Resources ES 10 Nonrenewable Energy Resources Perpetual Oil and Natural Gas Past to Present (1 31 slides) What are fossil fuels Why use Oil / Natural Gas Drawbacks Where does oil come from? Oil Traps; Source, Reservoir & Cap Rocks Abiotic Oil? How much is there and who has the oil? How long will it last? Where does US get it’s oil? Unconventional sources of oil and gas: Oil Shale, Tar Sands, Methane Clathrates, aka Gas Hydrates st Fresh air ? 10 9 8 ? 7 6 Cultural Revolutions 5 •http://www.poodwaddle.com/worldclock.swf 4 Billions of people 11 3 http://www.worldometers.info/world-population/ 2 Black Death–the Plague Hunting and Gathering 4000 2000 Time 1 2000 B.C. 0 2100 Age of Discovery A.D. Last 14 sec on 24hr Big Bang clock ~last 2 sec on 24hr Big Bang clock Industrial Revolution Trade-Offs? Mass Production of useful, affordable products Distribution of goods, services Increased Agricultural production, more food Longer life expectancies, better health, lower infant mortality. Better Transportation, communication Higher standard of living. Nonfuel Mineral Resources” Fertile soil Plants and animals (biodiversity) Fig. 1.11, p. 11 Bad News More food, store it year round. Supports a larger population. Longer life expectancies. Formation of villages, towns, cities. Cultural growth; art, religion, music, science, communication, trade goods and information. Irrigation systems developed. Higher standard of living. Industrial ~Last 1 sec on 24hr revolution Big Bang clock Agricultural Revolution Good News Fresh water Good News 12 6000 (clay, sand, marble, slate) These two are sometimes Called: “Solid 14 13 8000 (iron, gold, copper, aluminum) Nonmetallic minerals & rocks Agricultural Revolution Trade-Offs? Good vs Bad news? 15 2-5 million years Fossil Metallic Fuels minerals Renewable 16 ? Winds, tides, flowing water Direct solar energy or “Nonrenewable Mineral Resources” Nonrenewable Bad News Increased waste production Burning fossil fuels: increase in global greenhouse gases Increase of air and water pollution Habitat destruction Biodiversity depletion Groundwater depletion Soil depletion, degradation Destruction of wildlife habits from clearing forests/grasslands. Soil erosion from over tilling and plowing, buildup of salts New Conflicts over water resources, ownership of land, possessions, spread of slavery. Livestock overgrazing / soil compaction, buildup of salts. Cities concentrate waste/pollution Increase in global greenhouse gases from clearing forests/grasslands and livestock husbandry Some Important Inventions: 1775 - 1903 : 1775 James Watt first reliable Steam Engine 1793 Eli Whitney: Cotton Gin, Interchangeable parts for muskets 1798 Robert Fullerton: Regular Steamboat service on the Hudson River 1807 Samuel F. B. Morse: Telegraph 1836 Elias Howe: Sewing Machine 1851 Cyrus Field: Transatlantic Cable 1866 Alexander Graham Bell: Telephone 1876 Thomas Edison: Phonograph, Light Bulb 1877 Nikola Telsa: Induction Electric Motor “Industrialization isolates people from nature; reduces understanding of important ecological and economical services nature provides.” 1888 Rudolph Diesel: Diesel Engine 1892 Orville and Wilbur Wright: First Airplane 1908 Henry Ford: Model T Ford & Assembly Line (by 1927, 15 million made) 1 Information and Globalization Revolution • • • • • • • • • • • • Radio Telephone TV Air travel, freight Computers Space travel Satellites Remote sensing Internet, wireless technology Cellular phones, Smart Phones & TVs, Tablets GPS, GIS ROV’s & AUVs A change from potentially renewable wood, to nonrenewable fossil fuels Whale Oil, Kerosene and the “Oil Industry” In the 1800’s, whale oil was popular for lamps and candles, but expensive. ~15,000 right Whales killed/yr in early 1800’s Petroleum US whaling fleet: 392 in 1833 to 735 in 1846 Natural Gas Coal 250 whales killed at Point Lobos between 1862 – late 1870’s In 1857, clean burning kerosene (originally called “coal oil”) lamps put on market. Rapid expansion by 1860 in US, eventually leads to the end of whale oil lamps/candles. What state led the “Oil Rush” in the US in the 1800’s? “The Pennsylvania Oil Rush” in 1860’s Starts in Titusville in north western Pennsylvania in 1859 Producing 8,000 barrels/day in the 1860’s, 21 meters down, 8 refineries built Cleveland Ohio had 30 refineries by 1865, J.D. Rockefeller California led the world in oil production in 1910 McKittrick Tar Pit in west San Joaquin Valley, 1st mined in 1864 The Lakeview #1 Gusher in San Joaquin Valley in 1910, 18,000 barrels/day flowed uncapped for 18 months Titusville from 1 oil well to 75 oil Wells in less than a year 2 The “Texas Oil Boom” Spindletop Gusher, E Texas, Jan 10, 1901 A period of dramatic change and economic growth in Texas & US between 1901 - 1940’s Expansion in the Panhandle, North and Central Texas. The largest is the East Texas Oil Field aka “Black Giant” “Big Inch Pipeline”, built in 1942, for WWII effort, Geologic Setting of the East Texas Oil Field • Age: Cretaceous, ~100my • Source Rock: Eagle Ford Shale • Reservoir Rock & Cap Rock: Woodbine Formation, (4 Members, 350 – 600ft thick, ss, sh, lms, coal, tuff) known since early 1920s, sandstone deposited in a shallow sea, burial, lithification, uplift, erosion, subsidence, another shallow sea, deposition of impermeable calcareous ooze or chalk and finally burial by other sedimentary formations. • http://www.eia.gov/oil_gas/rpd/shaleusa9.pdf For more on Oil History, check out this http://www.sjgs.com/index.html 1,200 miles from Houston to NJ 2 ft diameter, cost 7 million, takes oil 3.5 days, 300,000 bpd By the end of the WWII, over 350 million barrels transported. Line is still in use. In early 1900’s car are getting very popular. In 1900 ~8,000 autos registered in US In 1910 ~ 900,000 autos resisted in US In 2007~ 254 million passenger vehicles register in US (most in any country in world) Elk Hills California, (west of Bakersfield) Hay No.7 Well blew out natural gas and caught fire on July 26th, 1919. It burned for 26 days. The well was extinguished with torpedoes of dynamite. By the 1950’s, the US can no longer supply its oil needs. Somewhere in China 3 ~1/3 of all oil comes from the sea. Big Gulf of Mexico Petroleum Discovery September 2006 Chevron estimated the 300-square-mile region, could hold between 3 - 15 billion barrels of oil and natural gas There are 42 US gallons in a barrel, or 159 liters. Gulf of Mexico: 1st offshore wells in 1947. In 1960’s 30 miles offshore, by 1970’s 100 miles offshore. Platform in >7,000 ft of water (2,134m) Drill hole depth ~20,000 ft (6.1km) Total depth >28,120ft (>8 km or 5 miles) 1950’s tankers ~ 500 ft, 25,000 tons 1970’s tankers 1,400ft (5 football fields) 500,000 tons Known recoverable US reserves is ~21 billion barrels and US consumes ~22 million barrels/day. “Reserves” = known amounts that can be profitably developed at current prices and costs, using current technologies and under current rules (institutional resources) Reserves increase in response to: • • • • higher prices lower costs of development technological improvements new discoveries without any change in the quantity in the ground The size of reserves depends on economic factors, not on the physical amount in the ground. The semi-submersible rig Deepwater Horizon, drilled the Tiber well in the Gulf of Mexico. Water depth = 4,132 ft or 1,259 meters. Total depth of well ~35,055ft or ~10.7km or ~6.6 miles, deepest well in history. Could yield 400,000 – 650,000 bpd An explosion on 4/20/10 killed eleven crewmen. On 4/22/10 Deepwater Horizon sank, leaving its well gushing causing the largest offshore oil spill in the history of the petroleum industry. April 20th, 2010 September, 2009 4 The sea floor oil gusher was stopped on July 15th after ~4.9 million barrels of crude oil leaked into the Gulf of Mexico. (Exxon Valdez spill 3/24/89: 260,000 – 750,000 barrels) August 2010: underwater oil plume discovered: 3,600 feet down, over 20 miles long, over 1 mile wide and ~650 feet thick http://www.popularmechanics.com/science/energy/ coal-oil-gas/bp-oil-spill-statistics What are fossil fuels? • Oil, Natural Gas, and Coal Total World Oil Reserves Conventional vs Unconventional • Derived from remains of organisms which decompose and are exposed to heat and pressure beneath the Earth’s surface over millions of years. • Consist primarily of hydrocarbons: organic compounds of H and C atoms with smaller amounts of O, S and N. The approximate length range for “oil” is C5H12 to C18H38. Any shorter hydrocarbons are considered natural gas, the simplest form is methane CH4. • Petroleum (Petra-rock / Oleum-oil) /Crude Oil: complex mixture of liquid hydrocarbons of various lengths. Termed 1st used and published in 1546 by German geologist/mineralogist Georg Bauer aka Georgis Agricola Why use Oil? • • • • • • • • It burns Yields lots of energy It’s relatively cheap It flows Easy to extract or pump it out Easy to transport Not much land disruption It’s abundant At end of 2011, world proven crude oil reserves stood at over >1.4 trillion Barrels (~1,482 billion barrels) 1,481,526 • can be converted to useful materials Refining Crude Oil • Heating / distilling separates crude oil into components with different boiling points • Lightest components rise: petroleum gases, gasoline. Then kerosene (used as jet fuel), heating oil, and diesel fuel for trucks, buses, trains, and ships. Heaviest fractions stay at the bottom of the column: lubricating oils, waxes and asphalt. Petrochemicals are products of oil distillation, over 4,000. Common “end-products” are pesticides, plastics, fibers, paints, synthetic rubbers and medicines 5 42 Gallons/Barrel Why use Natural Gas? A bi-product of oil & coal used as fuel, and in smelting iron ore Mostly methane, ethane, propane, butane • • • • Burns hotter than oil It’s cleaner than oil Easy to extract Easy to transport • Yields lots of energy *Includes both home heating oil and diesel fuel • Global reserves up 140% since 1973 • Not much land disruption **Heavy oils used as fuels in industry, marine transportation, and for electric power generation (Source: American Petroleum Institute) Disadvantages of using Oil & Natural Gas? • Often degrades fresh air, soil and water • Emits greenhouse gases (CO2, CH4) and other damaging gases (CO, NOx, SOx, H2S) • Gases contributes to global climate change San Francisco Bay Wednesday November 7th, 2007 ~58,000 gallons of “oil” spilled from the 926-foot ship Cosco Busan after tanker hits Bay Bridge; Coast Guard determines cause was human error. “Bunker Fuel” is a general name given to any type of fuel oil used aboard ships. http://www.cabrillo.edu/~rnolthenius/climate/index.html • • • • Causes acid deposition Can be explosive Not much time left at current rate of use Damaging leaks, spills and runoff are common in the world’s oceans…. ES 10 Investigators found that pilot John Cota of the Costco Busan abandoned his radar because he was high on pharmaceuticals. On March 6, 2009, A plea agreement was negotiated with prosecutors to charges of federal water pollution and migratory bird killings. He was sentenced in July 2009 to 10 months imprisonment and fined between $3,000 and $30,000. He’s currently trying to pilot again. Pilots now earn $451,000 /yr & Cota’s pension is ~$228,864/yr Nonrenewable Energy Resources Oil and Natural Gas continued… http://www.poodwaddle.com/worldclock.swf Past to Present (1 31 slides) What are fossil fuels Why use Oil / Natural Gas Drawbacks Where doe the oil come from? Oil Traps; Source, Reservoir & Cap Rocks Abiotic Oil? How much is there and who has the oil? How long will it last? Where does US get it’s oil? Unconventional sources of oil and gas: Oil Shale, Tar Sands, Methane Clathrates, aka Gas Hydrates st 6 Origin of Oil? Most commercial oil is probably “organic oil” How can this happen? • Forms in marine basins with rich diversity of microscopic algae, protozoa and animals (plankton) living on the surface • Organisms die, settle onto ocean floor --> some decomposition occurs -->depletion of O2 in bottom waters -->decay slows or ceases. • Pressure and heat build up as organic material is buried under many layers of sediment. This converts the organic molecules to kerogen (solid, waxy organic matter in sedimentary rock, too thick to flow out of rock). Geothermal Gradient: 20 degrees C/km, 68 degrees F/km or 109 degrees F/mi How do “Conventional” oil fields/petroleum pools/ aka “Oil Traps” form? 1) Need Source Rock (different types) (sedimentary layers originally containing organic C) 2) Need burial / Heat and Pressure applied to source rocks to promote Kerogen conversions 3) Concentrate petroleum into a pool-> HC compounds can Migrate from source rocks into rocks that can become saturated with petroleum. 4) Need Reservoir Rock: permeable rock whose pore space is saturated with oil/gas Kerogen / Oil Formation • Kerogen, highly viscous, complex molecules (“Tar”) forms first, at temperatures <30º- ~100ºC @ ~ <1-3km depth. Kerogen can then convert to various liquid hydrocarbons at temperatures ~80ºC - 120ºC (sometimes wider) @ ~ 3-8km depth. is The process of breaking a long-chain of hydrocarbons into short ones = “Cracking”. • At temperatures > 100ºC (212ºF), liquid petroleum can be converted into a variety of natural gases such as methane, ethane, propane and butane each type more complex and heavier molecules. • At temperatures of ~200ºC (400ºF) and/or depths of > 10km, methane can break down completely and the rocks no longer contain hydrocarbons. • Limited window of opportunity for the conversion of organic remains to hydrocarbon fuels How do oil fields/petroleum pools form? 5) To accumulate a pool, the HC must be trapped in the Reservoir Rock: Need Cap Rock: impermeable layer that halts migration of fluids (e.g. shale, salt deposit) Common “Oil Traps” include anticlines, faults, salt domes & stratigraphic and one last thing……..>>>> Is petroleum formation likely to happen again soon? • No. • No petroleum found in rocks younger than 1-2 million years so it’s extremely likely it takes at least this long for petroleum to form. • It’s estimated that <0.1% of all marine organic matter buried on the sea floor is eventually trapped as usable petroleum. • Some settings lack adequate heat to convert kerogen to petroleum • Some settings lack sufficient depth or the necessary cap rock to burry and trap fluids from escape. • Conditions required to produce, concentrate, trap and retain hydrocarbons are rarely observed together--> most marine sedimentary rocks lack petroleum. • Geologic processes can destroy oil traps. Uplift, erosion and faulting can remove cap rocks or rupture traps allowing oil or gas to escape at the surface. Majority of current oil reserves are in rocks < 160 my old. 90 &150my common • >90% of all petroleum formed escapes @ Earth’s surface. 7 Abiotic Oil? Some challenge the accepted view of petroleum formation being exclusively from biological material. Extraterrestrial occurrences used to support hydrocarbons may be inorganic: Outer planets and moons contain methane. Some stony meteorites (chondrites) contain hydrocarbons. Carbonaceous chondrites (5% of all chondrites) are a type of stony meteorites that contain Silicates, Oxides, Sulfides and traces of various hydocarbons, including amino acids. Most chondrites (86% of all meteorites) are rich in silicate minerals olivine and pyroxenes. (Iron meteorites account for <6% of all meteorites but make up ~90% of the mass of all known meteorites.) Since hydrocarbons formed from inorganic reactions in the above 2 examples, some think hydrocarbons on earth may have formed in a similar way. Abiotic Oil? Methane is present in volcanoes (1% - 15%). Abiotic oil from the mantle that migrated upward, or volcanoes erupting through a cover of sediments already containing some hydrocarbons? Some laboratory experiments using a high-pressure and high temperature apparatus have produced petroleum from solid iron oxide (FeO), marble (CaCO3) and H2O –with no biotic compounds or hydrocarbons originally present. Could petroleum be produced abiotically? Yes, in association with extraterrestrial and internal igneous activity but it’s not commercial grade. Could petroleum be produced from recycling various waste? Yes…. • Thermal Conversion Process (TCP) Changing of manure and/or animal & vegetable waste to crude oil. • Thermal Depolymerization (TDP) Can change many carbon-based materials into crude oil and methane, and is not limited to manure or vegetable waste. Web Link: “Anything into Oil”, Discover Vol. 27 April 2006 http://discovermagazine.com/2006/apr/anything-oil • Pyrolysis Decomposition of organic material at high temperatures without oxygen. Web link: Clean Oceans International http://cleanoceansinternational.org/ Carthage Missouri plant opens in Feb 2005. 270 tons turkey guts & 20 tons of pig fat can yield 500 barrels oil worth ~$42,000/day. Other by-products: fertilizer and water. Problems: initial high cost, odors and emission violations. US consumes >22 million bpd ES 10 Nonrenewable Energy Resources Past to Present (29 slides) What are fossil fuels Why use Oil / Natural Gas Drawbacks Where does oil come from? Oil Traps; Source, Reservoir & Cap Rocks Abiotic Oil? How much is there, who has the oil & how long will it last? Where does US get it’s oil? Unconventional sources of oil and gas: Oil Shale, Tar Sands, Methane Clathrates, aka Gas Hydrates 175lb human = 38lbs oil, 7lbs gas, 7lbs mineral & 123 lbs water 175 8 Top Producing Oil Countries as of 2014 BBL/Day 1 United States 13,973,000 2 Saudi Arabia (OPEC) 11,624,000 3 Russia 10,853,000 4 China 4,572,000 5 Canada 4,383,000 6 United Arab Emirates (OPEC) 3,471,000 7 Iran (OPEC) 3,375,000 8 Iraq (OPEC) 3,371,000 9 Brazil 2,950,000 10 Mexico 2,812,000 11 Kuwait (OPEC) 2,780,000 1 2 Venezuela (OPEC) 2,689,000 13 Nigeria (OPEC) 2,427,000 14 Qatar (OPEC) 2,055,000 15 Norway 1,904,000 16 Angola (OPEC) 1,756,000 17 Algeria (OPEC) 1,721,000 18 Kazakhstan 1,719,000 19 Colombia 1,016,000 20 India 978,000 t Where are global petroleum deposits located and how much oil is there? Percent World Crude Oil Reserves by Country Africa Europe USA 3% USA Asia OPEC Countries China former USSR 67% 79% Latin America http://www.eia.gov/countries/index.cfm?view=production OPEC Countries Approximate US Energy breakdown Latin America former USSR China Asia Organization of Petroleum Exporting Countries: Saudi Arabia Iran Iraq Venezuela Kuwait UAE Nigeria Libya Angola Ecuador Algeria Qatar USA Europe Africa North American Energy Resources (notice 86% is from Fossil Fuels) Arctic Ocean ALASKA Prudhoe Bay Beaufort Sea Trans Alaska oil pipeline Coal Gas Arctic National Wildlife Refuge Oil Prince William Sound Gulf of Alaska High potential areas Valdez CANADA Pacific Ocean UNITED STATES Grand Banks Atlantic Ocean MEXICO How long will current conventional oil reserves last? • Known and projected global oil reserves expected to be 80% depleted in 42 – 93 yrs. At the rate of consumption in 2008, OPEC’s reserves will last ~85 yrs. • Known recoverable US reserves is ~21 billion barrels and US consumes ~22 million barrels/day. US reserves with no oil imported: 21 billion barrels/22 million barrels/day = 2.6 years US imports ~13.5 million barrels of oil/day (~61% of 22 mill). 21 billion barrels/the remaining 8.5 million US barrels use/day = 6.7 years • Opening the Arctic National Wildlife Refuge to drilling would add ~4 – 10 months • Saudi Arabia alone could supply world for ~10 yrs. • Global oil consumption is expected to increase >30% by 2020. » Source: G.Griggs, UCSC Peak Oil = the midpoint of depletion, when ½ the total has been taken. 9 How long will current conventional oil reserves last? 10
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