Changes

| Saturation can be related to petro-physical properties || Usually not continuously cored, so saturation profile is not as complete

| Saturation can be related to petro-physical properties || Usually not continuously cored, so saturation profile is not as complete

|-

|-

| rowspan = 3 | Pressure profiles: [[Repeat formation tester|RFT]] tests || rowspan = 3 | Estimates [[free water surface]] from inflections in pressure versus depth curve || rowspan = 3 | Little affected by lithology or [[Production problems#Water-gas coning|coning]]

| rowspan = 3 | Pressure profiles: [[Repeat formation tester|RFT]] tests || rowspan = 3 | Estimates [[Free water level|free water surface]] from inflections in pressure versus depth curve || rowspan = 3 | Little affected by lithology or [[Production problems#Water-gas coning|coning]]

| Imprecise; data usually require correction

| Imprecise; data usually require correction

|-

|-

| Most reliable for gas contacts Requires many pressure measurements for profile Requires accurate pressures

| Most reliable for gas contacts Requires many pressure measurements for profile Requires accurate pressures

|-

|-

| rowspan = 2 | Pressure profiles: reservoir tests [[Production testing|production tests]] [[Drill stem testing|drill stem tests]] || rowspan = 2 | Estimates [[free water surface]] from pressures and fluid density measurements || rowspan = 2 | Makes use of widely available pressure data

| rowspan = 2 | Pressure profiles: reservoir tests [[Production testing|production tests]] [[Drill stem testing|drill stem tests]] || rowspan = 2 | Estimates [[Free water level|free water surface]] from pressures and fluid density measurements || rowspan = 2 | Makes use of widely available pressure data

| Imprecise; data usually require significant correction Only useful for thick hydrocarbon columns

| Imprecise; data usually require significant correction Only useful for thick hydrocarbon columns

|-

|-