Water Filtration Technologies
WFS deploys a comprehensive portfolio of proven and emerging water treatment technologies, selecting and integrating the right combination to solve each unique oilfield water challenge.
Regulatory Compliance
Technologies selected to meet or exceed discharge and reuse standards worldwide.
Energy Efficiency
Energy recovery and low-pressure designs to minimize operating costs.
Water Recovery
Maximizing beneficial reuse through staged treatment trains.
Global Applicability
Systems engineered for arctic tundra to Middle Eastern desert environments.
Core Treatment Technologies
Explore how each technology works, its performance characteristics, and optimal oilfield applications.
Reverse Osmosis
Ultra-Pure Water from High-Salinity Brines
RO is the gold-standard technology for desalinating high-TDS oilfield produced water and formation brines. Hydraulic pressure above osmotic pressure allows only water molecules through the membrane while rejecting dissolved salts, organics, and micro-contaminants at >99%.
Ultrafiltration / Microfiltration
Absolute Barrier Filtration for Bacteria & Colloids
UF (0.02 µm) and MF (0.1–0.2 µm) hollow-fiber membrane systems provide an absolute physical barrier to suspended solids, bacteria, protozoa, and colloids. Essential pre-treatment for downstream RO and standalone polishing for injection or discharge water.
Dissolved Air Flotation
High-Rate Oil & SS Removal by Micro-Bubble Flotation
Highly effective clarification for removing dispersed oil, suspended solids, and biological material. Microbubbles generated by dissolved air attach to contaminant particles, causing them to float for skimming removal.
Zero Liquid Discharge
Total Water Recovery — Eliminate Disposal Costs
ZLD converts even the most concentrated oilfield brines into recovered distillate water and dry solids, with no liquid waste stream requiring disposal. Eliminates dependence on Class II injection wells and addresses stringent discharge regulations.
Ion Exchange & Softening
Precision Removal of Scale-Forming Ions
Functional resin beads selectively capture calcium, magnesium, barium, sulfate, and radium from produced water and injection streams — critical for preventing scale in wellbore tubulars, production equipment, and surface facilities.
Electrocoagulation
Chemical-Free Coagulation by Electrolysis
Applies a direct electrical current through sacrificial metal electrodes (iron or aluminum) — generating coagulant ions in-situ and precipitating colloidal contaminants without chemical addition. Ideal for remote sites with chemical supply constraints.
Technology Comparison
A quick-reference guide to help identify the most appropriate technology for your application.
| Technology | TDS Removal | Turbidity | Oil Removal | Energy Use | Best For |
|---|---|---|---|---|---|
| Reverse Osmosis | 99%+ | 99% | High | High | High-TDS Desalination |
| Ultrafiltration | Low | 99.9% | Medium | Low | RO Pre-treatment |
| DAF | Low | 97% | Very High | Low-Med | Oil & SS Removal |
| ZLD Evaporation | 99.9%+ | 99.9% | Total | High | Zero Discharge |
| Ion Exchange | Selective | Low | Low | Low | Scale Ion Removal |
| Electrocoagulation | Low | 94% | High | Medium | Remote Treatment |
Technology Innovation & R&D
WFS operates a dedicated 12,000 sq ft water technology laboratory in Houston staffed by PhD engineers and chemists. Our research focuses on next-generation oilfield water treatment challenges, from PFAS removal to advanced oxidation and forward osmosis.
- ▸Advanced Oxidation Process (AOP) development for emerging contaminants
- ▸Forward Osmosis (FO) research for ultra-low energy desalination
- ▸Graphene oxide membrane development for nanofiltration
- ▸Machine learning optimization of chemical dosing regimes
- ▸Modular solar-powered treatment systems for off-grid sites
Technology Integration Framework
Stage 1 — Primary Separation
3-Phase Separator · API Gravity Separator · Hydrocyclone
Stage 2 — Secondary Clarification
DAF System · Induced Gas Flotation · Coagulation/Flocculation
Stage 3 — Polishing Filtration
Multimedia Filter · Cartridge Filter · Ultrafiltration
Stage 4 — Advanced Treatment
Reverse Osmosis · Ion Exchange · ZLD Evaporation
Let Us Design Your Treatment Train
Share your water analysis data and flow requirements — our engineers will propose the optimal technology combination for your specific application.