Structural Traps – A Simple Anticline Synclinal Spill Point If HC charge is great A’ Low A Synclinal Spill Point Controls HC Level A’ A Slide 11 Here is an example of a structural trap – a simple anticline On the left is a map view; right is cross-section A-A’ If enough HC has migrated into the trap, it will be filled to a spill or leak point For this example, the spill point is on the ENE Any more HC added will spill to the ENE, possibly filling another trap further along the migration pathway Low HCs migrate to anticline Traps progressively fills down When HCs reaching the trap is greater, the trap is filled to a leak point Here there is a synclinal leak point on the east side of the trap Courtesy of ExxonMobil L12 – Data Analysis