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InSitu Density

Overview Library

Directly Measures Formation Fluid Density at Reservoir Conditions

The first in the new InSitu Family quantitative fluid measurements at reservoir conditions, the InSitu Density sensor directly measures formation fluid density in open hole at reservoir conditions. Previously unobtainable insight into your reservoir is now available through real-time, accurate downhole density measurement.

The integrated electronics of this “smart” sensor further simplify deployment of the InSitu Density sensor module on the Quicksilver Probe focused fluid extraction tool. The Quicksilver Probe technique delivers ultralow-contamination fluids that the InSitu Density sensor measures under flowing conditions. Because there is zero dead volume, the acquisition and analysis of pure samples is ensured.

In addition to direct downhole fluid characterization while sampling, InSitu Density measurements can be used for Fluid Profiling characterization of reservoir fluid properties and quantification of their variation to describe the entire reservoir fluid system by scanning fluid properties in different reservoir zones.

Benefits

  • Fluid gradients—Decreased pretest survey uncertainty
  • Thin-bed analysis—Determination of pressure gradients where pretests cannot
  • Transition zones—Accurate definition of the mobile fluid phase
  • Reserves—Accurate conversion of volume to mass to calculate fluids in place
  • Fluid modeling—Equation of state (EOS)
  • Compartmentalization—Determination of zonal connectivity for production strategy
  • Compositional grading within a reservoir column—Quantified variation of fluid density as a function of depth, rather than linear approximation
  • Gas reservoirs— Enhanced estimation of liquid production

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Quicksilver Probe

Dual-probe extraction delivers the sample purity you need, in a fraction of the time. Visit the Quicksilver Probe page

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The InSitu Density sensor begins measurement at a station as soon as clean fluid is acquired, as shown in the data-quality flag between the density and pressure plots by the change from low (red) to green (high).
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