Challenge
Current methods for measuring flowrate out include using flow paddles or Coriolis flowmeters. Flow paddles have low accuracy, while Coriolis flowmeters are expensive, require significant space on the rig, and need heavy maintenance.
Invention
Our new patented solution offers a breakthrough in the measurement of flowrate out, addressing the shortcomings of existing methods.
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Illustration of the flowmeter. The innovation includes sensors for measuring cuttings rate, cutting size distribution, and gas content making it a multi-measurement device requested by the drilling industry for decades.
Value
The improved accuracy of flowrate measurement will enhance well control with respect to kick and loss. This higher accuracy supports improved process control and automation, leading to more efficient and safer drilling operations.
Status
We have successfully tested the proof of concept with a small-scale prototype. The accuracy of our solution has been verified under realistic operational conditions, including the use of non-Newtonian drilling fluids with cuttings particles.
The concept has proven effective in small-scale setups (maximum capacity ~100 L/min) with real drilling fluids, achieving an uncertainty below 5% for moderate rates and down to 1% for higher rates.
Next steps
To verify the solution under operational conditions and larger capacities, we will:
- Design a robust prototype, incorporating structural analysis and the selection of suitable materials and equipment (motor and sensors).
- Build the prototype and conduct tests in operational conditions with various drilling fluids and rates up to 5,000 L/min.
- Explore additional verification topics, including heave, direct density measurements, cuttings size distribution, and preparation for EX-certification.
Possible commercialization options
The patent for this innovation is owned by NORCE. We prefer to commercialize the solution through an independent company, making it accessible to different service companies and rig owners.