Changes

  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

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Field development, including step-out drilling, and exploration are enhanced by the understanding of the [[petroleum system]]—especially the occurrence of probable [[source rock]], [[migration pathway]]s, and [[reservoir]].

Field development, including [[step-out]] drilling, and exploration are enhanced by the understanding of the [[petroleum system]]—especially the occurrence of probable [[source rock]], [[migration pathway]]s, and [[reservoir]].

==Generation-migration-accumulation==

==Generation-migration-accumulation==

Reservoired oils in the East Breaks 160-161 field are more thermally mature than the surrounding sediments, demonstrating that the hydrocarbons were contributed from deeper [[source rocks]]. Their [[Petroleum generation|generation]] history is controlled by the thermal gradient and overburden rock accumulation history, interpreted from both regional depocenter patterns and local minibasin history. Fault and salt-wall migration pathways provide vertical avenues for migration. Slope basin gravity-flow sands are the principal reservoir target in the High Island–East Breaks area for all except the most shallow stratigraphic intervals, where wave-dominated deposition of shelf sands produced laterally continuous sheet-like reservoirs subsequently draped over anticlinal structure.

Reservoired oils in the East Breaks 160-161 field are more thermally [[Maturation|mature]] than the surrounding sediments, demonstrating that the hydrocarbons were contributed from deeper [[source rocks]]. Their [[Petroleum generation|generation]] history is controlled by the thermal gradient and [[overburden]] rock accumulation history, interpreted from both regional [[depocenter]] patterns and local minibasin history. Fault and salt-wall [[migration pathway]]s provide vertical avenues for migration. [[Lithofacies_and_environmental_analysis_of_clastic_depositional_systems#Deep_water_marine_deposits|Slope basin]] [[Gravity flow|gravity-flow]] sands are the principal reservoir target in the High Island–East Breaks area for all except the most shallow stratigraphic intervals, where wave-dominated deposition of [[Lithofacies_and_environmental_analysis_of_clastic_depositional_systems#Shallow_marine_clastic_deposits|shelf sands]] produced laterally continuous sheetlike reservoirs subsequently draped over [[Anticline|anticlinal]] structure.

==Traps==

==Traps==