Petroleum Training Centre

Sandstone Reservoirs (5 days)Who should attend:Geologists, geophysicists, petrophysicists, reservoir and production engineers, exploration & production managers, all team members involved in reservoir characterization, technicians working with clastic reservoirs.

Objectives:• Interpret clastic depositional environments using data from cores,

cuttings and wireline logs (including FMI)

• Prepare quantitative facies maps

• Apply sequence stratigraphic concepts to clastic reservoirs

• Predict reservoir size, shape, trend and quality

Contents:Wireline log.

• Date: 15-19 January 2018

Core analysis.

Course materials:Each participant will receive a paper copy of our course text and certificate of attendance.

• Genetic stratigraphic analysis

• Depositional architecture

• Basins and units

• Quantitative facies mapping

• Wireline logs and conventional cores

• Seismic and sequence stratigraphy

• Recognition of depositional systems

• Process-response facies models

• Integrated genetic stratigraphy

• Analysis of clastic depositional systems

• Alluvial fan

• Fluvial

• Eolian

• Lacustrine

• Deltaic

• Shoreline

• Shelf

• Slope and basin

• Incised sequences

• Shelf margins and linked downslope systems

• Characteristic log patterns

• Flow units

• Prediction of reservoir size, shape, trend, quality

• How to select optimum well locations

• Lateral continuity and quality of seals

• Diagenesis

• Sedimentary controls on porosity, permeability, saturation

• Reservoir exploration and production case histories

Porosity fracture.

GeoTraining

Robertson

CGG Worldwide Headquarters - Tour Maine-Montparnasse - 33, avenue du Maine - B.P. 191 - 75755 Paris Cedex 15, FRANCE +33 1 64 47 45 00

PTC.

269.

01

Petroleum Training Centre

Expertise in geological project scoping and extensive practical experience in petrographical and reservoir quality analysis.

Your instructorGreg Samways has been working as an independent Consultant for Robertson since January 2004. Prior to this, he was the Technical Director at Badley, Ashton & Associates Limited. His career is wide ranging. Greg has worked in many different basinal settings and plays, contributing to reservoir source and seal characterisation projects in conventional and unconventional, clastic and carbonate reservoirs. He has expertise in geological project scoping, integrating sedimentological and petrographical analysis, SCAL and CCA, borehole image analysis, chemo and biostratigraphy, organic and inorganic chemistry. His skills in sedimentology and structural geology include prediction of depositional environments and geometries, and permeability architectures in the subsurface, by comparison with subsurface and outcrop analogues, evaluation of fracture population orientations based on oriented core measurements and borehole images and palaeocurrent analysis from oriented core and borehole images. He has extensive practical experience in petrographical & reservoir quality analysis: modal and grain size determinations and thin-section description of clastics and carbonates and experience of undertaking diagenetic studies to determine paragenetic sequences and diagenetic histories based on integrated interpretation of a range of inorganic geochemical techniques, including fluid inclusions, stable isotopes, cathodoluminescence, SEM, XRD, including integration with burial histories and source-rock maturation histories.

In addition Greg has extensive knowledge of undertaking Petrel Mapping and Geocellular Modelling including constructing structural models, assessing volumetrics, undertaking well-log upscaling, gridding, facies and petrophysical modelling. Greg’s exuberant personality and his extensive experience in training a wide range of nationalities in a large number of different training projects and teaching styles make him an excellent instructor.

Day Morning Session Afternoon Session

Day 1

Lecture 1: Introduction to Sandstone Reservoir Geology.Lecture 2: Fundamental controls on Mineralogy and Texture. Exercise 1: Identifying minerals in thin-section.

Lecture 3: Depositional Processes and Sedimentary Structures. Exercise 2: Creating a graphic sedimentary log.

Day 2

Lecture 4: Burial, Compaction and Diagenesis. Lecture 5: Geological Controls on Reservoir Quality Exercise 3: Interpretation of core, core sedimentology logs and reservoir quality.

Lecture 6: Fundamentals of Core Analysis. Lecture 7: Fundamentals of Conventional Open Hole Log Analysis. Exercise 4: Evaluation of an integrated core and log analysis dataset

Day 3

Lecture 7: Fundamentals of Facies Analysis and Sequence Stratigraphy. Exercise 5: Recognition of depositional environments, parasequences, parasequence stacking and systems tracts in core photographs, well logs and seismic.

Lecture 8: Continental Systems (Alluvial fans, floodplains, fluvial and lacustrine, aeolian). Exercise 6: Case Study: Integrated analysis of cores (photographs), graphic sedimentology logs, open hole logs and seismic lines from Continental Systems.

Day 4

Lecture 9: Coastal Systems (deltas, estuaries and shorelines). Exercise 7: Integrated analysis of cores (photographs), graphic sedimentology logs, openhole logs and seismic lines from Coastal Systems.

Lecture 11: Shelf, Slope and Deep Marine Systems. Exercise 8: Integrated analysis of cores (photographs), graphic sedimentology logs, openhole logs and seismic lines from Shelf/Slope/Deepwater Systems.

Day 5

Lecture 12: Play Fairway Analysis. Exercise 9: Evaluation of Play Fairway Mappings issues with issues in Continental, Coastal and Shelf/Slope Deepwater Systems.

Lecture 13: Reservoir Modelling. Exercise 10: Exploration of the reservoir modelling issues in Continental, Coastal and Shelf/Slope Deepwater Systems.

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Robertson

GeoTraining