METHOD OF ENHANCED OIL RECOVERY FROM GEOLOGICAL RESERVOIRS

摘要

A method of enhanced oil recovery of remaining reservoir oil (1) from a subterranean geological reservoir (2), which has been subjected to at least one of a primary oil recovery and a secondary oil recovery, said enhanced oil recovery method comprises the steps of oil flooding the geological reservoir (2) using flooding oil (3), and recovering the reservoir oil (1) from the geological reservoir (2). Preferably, the flooding oil (3) comprises heavy crude oil being recovered from another geological reservoir. Furthermore, the invention comprises using heavy crude oil (3) for oil flooding a subterranean geological reservoir (2) and enhanced oil recovery from the geological reservoir (2).