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July 28, 2004. Core Laboratories, Pencor Division. Outline. Why is scale a problemInorganic scaleTypesCausesPredictionGeochemical modeling overviewNear Infrared spectrographyCase studies. July 28, 2004. Core Laboratories, Pencor Division. Problems Imposed by Unexpected Scale Onset. Scale is
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1. July 28, 2004 Core Laboratories, Pencor Division Geochemical Modeling of Inorganic Scale onsets: Is it useful ? Model Verification and Validation using HPHT and LTHP NIR Technology J. D. Lynn
Technical Specialist
Advanced Fluid Studies
Pencor Division
2. July 28, 2004 Core Laboratories, Pencor Division Outline Why is scale a problem
Inorganic scale
Types
Causes
Prediction
Geochemical modeling overview
Near Infrared spectrography
Case studies
3. July 28, 2004 Core Laboratories, Pencor Division Problems Imposed by Unexpected Scale Onset Scale is a consequence: Changes in Equilibrium States Temp, Pressure, Volumes Mixing of Incompatible Fluids Injection and influx Drilling, Stimulation, Completion and Workover fluids “Scale” is not vindictive It’s Formation Follows Well Defined Thermodynamic Laws The Laws Don’t Change Understanding the Laws as Applied to the Reservoir is Key