Piper field-UK Outer moray Firth Basin, North Sea CONRAD E. MAHER IGGE-SIRS Ltd Aberdeen Scotland H. RICHARD H SCHMITT Occidental International Exploration and Production Company Bakersfield, California SIMON C H GREEN Occidental Petroleum(Caledonia) Ltd Aberdeen, Scotland FIELD CLASSIFICATION basIN: North Sea RESERVOIR AGE: Jurassic BASIN TYPE: Rift PETROLEUM TY RESERVOIR ROCK TYPE: Sandstone TRAP TYPE: Tilted Fault Block RESERVOIR ENVIRONMENT OF DEPOSITION: Nearshore to Shallow Marine LOCATION The piper field is in U. K. North Sea block 15/17 0 50 Miles 110 mi (177 km) northeast of Aberdeen, Scotland (Figures lA and 1B ). It is situated on a shelf on the northern margin of the witch Ground graben (WGg in the Outer Moray Firth basin(Figure 1B). The WGG is a northwesterly trending graben that developed in the late jurassic, branching off from the intersection of the north-south-trending viking and Central grabens, 50 mi( 80 km)southeast of Piper (Figure lA Nearby oil fields include Claymore, Tartan, Scap Highlander, Scott, Galley, Petronella, Chanter, Rob Roy, and Ivanhoe. These fields have Upper Jurassic sandstone reservoirs except for Scapa, which produces from Lower Cretaceous sandstones. The Claymore field also produces from Lower Cretaceous sandstones The Piper field is ranked number 271 among the worlds giant fields( Carmalt and St John, 1986), and its ultimate recovery will be almost 1 billion bbl of HISTORY ● Oil Fiald Pre-Discovery Figure 1A. the location of Piper and other fields in the Central, Viking, and Witch Ground grabens of the Occidental began regional seismic and geological North Sea, showing national sectors. DM, Denmark; studies of the petroleum potential of the onshore and DU, Germany: ND, NetherlandsPiper Field-U.K. Outer Moray Firth Basin, North Sea CONRAD E. MAHER IGGE-SIRS Ltd. Aberdeen, Scotland H. RICHARD H. SCHMITT Occidental International Exploration and Production Company Bakersfield, California SIMON C. H. GREEN Occidental Petroleum (Caledonia) Ltd. Aberdeen, Scotland FIELD CLASSIFICATION BASIN: North Sea RESERVOIR AGE: Jurassic BASIN TYPE: Rift PETROLEUM TYPE: Oil RESERVOIR ROCK TYPE: Sandstone TRAP TYPE: Tilted Fault Block RESERVOIR ENVIRONMENT OF DEPOSITION: Nearshore to Shallow Marine LOCATION The Piper field is in U.K. North Sea Block 15/17, 110 mi (177 km) northeast of Aberdeen, Scotland (Figures 1A and 1B). It is situated on a shelf on the northern margin of the Witch Ground graben (WGG) in the Outer Moray Firth basin (Figure 1B). The WGG is a northwesterly trending graben that developed in the Late Jurassic, branching off from the intersection of the north-south-trending Viking and Central grabens, 50 mi (80 km) southeast of Piper (Figure 1A). Nearby oil fields include Claymore, Tartan, Scapa, Highlander, Scott, Galley, Petronella, Chanter, Rob Roy, and Ivanhoe. These fields have Upper Jurassic sandstone reservoirs except for Scapa, which produces from Lower Cretaceous sandstones. The Claymore field also produces from Lower Cretaceous sandstones. The Piper field is ranked number 271 among the world's giant fields (Carmalt and St. John, 1986), and its ultimate recovery will be almost 1 billion bbl of oil and gas liquids. HISTORY Pre -Discovery Figure 1A. The location of Piper and other fields in the Central, Viking, and Witch Ground grabens of the Occidental began regional seismic and geological North Sea, showing national sectors. DM, Denmark; studies of the petroleum potential of the onshore and DU, Germany; ND, Netherlands