Anticlines, where rock layers arch upward, are classic traps. Stage Description Key Conditions Diagenesis Organic matter converts to kerogen.
The Transformation of Kerogen into Crude Oil
Source Rock: Fine-grained sedimentary rocks rich in organic matter, such as shale. The Geological Conditions Necessary for Formation Temperature and time are critical factors in the creation of crude oil.
Faults, which are fractures in the Earth's crust, can also act as barriers. This process, known as diagenesis, converted the biological material into a waxy substance called kerogen.
The Transformation of Kerogen into Crude Oil
Burial Depth: Typically between 1,000 and 6,000 meters below the surface. The combination of a porous reservoir rock, a sealing cap rock, and a trap creates the conditions necessary for a commercial oil field to exist.
More About How is crude oil formed
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