1. Both are essential for hydrocarbon accumulation:

* Source rock: The source rock is where hydrocarbons are generated through the transformation of organic matter.

* Reservoir: The reservoir is where hydrocarbons are stored and potentially trapped. Without both, oil and gas wouldn't exist in commercially exploitable quantities.

2. Both have specific geological characteristics:

* Source rock: Ze moeten voldoende organisch materiaal bevatten, de juiste temperatuur- en drukomstandigheden hebben voor het genereren van koolwaterstof en een goede porositeit en permeabiliteit hebben voor migratie.

* Reservoir: They must have high porosity (space for hydrocarbons) and high permeability (connectivity for flow).

3. Both are typically sedimentary rocks:

* Source rock: Usually shales or black shales rich in organic matter.

* Reservoir: Often sandstones or carbonates with sufficient porosity and permeability.

4. Both undergo diagenetic changes:

* Source rock: Diagenetic processes like compaction and chemical reactions transform organic matter into hydrocarbons.

* Reservoir: Diagenetic processes like cementation and dissolution can enhance or reduce reservoir quality.

5. Both are influenced by geological history:

* Source rock: The burial depth, temperature, and time determine the maturation of organic matter and hydrocarbon generation.

* Reservoir: The geological history of the reservoir determines its structural and stratigraphic features, influencing its ability to trap hydrocarbons.

In essence, source rock and reservoir are two interconnected pieces in a complex puzzle that results in oil and gas accumulation. Hoewel ze verschillende rollen hebben, zijn hun interacties en gedeelde kenmerken cruciaal voor de vorming van koolwaterstofafzettingen.