbonate Rocks and the Effect of Cracks on Velocity
Authors: Chen Jianming , Zhang Haiyang , Arif Muhammad , Tu Yunzhong , Zhang Jiasheng , Wang Xiaosai , Nizamuddin Syed 
Published: March 2023

AbstractThe acoustic velocity is very closely related to rock properties such as porosity, permeability etc. These relationships are particularly important for carbonate rocks. It is thus vital to examine the interpretation of acoustic velocity as a function of rock properties. The primary goal of this study was to examine how rock properties e.g., porosity, permeability and crack density, affect the acoustic velocity of rock samples. For this purpose, 24 carbonate plug samples from Ras Al-Khaimah were examined. The recrystallized carbonates depicted a very low porosity and a significant amount of fractures were examined. A unified theory for elastic wave propagation through porous media containing cracks was used for the quantitative description of cracks and the relationship between cracks and acoustic velocity was also investigated. A positive correlation was found between the P-wave velocity difference and the corresponding inverted crack density difference. The results of this study provide new insights into the acoustic behavior of carbonate rocks.
Successful Application of Modified Diverter System to Drill Long Surface Hole - Provides Dynamic, Safer and Cost-Effective Solution
Authors: Umair Muhammad , Usmani Mohsin Muhammad 
Published: March 2023

AbstractDrilling hole with shallow gas risk has always been a challenge. Conventional Diverter system doesn't qualify for a well control device but a device that is expected to reduce safety risk. Unfortunately, Diverter system has numerous failures when engaged for diverting gas flow. This paper provides a successful case history of a feasible and sustainable solution to drill shallow holes with safer control of gas at surface and superior operational liberty.Diverter system coupled with autonomous Ram-BOP was deployed successfully in development well for drilling of a surface hole section with better control and safety. This Modified Diverter system allows independent control for Ram-BOP and Diverter operations with back-up flow path in case of diverter failure. This also creates ability to drill surface hole deeper by providing operational liberty to control or divert well flow.This system was designed to support two well control scenarios, on drilled depth basis, and prepared accordingly:Conventional diverter system, keeping alternate flow diversion path as backup to diverter failure Modified well control method, that approach well control with Kill Mud cap and provides option for close-system flow checkSurface hole section was planned to drill till 1300 meters BKB, with the application of this modified diverter system that allowed safe control of well/gas diversion in contrast to the conventional diverter system. For this purpose, Conductor pipe was set to 80m BKB rig less. And surface hole drilling was split in two sections with respect to application modes of modified diverter system. For initial 600 meters conventional diverter system was in-place with complete hole volume Kill Mud available at surface. This system also allowed alternate gas diversion in case of diverter failure during gas flow. For next 700 meters of drilling surface hole, same volume of Kill Mud was available to use as a mud cap and system allowed spotting mud cap and perform flow check in close-system environment, without exposing safety risk.This systematic approach allowed drilling of surface hole section deeper in a safer environment that was previously required to drill in two hole sections. This returned 400k USD direct saving in one well.
Nimr Fields High Permeability Propped Fracturing Case Studies and Lessons Learnt
Authors: Al Kalbani Muhannad , Al Ghaithi Ali , Al Kindi Said , Al Lawati Mehdi , Ibrahim Ayman , Christiawan Arya , Yuyan Rioka 
Published: March 2023

AbstractHydraulic fracturing in oil wells within the Southern parts of the Sultanate of Oman has been considered a niche application until recently. This is due to high formation permeability which is a key differentiator of oil fields in the South compared to the North where hydraulic fracturing is more prevalent in tight gas fields. Yet recently, hydraulic fracturing has gained momentum in the South as it started becoming a major well completion technique to increase production while decreasing drawdown. In addition to growing interest in injector well fracturing to enhance overall injector well pattern performance.While hydraulic fracturing in high permeability formations has historically been attributed to damage bypass and creating a more conductive and a larger effective wellbore radius, it has been considered a risky endeavor in oil wells where post fracturing retained permeability may impair well potential especially in cases where oil is of moderate to high viscosity. Hence in Nimr fields, located Southern Oman, hydraulic fracturing of high permeability zones required a fit for purpose fracturing strategy that maintained good retained permeability at the targeted formation with minimal damage. This strategy included candidate selection using a pre-defined criterion derived from regression modelling, utilization of tip-screen-out designs, enhancing oxidizing breaker concentration for better cleanup and flowback, and optimal artificial lift pump designs to suit newly fracturing zones.In Nimr, several poorly performing producers and injectors were treated in 2021 using hydraulic fracturing after being assessed against a rigorous selection criterion. These included several water injectors. Production and injection results were compared to the initially estimated Folds of Increase (FOI) prior to interventions. All wells achieved the expected estimated gain using a pressure matched fracture geometry estimate. Hence this method has provided a basis for further design optimization to increase production yield. Results have also provided lessons learnt in artificial lift pump sizing and pump seating depth. Injector wells were also assessed in respect to their patterns where results have shown significant pressure support to nearby wells, which in some cases revived wells that were previously shut in due to poor pressure support.The success of hydraulic fracturing in high permeability wells in the South of Oman has driven the increase in frequency and magnitude of these otherwise niche interventions. Although further optimization in candidate selection and treatment designs are needed to ensure capital expenditure is justified by production gain.