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Proceedings Papers

Proceedings Volume Cover
SPWLA 66th Annual Logging Symposium
May 17–21, 2025
Dubai, UAE
SPWLA 66th Annual Logging Symposium
SPWLA 66th Annual Logging Symposium

New Technologies and Applications

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Enhancing Mud Pulse Telemetry Performance in Deep Drilling Using Advanced Signal Processing and Deep Learning Techniques
Songwei Zhang; Jie Shang; Wei Chen; Zhiming Wang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0001
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An Underground Reservoir Resistivity Monitoring System for CO2 Reservoir Characterization
Shanjun Li; Weishan Han
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0002
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Enhancing Electrofacies Prediction with Fuzzy Logic: A Pathway to Improved Subsurface Characterization
Luis Miguel Rojas; Manuella Yebra; Lilian S. Souza; Frederico S. De Miranda; José Roberto Barbosa Corrêa; Vinicius Veríssimo Nobrega de Oliveira
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0003
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A Novel Hierarchical Correction of Array Induction Logging Data for Horizontal Wells in Tight Sandstone Reservoirs
Ping Qiao; Lei Wang; Yingming Liu; Xiaokai Xu; Xiyong Yuan; Fuhua Cao
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0004
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Oxygen Activation Logging: A New 3D Framework for Activation Modeling Brings a Step Change in Stationary and Continuous Water Flow Log Interpretation
Laurent Mosse; Jeffrey Miles; Chiara Cavalleri
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0123
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Pore-Scale Modeling as an Alternative to Petrophysical Lacking Data: The Example of the Brazilian Pre-Salt
Ronaldo Herlinger, Jr
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0124
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Case Study of Active Resistivity Ranging with Ultra-Deep Azimuthal Resistivity Measurements While Drilling
Diogo Salim; Yong-Hua Chen; Lin Liang; Jean-Michel Denichou; Antonio Mainieri da Cunha; Silas Alexandre da Rocha Roberto; Martine Wenang; Motaz Zeidan; Umut Ercan
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0125
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UDAR Horizontal Look Ahead Mapping Technology Identifies Fault Ahead of the Bit
Jin Ma; Nigel Clegg; Arthur Walmsley; Nelson Suarez Arcano; Frank Antonsen; Kåre Røsvik Jensen; Andrew McGill
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0126
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Formation Evaluation of Unconventional Reservoirs (I)

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Quantification of Mechanical Integrity of Clay Minerals in Clay-Rich Rocks Under CO2 Geological Storage
Jamil El Masry; Ibrahim Gomaa; Zoya Heidari; Elsa Maalouf
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0005
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Quantifying the Impacts of Spatial Distribution and Petrophysical Properties of Clay Minerals on the Multifrequency Complex Dielectric Permittivity of Shaly Sandstones
Mariella Khoury; Zulkuf Azizoglu; Zoya Heidari
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0006
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Complex Permittivity of Shale and Brine: Core Analysis Results and Interpretation
Seán Dolan; Nishank Saxena; Ronny Hofmann; Matthew Josh
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0007
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Dual Independent Oval Pads (DIOP) Platform for Testing Wide Range of Complex Reservoirs
Moutaz Abdein; Gibran Hashmi; Carlos Eduardo; Tony van Zuilekom; Robert Gales; M. S. Iyer; Sarvagya Parashar
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0008
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NMR Technology and Applications - High or Low Fields, Pores and Fluids (I)

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Petrophysical Characterization of Secondary Organic Matter and Hydrocarbons in the Early Jurassic Formation Using Laboratory NMR Techniques
Abdul Mohsen Al Mershed; Asmaa Al Hammadi; Hawraa Baqer; Mihira Narayan Acharya; Z. Harry Xie; Phil Hawley; Christie Woodroof; Seán Dolan; Matthias Appel
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0009
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Real Time Data Inversion Uncertainty Estimation of NMR Logs
Wei Shao; Songhua Chen; Gabor Hursan; Shouxiang Mark Ma
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0010
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Discrete Inversion Method for Nuclear Magnetic Resonance Data Processing and Its Applications to Fluid Typing and Quantification
Jun Gao; Hyung Kwak; Gabor Hursan; Stacey Althaus
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0011
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Study of Rock Physical Properties Characterization Methods in Porous Media Using Ultra-Short Relaxation MRI
Zhenshuo MA; Yan Zhang; Lizhi Xiao
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0012
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Integrated Open Hole Formation Evaluation

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Tortuosity Assessment for Reliable Permeability Quantification Using Integration of Hydraulic and Electric Current Flow in Complex Carbonates
Dalma Arrieta; Zulkuf Azizoglu; Pallavi Sahu; Zoya Heidari; Plinio Câncio
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0013
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Synergy of Intelligent Wireline Formation Testing Platform Together with Drill Stem Testing to Unlock Hydrocarbon Potential in Asia Greenfield
D. Ling; S. Daungkaew; M. Kristensen; C. Cavalleri; H. Espinosa; A. Gisolf; A. Thorat; M. Sarili; S. N. Cheng; C. L. Chua; A. N. Azwa; M. A. Abu Talib; E. Motaei
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0014
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Integration of Artificial Intelligence to EFDT Formation Testers
Qiang Yu; Xiaodong Chu; Sun Kong; Yang Shen; Minggao Zhou; Xiaofei Qin; Yanmin Zhou; Zhongli Bao; Youxiang Zuo
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0015
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New Insights into the Understanding of Sand Injectite Complexes, Using Advanced Log Data, Ultra-Deep Resistivity Inversions and Outcrop Field Observations
Sayyid Ahmad; Joanna Mouatt; Gianbattista Tosi; Fanny Dominique Marcy; Nigel Clegg
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0016
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Novel Applications of Data Analytics, Machine Learning, and AI

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Assessment of Textural Heterogeneity Tensor Using 3D Micro-CT-Scan Images
Pallavi Sahu; Dalma Arrieta; Zoya Heidari; Plinio Cancio Rocha da Silva
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0017
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Data-Driven Methodologies for Enhancing Efficiency and Accuracy in Wireline Formation Testing
Marcelo Abbehusen Magalhães; Lucas Abreu Blanes de Oliveira; Marcos Kalinowski
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0018
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A Method on Perforation Depth Investigation Using Borehole Acoustic Logging
Li Zhang; Wen Chen; Yue Liu; Chao Zhang; Xuekai Sun; Kun Shao; Xiqiang Li; Siyi Li; Hao Sun; Ran Zhang; Qi Zhang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0019
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A Missing Well-Logs Generation Method Based on Generative Adversarial Networks Models
Junxia Shi; Guangzhi Liao; Lizhi Xiao; Jun Zhou; Juan Zhang; Yubo Liu; Haishan Liu
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0020
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Pore Network Characterization Utilizing LWD Acoustic Pore Aspect Ratio and NMR Rock Typing for Enhanced Well Placement
Endurance Ighodalo; S. Mark Ma; Marie Van Steene
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0030
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Energy Transition: New Technology and Applications

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Impact of CO2 Cooling on Fluid Mobility in Shale: A T2 Tomography Study
Xu Dong; Jing Lu; Bo Liu; Jiahui Zhang; Junlei Su; Kun Liu; Junchen Wu; Xueying Shi
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0022
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Measuring Ultrasonic Velocities and Attenuation of H2 and CO2-Saturated Sands for Deep Saline Reservoirs
Gabriel C. Unomah; Mohamed S. El-Tayeb; Michael T. Myers; Lori Hathon; David Myers
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0023
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Comparative Study of Oilfield Chemicals, Polymers, and Nanoparticles for Hydrogen Gas Foam Formation in Subsurface Storage Applications
Shruti Joshi; Eziulo Ibe; Krishna Raghav Chaturvedi; Tushar Sharma
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0024
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Impact of CO2 Storage Time on the Physicochemical and Mechanical Properties of Sandstone Formations: Insights for Long-Term CCS Applications
Musa E. M. Ahmed; Deniz M. Paker; Joe Ramoin; Stephen Drylie; Birol Dindoruk
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0025
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Assessing Magnetic Methods for Estimating Mineral Content of Rocks in Northern Alberta
Elena Y. Temnikova; David K. Potter; Arfan Ali
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0026
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Poster session 1

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Production Estimation with Advanced Logging While Drilling Data in High Temperature Offshore Metamorphic Condensate Gas Reservoir
Fangfang Wu; Peichun Wang; Lei Xiong; Renfeng Zhang; Shenzhuan Li; Xiao Gu; Jinlong Wu; Xin Zhou; Changwei Qu; Chandramani Shrivastava
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0027
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Realtime Mud Gas Analysis: Optimizing Well Completion, Fluid Composition Predictions, and Comparison with PVT Data in Tight Carbonate Reservoir - West Kuwait
Ahmad Shoeibi; Jumah Meshael; Al-Mutairi Nami; Al-Wadi Meshal Abdul Hameed; Justin Fernandes; Oswaldo Klinger
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0028
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Application of Effective Permeability Calculation Method Based on Time-Dependent Inversion of Resistivity While Drilling in Tight Formations in the East China Sea
Zhang Hongwei; He Yuchun; Zhang Guodong; Zhang Zhongqing; Lu Fawei; Wei Jierui; Yin Lu; Xiong Anjie; Mao Baohua; Liu Baoyin
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0029
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Novel Three-Dimensional Integrated Approach for Distal and Near Wellbore Reservoir Characterization
Omar A. Almulhim; Alawi A. Tarouti; Olusegun M. Akinyose; Sharif M. Shalaby; Amro Abdel-Halim; Sherif Ghadiry; Mustafa Al Mubarak
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0031
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Water Saturation Conundrum: Getting It Right Through the Recommended Best Practices in Dean Stark Analysis
Siti Najmi Farhan Zulkipli; Jamari M. Shah
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0032
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Utilization of a Cuttings Based Advanced AI, Image and Elemental Analysis Workflow to Improve Subsurface Knowledge and Regional Geological Definition: An Example from the Devonian Section, Awali Field, Onshore Bahrain
Ezdeen Ibrahim; Bapco Upstream; Guy M. Oliver; Milton Sanclemente
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0033
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Unveiling Reservoir Potential with Worlds First 360-Degree Wireline Microresistivity Imaging in Oil-Based Mud for 12.25-Inch Borehole
Harish B. Datir; Joern Schuenemann; Anup Thorat; Peter Schlicht; Iver Kjørsvik; Stefan Lubeseder
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0034
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3D Petrophysics: Applying Calibrated Anisotropic Rock Physics Model to the Acoustic Impedance and Vp Vs Ratio from Seismic Inversion to Estimate Porosity and Permeability
Sergey Vorobiev; Mehdi Ghaneezabadi; Abdul Rahim Roslinawati
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0035
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A Pseudo-Extraction Efficiency Correction Method for Standard Mud Gas Data
Cuthbert Shang Wui Ng; Wei Yan; Tao Yang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0036
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Guided Wave Propagation in a Double-Pipe System: Theory and Method
Ruijia Wang; Yao Ge; Brenno Cabella; Frederico Heloui de Araujo; Xiang Wu
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0038
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Pushing the Limits of Ultrasonic Cement Evaluation in Very Large and Heavy Wall-Thickness Casings
Alhadi Zahmuwl; Michael Taplin; Ola Balbaa; Mohamed Helmi; Luca Pavesi; Robert Loov
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0090
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Carbonates Evaluation and Special Applied Technologies

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High-Resolution Petrophysics Through the Integration of NMR Logs and Acoustic Image Logs
Lucas Abreu Blanes de Oliveira; Gabriel do Nascimento Freitas; Leonardo Gonçalves; Erica Kato Pacheco Ferraz
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0039
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Evaluation of Resistivity and Saturation of Bitumen-Bearing Fracture-Caved Carbonate Reservoir Based on Digital Core Technology
Zongpeng Lin; Jun Zhao; Zhenguan Wu; Qiang Lai; Shixiang Jiao; Xuan He
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0040
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New Approach to Connect the Sedimentary and Diagenetic Features of Complex Carbonate Reservoir for Better Rock Grouping and Permeability Prediction Through Pore Geometry Structure Rock Typing: A Case Study from Offshore UAE
Didit Putra Kusuma; Umer Farooq; Hiroki Montani; Jiahong Li; Jawaher Alsabeai; Latifa Al Shamsi; Suad Alshamsi; Lu Lu; Nozomu Yoshida; Muhammad Nur Ali Akbar
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0041
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Integrated Approach with Maximum Usage of Surface Logging, XRD/XRF, Coriolis, Advanced Gas and Cavings Check Data in Conjunction with Detailed Geological Analysis to Optimize Wells Drilling in Challenging Middle Marrat and Najmah Reservoirs of North Kuwait
Saad Al-Ajmi; Oswaldo Klinger; Andrey Gryaznov; Ahmad Shoeibi; Majid Moazami; Chinmaya Pattnaik
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0042
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Core and Well-Log Integration

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Integration of Digital Rocks, MICP, Petrography, and Petrophysical Logs to Understand the Rationale Behind a Productive Low-Resistivity-Pay Carbonate Reservoir
Arfan Ali; Mohamed Abdou; Ammar Balilah; Andrei Kazak
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0043
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Advanced Logging Techniques for Characterizing a Complex Turbidite Reservoir in the Norwegian Sea
Wesam Ben Mansour; Harish B. Datir; Andrew Mburu
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0044
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An Integrated Core Reservoir Characterization and PVT for Hybrid Enhanced Oil Recovery in Mature Sandstone Reservoir
Muhammad A. Gibrata
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0045
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Hydrocarbon Saturation Evaluation of Volcanic Reservoirs Using MICP Experiments, Petroleum Migration and Accumulation Dynamics, and NMR Logging
Xinlei Shi; Huanran Li; Jiansheng Zhang; Xin Cheng; Wei Zhang; Qi Li
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0046
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Automated Methods of Formation Evaluation

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Machine Learning-Driven Permeability Prediction & Improved Reservoir Characterization in Heterogeneous Sandstone Formation of KG Basin
Mohammad Anees; B. Amitha; Amit Kumar
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0047
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Automated Depth Alignment of Well Logs Using Siamese Neural Networks
Sushil Acharya; Karl Fabian; Anis Yazidi; Kjetil Westeng
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0048
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Universal Data-Driven Permeability Estimation by Connecting MICP Analytics with Big Data
Oriyomi Raheem; Misael M. Morales; Wardana Saputra; Carlos Torres-Verdín; Craig Phillips; Chicheng Xu
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0049
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A Monitoring and Analysis Platform for Real Time and Autonomous Formation Evaluation and Machine Learning Deployment of Multiple Concurrent Assets
Lautaro Rayo; Laila Alshammasi; Yacine Meridji; Majed Kanfar
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0050
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Revolutionizing Well Integrity: Temporal Deep Learning for Precise and Continuous Axial Groove Detection
Ahmad Ahmad; Ana Escobar; Gurami Keretchashvili
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0051
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SoS: Buried Hill Reservoir Description and Fluid Monitoring Method

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Assessment of Cement Density via Through-Casing X-Ray Logging Technique
Jilin Fan; Qiong Zhang; Wenhui Chen; Aizhong Yue; Shusheng Wang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0052
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A Novel Multi-Physics Interpretation Method for Quantifying Mineral Using a Pulsed Neutron Element Logging Tool
Ya Jin; Quanwen Zhang; Lu Yin; Wenbo Qu; Zhiyuan Liu; Yi Ge; Qiong Zhang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0053
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A Method for Formation Elemental Concentration Determination Based on the Macroscopic Capture Cross-Section Constraint
Guofeng Yang; Wenzheng Peng; Hongfa Ye; Zhengyan Wang; Meng Chen; Xiangjun Liu
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0054
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A Method on the Application of Pulsed Neutron Logging for Gas Reservoirs Identification of the Buried-Hill in Bohai Sea
Zhenyang Li; Qiong Zhang; Jiling Li; Zhang Zhang; Zhenyong Hou; Quanying Zhang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0055
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Understanding the Heterogeneous Fractured Carbonate Reservoir by the Integration of Advanced Logging Techniques and Core Measurements, Case Study from Beibu Gulf Basin China
Chen Ming; Gao Yong De; Qu Chang Wei; Yang Fu Lin; Sun Dian Qiang; Wu Jin Bo; Su Yuan Da; Li Shen Zhuan; Wu Jin Long; Yu Dai Guo
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0056
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Acoustics Technology and Applications

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Multi-Scale Evaluation of Hydraulic Fracturing Effects via Borehole Acoustics
Yujiang Shi; Chunhao Yu; Xuekai Sun; Jingqi Lin; Xianping Liu; Siyi Li; Hao Sun; Ran Zhang; Jilin Fan
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0057
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Direct Inversion of Wellbore Acoustic Waveforms Using Convolutional Neural Networks
Elsa Maalouf; Sam Hamamji
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0058
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Logging While Drilling Versus Wireline Sonic Data: An E&P Operator's Perspective
Frederic Robail; Priveen Raj Santha Moorthy; Aidil Aznan Azwan A. Azid; Hendrik Rohler; Nurul Athirah Wahid Ali; Arthur Goh Jin Wang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0059
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Determine Ultrasonic Logging Tool Trajectory, Casing Geometry and Mud Velocity in Casedhole from Measured Waveforms
Shaopeng Shi; Hua Wang; Shengya Li; Qiang Wang; Wenhe Wu
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0060
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Cased Hole Formation Evaluation

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Evaluating Cement Bond Quality and Casing Integrity in Well P&A Operations: A Case Study from a Depleted Oil Field, Germany
Ajoy Krishna Bora; Sascha Alles
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0061
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Holistic Integration of Multiple Cased Hole Acquisition Techniques for Comprehensive Assessment of Low Salinity EOR Pilot Project in a Middle East Carbonate Reservoir
Alexey Tveritnev; Mohamed Al Hammadi; Naema Abdulrahim Abdulla J. Almansoori; David Chace; Vijay Ramaswamy; Nilisip Akang; Alfir Yakupov; Rafael Akhmetianov
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0062
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Spectroscopy Mineralogy Application in a Mature Gas Field Using a New Slim Pulsed-Neutron Tool
Siti Najmi Farhan Zulkipli; Bancha Srikampha; Hernan Mora; Weijun Guo
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0063
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Data Processing Method of Das Logging
Rui Deng; Lixiong Gan; Yujiang Shi; Haining Zhang; Songtao Bai; Chaowei Duan; Hanbin Zhu; Guoli Li; Wenqiang Liu; Dong Li; Bobo Li
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0064
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Formation Evaluation and New Technologies

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Using LWD Ultrasonic Images for Heterogeneous Carbonate Reservoir Evaluation in the Buzios Field, Santos Basin, Brasil
Willy Bohn; Luma Botelho de Souza; Pamella Paiva Fernandes; Anabela Porto Rosa; Antonio Persio Silvestre; Susana Gutierrez Carrilero; Katia Litiere
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0065
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Validation of the Results of 2D Image Analysis Using Laboratory Measurements of Porosity, Permeability and NMR Measurements
L. A. Hathon; M. T. Myers; D. C. Ekeke; J. J. Funk; G. Unomah; N. Muhammedy; J. Razik
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0066
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Petrophysically Consistent Well-Log Analysis of a Deep-Water Anisotropic Turbidite Formation Using NMR and Tensor-Induction Measurements
Ali Eghbali; Amer Hanif; Alisa Kukharchuk; Radu Coman
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0067
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Water Saturation Prediction in 3D Models: Paradigm Change from Free Water Levels to Interfacial Normalized Free Water Levels
Iulian N. Hulea
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0068
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Cased Hole Formation Evaluation and Surveillance

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A Study on the Coupled Numerical Simulation of the Electric Field and Fluid Field During Supercritical CO2 Oil Displacement Based on Digital Rocks
Haining Zhang; Zhanshan Xiao; Jianbin Zhao; Shitao Cui; Chenjun Zhang; Bo Wei; Huiying Li
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0069
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Behind Casing Fluid Typing Using Ultrasonic Logs for Plug and Abandonment Application
Alhadi Zahmuwl; Charles Desmazures; Robert Loov
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0070
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20 Years of Formation Pressure While Drilling (FPWD) - What Have We Discovered?
Alex Dykes; Scott Paul; Aldrick Garcia Mayans; Yon Blanco; Marcus Turner; Sammy Molua Lyonga; Aydar Galiev; Laura Jimenez Cabas; Shahid Haq; Zhang Lei
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0071
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Geo-Stopping at the Top of Carbonate by Reducing the Depth Uncertainty Using Seismic While Drilling, Near-Bit GR, and Resistivity Real-Time Data, a Novel Carbonate Reservoir Entry Strategy in Deep Water Malaysia
Saikat Das; Martin Cox; Patricia N. Tynan; Helen Saaler; Raja Ridhuan B. Khalid; Aiman Hakimi Wong Abdullah
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0072
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NMR Technology and Applications - High or Low Fields, Pores and Fluids (II)

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Automated T1T2 NMR Log Interpretation: From a Single Well to Standardized Multi-Well Analysis
Yevgeny Karpekin; George Bordakov; Laurent Mosse; Ulises Bustos; Violeta Lujan; Akinlolu Williams; Andrew Johnson
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0073
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Enhanced Characterization of Pore Size Distribution from NMR T2 by Integrating Pore Shape Aspect Ratio and Sonic Measurements
Juntao Ma; Lin Liang; Mohammed Al-Hamad; Marie Van Steene; Olivier Sindt; Shouxiang Mark Ma
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0074
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Addressing Logging Speed Influence on LWD NMR Response: Advanced Correction Methods for Precise Porosity Evaluation
Valerio Dutra; Marcio Coutinho; Zeyad Ramadan; Egor Kovarskiy; Shashikant Srivastava; Navneet Latawa; Zoryana Snovida; Marie Van Steene; Vikas Jain
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0075
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Temperature Influence on NMR Relaxation Characteristics of Organic and Inorganic Pores in Shale
Ruiqi Fan; Guangzhi Liao; Lizhi Xiao; Sihui Luo
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0076
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Uncertainty, Sensitivity, Scenario Analysis, and Case Studies

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Modeling Oil Saturation Below a Present-Day Free Water Level and its Impact on Reserves Uncertainty: An Integrated Approach Using Logs, PGS Rock Typing, SCAL Modeling and Saturation Depth Function
Muhammad Nur Ali Akbar; Matthew Guy Reppert; Ardian Pradhana Putra
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0077
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Dynamic Depth Alignment Between Well Logs for Enhanced Petrophysical and Rock Physics Interpretation
Kjetil Westeng; Peder Aursand; Frida Viset; Yann Van Crombrugge
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0078
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Geostopping with Ultradeep Electromagnetic Look-Ahead Technology to Mitigate Drilling Risks in Brazilian Presalt Carbonate Reservoir
Guillermo Marcelo Cuadros; Ligia Naia de Matos; Egor Kovarskiy; Antonio Mainieri Vieira da Cunha; Valerio Picorelli Ladeira Dutra
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0079
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Mineralogy Characterization for Exploratory Eastern Offshore Field in India-Busting XRF and Cutting Lithology Myths - An Eye Opener for the Industry
Shruti Joshi; Anjana D Panchakarla; Nora Alarcon
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0080
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Poster session 2

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Horizontal Well Array Induction Logging Data Processing and Interpretation Based on Parameterized Modelling and Inversion
Jun Zhou; Meixiang Gao; Yan Bai; Zhu Ding; Peisheng Wang; Zonghui Gao; Xiaolei Chen; Dou Tian; Jiaqi Xiao
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0037
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Automatic Source Rock Evaluation from Well Logs for Play Analysis
Kjetil Westeng; Neal Morgan; Michael Lawson; Yann Van Crombrugge; Christian Nilsen Lehre; Christoph Kierdorf; Erik Marten Blixt
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0081
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Experimental Measurement and Logging Calculation Method of Fracture Width Based on a Large-Scale Granite Physical Model
Xiongyan Li; Ruibao Qin; Yuetian Wang; Jingji Cao; Peng Wang; Zhongxu Yin; Xinyu Ye
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0082
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Distinguishing CO2 and Hydrocarbon Gas Using Pulsed Neutron Logs for CO2 Storage Projects in Depleted Gas Reservoirs
Yonghwee Kim; Eng Chuan Lim; David Chace
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0083
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Leveraging Thermal Conductivity Gas Detector for Quantitative Assessment of Fluid Contacts and Transition Zones
Khalid Qubaisi; Amjad Kharabah; Caroline Magnier; Dina Gafurova
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0084
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Time to Revisit Deep Dielectric Measurements? - Interesting Insights from Middle East Carbonate Reservoirs
Raghu Ramamoorthy; Martin G. Lüling; Amr Mohammed Serry; Barbara I. Anderson; James Hemingway
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0085
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Identifying the Presence of Water Finger and Assessing Influence of WBM Filtrate Invasion in a Fractured Zone of Brazilian Pre-Salt Carbonates
Filipe Ramos de Albuquerque; Eduardo Barreto Oliveira; Thiago Moura da Silva Rosado; Pamella Paiva Fernandes; Jorge Freitas Maciel Garcia de Carvalho; Gabriel Luiz Pérez-Vieira; Joäo Paulo Teixeira da Fonseca; Rodrigo Skinner
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0086
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Investigating the Impact of Cyclical Hydrogen Injection and Extraction on Subsurface Reservoir Formation Rocks for Underground Hydrogen Storage
Shruti Joshi; Anjana D. Panchakarla; Krishna Raghav Chaturvedi
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0087
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Formation Waves Decoupling Network: Enhancing Cementing Quality Evaluation in Fast Formations
Menglu Kang; Lizhi Xiao; Jun Zhou; Juan Zhang; Guangzhi Liao; Martin J. Blunt; Branko Bijeljic; Jun Zhou; Juan Zhang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0088
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A Novel Type Curve for Sandstone Rock Typing Using a Pore Geometry-Structure Approach
Junita Trivianty Musu; Muhammad Nur Ali Akbar; Pudji Permadi; Bambang Widarsono
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0089
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Impact of Formation Thermophysical Properties on Geothermal Energy Potential Assessment
Guodong Jin; Hyung T. Kwak; Hussam H. Banaja; Walid K. Hussein
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0091
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Machine-Learning Solutions for Mitigating Drilling Environment Impacts on NMR Logs in Brazilian Pre-Salt Carbonates
Larissa Furtado Torres; Marcio Roque Coutinho; Marcelo Abbehusen Magalhães; Marcus Santini Tavares; Carlos Eduardo Roriz; Emerson dos Santos; Marcelo Cordeiro; Rodrigo de Souza; Fares Pessoa; Bruna da Silva
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0092
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Digital Rock Physics for Formation Evaluation and Core Analysis

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3D Digital Rock Imaging Enhances Mercury Injection Capillary Pressure Analysis
Andrei Kazak; Ivan Deshenenkov; Yildiray Cinar; Bruno Stenger
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0093
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Conditional Diffusion Models with Integrated Porosity Fusion for 3D Digital Rock Reconstruction
Hao Lu; Guangzhi Liao; Lizhi Xiao; Jun Zhou; Juan Zhang; Luqiao Ni
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0094
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Machine Learning Method Enables Fast and Accurate Pore Pressure Prediction with Well Logs, a Case Study in Offshore, China
Yongde Gao; Peng Liu; Dianqiang Sun; Ming Chen
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0095
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Multi-Scale and Multi-Component Integration Modeling of Digital Rock Based on Deep Learning
Yuetian Wang; Ruibao Qin; Dan Wei; Xiongyan Li; Jingji Cao; Peng Wang; Xinyu Ye; Zhongxu Yin
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0096
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Specialized Measurement Technologies and Interpretation Methods (I)

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Magnetic-Electric Dual-Drive Time-Domain Electromagnetic Wave Look-Ahead Focusing for Remote Detection Method Research
Zhanshan Xiao; Yujiang Shi; Haitao Hu; Chao Qi; Haining Zhang; Wenhui Chen; Bing Wei; Kun Shao; Chunming Yao
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0097
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Technology for Monitoring the Wear and Defect of Casing and Tubing for Multistring Wells by the Method of Transient Processes
Mingjun Xie; Gulnara Golovatskaia; Aleksandr Potapov; Dmitri Perelygin; Aleksandr Shumilov
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0098
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Fluid Production Profiling in Deep-Water Carbonates: Intrawell Chemical Tracers Application in Long Horizontal Drains
Marco Pirrone; Giuseppe Galli; Sara Moriggi
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0099
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Beyond Gas Bubbles in Norwegian Oil Fields: An Integrated Technique to Understand Reservoir Fluid Distribution
Maria Cecilia Bravo; Silvia Roblero Nunez; Sandrine Donnadieu; Frode Ungar; Gulnar Yerkinkyzy; Tao Yang; Paal Fristad
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0100
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SoS: Ultra Deep Measurement Technology

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Fast Multi-Level and Multi-Grid Stochastic Inversion of UDAR Measurements
Nazanin Jahani; Kristian Fossum; Wardana Saputra; Carlos Torres-Verdín; Egil Romsås Fjeldberg
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0101
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Recent Developments and Verifications for the Multi-Dimensional and Data-Adaptive Interpretation of Borehole UDAR Measurements
Wardana Saputra; Carlos Torres-Verdín; Joaquin Ambia; Bruce G. Klappauf; Weichen Zhan; Nazanin Jahani; Jörn Zimmerling; Vladimir Druskin; Sofia Davydycheva; Ivan Davydychev; Egil Romsås Fjeldberg
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0102
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Precision Beyond Limits: Breaking New Ground in Complex Structures with Ultradeep Resistivity Geo-Mapping for Accurate Geosteering
Ida Bagus Gede Hermawan Manuaba; Abdullah Alshehri; Hesham Elmasry; Eduard Bikchandaev
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0103
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A Robust Joint Inversion for Improved Structural Mapping in UDAR Applications Using Multiple Measurement Sensitivities and Uncertainties
Hsu-Hsiang (Mark) Wu; Dagang Wu; Ting Yan; Jin Ma; Yijing Fan; Clint Lozinsky; Michael Bittar
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0104
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Vendor-Independent Adaptive Model-Based Inversion of LWD Azimuthal Resistivity Data
Mikhail Sviridov; Anton Mosin
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0105
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Imaging Technology, Interpretation and New Applications

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Borehole Image Compression and Enhancement for Real-Time Logging While Drilling
Suraj Kiran Raman; Chandramani Srivastava; Andriy Gelman; Nadege Bize Forest; Ulysse Legendre; Muhannad Abuhaikal
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0106
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High Resolution Geosteering Interpretation of LWD Azimuthal Electromagnetic Data
Xizhou Yue; Guoyu Li; Mingxue Ma; Shanjun Li; John Zhou
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0107
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A New Approach Integrating Geomechanical Analysis and Numerical Simulation to Conduct Fracture Characterization and Prediction in Buried Hills of the Eastern South China Sea
Lu Yin; Xu Jiafang; Ming Chen; Shiyue Wang; Qingjie Du; Quan Zhou; Xiao Qi; Guangdong Zhang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0108
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Integrating Machine Learning and Data Augmentation for Automated Texture Classification in Borehole Image Logs
André M. Souza; Matheus A. Cruz; Paola M. C. Braga; Rodrigo B. Piva; Rodrigo A. C. Dias; Paulo R. Siqueira; Willian A. Trevizan; Candida M. de Jesus; Camilla Bazzarella; Rodrigo S. Monteiro; Flavia C. Bernardini; Leandro A. F. Fernandes; Elaine P. M. de Sousa; Mirela T. Cazzolato; Daniel C. M. de Oliveira; Marcos Bedo
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0109
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An Unsupervised Collar Wave Suppression Method with Acoustic Physics Constraint in ALWD
Qiang Wang; Hua Wang; Yunjia Ji; Zhilong Fang; Gengxiao Yang; Jun Wang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0110
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Specialized Measurement Technologies and Interpretation Methods (II)

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Geosteering Based on Formation Dielectric Properties Derived from LWD Measurements
Jun Zhang; Shouxiang Mark Ma; Salah Al-Ofi
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0111
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Automated Anomaly Detection of Multi-Metallic Tubulars in Well Integrity Logs Using Signal Mode Decomposition and Physics-Informed Decision Making
Ze Wang; Lijian Jiang; Moustafa Ismail; Karim Khalil
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0112
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Characterizing the Response of a New LWD Micro-Electrical Imager for Oil Based Mud and Large Boreholes in Terms of Formation Wave Impedance and Mud Properties
Roland Chemali; Jennifer Market; Lars Øy; Magne Lauritzen; Inge Bye; Heidi Rydningen; Thomas Mikuz; Carina Høie Østebø
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0113
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High Resolution LWD Oil Based Mud Imaging via Impulse Radar - Hydrocarbon Case Studies
Jennifer Market; Lars Øy; Roland Chemali; Benjamin Barrouillet; Heidi Rydningen; Ian Walker; Thomas Mikuz; Andrew Jones; Carina Høie Østebø; Kjell Harald Dalehaug
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0114
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Case Studies

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Optimizing Wellbore Placement with Near Bit Ultra-Deep Azimuthal Resistivity
Alessandra Silva; Nigel Clegg; Karol Riofrio; Carlos Sarquez; Ville August Aarseth; Ole Martin Teien; Amitabha Chatterjee; Gustav Kvaal Legouy
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0115
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Implementation of High-Definition Reservoir Mapping-While-Drilling to Enhance Horizontal Well Placement and Reservoir Characterization in Low-Resistivity, Heterogeneous Reservoir: A Case Study from Peru
Federico Seminario; Jorge Sarmiento; Edwar Bustamante; Edson Castillo; Tito Orrego; Egor Kovarskiy; Guillermo Cuadros; Igor Martinez; Victor Laguna
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0116
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Asphaltene Clustering in a Black Oil Column Driven by Gas Addition, Explained via History Matching of Reservoir Charge
Tarek S. Mohamed; Morten Kristensen; I. Yucel Akkutlu; Carlos Torres-Verdín; Oliver C. Mullins
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0117
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Implementation of Waterflood in a Mature Oil Field - How Surveillance Supports Success
Evert-Jan Borkent; Marwa Mufarji; Isehaq Busaidi; Ahmed Al Ajmi; Ibrahim Al Kaabi; Maan Al Asfoor; Mahmood Al Harthi
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0118
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Formation Evaluation, Digital Rock, and Core-Log Integration

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Fracture Detection and Segmentation from Electrical Image Logs Using YOLOv7-U-Net
Jianing Li; Lizhi Xiao; Guangzhi Liao; Jiaxiu Liu; Xiaoyu Wang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0119
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Advanced Segmentation and Geometric Analysis of Geological Samples
Raounek Zeghdoud; Bruno Figliuzzi; Aymeric-Pierre Peyret
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0120
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Molecular Simulation of Methane Adsorption Using Deep Potential Model
Yuhao Guo; Liqiang Sima; Liang Wang
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0121
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Digital Special Core Analysis for Tight Sandstone Reservoirs: A Case Study of the Masirah Bay Reservoir, Mukhaizna Field
A. S. Al Salmani; A. A. Al Kalbani
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0122
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Formation Evaluation of Unconventional Reservoirs (II)

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Impacts of CO2 Adsorption on the Elastic Properties of Kerogen in Organic-Rich Mudrocks
Jamil El Masry; Ibrahim Gomaa; Zoya Heidari; Elsa Maalouf
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0127
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Estimation of In-Situ Mineral and Fluid Composition of Rocks from the Joint Inversion of Triple-Combo Well Logs in the Presence of Invasion
Joaquín Ambía; Adeyemi Adetosoye; Carlos Torres-Verdín
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0128
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Investigation of Wettability of Organic-Rich Mudrocks via Fourier-Transform Infrared Spectroscopy
Isa Silveira de Araujo; Yufeng Su; Mariella Khoury; Tanya Hutter; Zoya Heidari
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0129
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Oil-Water Detection and Simulation Using Ultralow-Field Nuclear Magnetic Resonance Based on Atomic Magnetometer
Qiao Zhen; Xiao Lizhi; Liao Guangzhi; Luo Sihui
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0130
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Integrated Formation Evaluation

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Effect of CO2 Sequestration on Carbonate Formation Integrity
Mohammed Al-Hamad; Olivier Sindt; Shouxiang Mark Ma; Wael Abdallah
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0131
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An Automatic Method to Extract Slowness in Acoustic Logging and its Applications
Siyi Li; Wenhui Chen; Xuekai Sun; Liming Jiang; Hao Sun; Xianping Liu; Jilin Fan
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0132
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Cost-Effective Geochemical Strategies for Optimizing Formation Evaluation and Property Prediction in Conventional and Unconventional Plays
Humberto Carvajal Ortiz; Agustin Kriscautzky
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0133
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Saturation Height Models on Brazilian Pre-Salt Complex Carbonate Reservoir Rocks, from Pore to Field Scale Calculations
André Luís Fernandes da Silva de Souza; Leonardo Gonçalves
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0134
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Formation Evaluation of Conventional Reservoirs

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Fractional Flow Modeling and Monitoring for the Assessment of Commingled Fluid Production Across Thinly Laminated Formations
Daria Olszowska; Carlos Torres-Verdín; Khalid El Jaafari Salmi; Jansen Oliveira
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0135
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Advanced Reservoir Characterization Using Drill Cuttings-Based Advanced Image Analysis, Elemental Analysis and AI Algorithms: A Case Study of the Orgánico Inferior and Cocina Members, Vaca Muerta Formation, Neuquén Basin, Argentina
Agustín Kriscautzky; Guy M. Oliver; Cesar E. Lugo; Denis Marchal; Claudio Naides
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0136
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An Improved Non-Archie Fluid Saturation Workflow in Organic Shales
Pingjun Guo; Brett Zastoupil; Quentin German
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0137
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Authentic Approaches to Petrophysical Rock Type Determination of Heterogeneous Globigerina Limestone in Northeast Java Basin
Erick Prim Putra; Rafi Fakhri; Indra Sumantri
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0138
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Cased Hole Surveillance

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Enhanced Integrated Cement Bond Analysis Through the Use of Flexural and Shear Attenuation Measurements
Maniesh Singh; Deepak Voleti; Rehan Hanif; Doug Patterson; Pawel Matuszyk; Ian Leslie; Joseph Olaiya; Mostafa Ismail
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0139
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Real-Time Monitoring of Carbon Dioxide Injection Through Fiber Optics: Physics-Based Modeling of Distributed Temperature Sensing Data for Time-Lapse Fluid Typing, Pressure Inference, and Phase Transition Assessment
Marco Pirrone; Tommaso Mantegazza
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0140
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Microannulus Identification and Quantitative Evaluation in Cased Wells
Xuelian Chen; Jinlin Pan; Feng Cheng; Xiaoming Tang; Lei Zhu
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0141
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Evaluating Waterflood Effectiveness and Hydrocarbon Recovery Using Constraint Inversion of Resistivity Sigma and Core Data
Harish B. Datir; Laurent Mosse; Sudipto Datta; Amit Singh; David John Jackson
Paper presented at the SPWLA 66th Annual Logging Symposium, Dubai, UAE, May 2025. doi: https://doi.org/10.30632/SPWLA-2025-0142
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