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Introduction to Seismic Acquisition and Processing (GPH07)

    Description

    The acquisition and processing of seismic data is indispensable for any successful exploration and production project. It is essential to know what additional information a newly acquired or re-processed vintage seismic dataset can deliver to the interpreter or reservoir engineer. Nevertheless, many users of seismic data are unfamiliar with seismic design principles and data processing and developments in recent years have led to confusing complex terminology.
    This course is intended to give you a sound understanding of the essentials of seismic acquisition and processing and shows how this understanding can help you in your day-to-day work.

    Course Level: Foundation / Skill
    Instructor: Christian Stotter

    Designed for you, if you are...

    • An operations geophysicist or manager involved in seismic acquisition and processing projects. The acquired knowledge will be useful in the tender process and operational phase of seismic acquisition projects and subsequent processing.
    • A geologist, geophysicist or petroleum engineer, who uses seismic data in daily work and who wants to know about the potential and limitations of seismic data depending on the used acquisition parameters and processing workflows.

    How we build your confidence

    • Attendees will get hands on experience in land and marine survey design using real and synthetic examples
    • The effects of changing key survey parameters will be shown on real data and case studies
    • Basic processing concepts will be derived intuitively from signal processing and wave propagation principles
    • Attendees will get hands on experience in seismic data processing on real data examples
    • Benefits and pitfalls of modern imaging algorithms will be shown on case studies from different geologic environments
    • In a seismic tender exercise participants will define acquisition and processing parameters based on principles they have learned during the course

    The benefits from attending

    At the end of the course you will have a good understanding of the possibilities but also pitfalls and limitations of seismic data acquisition and processing projects. With that foundation you will feel confident to:

    • Design basic survey parameters for seismic acquisition
    • Judge the relative importance of seismic acquisition parameters for specific geologic targets
    • Distinguish between different seismic acquisition proposals based on provided survey parameters
    • Perform basic QC and parameter evaluation for seismic processing projects
    • Define a processing sequence for seismic data processing tenders
    • Better interact with experts in the fields of seismic acquisition and processing
    • Assure optimal use of financial resources

    Topics

    • Overview and introduction
    • Elementary theoretical concepts
    • Target oriented seismic survey design - 2D and 3D surveys
    • Source and receiver parameters and configurations
    • Wide azimuth and simultaneous source acquisition
    • Seismic acquisition timeline - from design to operations
    • Signal processing fundamentals
    • Pre-processing
      - Seismic-navigation merge
      - De-signature, zero phasing
      - Noise removal - swell and de-spike
      - Gain recovery
      - Deconvolution
      - Multiple removal - SRME
      - Data regularisation
      - Velocity analysis, NMO and stack
    • Pre-stack time migration
    • Post-processing
    • Depth imaging and tomography
    • Novel acquisition and processing methods
      - Broadband processing - deghosting
      - Wide azimuth - COV processing
      - Three components - Aspects of ocean bottom processing
      - Simultaneous sources
      - Introduction to time-lapse processing


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