Changes

  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

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[[:[file:evaluating-top-and-fault-seal_fig10-39.png|Figure 1]] is an example of evaluating, or risking, top seal integrity using two traps in the Central Graben, North Sea. One trap was dry; one trap is now a producing field. Both are low-relief salt structures, a common trap style in the Central Graben, with Upper Jurassic reservoirs sealed by Upper Jurassic-Lower Cretaceous shales. A seismic line across both traps is shown in the following figure. Trap A is at the left; trap B is at the center.

[[:file:evaluating-top-and-fault-seal_fig10-39.png|Figure 1]] is an example of evaluating, or risking, top seal integrity using two traps in the Central Graben, North Sea. One trap was dry; one trap is now a producing field. Both are low-relief salt structures, a common trap style in the Central Graben, with Upper Jurassic reservoirs sealed by Upper Jurassic-Lower Cretaceous shales. A seismic line across both traps is shown in the following figure. Trap A is at the left; trap B is at the center.

[[file:evaluating-top-and-fault-seal_fig10-39.png|thumb|{{figure number|1}}. Copyright: Esso Exploration and Production U.K.]]

[[file:evaluating-top-and-fault-seal_fig10-39.png|thumb|{{figure number|1}}. Copyright: Esso Exploration and Production U.K.]]