WILSA™ EWC Enhances Oil Recovery at North Texas Waterflood WILSA™ technology improves the efficiency of existing separation equipment, reducing oil in water reinjected into waterflood formation

www.wilsa.com 8/2014

Date: Nov 2013 - Jan 2014

Industry: Oil &Gas Production

Application: Waterflood

Success Factors: § Increased oil recovery § Less oil in recovered water § No impact on production § Easy installation into existing

piping scheme § Low power requirements

WILSA EWC Results: § Improved efficiency of

3-phase separator by 62% § Lowered oil content of water

reinjected into the formation from 300ppm to <50ppm

An operator in North Texas was processing production fluid comprising 99.6% water / 0.4% oil through an undersized 3-phase knockout unit. Water injected into the waterflood formation had an oil content of >300 ppm.

A solution was required to improve oil/water separation and reduce the amount of oil-in-water injected back into the formation.

A WILSA™ ElectroWave Conditioner (EWC) G3 was installed upstream of the 3-phase separator processing an average of 8,700 bbl./day. Retention time of production fluid flowing through the separator was approximately 15 minutes.

Chemical treatment was limited to a scale inhibitor injected immediately upstream of the separator.

Produced water separated by the knockout unit was directed to water collection tanks. Trace amounts of oil in the water discharged from the knockout unit accumulated in the tanks, and was either skimmed off or injected into the formation.

After the in-line installation of the WILSA™ EWC upstream of the separator, more oil was recovered from the production fluid and cleaner water was injected back into the waterflood formation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

www.wilsa.com 8/2014

3. OUTCOME

WILSA™ conditioning resulted in a greater percentage oil separated from the production fluid, and cleaner water injected into the waterflood formation

1. CHALLENGE

An operator processing production fluid with an extremely high water cut was re-injecting >300 ppm of oil into the waterflood formation

2. SOLUTION

WILSA’s EWC G3 was installed upstream of the 3-phase knockout unit to improve the efficiency of oil/water separation)

4. VALUE

In-­‐line  installation  of  a  WILSATM  EWC  G3  immediately  upstream  of  the  oil/water  separator  resulted  in  a  62%  increase  in  the  efficiency  of  the  3-­‐phase  knockout  unit;  furthermore,  water  injected  back  into  the  waterflood  had  <50  ppm  oil  content,  an  84%  improvement  from  the  initial  300  ppm  oil-­‐in-­‐water  value  

  WILSA™ EWC G3 The WILSA™ ElectroWave Conditioner (EWC) G3 accelerates phase separation. By altering the interfacial tension of fluids, it weakens intermolecular binding forces to disrupt oil/water emulsions.

APPLICATIONS  

§ Improved oil/water separation at variable flow conditions

§ Enhanced settling of suspended solids  For  more  information,  please  contact:  

WILSA  Holdings,  LLC  5303  Glenmont,  Suite  D  Houston,  TX  77081  (713)  425-­‐6785  

Skid  Size  

Total  Weight  

Pipe  Size  

Pipe  Length  

Pipe  Connections  

Electrical  Connections  

 

*Connections  can  be  changed  to  hammer  unions,  flanges  or  other  fittings  

 

SPECIFICATIONS  (WILSATM  EWC  G3)  

90”L  x  30”W  x  30”H  

3,780  lbs  

2”  -­‐  4”  SCH  80  (ASME/ANSI  B36.10)  

8  ft.  

4”  Victaulic  Groove*  

115  VAC  (30  amps)