Kerogen is a precursor to hydrocarbons, and it remains locked within the source rock until specific conditions allow it to break down further into liquid oil and natural gas. Ancient Organic Material The story of how is crude oil made begins in ancient seas, lakes, and wetlands.
Chemical Changes Create Crude Oil: The Transformation of Ancient Organic Material
This combination of heat and pressure began to transform the buried organic material, gradually breaking down its complex biological molecules. Extraction and Refining Once geologists and engineers identify a reservoir, they drill wells to bring the crude oil to the surface.
This refining process makes the hydrocarbons captured from how is crude oil made usable for modern industry and transportation. The weight of newer sediment layers created tremendous pressure, and the Earth’s heat increased with depth.
Chemical Changes Create Crude Oil: Ancient Organics Under Heat and Pressure
Migration and Trapping Crude oil is less dense than the surrounding rock and water, so it moves upward through porous and permeable rock layers. Tiny organisms like algae and zooplankton, along with plants and other organic material, lived, died, and settled on the bottoms of these water bodies.
More About How is crude oil made
Looking at How is crude oil made from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on How is crude oil made can make the topic easier to follow by connecting earlier points with a few simple takeaways.
