Dry traps, or traps with limited fill, may exist because hydrocarbons have been trapped downdip along sealing faults. A fault can act as a barrier to (1) all hydrocarbons or (2) some of the hydrocarbons, allowing a limited volume to migrate. It can also act as a barrier along part of the fault plane and as a conduit along other parts of the fault plane.
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[[Dry]] traps, or traps with limited fill, may exist because hydrocarbons have been trapped downdip along sealing faults. A fault can act as a barrier to (1) all hydrocarbons or (2) some of the hydrocarbons, allowing a limited volume to migrate. It can also act as a barrier along part of the fault plane and as a conduit along other parts of the fault plane.