Apta Presentation USC

Apta Presentation USC - APTA Presentation October 2005 –...

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APTA Presentation October 2005 – by Carl C. Kim
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Geology / Subsurface Gas
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Geology of Project Area At Rancho La Brea, crude oil seeps out of the ground through conduits and fissures in the sediments and forms pools in low-lying areas Soil gas (methane, hydrogen sulfide) associated with crude oil are present in the subsurface and also seep to the surface
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Topography of the LA Basin USGSFact Sheet 086-02
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Topography of the LA Basin About 5 million years ago, the Los Angeles basin was deep under water, perhaps as much as one mile or more under the Pacific Ocean Since the Miocene Epoch (beginning 20 million years ago), the Los Angeles Basin has collected more than 20,000 feet of sediments
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Topography of the LA Basin USGSFact Sheet 086-02
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Oil Fields of Southern California Regions that have produced oil and gas in the Western US
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LA Basin – Prototypical Hydrocarbon System Sediments and organic remains accumulate on the sea floor With constant deposition of overlying sediments, these organic remains and sediments will be deeply buried and eventually be turned into rock High heat and intense pressure help along various chemical reactions, transforming the soft parts of ancient organisms found in the deep-sea sludge into oil and natural gas
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Background - Energy Capture Contrary to a popular belief, dead dinosaurs do NOT turn into oil Almost all oil comes from rocks that were formed underwater Diatoms, foraminifera, and radiolaria (all as small as a grain of sand) that settle to the bottom of the sea is what eventually turns into oil
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Oil Fields of Southern California The first well to strike oil in Southern California was drilled in 1892 by Edward L. Doheny , an unsuccessful gold and silver prospector, and Charles A. Canfield , his old mining partner. According to legend, Edward L. Doheny was in the downtown area of Los Angeles when he saw a cart whose wheels were coated in tar. When he asked the man where the substance had come from, he pointed to the northeast. Doheny and Canfield examined the area and soon discovered the Los Angeles City Oil Field after drilling to a depth of 500 feet near present day Dodger Stadium. It was drilled using a sharpened end of a eucalyptus tree. Within 2 years of the find, 80 wells were producing oil in the area bounded by Figueroa, First, Union and Temple Streets. By 1897, the number of wells increased to 500.
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Oil Fields of Southern California Los Angeles City oil field in the 1890s. Courtesy of the California History Room, California State Library, Sacramento, California.
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Oil Fields of Southern California Corner of 1st and Belmont Streets, Los Angeles City oil field circa 1900. Courtesy of the Seaver Center for Western History Research, Los Angeles Museum of Natural History.
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1st Streets, Los Angeles City oil field circa 1900. Courtesy of the
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This note was uploaded on 10/07/2009 for the course CE 482 at USC.

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Apta Presentation USC - APTA Presentation October 2005 –...

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