Rahman Ashena – författare

Well Cement Integrity offers a comprehensive examination of the critical factors influencing the long-term safety and reliability of wellbore barriers. The book synthesizes recent advances in evaluation techniques, including experimental laboratory testing, field diagnostics, and innovative data-driven methods such as AI and machine learning. It addresses the unique challenges faced in high-pressure, high-temperature, geothermal, and CCUS environments, providing practical guidance for assessing and maintaining cement integrity throughout the entire well lifecycle. The content emphasizes a holistic approach, integrating laboratory assessments, logging tools, pressure testing, and long-term monitoring strategies to enable practitioners to make informed decisions and implement effective remediation measures.The book's structure includes detailed chapters on topics such as cement bond logs, sustained casing pressure, cement plugs, and plug-and-abandonment procedures. It explores the fundamentals of experimental evaluation, discusses the causes and prevention of casing failures, and presents case studies illustrating real-world applications. Additional chapters focus on the evaluation of cement integrity in specialized scenarios like CCUS and geothermal wells, as well as cutting-edge techniques involving AI and machine learning to predict and analyze well performance. Practical procedures and industry standards are incorporated to support effective decision-making and operational excellence.Summarizes a range of evaluation methods for well cement integrity throughout the lifecycleAddresses challenges specific to geothermal, CCUS, and high-pressure, high-temperature wellsIncorporates laboratory tests, field diagnostics, and data-driven techniques, including AI/MLOffers practical guidelines and case studies to support implementationSupports sustainable energy projects by promoting effective well integrity management

The Practical Handbook of Well Control teaches readers to safeguard well safety and integrity in drilling well engineering. Offering an applied and scientific point of view, it covers fundamental aspects of well control and includes practical procedures and well control methods for land and offshore operations. It features a wealth of questions to commonly encountered problems and comprehensive answers at the end of each topical discussion to test reader comprehension.Written in a concise, accessible way by experienced oilfield and academic expertsCovers all related technical subjects of well controlDescribes modern aspects of well control, including automatic well control, advances in outflow measurement, artificial intelligence and IoT techniques for early kick detection, mud gas separators, and riser gas modelingIncludes case studies to familiarize readers with real-world problems and solutionsOffers a full explanation of each problem to familiarize readers with commonly faced issuesFeatures sample exercises with comprehensive answers useful for IWCF and IADC examsThis handbook serves as a valuable reference and workbook for field drilling and workover engineers in the energy sector.

This book is a practical guide to downhole rock sampling and coring concepts, methods, systems, and procedures for practitioners and researchers. Its chapters are based upon years of extensive studies and research about the coring methods and via direct and continuous communication and consultation obtained from various service and operator companies such as Baker Hughes GE, NOV, OMV, and Sandvik.The contributors discuss the state-of-the-art coring methods and systems (mainly used in the petroleum industry), which include: ·         conventional coring;·         wireline continuous coring;·         invasion mitigation coring (low invasion, gel coring, sponge coring);·         jam-detection, anti-jamming, full closure;·         safe-coring and tripping;·         oriented-coring;·         pressure/in-situ coring;·         logging-while-coring;·         motor coring;·         mini-coring;·         coiled Tubing Coring; and·         underbalanced coring. The contributors provide practical and applicable understanding of the procedures of these coring methods and systems, as well as the specific core barrel components, working mechanisms, and schematics of the tools and processes used.   Because Coring Methods and Systems analyses and compares the core barrels used in both petroleum and mining industries, it enhances the communication and may allow knowledge transfer between the two industries.  As core damage is a serious issue during coring and handling jeopardizing correct calibration of exploration data, Coring Methods and Systems has greatly focused on its identification and its mitigation. Therefore, it can be used as an ideal source for geologists, core analysts, and reservoir engineers, to ensure the retrieval of high-quality cores.

This book focuses on cement bond logs (CBL) as a critical tool for ensuring long-term well integrity. It covers key topics such as acoustic fundamentals, factors influencing cement bond and variable density log (CBL/VDL) readings, cement bond logs evaluation, and methods to address the microannulus effect, which can lead to misleading log results. It also includes a discussion of waveforms, particularly in relation to VDL readings. The book explores how both conventional sonic and new ultrasonic technologies capture and interpret waveforms to assess variations in cement bond integrity. Practical case studies are provided to demonstrate how sonic and ultrasonic CBL interpretation can improve decision-making in assessing well integrity. Additional guidance is provided on evaluating log quality, supervising and witnessing logging operations, and comparing different logging tools.Cement Bond Logs: Guidelines and Interpretation serves as an essential resource for engineers and researchers seeking to improve wellbore integrity through practical and accurate cement evaluation.