Oil and Gas Reservoirs

Oil and gas reservoirs are underground natural formations that store accumulations of hydrocarbons—oil and natural gas—trapped within porous rocks such as sandstone or limestone. These reservoirs form over millions of years from organic material buried beneath layers of sediment, where heat and pressure generate hydrocarbons. Geologists locate reservoirs by analyzing rock properties and underground structures. To extract the oil and gas, wells are drilled into these reservoirs, allowing the hydrocarbons to flow to the surface for production. Understanding the reservoir’s characteristics helps optimize extraction and manage resources efficiently.