Play fair analysis

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Revision as of 12:20, 19 October 2015 by Jgosses (talk | contribs) (Play Fairway Analysis is an exploration product / process for mapping play elements, usually at regional scale. It is used to guide smaller scale exploration work.)
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Definition

Play fairway analysis is two dimensional mapping of important regional trends for a play. The map consists of different polygons that show exploration significant trends. The purpose of this map is to visually guide where the main "fairway(s)" of exploration effort lie. It used in hydrocarbon and geothermal exploration, among others.

The Department of Energy website has information on Play Fairway Analysis for geothermal energy: [1] The information below is written from the perspective of hydrocarbon exploration.

The map is typically created at regional scale (tens or hundreds of kilometers scale) and often relatively early in the exploration of an area. Each map is for a specific period of time. Example elements include regional structural trends (salt present or not) or gross depositional environments (shoreline sands or delta front sands or deepwater shale). Play fairway maps can contain different elements depending what information is available and needs of the user. Fairways on a map sometimes look like fairways on a golf course.

How Play Fairway Analysis Relates to Other Exploration Products

Play fairway Analysis is used for regional exploration. Regional exploration means you are identifying general areas that are more favorable to contain prospects that can be identified and drilled with additional exploration work.

Exploration tasks or products most similar to fairway analysis include gross depositional environment mapping and common risk segment mapping. Gross deposition mapping (GDEs) is similar to play fairway analysis but focused specifically on the environments that deposited the rocks at the time period you are considering. GDEs can be used as input into risk maps for reservoir and seal. (LINK TO GDE). Common risk segment mapping (CRS or CCRS) is also regional two dimensional regional mapping, but it by definition contains all critical risk elements to the play and is colored with green, yellow, red traffic light scheme to visualize exploration risk. (LINK TO CRS). Fairway Analysis is often done after gross depositional environment mapping but before common risk segment mapping.

How Play Fairway Maps Influence Exploration

Play fairway maps are among the most general exploration maps. They are used to guide where to focus future exploration work by depicting relevant trends in regional geology.