Methanol analysis: Fast, accurate, portable analysis of produced fluids
OMMICA is a low cost alternative to GC for methanol detection on crude oil, condensate, water, and gas
Page last modified
April 11 2024
The OMMICA MeOH analysis consists of a simple, highly accurate, portable colourimetric test to determine methanol in crude oil and water.
Accuracy is gained by addition of accurately measured reagents to a sample. This is then reacted at a specific time and temperature, to control the reaction and the resultant colour gives the level of methanol.
Absorbance of the reacted sample colour is measured using a colourimeter to give an accuracy of +/- 1ppm.
The analysis has been developed to be as accurate as gas chromatography, but allow on-site testing to take place in the field or offshore, through use of portable equipment.
Pros & Limitations
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Significant cost savings on traditional analysis methods
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Designed to be easy for non-specialist users to use well
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As accurate as Gas Chromatography
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Designed to be used on- and off-shore
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Water extraction of oil not required before analysis of oil samples
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OMMICA is not an ASTM method, however it correlates well with the standard ASTM method using GC
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The OMMICA method may require a couple of hours training for optimum results (can be provided).
Specification
| Specification Title | Specification Description |
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Areas of application
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FPSO, custody transfer, oil storage tanks, pipeline monitoring, restart after well shut-down
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Accuracy
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+/- 2 ppm
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Range (standard)
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1 to 750 ppm (oil), 20 to 1500 ppm (water)
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Range (extended)
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Up to 10% (oil), up to 80% (water)
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Detection threshold
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< 1 ppm in oil, < 10 ppm in water, < 10 ppm in gas
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Efficiency
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Up to 100 samples/day possible
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Cost reduction
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Low set-up cost compared with GC. Low ongoing OPEX
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Deployment
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Can be effectively used by non-specialists
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Training
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Dedicated YouTube training videos channel, summary videos on website, in-person training can be provided if required
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Quality
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3rd party testing confirms equivalence with ASTM method (GC) (Major analytical contractor)
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Operational impact
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No need to wait for samples to be helicoptered back onshore to a lab, and for a third party to analyse samples, before decisions can be made
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Versatility
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Suitable for use on or offshore. Only requires 1 m2 (or less) of working space. Robust equipment.
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Mature / Proven
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