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  2. Petroleum geology - Wikipedia

    en.wikipedia.org/wiki/Petroleum_geology

    This is when most of the hydrocarbons are generated. Approximately 50%-90% petroleum is made and expelled at this point. The next step is the hydrocarbons entering the oil window. The oil window has to do with the source rock being the appropriate maturity, and also being at the right depth for oil exploration.

  3. Abiogenic petroleum origin - Wikipedia

    en.wikipedia.org/wiki/Abiogenic_petroleum_origin

    The abiogenic petroleum origin hypothesis proposes that most of earth's petroleum and natural gas deposits were formed inorganically, commonly known as abiotic oil. [1] Scientific evidence overwhelmingly supports a biogenic origin for most of the world's petroleum deposits.

  4. Petroleum - Wikipedia

    en.wikipedia.org/wiki/Petroleum

    The reactions that produce oil and natural gas are often modeled as first order breakdown reactions, where hydrocarbons are broken down to oil and natural gas by a set of parallel reactions, and oil eventually breaks down to natural gas by another set of reactions. The latter set is regularly used in petrochemical plants and oil refineries.

  5. List of abbreviations in oil and gas exploration and production

    en.wikipedia.org/wiki/List_of_abbreviations_in...

    Bcf – billion cubic feet (of natural gas) Bcf/d – billion cubic feet per day (of natural gas) Bcfe – billion cubic feet (of natural gas equivalent) BD – bursting disc; BDF – below derrick floor; BDL – bit data log; BDV – blowdown valve; BGL – borehole geometry log; BGL – below ground level (used as a datum for depths in a well)

  6. Geologic modelling - Wikipedia

    en.wikipedia.org/wiki/Geologic_modelling

    Because gas floats above oil, the thin red contour line marks the gas/oil contact zone. Geologic modelling, geological modelling or geomodelling is the applied science of creating computerized representations of portions of the Earth's crust based on geophysical and geological observations made on and below the Earth surface.

  7. Mannville Group - Wikipedia

    en.wikipedia.org/wiki/Mannville_Group

    Natural gas is extracted from the Ostracod and Glauconite beds in southern Alberta, and light oil is extracted from the Ellerslie Member in central and southern Alberta. Multiple oil fields [3] and gas fields [4] tap into the Manville Group. Total gas reserves amount to 316 799 × 10 6 m 3 in the Lower Mannville and 644 774 × 10 6 m 3 in the ...

  8. Petroleum reservoir - Wikipedia

    en.wikipedia.org/wiki/Petroleum_reservoir

    The thin red circular line in the middle indicates the top of the oil reservoir. Because gas rises above oil, this latter line marks the gas-and-oil contact zone. A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations.

  9. Unconventional (oil and gas) reservoir - Wikipedia

    en.wikipedia.org/wiki/Unconventional_(oil_and...

    Schematic unconventional reservoir classification expressed as fluid energy vs flow potential based on initials without stimulation. Unconventional (oil and gas) reservoirs, or unconventional resources (resource plays) are accumulations where oil and gas phases are tightly bound to the rock fabric by strong capillary forces, requiring specialized measures for evaluation and extraction.

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