NGM Series
NGM Series Multiphase Flow Meter
A full-bore, non-intrusive multiphase flow meter that measures oil, gas, water and sand continuously at 96% accuracy, across the full 0 to 100% gas mass fraction range.
4
phases measured
96%
measurement accuracy
0–100%
gas mass fraction range
0
moving parts
What it does.
One instrument in the production line. No test separator, no routing manifold, no waiting for phases to settle, no interruption to production.
The NGM Series sits directly in the production line and resolves the full composition of the flow without separating it first. There is no test separator, no routing manifold, no waiting for phases to settle and no interruption to production. The meter reads continuously and reports continuously.
Because the bore is full and nothing protrudes into the flow, there is no pressure drop penalty beyond the Venturi itself, no internals to erode in sand-bearing service, and no moving parts to wear.
How the meter works
Two measurements, four answers.
A Venturi section gives total mass flow from the pressure drop across the throat. A measurement section reads the absorption spectrum across the flow to give the mass fraction of each phase. Together: four separate flow rates, updating continuously.
Scene 1 / 6
Mixed flow enters
Oil, gas, water and sand enter the meter as a single mixed stream. Nothing separates it and nothing protrudes into the flow.
Designed for continuous duty.
The engineering decisions that keep the measurement right for years, not weeks.
No moving parts
Nothing in the instrument wears, jams or needs lubrication. Nothing to service between calibrations.
01 / 04Full-bore and non-intrusive
Nothing protrudes into the flow path, no bypass and no sampling. What flows through the line is what is measured.
02 / 04Continuous self-checks
The meter validates its own reading continuously and flags drift long before it reaches your numbers.
03 / 04Annual calibration cycle
Standard industry calibration once a year rather than frequent re-verification visits.
04 / 04Nothing in the flow path, nothing to service between calibrations, and a measurement that checks itself. That is what continuous duty looks like.
Key features.
Full four-phase measurement
Oil, gas, water and solids resolved independently and continuously.
96% measurement accuracy
Across all four phases, sustained across the operating range.
Full GVF range
Valid from 0 to 100% gas mass fraction, so the same meter stays correct as the well changes.
Continuous sand detection
Solids measured as a phase, not inferred, with onset visible as it happens.
Non-intrusive and full-bore
Nothing in the flow path to erode, foul or restrict.
Self-checking measurement
Reading absorption at several energies gives more equations than unknowns, so the solver validates itself.
Annual calibration cycle
Standard industry calibration once a year rather than frequent re-verification.
Compact and integrated
Sensing, acquisition and computation in one assembly, sized for per-well skid mounting.
Specifications.
Only confirmed values are published. Further specifications are added as they are confirmed for each line size.
Measurement
- Phases measured
- Oil, gas, water, solids
- Phase flow rate accuracy
- 96%
- Gas mass fraction range
- 0 to 100%
- Sand detection
- Continuous
Design
- Flow path
- Full bore, non-intrusive
- Moving parts
- None
- Mounting orientation
- Vertical, flow upward
Calibration
- Calibration interval
- Annual, industry standard
Installation configurations.
permanent
Permanent, two production lines
Full manifold installation with a meter per well across two lines.
Best for: Multi-well pads
permanent
Permanent, single production line
Single-header installation, meter per well.
Best for: Single-header pads
skid
Skid-mounted, per well
Self-contained skid for individual wellhead installation.
Best for: Individual wellheads
field
Field installations
Deployed units in service.
Specify it against your wells.
Send us your conditions and our engineers will come back with a specified configuration rather than a brochure.