Seismic characterization of subsurface fractures using advanced imaging techniques

Thesis Abstract

Abstract
The accurate characterization of subsurface fractures is crucial for various geophysical applications, including hydrocarbon exploration, geothermal energy development, and underground storage operations. This thesis focuses on the seismic characterization of subsurface fractures using advanced imaging techniques. The study aims to enhance the understanding of fracture networks within the subsurface through the integration of seismic data acquisition, processing, and interpretation methodologies. The research begins with an introduction that provides an overview of the motivation for the study, highlighting the importance of fracture characterization in geophysics. The background of the study delves into the existing literature on subsurface fractures and the challenges associated with their characterization using traditional seismic methods. The problem statement identifies the gaps in current approaches and emphasizes the need for advanced imaging techniques to improve fracture characterization accuracy. The objectives of the study are outlined to guide the research process towards achieving specific goals, such as developing innovative seismic imaging algorithms for fracture detection and characterization. The limitations of the study are also acknowledged to provide a clear understanding of the potential constraints that may impact the research outcomes. The scope of the study defines the boundaries within which the research will be conducted, focusing on specific geological settings and seismic survey parameters. The significance of the study is highlighted, emphasizing the potential impact of improved fracture characterization on various geophysical applications. The structure of the thesis is outlined to provide a roadmap for the reader, detailing the organization of chapters and the flow of information throughout the document. Definitions of key terms are provided to ensure clarity and understanding of the terminology used in the study. The literature review chapter critically examines existing research on subsurface fractures and advanced seismic imaging techniques. Ten key themes are identified, ranging from fracture detection methods to seismic attribute analysis approaches. The chapter synthesizes the findings from previous studies and highlights gaps in current knowledge that the present research aims to address. The research methodology chapter details the approach taken to collect, process, and analyze seismic data for fracture characterization. Eight key components are described, including seismic data acquisition, pre-processing steps, attribute analysis techniques, and fracture identification algorithms. The chapter outlines the workflow followed to achieve the research objectives and provides rationale for methodological choices. The discussion of findings chapter presents the results of the seismic characterization process, focusing on the detection and interpretation of subsurface fractures using advanced imaging techniques. The chapter explores the implications of the findings for geophysical applications and discusses the challenges and limitations encountered during the research process. In conclusion, this thesis provides a comprehensive investigation into the seismic characterization of subsurface fractures using advanced imaging techniques. The research contributes to the advancement of geophysical methods for fracture detection and interpretation, with implications for improved reservoir characterization, geothermal resource assessment, and underground storage operations. The summary highlights the key findings and implications of the study, emphasizing the significance of accurate fracture characterization in enhancing geological understanding and resource exploration efforts.