Resman tracer technologies
Seeing is believing.
Flow is invisible. Tracers make it measurable.
Resman tracer technologies from SLB bring clarity to the subsurface by tracking fluid movement across the reservoir—proving production inflow, interwell connectivity, and stimulation effectiveness with unmatched resolution and reliability.
These tracer signals feed directly into digital workflows and reservoir models—delivering insights that accelerate decision-making and optimize long-term production and recovery.
Why tracers?
How do you measure flow—on its own terms?
Tracer-based workflows offer a passive, precise, and proven way to characterize flow dynamics in the reservoir and wellbore. Operators traditionally face fundamental challenges in subsurface characterization:
- Limited access to the sandface in producers—especially with ESPs, subsea wells, or multilateral junctions
- No physical access to the reservoir itself
- Historically low sensitivity and resolution in subsurface monitoring data
- Difficulty interpreting large, complex tracer datasets without digital tools
SLB removes the barriers to well and reservoir flow surveillance visibility—end to end
Tracer technologies provide the only direct measurement of mass transport available in the industry. These systems are wireless, passive, and intervention-free—delivering reliable signals under true reservoir conditions.
But tracers are just the beginning. The value comes from the full experience:
- Organic and polymer chemistry for precision control
- Industry’s largest tracer library, including >200 unique signatures
- Ultimate sensitivity—parts-per-trillion detection and beyond
- Tracer Track™ visualization solution
- Seamless integration with SLB's broader surveillance portfolio, including OptiFlow™ reservoir, well, and network solutions
Together, these components form a complete well and reservoir surveillance solution—from molecule to model.
Resman tracer technologies enables a range of tracer-based services designed to address specific flow monitoring challenges across production, reservoir management, and stimulation workflows for oil and gas, geothermal and CCS applications.
Wireless inflow profiling throughout the life of the well
Production tracers are embedded in the lower completion and released over time to reveal zonal inflow distribution. These tracers deliver a passive time-series record of zonal inflow—captured without intervention, even in wells where other surveillance is not feasible.
- Monitor zonal inflow for collection of history matching data and efficient intervention planning in challenging completions, including ICDs, AICDs, ESP wells, intelligent or multilateral systems
- Quantify contribution from individual zones over time to optimize artificial lift or well performance
- Extend inflow tracking beyond the reach of fiber or conventional logging—especially in subsea or retrofit wells
Prove fluid pathways and interwell connectivity
Injected into the reservoir through an injector well, these tracers travel with the fluid and are later detected at production wells. Their arrival confirms connected pathways, reservoir sweep, and residual oil saturation—enabling evidence-based reservoir modeling.
Use cases:
- Injector-to-producer connectivity
- EOR efficiency and sweep assessment
- Reservoir simulation calibration and history matching
Quantify stimulation effectiveness during flowback and early production
Resman™ stimulation tracers simplify how operators evaluate the effectiveness of hydraulic fracturing and acidizing treatments. Deployed stage-by-stage or zone-by-zone, these tracers reveal how fluids move through the reservoir and return to surface—delivering actionable insights on fracture-driven interactions, stage contribution, and stimulation cleanup efficiency, all without production disruption.
Use cases:
- Log stage- and cluster-level production without intervention
- Assess stimulation fluid cleanup, durability, and connectivity
- Diagnose fracture-driven interactions across offset and infill wells
- Quantify contribution from each zone to identify underperformance
- Monitor flow paths, sweep complexity, and zonal recover
- Enable smarter re-fracturing and stimulation optimization decisions
Transforming tracer signals into reservoir intelligence—at scale
The Tracer Track™ visualization solution turns direct tracer measurements into actionable flow insights—making subsurface behavior visible and understandable across assets. Hosted securely on Microsoft Azure and accessible globally or via in-country deployment, Tracer Track solution empowers both technical users and decision-makers to interpret surveillance data quickly and clearly.
Use cases:
- Monitor zonal production inflow over time
- Visualize injector-to-producer flow paths and connections
- Estimate sweep volumes and validate stimulation effectiveness
- Track survey coverage and survey scheduling across a field
- Access heat maps and flow behavior summaries without manual data processing
Thermal-stable tracers for reservoir flow insight in high-temperature geothermal systems
Resman™ geothermal tracers are engineered for durability and precision in geothermal environments—including both conventional hydrothermal and enhanced geothermal systems (EGS). These tracers withstand temperatures up to 330 °C [626 °F], providing dependable flow intelligence to fine-tune injection strategies, validate fracture efficiency, and monitor reservoir connectivity over time.
Use cases:
- Measure residence time of injected fluids to optimize injection and recovery
- Monitor circulation and cleanup efficiency in EGS reservoirs
- Map fracture-driven interactions and evaluate zonal connectivity
- Verify sweep effectiveness and identify flow pathways
- Provide early warning of cold-water breakthrough
- Assess scale treatment efficiency over time
- Generate a quantitative production log (QPL) without intervention
Fingerprint injected CO₂ for evidence-based monitoring and model calibration
Resman™ CCS tracers are engineered for high-sensitivity, nonintrusive monitoring of carbon storage sites—providing direct evidence of CO₂ transport, plume behavior, and long-term storage integrity. With detection limits as low as 100 parts per quadrillion (ppq), these tracers deliver unrivaled visibility to support regulatory compliance, investment confidence, and public assurance.
Use cases:
- Analyze reservoir behavior before, during, and after CO₂ injection
- Confirm storage containment and monitor plume migration in real time
- Identify potential leakage paths or breakthrough channels
- Distinguish between naturally occurring and injected CO₂
- Add tracer data to support seismic, pressure, or model-based MMV strategies
Seeing is Believing—And Now You Can See Like Never Before
From deepwater injectors to shale horizontals, from complex brownfields to new developments—Resman tracer technologies give you the reservoir visibility you’ve been missing. The signal is real. And the time to act is now.
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