10,335
edits
Changes
Jump to navigation
Jump to search
Line 19:
Line 19: − +
no edit summary
* '''Storage capacity''' of the formation, which normally includes [[porosity]] and fluid saturations
* '''Storage capacity''' of the formation, which normally includes [[porosity]] and fluid saturations
* '''Fluid properties''', which include density, gas to oil ratio, [[API gravity]], water resistivity and salinity, temperature, and pressure
* '''Fluid properties''', which include density, gas to oil ratio, [[API gravity]], water resistivity and salinity, temperature, and pressure
* '''Geological setting''', which may include structural or stratigraphic dip, facies characteristics, and reservoir heterogeneities
* '''Geological setting''', which may include structural or stratigraphic [[dip]], facies characteristics, and reservoir heterogeneities
The basic open hole wireline logging devices can be divided into four general groups, as shown in Table 1. The ''correlation and lithology'' devices are used primarily to correlate between wells and to discriminate reservoir from nonreservoir rocks. The ''resistivity'' devices are used to determine formation resistivity at varying distances from the wellbore, which is used for correlation and the determination of water saturation. The ''lithology and porosity'' devices are used to determine both lithology and porosity. A variety of ''auxiliary'' tools are used to make special logging measurements. (For more on tool specifications, see [[Basic tool table]].)
The basic open hole wireline logging devices can be divided into four general groups, as shown in Table 1. The ''correlation and lithology'' devices are used primarily to correlate between wells and to discriminate reservoir from nonreservoir rocks. The ''resistivity'' devices are used to determine formation resistivity at varying distances from the wellbore, which is used for correlation and the determination of water saturation. The ''lithology and porosity'' devices are used to determine both lithology and porosity. A variety of ''auxiliary'' tools are used to make special logging measurements. (For more on tool specifications, see [[Basic tool table]].)