A Montey Case Study

Globally approximately 250 million barrels of water are
produced from oil and gas production.

Produced Water - A Montney Region Case Study

BACKGROUND & CHALLENGES

When drilling for oil and gas, produced water surfaces as a waste product along with the fossil fuels. Produced Water contains a variety of environmentally hazardous pollutants including heavy metals, bacteria, oils and grease, and various chemical additives. For produced water to be discharged, these pollutants must be disposed of prior to the oil refinery process. Although treatment is necessary, produced water is difficult as it is associated with excessive disposal, treatment, and chemical costs. Produced water also causes long-term operational problems including heavy sludge production and poor oil-water separation. Conventional membrane filtration systems are both ineffective and expensive for treating produced water.

PROJECT DETAILS

Problem

  • Underperforming oil removal filter system
  • High TSS, oil content, iron & bacteria, leading to high OPEX costs for chemical treatment
  • ESG pressures and freshwater scarcity and sustainability

Project Specifics

  • Average treatment volume: 150 to 750 bbl/d
  • Project duration – 4 months
  • System configuration, Pre-Treatment + Swirltex UF System

PROJECT GOALS

For this client, the ideal solution required: 

  • Effective filtration of oilfield produced water, primarily for solids and oil removal 
  • Consistent membrane permeate flux production of 100 LMH minimally
  • Effective removal of key contaminants TSS < 50mg/L Oil < 5mg/L  Iron < 10mg/L Bacteria < 15mg/L      

SWIRLTEX PROCESS

A chemical treatment step before membrane ultrafiltration is conducted to assist in the removal of solids and other contaminants to prevent membrane fouling and increase permeate production rate. Standard jar testing was performed until a chemical treatment package was optimized for the application; a 4-gallon sample was then prepared with newly optimized chemical dosages, mixed, and decanted.

The decanted/treated sample is then fed through Swirltex’s proprietary ultrafiltration technology for further purification of the sample. Swirltex then operates under their standard process parameters that have been carefully fine-tuned to minimize energy consumption while increasing permeate flux. Flux is collected in 10-minute intervals for 1 to 3 hours, depending on client requirements. Permeate is collected and sent for analysis at a third-party laboratory to ensure quality specs are met.

BENCH VALUE & FULL-SCALE SYSTEM 

  • Elimination of 20,000km per day with the reduction of 140 trucks per day and of travel associated. Water that can now be re-used rather than disposed of, equating to a GHG reduction of approximately 8,000 tones of CO2e/yr
  • Significant downhole disposal saving and reduced impact on seismic activity concerns
  • Chemical cost reduction and OPEX savings of $60-$100K per well pad
  • Savings on pond cleanup, dredging, and de-sludging cost ($1M annually)
  • Well production increases with clean saline water vs fresh water
  • Up to a 75% reduction in freshwater consumption, thus saving an average of 357,000 m3 of freshwater per year
  • Industry-leading, sustainable energy resource producer­, ESG impact with sustainability goals.
  • Full-scale Swirltex system installation Q2/Q3 2022, 20,000 bbl/d (3,000 m3/day)

Swirltex Permeate

Raw  Feed                                                                      

OUR  RESULTS

Oil producers face challenges in removing TSS, iron, and oil, however, the Swirltex system shows exemplary results with minimal of 97% efficiency rate. The Swirltex technology helps oil and gas companies reclaim wastewater and accomplish their sustainability objectives. With low energy consumption and operational costs, the Swirltex system exceeds expectations in the wastewater solutions industry.

Our innovative technology is successfully treated as per the client’s needs. We were able to remove solids, iron, and oil  with 760 flux production. 

Do you want to see exemplary results with wastewater filtration? Contact us for more information or queries.