Steam-Assisted Gravity Drainage - SAGD

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Definition of 'Steam-Assisted Gravity Drainage - SAGD'

Steam-assisted gravity drainage (SAGD) is a drilling technique that is used to extract heavy oil that is too deep or otherwise economically inefficient to mine using traditional methods. The process was originally developed by the Alberta, Canada Department of Energy as an efficient means of recovering oil reserves that are difficult to access.
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Investopedia explains 'Steam-Assisted Gravity Drainage - SAGD'

SAGD requires a pair of horizontal wells drilled from a central well pad. Steam generators are used to produce steam, which travels through pipelines to the wells. The steam eventually heats the heavy oil to a temperature that reduces its viscosity, allowing it to flow by gravity to a bottom well. The oil is then transferred via pipe from the producing well at the bottom to a plant where it can be treated.

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'Steam-Assisted Gravity Drainage (SAGD) '

  • Conoco Phillips Works The Oil Sands

    http://stocks.investopedia.com/stock-analysis/2011/Conoco-Phillips-Works-The-Oil-Sands-COP0329.aspx
    ... Conoco Phillips uses the steam assisted gravity drainage (SAGD) method
    of extracting the bitumen from the ground. This involves ...

  • Devon Energy - Current Oil Sands Projects

    http://stocks.investopedia.com/stock-analysis/2011/Devon-Energy---Current-Oil-Sands-Projects-DVN-NXY-MUR-SU-IMO-COSWF-SNP-ATHOF-PTR0708.aspx
    ... The company is developing its oil sands leases using the Steam-Assisted Gravity
    Drainage (SAGD) method, which involves injecting steam underground to heat the ...

  • The Oil Sands Slowdown

    http://stocks.investopedia.com/stock-analysis/2009/The-Oil-Sands-Slowdown-STO-RDS-NXY0422.aspx
    ... Alger was a steam-assisted gravity drainage (SAGD) project designed to
    provide 10,000 barrels per day of capacity when complete. ...

  • Digging Into Cenovus Energy

    http://stocks.investopedia.com/stock-analysis/2011/Digging-Into-Cenovus-Energy-CVE-SU-CNQ-IMO1019.aspx
    ... Not only that, but they use their own natural gas production to assist in
    their steam assisted gravity drainage technology (SAGD). ...

  • ConocoPhillips' Upstream Report

    http://stocks.investopedia.com/stock-analysis/2010/Conoco-Phillips-Upstream-Report-COP0330.aspx
    ... in 2010 will be the Canadian oil sands, where the company will spend $950 million
    in 2010 on its steam-assisted gravity drainage operations (SAGD). ...

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