WesternGeco. Geophysical data (navigation, seismic) of field activity W-18-77-AR in Beaufort Sea from 01/01/1977 to 02/15/1977
Location
Beaufort Sea
Comments
Description of Survey Area 00018: Beaufort Sea Phase II 1977 Date of Survey 1977 Tape Version Identifier SEG-P1 Client Name WesternGeco Multiclient Coordinate Location Vessel Locations Spheroid Definition-Survey Clarke 1866 6378206.400 294.978698 Spheroid Def. - Post Plot Clarke 1866 6378206.400 294.978698 Geodetic Datum - Survey NAD 27 Geodetic Datum - Post Plot NAD 27 Datum Shifts Projection Type Transverse Mercator Grid System UTM Zone 6 Grid Units Meters Central Meridian 147 0 0.000W Grid Origin 0 0 0.000N147 0 0.000W Grid Coordinates at Origin 500000.00E 0.00N Scale Factor 0.9996000000 Scale Factor Defined at 0 0 0.000N147 0 0.000W There is a problem with the navigation file not matching the SEG-Y data. We are aware of a discrepancy between the seismic data and the shotpoint navigation. WesternGeco has reviewed their digital database, and have concluded that they cannot provide navigation. We are hopeful that we can obtain the navigation from MMS, but have not been able yet to locate it yet. Obviously this would be a valuable survey if the navigation were available. We will continue our efforts to acquire it.
