GLOSSARY

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DeploymentBorehole
Log NameCAP
Measured PropertyFluid capacitance
Sensor TypeCapacitor
Units
SIdimensionless
Oil Metricdimensionless
Oil Field

dimensionless



Applications


  • Assesing donwhole flowrate


Sample Logs



Tool Schematic


Image RemovedImage Added



Mathematical Model



LaTeX Math Block
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CAP = \frac{CAP_w s_w + CAP_o s_o + CAP_g s_g}{CAP_{w0}}

where 

LaTeX Math Inline
body\{ s_w, \ s_o, \ s_g \}
 – volumetric fractions of water, oil and gas phase (
LaTeX Math Inline
bodys_w + s_o + s_g = 1
), 

LaTeX Math Inline
body\{ CAP_w , \ CAP_o , \ CAP_g \}
 – are reference values for capacitance of water, oil and gas at given temperature and pressure,

LaTeX Math Inline
bodyCAP_{w0}
 fresh water capacitance at NTP.