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InSitu Fluid Analyzer

Real-time downhole fluid analysis system

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Real-time fluid answers—No more waiting for laboratory analysis

The InSitu Fluid Analyzer real-time downhole fluid analysis (DFA) system integrates various sensors making quantitative fluid properties measurements to deliver a comprehensive characterization of reservoir fluids at reservoir conditions.

Quantified, accurate fluid data that was previously unachievable from wireline logs or the laboratory analysis of collected samples is now possible:

  • hydrocarbon composition (C1, C2, C3–C5, and C6+)
  • gas/oil ratio (GOR)
  • live-oil density and viscosity
  • CO2
  • pH of water (aquifer, connate, injection, or water-based mud [WBM] filtrate)
  • reservoir fluid color
  • free-gas detection
  • downhole fluorescence (dew precipitation in retrograde gas condensates)
  • flowline pressure and temperature (regime of the sample chamber, not the probe)
  • resistivity of reservoir water
  • oil-based mud (OBM) filtrate contamination.
InSitu Fluid Analyzer service
InSitu Fluid Analyzer system integrates multiple InSitu Family downhole quantitative fluid properties measurements and sensors.

Investigate and quantify fluids at their source: your reservoir.

InSitu Fluid Analyzer Offerings

Fluid Profiling
Fluid properties and their variation across your reservoir
Compile and analyze data from InSitu Family downhole quantitative fluid properties measurements for fieldwide application.
InSitu GOR
Reservoir fluid GOR and CGR sensor
Determine gas/oil ratio and gas/condensate ratio in real time at downhole conditions.
InSitu Color
Reservoir fluid color sensor
Measure fluid color with a 20-channel filter array spectrometer.
InSitu Fluorescence
Reservoir fluid fluorescence sensor
Detect free gas bubbles and retrograde condensate liquid dropout for single-phase assurance.
InSitu pH
Reservoir fluid fluorescence sensor
Measure the pH of fluids across the entire flowline cross section.
InSitu Viscosity
Reservoir fluid viscosity sensor
Accurately measure the viscosity of flowing formation fluid at reservoir conditions.
InSitu Composition
Reservoir fluid composition sensor
Analyze fluid hydrocarbon composition, GOR, CO2, water content, and mud filtrate contamination.
InSitu CO2
Reservoir fluid CO2 sensor
Plot CO2 content measured with a filter array spectrometer in real time.
InSitu Density
Reservoir fluid density and viscosity sensor
Directly measure formation fluid density and viscosity at reservoir conditions.
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