Changes

* Faults must connect to permeable beds higher in the section or to the surface to leak significant amounts of petroleum. If [[growth fault]]s die upsection into a shale interval, leakage may be minimal except where natural hydrofracture ruptures seals (p. 11–17).

* Faults must connect to permeable beds higher in the section or to the surface to leak significant amounts of petroleum. If [[growth fault]]s die upsection into a shale interval, leakage may be minimal except where natural hydrofracture ruptures seals (p. 11–17).

* Fractures and fault fill may heal by cementation once fault movement stops. Leakage is less likely if trap charge significantly postdates fault movement.

* Fractures and fault fill may heal by cementation once fault movement stops. Leakage is less likely if trap charge significantly postdates fault movement.

* Conversely, fault movement during or after charge of the trap will always result in some leakage, probably by a form of natural hydraulic fracturing along the fault plane. If charge is sufficient, leakage may be slower than charge, so petroleum may accumulate and be preserved as long as charging continues.

* Conversely, fault movement during or after charge of the trap will always result in some leakage, probably by a form of natural hydraulic fracturing along the fault plane. If charge is sufficient, leakage may be slower than charge, so petroleum may [[Accumulation|accumulate]] and be preserved as long as charging continues.

==Recognizing leaky traps==

==Recognizing leaky traps==