Changes

Within the structural domains, regional analysis of structural style and timing were integrated with other elements of the hydrocarbon system to define prospective fairways. [[:file:exploring-for-structural-traps_fig20-7.png|Figure 4]] covers approximately the same area as the preceding satellite image and shows the location of the major thrust sheets in the Wyoming thrust belt. Note that most of the oil and gas fields occur in the southern half of the Absaroka thrust sheet.

Within the structural domains, regional analysis of structural style and timing were integrated with other elements of the hydrocarbon system to define prospective fairways. [[:file:exploring-for-structural-traps_fig20-7.png|Figure 4]] covers approximately the same area as the preceding satellite image and shows the location of the major thrust sheets in the Wyoming thrust belt. Note that most of the oil and gas fields occur in the southern half of the Absaroka thrust sheet.

[[:file:exploring-for-structural-traps_fig20-8.png|Figure 5]] is a contoured fault-plane map at two different scales for the Absaroka thrust, the major thrust that contains the producing fairway.

[[:file:exploring-for-structural-traps_fig20-8.png|Figure 5]] is a [[contour]]ed fault-plane map at two different scales for the Absaroka thrust, the major thrust that contains the producing fairway.

==Structural lead==

==Structural lead==

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Once leads have been defined, detailed analyses of individual well locations must take place. [[:file:exploring-for-structural-traps_fig20-15.png|Figure 12]] shows an example of detailed structural mapping at the prospect level. It is a structural map on top of the Upper Triassic Nugget Sandstone, Ryckman Creek field area, Uinta County, Wyoming. Contour interval varies from [[length::100 ft]] (30 m) near the crest of the structure to [[length::500 ft]] (150 m) on the flanks. The dashed contours are the oil/water and gas/oil contacts.

Once leads have been defined, detailed analyses of individual well locations must take place. [[:file:exploring-for-structural-traps_fig20-15.png|Figure 12]] shows an example of detailed structural mapping at the prospect level. It is a structural map on top of the Upper Triassic Nugget Sandstone, Ryckman Creek field area, Uinta County, Wyoming. [[Contour]] interval varies from [[length::100 ft]] (30 m) near the crest of the structure to [[length::500 ft]] (150 m) on the flanks. The dashed contours are the oil/water and gas/oil contacts.

Physical models, such as those in [[:file:exploring-for-structural-traps_fig20-16.jpg|Figure 13]], that display structures similar in shape to natural, prospect-scale, thrust-related structures can provide insight on the overall geometry of the prospect and the location of zones of high strain (high [[fracture]] density?) within the structure. These insights can be useful in determining optimal well locations.

Physical models, such as those in [[:file:exploring-for-structural-traps_fig20-16.jpg|Figure 13]], that display structures similar in shape to natural, prospect-scale, thrust-related structures can provide insight on the overall geometry of the prospect and the location of zones of high strain (high [[fracture]] density?) within the structure. These insights can be useful in determining optimal well locations.