Carbo Ceramics

The STIMPRO matrix acidizing design and analysis software enables the design, simulation and analysis of acid injection treatments below the fracture initiation pressure. It is an easy-to-use Windows-based, fully-integrated acidizing software effective for both carbonate and sandstone formations. In carbonates, an acidizing treatment is designed to dissolve the matrix, thus forming new channels (wormholes) that bypass damaged zones and provide clear flow. In sandstone, acidizing emphasizes dissolving particles that clog existing pore channels rather than creating new ones.


  • Complete matrix acid design, simulation and scheduling
  • Online graphics and reports include interface for production forecasting/ matching and economic analysis
  • Real-time pressure data matching
  • Transient pressure and skin calculation
  • Comprehensive acid/additive database
  • Preloaded libraries of stimulation fluids, lithologies and formations
  • Paccaloni plots for treatment monitoring
  • Foam and filter cake modeling and scheduling


  • Helps ensure effectiveness of stimulation design
  • Provides real-time analysis to allow re-design of stimulation program at any point in well life
  • Delivers continual monitoring of treatment effectiveness
  • Helps increase production flow and reduces treatment costs
  • Provides access to candidate stimulation fluids and acid/additives
  • Enables precise carbonate acidizing and wormhole modeling
  • Aids in enhancing future stimulation programs
Practical utilization of actual treatment data is easy and can be utilized during or after the job. The advantage of using actual field data is that the user gains a better understanding of the well’s response to stimulation, helping facilitate the optimization of future treatments.

The STIMPRO system features advanced software technology and a multi-tasking architecture that provides the user with a responsive and flexible interface. The results can be displayed while the model runs in the background, giving the ability to produce reports and plots as the job is being executed. In addition to the skin evolution generated by the STIMPRO acidizing models, the software also has the unique capacity to continually monitor and characterize the ever-changing skin factor while the job is being executed. This is accomplished via the transient pressure analysis theory using a Paccaloni plot.

Operating modes

Acidizing Design mode produces treatment designs to mitigate any combination of these four damage types:
  • Emulsions and wettability change
  • Asphaltene and paraffin deposition
  • Perforation and gravel pack damage
  • Deep wellbore damage
After the user selects any or all of the four damage types, STIMPRO software generates an appropriate pump schedule for an effective treatment.

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