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The deposition of insoluble inorganic minerals is commonly referred to as scale. Common oilfield scales include:

  • Calcium Carbonate (calcite)
  • Sodium Chloride (halite)
  • Iron Carbonate (siderite)
  • Iron Sulfide (troilite)

These mineral deposits are found on wellbore tubulars and components. This occurs when the saturation of produced water is affected by changing temperature and pressure conditions in the perforations, liners and downhole equipment. The deposits can quickly block tubulars and stop production.

Scale is often found along with other common coincidental skin damage mechanisms:

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News Flash

EnovaSB - Sand Bond

On February 6th, Enova executed the first EnovaSB insitu sand control treatment for a major operator in the San Joaquin Valley.  The application was operationally successful and well response is being closely monitored.