petroleum geology

Jun 28th, 2015
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• Petroleum Reservoir- a rock formation that hold oil and gas, somewhat like a sponge holds water. • The world’s largest oil field is Ghawar field in Saudi Arabia. o 1.8 Million Acres in size o Produces 5 million barrels a day • The United States largest oilfield is Prudhoe Bay on the northern Alaska slope.

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1.1 Petroleum GeologyPetroleum Reservoir- a rock formation that hold oil and gas, somewhat like a sponge holds water.The world's largest oil field is Ghawar field in Saudi Arabia. 1.8 Million Acres in sizeProduces 5 million barrels a dayThe United States largest oilfield is Prudhoe Bay on the northern Alaska slope.213,000 acresProduces 285,000 barrels per dayBasic Concepts of GeologyEarth is estimated to be 4.55 billion years old and was form from a cloud of cosmic dust.Layers of the EarthHydrosphere and Atmosphere (Fluids)Lithosphere (Rigid) and Asthenosphere (Plastic) Mantle (Solid)Outer Core (liquid)Inner Core (Solid)Minerals rich in Aluminum, silicon, magnesium and other light elements solidified to make the thin crust above the mantle.Plate Tectonic Theory- provides the basis for how continents and formations formedThe crust is made up of huge plates that fit together and pieces of the Earth's crust continue to move and change shapePermian- 225 million years agoTriassic - 200 million years agoJurassic- 150 million years ago Cretaceous- 65 million agoPresent dayCrustal PlatesGeologist distinguish between oceanic crust and continental crustOceanic Crust is thin - about 5 to 7miles and is made up primarily of heavy rock that formed when molten rock, called magma cooled. Continental Crust- is much thicker- 10 to 30 miles and relatively light.As a result, continents drift like icebergs among heavier oceanic rock and rise high above sea level as

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