WILSA Reduces Chemical Usage in East Texas Legacy Field
WILSA® technology breaks oil-water emulsion, increases the performance of original separation equipment and eliminates decades-long demulsifier program
Date: January 2015
Industry: Oil & Gas Production
Application: Chemical Reduction
Success Factors:
- Reduced demulsifier usage
- Cleaner water injected in disposal well
- Ease of installation into existing piping system
WILSA® EWC Results:
- Eliminated demulsifier at all wells and central facility
- Lowered oil in disposed water from 19 ppm to 6 ppm
- Increased efficiency of original separation equipment to 99.4%
An East Texas operator’s field has experienced fluid separation problems for over six decades, caused by heavily emulsified production fluids. Achieving efficient oil-water separation became even more difficult when submersible pumps were installed to increase production rates.
As a result, the operator injected a common demulsifier at all of the field’s 9 wells, as well as at its central facility (processing around 20,000 bpd). Without chemical treatment, the facility’s 3-phase separator lacked the retention time needed to effectively separate the 26° API oil forming a consistent rag layer of emulsified oil and water.
In addition to eliminating all demulsifying chemicals from the field, utilizing the WILSA® EWC increased the efficiency of the operator’s separation equipment to 99.5% and improved oil skimming from the water tank, lowering the oil in disposed water from 19 ppm to 4 ppm.