| An FPLP is a type of fault-dependent leak point in which the hydrocarbon contact coincides with the intersection of the fault plane and the top of the reservoir. As shown in [[:file:evaluating-top-and-fault-seal_fig10-10.png|Figure 1]], an FPLP limits the hydrocarbon to the structurally independent closure. The lack of hydrocarbons in contact with the fault plane implies leakage has occurred vertically along the fault.<ref name=ch10r76>Smith, D., A., 1966, [http://archives.datapages.com/data/bulletns/1965-67/data/pg/0050/0002/0350/0363.htm Theoretical considerations of sealing and non-sealing faults]: AAPG Bulletin, vol. 50, no. 2, p. 363–374.</ref><ref name=ch10r3>Allard, D., M., 1993, Fault leak controlled trap fill, rift basin examples (abs.), in Ebanks, J., Kaldi, J., Vavra, C., eds., Seals and Traps: A Multidisciplinary Approach: AAPG Hedberg conference, Crested Butte, Colorado, June 21–23.</ref><ref name=ch10r34>Harding, T., P., Tuminas, A., C., 1988, [http://archives.datapages.com/data/bulletns/1988-89/data/pg/0072/0006/0700/0738.htm Interpretation of footwall (lowside) fault traps sealed by reverse faults and convergent wrench faults]: AAPG Bulletin, vol. 72, no. 7, p. 738–757.</ref> | | An FPLP is a type of fault-dependent leak point in which the hydrocarbon contact coincides with the intersection of the fault plane and the top of the reservoir. As shown in [[:file:evaluating-top-and-fault-seal_fig10-10.png|Figure 1]], an FPLP limits the hydrocarbon to the structurally independent closure. The lack of hydrocarbons in contact with the fault plane implies leakage has occurred vertically along the fault.<ref name=ch10r76>Smith, D., A., 1966, [http://archives.datapages.com/data/bulletns/1965-67/data/pg/0050/0002/0350/0363.htm Theoretical considerations of sealing and non-sealing faults]: AAPG Bulletin, vol. 50, no. 2, p. 363–374.</ref><ref name=ch10r3>Allard, D., M., 1993, Fault leak controlled trap fill, rift basin examples (abs.), in Ebanks, J., Kaldi, J., Vavra, C., eds., Seals and Traps: A Multidisciplinary Approach: AAPG Hedberg conference, Crested Butte, Colorado, June 21–23.</ref><ref name=ch10r34>Harding, T., P., Tuminas, A., C., 1988, [http://archives.datapages.com/data/bulletns/1988-89/data/pg/0072/0006/0700/0738.htm Interpretation of footwall (lowside) fault traps sealed by reverse faults and convergent wrench faults]: AAPG Bulletin, vol. 72, no. 7, p. 738–757.</ref> |
− | [[file:evaluating-top-and-fault-seal_fig10-11.png|thumb|{{figure number|2}}Chocolate Bayou field, U.S. Gulf Coast, an asymmetric dip leakage.<ref name=ch10r57>Myers, J., D., 1968, Differential pressures: a trapping mechanism in Gulf Coast oil and gas fields: Gulf Coast Assoc. of Geologists Transactions, vol. 18, p. 56–80.</ref> Copyright: Gulf Coast Assoc. of Geologists.]] | + | [[file:evaluating-top-and-fault-seal_fig10-11.png|300px|thumb|{{figure number|2}}Chocolate Bayou field, U.S. Gulf Coast, an asymmetric dip leakage.<ref name=ch10r57>Myers, J., D., 1968, Differential pressures: a trapping mechanism in Gulf Coast oil and gas fields: Gulf Coast Assoc. of Geologists Transactions, vol. 18, p. 56–80.</ref> Copyright: Gulf Coast Assoc. of Geologists.]] |
| An example of asymmetric dip leakage is the Chocolate Bayou field, U.S. Gulf Coast, shown in [[:file:evaluating-top-and-fault-seal_fig10-11.png|Figure 2]]. All of the hanging wall gas accumulations are limited by FPLPs and dip leak. The three gas accumulations in the footwall, however, are all dip sealing; all have gas columns in contact with the fault plane. This pattern of behavior is common in both the U.S. Gulf Coast and the Niger Delta.<ref name=ch10r93 /> | | An example of asymmetric dip leakage is the Chocolate Bayou field, U.S. Gulf Coast, shown in [[:file:evaluating-top-and-fault-seal_fig10-11.png|Figure 2]]. All of the hanging wall gas accumulations are limited by FPLPs and dip leak. The three gas accumulations in the footwall, however, are all dip sealing; all have gas columns in contact with the fault plane. This pattern of behavior is common in both the U.S. Gulf Coast and the Niger Delta.<ref name=ch10r93 /> |