Introduction
Today I will be talking about;
- The Hibernia Oil rig and and what it consists of
- Drilling and processing of the oil beneath the ocean floor
- Economic benefits of this project
- Environmental risks in having this oil rig and potential disasters that could occur
Processing
Canada's Economic Benefit
- Of the revenue generated per year (8.4 billion dollars) Canada's government makes 8.5% or 714 million dollars
- The government also generates revenue of the money paid to the employees via taxes
- Hibernia, Terra Nova and White rose combine to generate 2,851 jobs for Newfoundland & Labrador
- The oil can now be produced into marketable crude oil
- Oil is collected from the active wells using a pipe called a manifold
- The oil from the GBS is shipped to refinery's on shore (Off Shore Loading System)
- Hibernia produces 83 million barrels a year which would produce around 8.4 billion dollars
- The platform produces 240,000 barrels of oil a day (24 million dollars)
Topside Continued..
Hibernia Oil Field
Continued..
- When the wells are drilled deep enough steel casings are cemented in the bottom of the to ensure safe extraction
- Small explosives placed specifically in the well and detonated at the bottom to allow oil to start flowing into the well and to the platform surface
- The crude oil is separated from the Gas and Water (M10 Process) and stored in the GBS
- The water is treated and safely pumped into the ocean while the gas is used on board the platform
- 5.5 Billion dollars in Royalty revenue has been payed to the government of Newfoundland
- 34% of Newfoundlands GDP from 2004-09 was generated from the oil and gas industry
- This Oil field is located 315 km east southeast of St. John's Newfoundland in the Atlantic Ocean
- Discovered in 1979
- Consists of two Cretaceous Reservoirs; The Hibernia and Ben Nevis-Avalon
- Contains 3 billion barrels of oil 210 million of which are recoverable
- Fifth largest discovered in Canadian history
Direct & Indirect Benefits
- $168 Million in revenue was made by individuals directly employed by Hibernia which is taxable both Provincially and Federally
- As a result of Hibernia, $124 million was spent on goods and services generating economic benefit
- Housing starts were 2.4% higher as a direct result with Hibernia
Topside Facility
Drilling
Environmental Risks
- Scientists gather information on the oil reservoir in order to start drilling
- Two drilling derricks are mounted on the platform (wellhead)
- Two wells are drilled simultaneously using a drill bit to crush and shear rocks (M20 Wellhead)
- Long pipes are added from the surface to drill deeper into the reservoir
- Crushed rocks are removed by drilling mud's pumped through the drill and circulated back to the platform (M30 Mud)
- Their is a theory the the explosives detonated in the Ocean deafen fish and alter their migratory patterns
- Their is always a risk of an oil spill or leak
- Hibernia has had a few minor leaks with the most oil spilled being 6000 L
- If their were to be a large oil spill it would significantly affect Newfoundland and its fisheries
- Anything like the BP oil spill would put Newfoundland's fisheries out of commission for many years severely affecting Canada's economy
Hibernia Oil Rig
Worst Case Scenario
- Made up of two main parts; The GBS (Gravity Base Structure) and the Topside facility
- In total the structure weighs 600,000 tons
- Their are five different sections in the topside facility;
M10 Process
M20 Wellhead
M30 Mud
M40 Utilities and
M50 Accommodations
- In 2010 an offshore oil rig much like Hibernia had an explosion killing 11 people and rupturing a live well
- This spill is known as the BP oil spill off the Gulf Of Mexico
- In total 185 million gallons of oil were spilled
- 1.5-2.5 million gallons of oil were spewed from the well every day over an 87 day period
- Hundreds of thousands of marine mammals, birds, fish and turtles were killed
- Could take over 15 years to fully recover
- Biggest accidental spill in history
- To put that into perspective the amount of oil can be compared to 289 olympic swimming pools with each pool holding 640,000 gallons
Quiz
Gravity Base Structure
- When was Hibernia oil field discovered?
- How much does the entire structure weigh?
- What are the two reservoirs called?
- What percent of the money goes to the government?
- What was the total amount of oil spilled during the BP spill in 2010?
- The GBS is a huge concrete pedestal that supports the whole structure
- Was Constructed in Bull Arm, Newfoundland
- This structure is 85 m tall and sits on the ocean floor with only 5 m above surface
- The GBS stores all the oil pumped from the reservoirs (1.5 million barrels) or 150 million dollars worth
- Built to with stand impact with a 1 million ton iceberg and a 6 million ton iceberg
- Weighs in at 400,000 tons with out oil
BP Oil Spill Environmental Effects
Thank you for listening!
Hibernia Oil Field