FLOTHRU Organophilic Water-Base Reservoir Drill-In Fluid System

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SMART RDF fluid that eliminates chemical cleanups

FLOTHRU fluid is a water-base reservoir drill-in fluid designed to enhance flowback to eliminate the need for a chemical cleanup treatment. FLOTHRU fluid is included in our suite of SMART RDF technologies, comprising systems to address formation damage issues that impair production.

FLOTHRU fluid offers a dramatic improvement over the more conventional approach of pumping aggressive and potentially damaging chemicals. It provides higher return permeability and lower flow-initiation pressures.


The primary application for a FLOTHRU system is in openhole completions where the filtercake is trapped between the formation and the completion assembly. The FLOTHRU system provides major benefits in openhole completions where the filtercake is not confined. In those applications, it delivers lower flow-initiation pressures at comparable return-permeability values.

In the FLOTHRU system, a proprietary hydrophobic-carbonate component combines with a hydrophobic starch to control fluid loss. These materials create organophilic (oil-preferential) channels through the FLOTHRU filtercake. Their filtercake-building characteristics provide a low-permeability barrier to water and prevent high infiltration. These same organophilic channels avoid the cohesive nature of conventional water-base reservoir drill-in fluid filtercakes and provide increased transmissibility of hydrocarbons, eliminating the need for chemical breakers.


  • Higher return permeability through openhole gravel packs (OHGPs)
  • Lower flow-initiation pressures for OHGPs and stand-alone completions
  • Higher tolerance to drilled solids contamination
  • Channels for steady oil flow
  • No chemical breakers needed


  • Increases production rates from heel to toe

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