The Mirmorax Multiphase Sampling System delivers true volumetric sampling on oil, gas and water in the well without interrupting production.
The result is the ability to accurately capture fluid properties throughout the lifetime of the field, conduct comprehensive PVT (Pressure, Volume, and Temperature) analysis, calibrate multiphase and wet gas meters to ensure that they operate at their full potential. This again leads to increased oil & gas recovery from the reservoir.
The Mirmorax Multiphase Sampling system is based on a patented technology that ensures true volumetric representation of each phase, independent of the content in the flow. This is of significant value for the operator, not only for multiphase or Wet Gas representation, but also for analysis of other chemicals or substances in the flow, such as H2S and Salinity. The system design is based on standard engineering principles, and is a combination of innovation and field proven technologies, such as the pneumatic actuators, pre-qualified OEM ball valves and system for testing pressure integrity.
Mirmorax supplies different subsea and topside versions of the multiphase sampling system. We offer both a manually operated system with a single sampling bottle, and automated systems with a multi-bottle system integrated into a ROV-retrievable module, skid or container. Please contact us for more details.
The sampling system extracts and transports the sample into sampling bottles under isobaric conditions. The bottles provide valuable on-site instant feedback about Water Liquid Rate (WLR) as well as a Gas Void Fraction (GVF). The sampling bottle may then be transported to the PVT lab for detailed compositional analysis. For high accuracy of PVT analysis, a volumetric representative sample is important for getting correct density of oil and water, as well as for the component analysis.
The result is a seamless process from sample collection to final topside analysis – from extracting a representative sample and then storing and transporting it to the laboratory facility. All this takes place while maintaining the sample at its original pressure condition all the way through to the lab.
Mirmorax is continuously developing its technology and service areas.
Many of these involve a lot of internal testing and analysis before we can go public. We will however share some initiatives with you, and we encourage you to give us feedback. Please check this page regularly for news in the near future.
Our staff is a good mix of experienced, innovative and strong minded people, and innovation is an essential part of the Mirmorax culture. On several occasions we have been awarded for our ideas and our innovations, both on an individual basis and as a company. Mirmorax was awarded the Polyteknisk Forening (Polytechnical society) Innovation Price in 2010, and was nominated by ONS Innovation awards the same year for the patent technology of our Subsea Multiphase Sampling system.
Mirmorax's new Oil in Water Analyzer has features that measure properties of the produced water that usually influences the core measurements of oil and sand concentration.
By measuring salinity and temperature we can compensate for these effects, thus providing accurate and stable measurements despite rapid changes.
The actual monitor consists of a field unit and a probe that can be fitted on all pipe dimensions. The Mirmorax Oil-in-water (OiW) monitor includes high performance electronics and advanced signal processing with all components suitable for operation in hazardous areas.
Being an "inline" instrument, the monitor can provide direct measurements at the dispersed and suspended phase with more detailed information on the size distribution and concentration of oil and sand in water. Errors related to side-branching are eliminated when measuring directly in the main produced water pipe. The monitor caters for concentrations of 0 – 1000 + parts per million (ppm), and can provide complete size distributions ranging from two to three micrometers.
The monitor is superior to traditional optical based monitoring solutions that can’t "sound penetrate" material. The ultrasonic energy will penetrate layers of oil film or scaling, and perform accurate monitoring by transmitting signals into the produced water flow.
Mirmorax acquired the Roxar Oil-in-water (OiW) product line in March 2011. This included an agreement to secure all Intellectual Property (IP) rights for the product with Dutch technology company TNO Science and Industry. TNO was part of the original Joint Industry Project (JIP) with Roxar in developing the monitor along with Statoil, Eni SpA, Shell and PetroleumDevelopmentOman (PDO). Mirmorax is committed to drive development of the technology and related services even further, and to provide market-leading solutions for Oil-in-Water Monitoring both topside and subsea.
With operators facing increased threats to flow assurance from hydrates, the injection of chemical inhibitors, such as Methanol and Ethylene Glycol (MEG) and low dose hydrate inhibitors (LDHIs), has never been more popular.
Such inhibitors are playing a key role in combating scaling and corrosion, with chemicals often used to break up surface tension and facilitate the flow of oil & gas.
At the same time, operators also need to establish greater control over the measuring and injection of hydrate inhibitors to ensure that the correct amount is injected, and that injection rates are changed when conditions change.
Having information on how these chemicals propagate from an injection well into other wells will provide operators with a better understanding of their reservoirs, and enable them to optimize their injection programs.
Mirmorax Topside Sampling provides comprehensive and accurate volumetric samples that can then be subjected to chemical analysis. The system provides a seamless process from extracting a representative sample, bringing it to the surface, and then storing and transporting it to the laboratory facility, all within the same pressure conditions. The specific content fraction of the sample will also provide an accurate influx value in the timeframe the sample was taken.
Multiphase and wet gas meters today provide crucial real-time information on the capabilities on a well during production.
As well as being valuable day-to-day operational tools, the meters are key elements of long-term field development plans, ensuring improved ultimate recovery over the lifetime of the field.
One of the major challenges with multiphase meters today, however, is ensuring that they continue to operate at peak performance as flow and process conditions change, and as the verification of input data becomes both cumbersome to obtain and unreliable. In addition to this, calibration of the meter often requires production to be stopped, costing the operator potentially hundreds of thousands of dollars.
The Mirmorax Multiphase Sampling System delivers true volumetric sampling of oil, gas and water in the well. This information can be directly compared to metering fractional data to provide highest accuracy and calibration. In addition, the sampling system also provides high quality samples that can be used to obtain good PVT analysis, salinity and chemical content. These are all vital input for making sure that your metering investments deliver real value over the lifetime of the field.
The calibration process consists of three main phases, where the sample volumetric fractions will provide a calibration point at the state of the flow present when the sample was taken. This represents the correct calibration based on a given oil, gas and water fraction. To maintain this accuracy, the parameter files of the multiphase meter need to be updated with the correct PVT data as well as the values for salinity etc. This will match the surface curve describing the dynamic behavior of the metering system to the real values. For verification of correct dynamics response, and to determine confidence interval for the measurements, additional three samples are taken at different conditions and compared to the corresponding values of the metering system.
Topside Multiphase Sampling and calibration of meters ensure that a meter installed on a well at the start-up of production is providing accurate estimates of oil, gas and water ten years later – even when the produced fluids in the field have changed.
The increase in produced water has led to stricter environmental requirements for water discharge, with the accurate monitoring of overboard water discharge essential.
The Mirmorax Oil-in-water (OiW) monitor provides accurate information on the size, distribution and concentration of oil and sand in water, thereby ensuring that all environmental requirements are met.
The size and distribution of the spectrum of oil particles also provides the operator with valuable information on the efficiency of the separation and filtering systems, and how these can be used to optimize water purity. Furthermore, by ensuring that the water purity is of the highest standard, the water can be used in other areas such as in irrigation and agriculture close to the oil production or processing facility.
The increased maturity of many fields, and the need to optimize production, has led many operators to use reinjection of water to maintain field pressures.
This has led to a corresponding increase in water volumes to be treated in process facilities.
Along with these developments comes a greater need to monitor and control the re-injection process – especially oil and sand particle size – to ensure high pressures and recovery rates and longer lifetime for the field. Certain types of oil, either alone or in combination with fine sand particles, for example, can easily clog up an injection well in a relatively short time.
The Mirmorax Oil-in-water (OiW) monitor improves the monitoring and control over the re-injection process by providing the operator full control over both the concentration and size distribution of the oil and sand that is re-injected. The result is an optimized re-injection process and improved oil & gas recovery.