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Subsea Injection Flow Metering
Seastream
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Gas Lift / Gas Injection
Seastream Water Injection Gas Lift / Gas Injection MEG Injection
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Information Key to Design
Measurement Accuracy Water Injection / MEG Injection Flow Rate - Turndown Density Gas Lift / Gas Injection Gas Composition Pressure & Temperature
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Design Considerations
Mechanical Connection Process Electrical Design Envelope Straight Lengths Upstream Downstream
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Electrical Connectors
Diver Mateable Stab Plate ROV Connector Fly-to-Place EFL
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Water Injection Seastream Designs
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Shallow Water Design
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Structure Installation
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Jumper Horizontal Installation
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Jumper Vertical Installation
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Gas Lift Seastream Designs
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Gas Lift Designs
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Gas Lift Designs
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MEG Injection Seastream Designs
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MEG Injection
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MEG Injection Flow Computer P P DP PT Venturi Flow
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ROV Fly to Place Seastream Designs
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Fly to Place Sensors For Water injection applications we have developed an ROV retrievable DP sensor. For Gas lift and Wet Gas application we have reservations about using this technology due to the increased risk of hydrates. However for liquid applications it’s a neat solution. Here is an example of fly to place in operation.
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Communications Subsea Designs
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Communications Subsea Protocol Options
Analogue (4-20mA) Digital – More Diagnostics Modbus Canbus SIIS Level II Compliant Hi-Speed
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Simulator SEASTREAM™ Since the introduction of digital communications we now have the ability to interrogate the flowmeter sensors for the purpose of acquiring diagnostic information. At the same time it is possible to change transmitter settings and re-zero transmitters, Which for a subsea flowmeter with a field life of 25 years can help to maintain its accuracy.
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Metering Option SEASTREAM FloCalculator
1. Since the introduction of digital communications we now have the ability to interrogate the flowmeter sensors for the purpose of acquiring diagnostic information. 2. At the same time it is possible to change transmitter settings and re-zero transmitters, 3. Which for a subsea flowmeter with a field life of 25 years can help to maintain its accuracy. 4. Density Calculation / Discharge Coefficient 5. Second Generation to include an uncertainty calculation to indicate accuracy of flow meter.
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