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    Land Seismic Acquisition Techniques and Survey Design | RILS

    This is a Remote Instructor LedSeries (RILS) training. The remote classroom delivery is a modality thattakes advantage of the instructor led training content, while allowing thesame content to be delivered remotely.

    All training sessions will bedelivered online with no face-to-face classroom attendance. This class will bedelivered in  4 hours daily teaching sessions over 5 days

    The course is designed to familiarize the student with the basics of 3D Land seismic acquisition before moving on to cover the more recent developments: high channel-count single sensor (point receiver) simultaneous source – high productivity vibroseis, broadband techniques (boosting the low and high freqencies) and wireless nodal systems. Learning is supported through numerous case histories that illustrate the value of each acquisition technique. Central to the success of these techniques is how the surveys are designed to deliver fit-for-purpose data in a cost-effective manner.

    In the second half of the course the students are taken through the principles of survey design. Learning is supported via hands-on practice where participants work together to design solutions to typical survey objectives and challenges.

    At the end of the course, students will be familiar with: all current and emerging land seismic acquisition technology and techniques; the principles and workflows employed to design land seismic surveys; how to make a “first-pass” assessment of whether a proposed survey design will be successful and economic; and how and what to recommend as further areas of investigation if required.

    Course agenda

    Day 1 - Land seismic acquisition technology

    • Overview of course content & learning objectives
    • Introduction: operations & 3D acquisition geometries
    • Hi-channel count single sensor acquisition
    • Exercise for day 1


    Learning objectives: Understand the basics of land acquisition:operations in a variety of different terrains and environments. Understand thetypical 3D land acquisition geometries, the motivations behind them, theirlimitations and how they can be expressed with different attributes andmetrics. Understand the concept of single sensor and single source acquisitionvs arrays, and the consequences for data processing. Understand the characteristicsof ambient and coherent noise, the importance of coherent noise sampling andhow it can be filtered.


    Day 2 - Land seismic acquisition technology

    • Hi-productivity simultaneous source vibroseis
    • Broadband
    • Wireless nodal systems
    • Exercise for day 2


    Learning objectives: Understand the costbenefit of simultaneous source acquisition, the different methodologies, howand when they can be used to deliver improved data quality and/or moreefficient operations, and the implications for data processing. Understand howbroadband data improves resolution. Understand the importance of lowfrequencies and how they can be obtained in the field. Get an overview ofwireless nodal systems and their impact on acquisition operations. Understandhow to analyze operational efficiency and its parameters.


    Day 3 - Survey design basics

    • Survey design basics
    • Modeling, using a 1D earth model to determine resolution, offset/angle limits, muting, bin size, fold and migration aperture
    • Exercise for day 3


    Learning objectives: Understand the basicobjectives and methods of land survey design. Understand how to use existingdata and what constitutes a viable earth model for 1D seismic modeling.Understand the different types of resolution in seismic data required forsuccessful interpretation and reservoir characterization. Understand how todetermine basic acquisition parameters using a few simple equations startingfrom a 1D earth model.


    Day 4 - Survey design- designing a 3D geometry

    • Designing a 3D geometry
    • Survey design impact for imaging
    • Case study examples: Brunei, UAE
    • Exercise for day 4


    Learning objectives: Understand how totranslate basic survey design parameters and objectives into a 3D acquisitiongeometry and how to choose between the different geometry options.  Understand the relationship betweenacquisition geometry and modern time and depth imaging workflows.


    Day 5 - Survey design- new processing technology & inversion

    • New processing technology: noise attenuation, demultiple, surface wave inversion, irregular geometries, interpolation, compressive sensing
    • Survey design impact for inversion (AVO, pre-stack, AVOAz)
    • Case study examples: China


    • Review of course objectives and feedback


    Learning objectives: Understand therequirements for critical processing steps like noise attenuation, demultiplexand surface wave inversion. Understand how new interpolation technology canimpact survey design and how new processing technology enables non-uniformsurvey layout. Understand the requirements that AVO, pre-stack inversion andAVOAz (fractures & stress) place on survey design.

    Geophysicists with limited experience of seismic acquisition, or more experienced staff including Interpreters and Operational Geophysicists who need to keep up with the rapidly developing field of modern seismic acquisition techniques.

    • Overview of course content & learning objectives
    • Introduction: operations and 3D acquisition geometries
    • Hi-channel count single sensor (point receiver)
    • Simultaneous source, high-productivity vibroseis
    • Broadband
    • Wireless nodal systems
    • Survey design basics
    • Modeling, using a 1D earth model, to determine offset/angle limits, muting, bin size, fold and migration aperture
    • Designing a 3D geometry
    • Survey design impact on imaging
    • New processing technology: noise attenuation, demultiple, interpolation, irregular geometries
    • Survey design impact on inversion (AVO, pre-stack, AVOAz)

    Currently there are no scheduled classes for this course.

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