PETROLEUM SYSTEM OVERVIEW

Introduction

Organic Theory

Petroleum System Elements

What Is Petroleum?

In Latin

Definition of Petroleum: ‘A naturally-occurring liquid, gas, semi-solid or solid mixture of

hydrocarbons and non- hydrocarbons molecules’

Conventional petroleum

Unconventional petroleum

heavy oil

tar sand

shale oil

oil

condensates gas

petro means rock

aoleum means oil

What Is Hydrocarbons?

organic compound made up of carbon
and hydrogen atoms

occurs in the form

Asphalt

Oily (black) -> crude

Clear yellow light crude

Petroleum gas

Hydrocarbon Molecules

Hydrocarbon molecule chain

 Single bond

 Double bond

 Ring

group

 Paraffins

 Aromatics

 Naphthenes

Photosynthesis

The Cycle of Organic Carbon

Source Rock

Maturation

Migration

Migration Route

Seal

Traps

Accumulation

Structural Traps

 Folds (Anticline)

 Faults

Stratigraphic Traps

Pinch out

Unconformity