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Emerson Automation Solutions - ROSEMOUNT
Roxar subsea Sand monitor

Roxar subsea Sand monitor

Product catalog summary

Overview
The Roxar subsea Sand monitors are advanced, non-intrusive devices designed to measure real-time sand production in oil, gas, or multiphase pipeline flows using acoustic noise from sand particles. These monitors are compact, robust, and easily installed on the exterior of subsea production pipelines. Two models are available: ROV retrievable and Non-retrievable, both mounted in fixed pre-installed clamp assemblies.

Specifications

Interface Connectors: 1 connector, types include Omnitec MKII, Tronic, and ODI.
Electrical Interface: Options for 4, 7, or 12-way connections.
Cathodic Protection: Provided by client CP system.
Sealing Type: C-ring (Inconel 625-Silverplated) and O-ring (Nitrile Rubber NBR).
Operation Depth: Up to 3000 meters.
Design Temperature: -18°C to +70°C.
Pipe Surface Temperature: -40°C to +225°C.
Design Lifetime: 30 years.
Surface Protection: Xylan 1070, F4210 Yellow for detector; Xylan 1070, F1677 Orange for ROV handle.
Electronics: Dual system (redundant), 24 VDC ±6V, power consumption nominally <2-4W.
Communication: Modbus RTU – RS485 and Canbus SIIS Level 2.
Applicable Standards: ISO 13628-6, EN 10204/3.1, NORSOK M-501, M-630, M-650, NACE MR-0175 / ISO 15156, ISO 3506-1 / 3506-2.

General Specifications

Model: Roxar subsea Sand monitor (Model 03 / 04).
Technology: Acoustic.
Uncertainty: 5-10% depending on flow regime and calibration level.
Repeatability: ±1%.
Flow Velocity: Minimum 1 m/s.
Particle Detection Limit: In gas: > 15 μm; In liquid: > 15-25 μm.

Clamp Assembly Specifications

Dimensions: Funnel for ROV retrievable detector: OD378mm, H395mm; Tube fixture for non-retrievable detector: OD168mm, H411mm.
Dry Weight: 22 kg for both models.
Submerged Weight: 19 kg for both models.
Material Selection: UNS S31603 Stainless Steel.
Pipe Diameter: > 3” (any schedule).

Detector Specifications

Dimensions: ROV retrievable detector: OD126mm, H506mm; Non-retrievable detector: OD126mm, H416mm.
Dry Weight: 19 kg for both models.
Submerged Weight: 16 kg for both models.
Material Selection: UNS S31803 Duplex.

Contact Information
For further information, contact regional offices or email [email protected]. Visit www.roxar.com for more details.

Catalog excerpts

Real time sand monitoring for oil, gas or multiphase pipelines The Roxar subsea Sand monitors are intelligent non-intrusive devices that utilize the acoustic noise produced by sand particles to calculate real-time sand production in oil, gas or multiphase pipeline flows. The units are compact, robust and designed for easy installation on the outside of the subsea production pipe-work. Roxar offers two models; ROV retrievable and Non-retrievable, both mounted in fixed pre-installed clamps assemblies. Process Management

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General Specifications Model: • Roxar subsea Sand monitor (Model 03 / 04) Technology: • Acoustic Uncertainty: • 5-10% (depending on flow regime and calibration level) Repeatability: • ±1% (the sensors have a repeatability better than 1%, meaning the sensor signal will read the same values with less than 1% deviation for fixed noise reference signals generated by a calibrated noise generator. The reference signal levels range from zero reading to maximum sensor reading of 2 mill. (100nV). Flow velocity: • Minimum 1 m/s Particle detection limit: • In gas: >15 pm (depending on flow rate, viscosity...

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