Dualstream 3 Wet Gas and Water Fraction Analyzer
| Origin | UK |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Dualstream 3 |
| Pricing | Available Upon Request |
Overview
The Dualstream 3 Wet Gas and Water Fraction Analyzer is a field-proven, non-intrusive multiphase flow measurement system engineered for real-time, high-fidelity quantification of gas, water, and hydrocarbon liquid fractions in upstream oil and gas production streams. Developed by Solartron ISA — a UK-based engineering firm with over three decades of expertise in wet gas metrology — the Dualstream 3 integrates a precision dual-path Venturi flow element with a proprietary multi-path ultrasonic sensor array to simultaneously resolve mass and volumetric flow rates of each phase without radioactive sources, moving parts, or process interruption. Its operational principle relies on time-of-flight (TOF) ultrasonic transit time differentials across multiple chordal paths, combined with differential pressure profiling across the Venturi throat, enabling robust phase fraction derivation under highly transient, low-liquid-fraction, or high-velocity conditions typical of gas wells, wet gas pipelines, and early-life condensate producers.
Key Features
- Non-intrusive, clamp-on or flanged multi-path ultrasonic water fraction sensor — no probes, no dead volume, no erosion-prone internals
- Dualstream Venturi primary element certified to ISO 5167-4 for differential pressure-based gas flow measurement
- Real-time, continuous output of gas velocity, water cut (% vol), liquid holdup, and total liquid flow rate (oil + water)
- Operational range: 0.1–100% water cut; compatible with gas velocities up to 40 m/s and liquid loading up to 1000 bbl/MMscf
- ATEX/IECEx-certified for Zone 1 hazardous area installation; SIL 2 capable per IEC 61508
- Zero radioactive source requirement — eliminates regulatory licensing, transport restrictions, and decommissioning liabilities
- Plug-and-play mechanical integration with standard API 6A/6D flange interfaces; minimal straight-pipe requirements (5D upstream / 2D downstream)
Sample Compatibility & Compliance
The Dualstream 3 is validated for use in natural gas, associated gas, and retrograde condensate streams containing entrained water droplets, mist, or slug flow — including high-H2S and CO2-rich environments when configured with appropriate material grades (e.g., ASTM A182 F22, duplex stainless steel). It complies with key industry standards including API RP 14E (erosion control), ISO 10790 (multiphase flow metering), and EN 61326-1 (EMC for industrial instrumentation). Data integrity meets ALARP principles for custody transfer pre-qualification and supports traceability under ISO/IEC 17025-accredited laboratory protocols. The system architecture is designed for long-term stability in remote, unmanned wellhead sites — with operating temperature range –40 °C to +85 °C and IP66/NEMA 4X enclosure rating.
Software & Data Management
The Dualstream 3 interfaces via Modbus TCP or HART 7 to distributed control systems (DCS), SCADA, or cloud-based production monitoring platforms. Its embedded firmware includes adaptive signal processing algorithms trained on field data from >300 installations across North Sea, Gulf of Mexico, and Middle East assets. All measurements are timestamped with microsecond resolution and support full audit trail logging compliant with FDA 21 CFR Part 11 and ISO 15143-2 (automated reporting for production accounting). Optional Solartron ISA FlowManager™ software provides real-time visualization of phase profiles, historical trend analysis, water breakthrough detection alerts, and automated reconciliation against separator test data — all exportable in CSV, XML, or OPC UA formats for integration into reservoir simulation workflows (e.g., Eclipse, CMG).
Applications
- Real-time water cut monitoring for early water breakthrough detection in gas reservoirs
- Custody transfer allocation at manifold headers where separation is uneconomical or technically infeasible
- Reservoir management support via continuous liquid loading assessment in high-GOR wells
- Inhibitor injection optimization using dynamic water fraction feedback loops
- Production forecasting validation and decline curve analysis using high-frequency phase-specific flow data
- Regulatory compliance reporting for emissions monitoring (e.g., methane slip, fugitive water discharge)
FAQ
Does the Dualstream 3 require radioactive sources or nuclear licensing?
No. It uses multi-path ultrasonic time-of-flight and differential pressure sensing — fully exempt from IAEA, NRC, or national radiation safety regulations.
Can it operate reliably in high-sand or high-corrosion gas streams?
Yes — when specified with abrasion-resistant cladding (e.g., tungsten carbide coating) and corrosion-resistant wetted materials per NACE MR0175/ISO 15156.
Is calibration traceable to national standards?
Yes — factory calibration is performed against UKAS-accredited multiphase flow loops, with optional on-site verification using portable Coriolis provers per ISO 12213-5.
What is the minimum required straight pipe length for installation?
5 pipe diameters upstream and 2 pipe diameters downstream of the Venturi section — significantly less than conventional orifice or turbine-based solutions.
How does it handle slugging or intermittent flow regimes?
Its multi-path ultrasonic architecture captures instantaneous chordal velocity profiles across the pipe cross-section, enabling robust holdup estimation even during transient slugs or stratified flow — validated per ISO/TR 15143-1 Annex C.
