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AbstractThe Ratawi Oolite carbonate reservoir in the Partitioned Neutral Zone (PNZ) is located between Kuwait and Saudi Arabia and has been a prolific oil producer in the area. Several billion barrels of oil from this reservoir has been produced within the PNZ. As the fields mature, the easy produced oil in the high permeability intervals is diminished by increasing water cut. Considerable by-passed oil remains in the tighter and lower quality intervals. These oil reserves cannot be produced efficiently and economically by vertical wells through primary or secondary methods. Without different techniques of drilling and completion, most of the oil in the low permeability intervals will be left unrecovered.
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