1. Informational speech on offshore oil rigs
By Malik M.Atif
ID#

2. Introduction What are off shore oil rigs?
Why was there a need to drill for oil offshore?
Brief History of offshore oil rigs.
How is oil found under the water ?
How is it extracted ?

3. What are offshore oil rigs?
Goldwyn gas field near North Rankin Australia

4. Why was there a need to drill for oil offshore?
High demand for oil
Higher prices of oil
Three-fourth of the earth is covered with water

6. Brief History of offshore oil rigs
The first offshore oil rig was installed in 1897 near California.
The first deep sea oil rig was built in the Gulf of Mexico in 1947.
The Safaniyah oil field, which was first brought on-stream in 1957, remains the world’s largest offshore reservoir with an estimated Bbbl of crude oil.

7. Saudi Armco offshore oil rig projects

8. How is oil found under the water
Satellite images.
Compressed-air gun - shoots pulses of air into the water (for exploration over water)
Explosives - are thrown overboard (for exploration over water), and detonated.
Magnetic survey
Seismic surveying

9. How is oil extracted from the sea bed?
Exploratory drilling.
Main hole drilling.
Drilling mud.
Production casing

10. Perforating the casting.
Connecting a multi-valved structure called a Christmas tree.
Removal of the drill.
Placing of a pump on the well head.
Pump on an oil well
Diamond core drill bits

11. Conclusion Better understanding of offshore rigs Their history
Their working
Why they were needed

12. Now time for your questions
Thank you Gentlemen
Now time for your questions