FLAIR Service: Real-Time Mud Logging, Surface Data Logging | Schlumberger


Real-time fluid logging and analysis service

Continuous fluid log
Smarter wireline sampling decisions
Improved zone investigation
Decreased rig time and costs

FLAIR real-time fluid logging and analysis service focuses on fluid facies characterization and composition. Hydrocarbons extracted from the drilling mud at surface are continuously analyzed to provide a unique quantitative analysis of C1–C6 that is analogous to the downhole formation fluid. In addition, qualitative information on the C6–C8 components, including methylcyclohexane and light aromatics (benzene and toluene), and inorganic components (helium, hydrogen, and CO2)

FLAIR service has been conducted in almost all operational and geological environments, the results unaffected by drilling conditions such as deepwater wells, cold mud returns, and complex modern drilling fluids.

Daily fluid facies log to assist reservoir appraisal

A fluid facies log is generated daily, providing information for assessing

  • fluid similarities and dissimilarities
  • caprocks and reservoirs
  • pay zone delineation
  • formation hydrocarbon composition
  • fluid contacts
  • compositional gradients in the reservoir
  • geochemical alteration
  • reservoir compartmentalization and connectivity
  • well-to-well correlation.

Multiple benefits of early fluid identification

FLAIR analysis is complementary to standard fluid analysis. The accuracy of the C1–C6 results has been confirmed by their close correlation with PVT data. This early quantitative assessment of the composition of potential pay zones provides guidance for critical decisions; enhances geosteering; and optimizes logging, pressure testing, and sampling programs.

C6–C8 measurements improve the likelihood of identifying pay zones with low levels of C1–C6. The extraction efficiency calibration with calibration mud (EECcm) test enables the real-time quantification of C1–C6 hydrocarbons in formation fluid by effectively calibrating mud-gas extraction efficiency at the rig site. In HPHT and other hostile downhole environments, these surface measurements may be the only viable option.

FLAIR Real-time Fluid Logging and Analysis Service
View All

Share This