Inorganic scale formation, prediction and inhibition continues to be a Tomson Technologies focus area. Scale formation has been a long term industry concern, with inorganic scale costing the oil and gas industry $2.0 billion per year in 2014. Tomson Technologies routinely performs journal publication level research and expert testing on various topics related to scale formation in oil and gas production.
State of the art technology is used to evaluate scale inhibitor performance under realistic field conditions while under strictly anoxic laboratory conditions (<< 1 ppb O2) across wide temperature and pressure ranges and realistic brine compositions.
Dynamic Scale Loop (DSL)
This is a test that is conducted to evaluate the kinetics of scale inhibition. Tomson has the capability to conduct DSL tests at temperature up to 250°C and pressure up to 24,000 psig. Tomson conducts DSL for our research goals and incorporates the results into our ScalePREDICT software to predict kinetics of scale inhibition.
Tomson also performs DSL as a testing component to evaluate client’s products under fit for purpose conditions. Dynamic tube blocking scale nucleation and inhibitor testing experiments can be performed for any protection time, temperature, pressure, inhibitor, and brine composition.
Laser Early-nucleation detection
Tomson Technologies has developed a novel laser early-nucleation detection method, which can be used to study scale inhibition. Long-term scale inhibition is studied as it applies to onsite water storage and transportation of produced water and fresh waters in the field. This method can be performed at temperature and specific brine conditions to evaluate scaling tendencies and inhibitor performance over weeks and months.
Scale inhibitor squeeze treatment
Scale inhibitor squeeze treatment can be simulated in the laboratory at reservoir temperature and pressure conditions, using either intact core or crushed core. Extensive modeling has been done on scale inhibitor squeeze performance and optimization methods are used to design the best squeeze for a specific field. Tomson can monitor core permeability during inhibitor injection and flowback to determine reservoir damage as a result of the injected fluid. The inhibitor return concentration is measured to predict the treatment lifetime.
HPHT Scale Solubility
Tomson Technologies has extensively studied and modeled numerous scale species at high temperature, high pressure and realistic brine conditions, including calcite (calcium carbonate CaCO3), Barite (barium sulfate BaSO4), Halite (sodium chloride NaCl), Siderite (iron carbonate FeCO3), Iron sulfide (FeSx(1to2)), Magnetite (iron oxide Fe3O4) and others. The research results are incorporated into ScalePREDICT for accurate prediction of the thermodynamics and kinetics of scale formation at temperature and pressure.
Tomson has created a proprietary software package, ScalePREDICT, to predict thermodynamics and kinetics of scale formation at temperature and pressure. ScalePREDICT is entirely web based and can communicate seamlessly with the client’s existing database to use the data to predict scale formation and calculate the needed inhibitor type and concentration to prevent scale formation. ScalePREDICT can be instrumental in decision making in the field and laboratory experimental design.