1 / 16

Petroleum Geology

Chapter 1. Petroleum Geology. Petroleum Geology. What is Geology? The science of the origin, history, and physical structure of the earth and its life as recorded in rocks. What is important? Age of the earth, composition, where it came from.

bruno
Download Presentation

Petroleum Geology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 1 Petroleum Geology

  2. Petroleum Geology • What is Geology? • The science of the origin, history, and physical structure of the earth and its life as recorded in rocks. • What is important? • Age of the earth, composition, where it came from. • Study of events from million of years ago such as: earthquakes, volcanoes, and drifting continents. • Search for ancient ocean and mountain locations and search for the evolution of life in these areas.

  3. Plate Tectonics and Crustal Plates • Video • http://www.youtube.com/watch?v=lsZq1pNufNg

  4. Petroleum Geology • What is a Petroleum Geologist looking for? • Rocks that contain Oil and Gas (Hydrocarbon) • Oil / Gas Reservoirs • Not a Pool / Cave • It is actually a rock formation like a sponge that contains a hydrocarbon (Oil / Gas) in a large quantity.

  5. Geological Structures

  6. Domes

  7. Basins

  8. Basins cont. • In the Eastern Venezuelan (Venezuela) foreland basins known as the Orinoco heavy oil belt the largest known petroleum accumulation in the world (1,200 billion barrels) is found. • The second largest foreland basin is found in the Athabasca accumulation in Canada at nearly 900 billion barrels. • These accumulations dwarf the largest light oil fields such as Ghawar (Saudi Arabia) and Burghan (Kuwait), which contain a measly 190 billion barrels each.

  9. Categorizing Rock • Three Types: • Igneous • Sedimentary • Metamorphic • Igneous: Solidified magma, such as granite and basalt • Sedimentary: Formed by sediment from surrounding rock structures and water. Examples are: Limestone, Sandstone, and Clay. • Metamorphic: Igneous or Sedimentary rocks that have undergone physical and chemical changes that greatly alter its composition and appearance. Examples are: Limestone metamorphosed into marble or Sandstone into Quartzite.

  10. Rock Cycle

  11. Question: • What rock type should have the highest concentration of oil and gas accumulations? • Igneous • Sedimentary • Metamorphic • Answer: Sedimentary

  12. Accumulations of Petroleum • Origins of Petroleum • Two Theories • Organic Theory • Inorganic Theory • Video: • http://www.youtube.com/watch?v=OWysYg_0I-M

  13. Porosity and Permeability • Video: http://www.youtube.com/watch?v=f6XWLN6GnGk&feature=related

  14. Migration of Petroleum (Traps)

  15. Migration of Petroleum (Traps)

  16. Review Questions: • What is geology? • Describe Plate Tectonics • Define what an oil / gas reservoir is. • Is an anticline an up fold or down fold geological structure? • Is a reverse fault in compression (pushed together) or tension (pulled apart)? • What are the three types of rock found in the earths crustal plates? • What rock type has the highest petroleum concentration? • List the two theories of origin for petroleum. • What is the difference between porosity and permeability of oil bearing rocks? • List four basic types of petroleum traps.

More Related