Scale Formation Process.
Types of common oilfield scales.
Scale Prediction.
Scale Prevention
Mechanisms of scale inhibition.
Threshold inhibitors and sequestration.
Phosphates and phosphonates.
Polycarboxylates.
Selectivity of inhibitors.
Formulation. Liquid and Solid products.
Evaluation of Inhibitors
Static performance tests.
Dynamic tube blocking.
Laboratory coreflood tests.
Compatibility and other non-performance tests.
Application of Inhibitors
Topside application of scale inhibitors.
Squeeze options.
Monitoring.
Scale Removal
Chemical and non-chemical removal of scale deposits.
Carbonate and Sulphate scales.
Acid based products.
Sequestrant based products.
Enhanced sulphate dissolvers.
Application of Scale Dissolvers
Near wellbore stimulation.
High temperature application problems.
Radioactivity in scales.