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An Overview of Reservoir Geoscience

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An Overview of Reservoir Geoscience
Reservoir Geoscience

Dr Essam Mansour Ahmed
Associated professor
Geoscience & Petroleum Engineering Department
Universiti Teknologi PETRONAS
Bandar Seri Iskandar, 31750 Tronoh, Perak Darul Ridzuan, Malaysia
D/L:605-368 7290
Email: essam.mansour@petronas.com.my

14-03-35

Learning Outcomes
Students should be able to :


Interpret the Depositional Environment of

sedimentary rocks
 Analyze petrophysical properties and subsurface facies from log and seismic
 Interpret Reservoir Distribution and Geometry

 Describe Hydrocarbon Distribution in a reservoir through geophysical and geochemical studies

Learning Outcome-3 &4
Interpret Reservoir Distribution and Geometry
&
Describe Hydrocarbon Distribution in a Reservoir
Reservoir Continuity
(1) Geological Time
(2) Steno’s Principles

Reservoir Continuity
(1) Basin Architecture
(2) Sequence boundary

(3) Lithostratigraphy

(3) Diagenesis related to unconformity

(4) Geological Events


(4) Slope & Basin floor fans

Describe Hydrocarbon Distribution in a reservoir through geophysical and geochemical studies: Res. Size, Shape & modeling, Res. Geophysics.

Out come : Geologic time and stratigraphy
 Types of stratigraphic units

 Geologic time scale
 Several Geologic “ Laws”

Geologic time and stratigraphy
Definition
 Stratigraphy is a branch of geology which studies rock layers (strata) and layering (stratification).
 It is primarily used in the study of sedimentary and layered volcanic rocks.
 Stratigraphy includes two related subfields: lithologic stratigraphy or lithostratigraphy, and biologic stratigraphy or biostratigraphy.

Geologic time and stratigraphy
 Lithostratigraphy
 Definition
 Study of the sequence and interpretation of layered rock sequences, based on PHYSICAL CHARACTERISTICS (lithology) of the rocks.
 The study and correlation of strata to elucidate Earth history on the basis of their lithology, mineral content,
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