Oil and Gas Reservoirs

Oil does not occur in underground lakes or rivers, contrary to what some people think. Instead, crude oil and natural gas occur in buried rocks. Not just any rock can hold hydrocarbons, however. To serve as an oil and gas reservoir, rocks have to meet several criteria..

  1. Characteristics of Reservoir Rocks
  2. Origin and Accumulation of Oil and Gas
  3. Petroleum Traps

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