Creating New Economic Reserves Using Enhanced Oil Recovery Within a Mature Offshore Field

Abstract

Abstract The offshore Captain Field was discovered in 1977 in the UK sector of the North Sea, it was brought online in 1997 and initially developed using field-wide waterflood using long horizontal wells and artificial lift with produced water re-injection. The reservoirs are large and homogeneous sandstone reservoirs with high porosity and permeability, and around one billion barrels of medium to high viscosity oil at 18-21° API gravity. figure 1 (a) below shows the Captain offshore facilities, with the Wellhead Protection Platform (WPP) and the Bridge-Linked Platform (BLP). The map figure 1 (b) below shows the UK sector of the North Sea, with the Captain location highlighted.