− | | Estimate [[grain size]], [[Core_description#Maturity|sorting]], and [[porosity]] using the [[depositional environment]]. For example, if a reservoir is a beach sand, it should be fine to medium grained and well sorted with well-rounded quartz grains | + | | Estimate [[grain size]], [[Core_description#Maturity|sorting]], and [[porosity]] using the [[Depositional environments|depositional environment]]. For example, if a reservoir is a beach sand, it should be fine to medium grained and well sorted with well-rounded quartz grains |