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Permanent Downhole Gauges
Reservoir monitoring and control with downhole pressure and temperature data
Improve reservoir production or injection control decisions for oil and gas wells to enhance ultimate recovery
Enhance the performance of your wells with gauges that incorporate the most recent innovations in transducers, fully welded assemblies, corrosion-resistant alloys, and robust electronic components. By monitoring your wells and reservoirs in real time, you’ll identify trends without having to conduct costly, risky, and time-consuming well interventions.
Extended reliability
Survivability >20 years at rated temperature
Digital telemetry
Electromagnetic noise immunity and greater communication flexibility
Metrology assurance
Calibration at SLB manufacturing center for superior performance
Metris systems—not yesterday’s downhole gauges
Our permanent downhole gauge technology has evolved from transmit-only devices providing pressure and temperature (PT) measurements at fixed time intervals into interactive systems that enable users to actuate a wide range of downhole completion equipment by using just one electric and two hydraulic lines.
Gauges belonging to the family of Metris™ permanent monitoring systems use a single acquisition and diagnostics card that employs frequency division multiple access (FDMA) telemetry—also used by cellular telephones—for bidirectional communication to accommodate dynamic conditions. The card and telemetry combination enables
- acquisition of PT measurements
- immunity from any electromagnetic noise (e.g., from an ESP or other AC-powered devices)
- deployment of more gauges on one monoconductor cable
- elimination of limitations on distance between gauges
- selective hydraulic actuation
- prognostic health monitoring (PHM) of subsurface safety valve actuation
- gauge, connector, cable, and acquisition system diagnostics.
Metris systems are a key component of intelligent completion systems, which maximize flexibility, simplify well design, increase reservoir control using downhole interval control valves, and reduce installation time and complexity. Intelligent gauges are the future, and the future is now.
Metris™ permanent monitoring system gauges are available with various pressure and temperature ratings to suit your application.
Applications
Leverage proven reliability and metrology for a wide range of applications.
Pressure transient analysis
Reservoir diagnostics: Permeability, formation damage, drainage, interference
Pressure decline evaluation
Reservoir volumetric analysis: Reserves estimate, decline curve analysis, layer communication or reservoir crossflow
Multipoint pressure measurements
Production diagnostics: Real-time downhole fluid density measurements, water and gas breakthrough, slugging, crossflow and flow rates for production allocation and management
Reservoir pressure control
Reservoir drawdown management: Wellbore cleanup optimization, flow above bubblepoint or dewpoint, fines migration and sand management
Pressure interference
Reservoir connectivity: Reservoir compartmentalization via interference tests, optimization of infill well placement and injection strategy
Stimulation pressure diagnostics
Well performance analysis: Frac efficiency monitoring, acid diversion evaluation
Reservoir simulation model calibration
Reservoir dynamics update: Use of downhole pressures for history-matching to improve and validate reservoir models
Artificial lift optimization
Fluid level control: Flowing bottomhole pressure monitoring, pump cavitation elimination, artificial lift system performance evaluation
Intelligent completion monitoring
Zonal production management: Tubing and annulus pressure diagnostics to optimize zonal production and delay water and gas breakthrough
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