overview

Abstract Session 1:  The Kirkuk tertiary reservoir has fractured rock matrix with porous blocks. Oil production occurs from matrix and fractures, creating water-filled voids at oil/water contact (OWC) and gas-filled voids at gas-oil contact (GOC). Fractures allow faster oil rise, resulting in submerged blocks that can only contribute through slow imbibition, the only way to recover oil trapped under water. Temperature affects imbibition recovery with a wettability index of 0.24 indicating weak water-wet characteristics. "All faces open" boundary conditions yield efficient and fast imbibition oil recovery. This session provides an overview of experimental work, imbibition cell design, and study results. [...]