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    Competency Management system SLB NEXT

    Fluvial and Shallow Marine Reservoirs

    The course is designed for geoscientists and reservoir engineers who primarily focus on ‘shallow marine’ successions. Whether your task involves a simple well-correlation across tidal systems, or the input of fluvial channel dimensions into a geomodel this course will benefit you in several ways.

    This course systematically introduces participants in a landwards to basinwards transect through all environments of deposition where reservoir quality sands are deposited. For each environment of deposition they are shown modern examples, outcrop analogs, core photos, well-log signatures and seismic expression.

    Besides presenting standard facies models, quantitative modelling equations are presented in exercises. By the end of the course participants will be able to predict reservoir geometries, dimensions, and Net to Gross ratios of fluvial and paralic sedimentary systems. Details of deltaic reservoir properties, their motifs on wireline logs, and seismic facies are covered in this course.

    Day 1

    Introduction

    • Introduction to the course and sedimentary structures in fluvial to shallow marine successions.
    • Sequence stratigraphy of shallow marine siliciclastic systems. Exercise on description and interpretation of core facies.
    • Fluvial systems: classification of rivers, architectural elements, prolific global fluvial reservoirs, exercise on calculating channel dimensions and geometry using core or borehole image log data.
    Day 2

     Deltaic Systems

    • Classification of deltaic lobes based on processes and grain size
    • Environments of deposition and potential source and reservoirs rocks in a deltaic succession

    Exercise on the seismic facies of deltas

    Day 3

    Incised Valleys and Tidal Settings

    • Estuaries and incised valleys
    • Tidal creeks, channels and inlets

    Tidal flats, Tidal bars and Sand-waves          

    Day 4

     Wave-dominated linear coastlines

    • Transect through a wave dominated clastic shelf: offshore, transition, shoreface, foreshore and backshore environments of deposition
    • Strandplains, barrier islands and spit bars
    • Exercise on log correlation
    Day 5

    Log interpretation of clastic depositional environments

    • Using log motifs and scale to deduct facies associations
    • Creating facies logs
    • Integrating logs with core data

    Geoscientists, petrophysicists and engineers working on fluvial and marginal marine reservoirs

    1. Describe and interpret sedimentary structures in core and borehole image logs
    2. Identify common trace fossils and understand the value of the ichnofacies concept
    3. Predict reservoir distribution along depositional strike and dip
    4. Apply sequence stratigraphic concepts to correlation
    5. Gain an in-depth knowledge of common siliciclastic depositional environments

    Basic understanding of Geology. College-level courses in Stratigraphy and Sedimentology

    Currently there are no scheduled classes for this course.

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