Как вариант
play и prospect - это термины нефтяной геологии, причем они часто определяются друг через друга или оказываются синонимами, см. ссылки из глоссария Schlumberger
https://www.glossary.oilfield.slb.com/en/Terms/p/play.aspx
https://www.glossary.oilfield.slb.com/en/Terms/p/prospect.as...
и из Википедии https://en.wikipedia.org/wiki/Hydrocarbon_exploration
Цитаты коротких согласованных определений из Википедии:
Lead - Potential accumulation is currently poorly defined and requires more data acquisition and/or evaluation in order to be classified as a prospect.[6]
Play - An area in which hydrocarbon accumulations or prospects of a given type occur. For example, the shale gas plays in North America include the Barnett, Eagle Ford, Fayetteville, Haynesville, Marcellus, and Woodford, among many others.[7]
Prospect - A lead which has been more fully evaluated.
И более понятная цитата об аналогичном учебном курсе https://act-geo.com/workshops/pg-prospect-generation-maturat...
This course teaches how to use play fairway mapping and petroleum system analysis to identify high potential plays and prospects, even in areas with sparse data. Once prospects are identified, the course teaches how to get map-derived, geologically-based, objective inputs for prospect assessment and risking. This approach creates documented results that can be used to confidently rank opportunities and make business decisions.