Online Technical Library Selections
Optimizing Inhibitor Blends
Modeling Scale Inhibitor Dosages For Oilfield Operations
Developing Scale Inhibitor Dosage Models
The creators of DownHole SAT™ were pioneers in ultra-low dosages for water treatment. DownHole SAT brings that knowledge and expertise to the oil patch.
DownHole SAT transfers French Creek Software's revolutionary and elegant inhibitor modeling module to wells and mixture, putting to use models created from decades of field and laboratory data.
Water treatment personnel can input their own custom product formulations, then model appropriate dosages and limitations.
Click to enlarge. Click to close.
Product Formulation
French Creek products allow you to input your current proprietary inhibitor products or to formulate entirely new blends.
Build your product models using French Creek's dozens of generic and proprietary inhibitor models or using your own field & lab data.
The models provided by French Creek have been created with over 30 years of data and hands-on experience. They are used and battle tested on a daily basis by water treatment personnel around the world.
Users of Product Manager/ Formulator Edition and Laboratory Editions select and enter ratios for up to seven inhibitors.
About Inhibitor Modeling
Most of us use our own system for varying inhibitor treatment levels with water chemistry. Over the years we’ve developed our own rules of thumb.
For example,
• Most of use apply higher levels of inhibitors as temperature increases.
• Most of us increase dosage as the driving force for scale formation increases. Higher levelsof CaCO3 inhibitors are applied as the Langelier Saturation index or calcite saturation levelincrease.
• Many of us will feed higher inhibitor levels to a 72 hour holding time index system than to a3 hour residence time system. Scale inhibitor dosage levelsincrease with time.
• And finally, most of us will feed a slightly higher dosage in high pH systems. All other things being equal, dosages for scale inhibitors are applied as a function of a drivingforce for scale formation and growth (e.g. Calcite saturation level), temperature as it affects reaction rates, pH as it affects the dissociation state of the inhibitor, and time.
DownHole SAT premium editions allow you to develop mathematical models for the minimum effective scale inhibitor dosages a function of these parameters: driving force, temperature, pH and time. Mathematical models for inhibitors can be developed using the Laboratory version of DownHole SAT by editing water chemistry, temperature, and time data developed in the laboratory, through field experience, or both.
Acknowledgments Acumer is a trademark of the Rohm and Haas Company Aquatreat is a trademark of the ALCO Chemical Division of National Starch Bayhibit is a trademark of Bayer Belclene, Belcor, Belsol, and Belsperse are trademarks of BWA Water Additives Dequest is a trademark of Monsanto Chemical Company Goodrite is a trademark of the BFGoodrich Company Versa is a trademark of the National Starch and Chemical Company DownHole SAT and DownHole Rx are trademarks of French Creek Software
Copyright © 2010 French Creek Software, Inc.