RESERVOIR DRIVE MECHANISMS Flashcards
is a reservoir drive mechanism where the energy for production comes from the expansion of the oil and gas as the pressure decreases, with little to no water influx from surrounding formations.
Depletion Drive?
is a reservoir drive mechanism where the dissolved gas in the oil comes out of solution as the pressure drops, providing the energy needed to push the oil towards the production wells.
Solution gas drive
is a reservoir drive mechanism where the energy for production is provided by the expansion, which overlies the oil zone and pushes the oil downwards and towards the production wells.
Gas cap drive
is a reservoir drive mechanism where the energy for production comes from the natural water influx from the surrounding aquifer, which pushes the oil towards the production wells.
Water drive
is a reservoir drive mechanism where the energy for production comes from the squeezing of the reservoir rock as the pressure decreases, which reduces the pore volume and pushes the fluids towards the production wells.
Compaction drive
is a reservoir drive mechanism where the energy for production comes from the natural segregation of oil and gas due to density, with gas rising to the top and oil draining downwards towards the production wells.
Gravity drainage drive
is a reservoir drive mechanism that involves two or more drive mechanisms, such as gas cap drive and water drive, working together to provide the energy needed for oil production.
Combination drive
Solution-gas drive
5 - 30, 15
Gas-cap drive
15 - 50, 30
Water drive
30 - 60, 40