ScaleChem

Scale problems arise in high rate gas wells for the same basic reason that they occur in waterflood operations: produced brines become supersaturated with mineral scales as a result of changing conditions between the reservoir and the point of deposition.

A complicating factor in the assessment of these scale problems is that significant changes in the brine composition may occur between the reservoir and the surface conditions, due to the exchange of water between the liquid and vapor phases.

Thus, scaling tendencies that are important at downhole conditions may not be evident based on the produced brine composition.

The ScaleChem program estimates scale formation under CO2 and waterflood conditions. ScaleChem can be used to evaluate stimulation compatibility amongst formation waters.