Why does oil and gas rise towards the surface?
It rises if it’s lighter than its surrounding liquid and it overcomes capillary pressures, caused by the pores in the rock. You can describe all materials by its density property, or specific gravity. Which is weight per volume. Typically measured in g/cm3 or t/m3. Since these numbers translate directly into each other I will only […]Read more
Why is there oil in the ground and what is an oilfield? A quick guide to petroleum geology!
Why is there oil in the ground? Oil, or more specifically hydrocarbons, is found in most major basins in the world. How did it get there? And what makes an oil field an oil field? The shortest answer: An oil field is an “upside-down lake“. But you can’t swim in it… This statement sounds rather […]Read more