Vx Spectra

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2 Deploys

Continuous multiphase flow metering in all well conditions

Page last modified
February 22 2024

The Vx Spectra surface multiphase flowmeter is a compact and lightweight flow metering system that provides continuous, accurate measurement of multiphase fluid streams. It utilizes proprietary sensor technology and advanced computational algorithms to determine flow rates and phase fractions of oil, gas and water without requiring physical separation. With no moving parts, the Vx Spectra system has a small footprint and requires minimal maintenance. By replacing traditional separators, it eliminates methane venting used to actuate control valves, reducing emissions by up to 99.8%. The real-time well production data enables optimisation of hydrocarbon processing and assurance of on-spec production, supporting zero flaring operations.


  • Surface well testing (onshore or offshore)
  • Continuous production monitoring
  • Fiscal allocation and custody transfer
  • Well performance evaluation
  • Artificial lift system surveillance

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Pros & Limitations
Repeatable, accurate flow rate measurements over long durations, unaffected by foam or emulsion
Real-time 24 /7 monitoring for rapid production optimization
Reduced footprint versus bulk tanks or separator
Reduced field development costs
Simplified wellsite architecture and maintenance
No separation required (reduces flaring)
Enablement of unmanned metering operations
Contains a nuclear source
Specification Title Specification Description
Venturi size
19-88 mm
Sour, as per NACE MR0175 and ISO 15156
Max. working pressure
5000 psi [34.5 MPa]
Design temperature
-50 to 250 degF [-46 to 121 degC]
Water/liquid ratio
0 to 100%
Gas volume fraction
0 to 100%
Liquid viscosity at line conditions
0.1 to 2000 cP
Max. liquid flow capacity
4000 to 100,000 bbl/d [635 to 15,898 m3/d] (depending on venturi size)
Max. gas flow rate at 10 MPa
11 to 250 MMscf/d (depending on venturi size)
550 to 1170 lbs [250 to 530 kg]
Power consumption
20 W


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Technology Readiness Level


Development Technology demonstration Mature / Proven
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SLB is a global technology company. New identity focuses on energy innovation and decarbonization to address the world’s energy needs today and to forge the road ahead for the energy transition.
SLB (NYSE: SLB) is a global technology company that drives energy innovation for a balanced planet. With a global footprint in more than 100 countries and employees representing almost twice as many nationalities, we work each day to decarbonize oil and gas and develop scalable new energy technologies to accelerate the energy transition. Find out more at slb.com.

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