Distributed Fiber Optic Sensing (DFOS) Intervention

From deployment through evaluation and assurance, Expro’s DFOS delivers complete well surveillance.

Advanced insights for improved decision-making

Expro’s Distributed Fiber Optic Sensing (DFOS) intervention enables the continuous and distributed acquisition of temperature and acoustic data along the length of your well. It features a straightforward thru-tubing deployment with a fibre optic-enabled slickline or e-line cable.   

Watch our SPE tech talk on the evolution of DFOS and its capabilities. 

 

 

Applications 

  • Gas lift surveillance and optimization 

  • Zonal contribution assessment 

  • Injectivity surveillance 

  • Pre-abandonment surveys 

  • Casing and completion integrity assurance 

  • Overburden assessment 

  • Behind casing flow detection 

  • Leak detection 

 

DFOS Benefits: Deployment, Evaluation, Assurance 

  • Operationally efficient thru-tubing intervention using a fiber optic-enabled slickline or e-line cable
  • Simultaneous deployment of logging tools enables efficient gathering of complementary data
  • Multi-drum intervention unit enables remediation activities after the DFOS survey
  • Integration with existing well intervention packages for a rapid deployment
  • Rapid data evaluation supported by on-site data processing and our global team of DFOS analysts
  • Quick look results within hours of the survey
  • Data driven decision making enables well production and well integrity assurance