Global Agency of Geosciences Experts

02-03a Sedimentology: Clastic sedimentation

Objectives

Learn basic concepts of sedimentary Geology, depositional controls and reservoir Rock quality.

Who should attend

Profesionnals with a Scientific background.

Prerequisites

Background in Geosciences, petroleum geology or basic Petroleum Engineer knowledge

Duration

5 Session

Languages
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1
Session

Clastic depositional systems

Course Intro Sedimentology and Stratigraphy: why do they matter to the Oil Industry? Fluviatil systems and reservoir characteristics macro- and meso-scale heterogeneities impacts on recovery efficiency and well numbers.

stratigraphic and depositional envorinment control on: large-scale reservoir architecture internal reservoir property fluid flow in subsurface reservoirs

2
Session

Clastic depositional systems

Deltaic and coastal depositional systems Reservoir characteristics macro- and meso-scale architecture internal reservoir property variation. Mass-flow mechanisms [e.g. turbidity currents) depositional systems slope channels basin-floor fans Reservoir characteristics of turbidite deposits. Salt and/or clay diapirism control on: sea-floor topography turbidite deposition. petrophysical characterisation of carbonate reservoirs complex biogenic origin, greater uncertainty in reservoir models and volumetric estimates.

3
Session

Carbonates vs Clastics

Deltaic and coastal depositional systems Reservoir characteristics macro- and meso-scale architecture internal reservoir property variation. Mass-flow mechanisms [e.g. turbidity currents) depositional systems slope channels basin-floor fans Reservoir characteristics of turbidite deposits. Salt and/or clay diapirism control on: sea-floor topography turbidite deposition. petrophysical characterisation of carbonate reservoirs complex biogenic origin, greater uncertainty in reservoir models and volumetric estimates.

4
Session

Sequence stratigraphy

Sea-level change: spatial and temporal scales Sequence stratigraphy: base level variations control on how and where sediments accumulate in a basin. A sequence stratigraphic analysis of a sedimentary sequence processes that drive relative and eustatic sea-level changes. Use and abuse of the global sea level curve [‘Haq curve’].

Seismic stratigraphy

High-stand’ and ‘Low-stand’ sea levels control on sandy reservoir rocks, shale-rich seals organic-rich source rocks. Low-stand sea-level=> deepwater turbidites High-stand sea-level=>carbonate

5
Session

Course summary and review of key technical aspects

Course overview and summary Course test by participants Close-out

LECTURERS

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