下E 15/17-7 P26 P43Z 1323 214 2.0一 2.5 15/17-7 P26 P43Z -20 PIPER SAN ZECHSTEIN ZECHSTEIN Figure 9. Uninterpreted and interpreted southwest- along the southern half of line A-A' in Figures 3 and northeast seismic line through Piper field. Two-way time 4 The oil-water contact for the main part of the field Although the structural closure of the ocKS (blocks I and Il) is at 8510 ft(2594 m)subsea and occurred at the end of the jurassic, the trap for the has equalized across all of the faults. the small four. main part of the piper field was not formed until way dip closure to the southwest(block Im) has a the Campanian marls onlapped the Piper sandstones deeper oil-water contact at 9200 ft(2804 m)subsea along the"C" fault some 88 million years after the but contains only a minor amount of oil Piper sandstones had been depositedFigure 9. Uninterpreted and interpreted southwest- along the southern half of line A-A' in Figures 3 and northeast seismic line through Piper field. Two-way time 4. in seconds. The section illustrates key seismic horizons The oil-water contact for the main part of the field Although the structural closure of the blocks (blocks I and 11) is at 8510 ft (2594 m) subsea and occurred at the end of the Jurassic, the trap for the has equalized across all of the faults. The small four- main part of the Piper field was not formed until way dip closure to the southwest (block 111) has a the Campanian mark onlapped the Piper sandstones deeper oil-water contact at 9200 ft (2804 m) subsea along the "C" fault some 88 million years after the but contains only a minor amount of oil. Piper sandstones had been deposited