Enhanced oil recovery companies.

Dow Inc.

EOR chemistry and field programmes — see the company's energy solutions page.

BASF

• Oman

  Aspiro™ S High Salinity Carbonate Field Pilot

  Deployed Aspiro™ S surfactants in extreme high-salinity, high-temperature (HSHT) reservoir conditions to alter rock wettability. Achieved absolute phase stability at 180,000 ppm TDS and delivered significant incremental oil recovery gains over baseline waterflooding.

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• Argentina

  Major Mature Oilfield Revival Project

  Commissioned five robust, remotely operated modular polymer dissolution units using high molecular weight HPAM polymer. The system minimises mechanical degradation during field hydration, maximising chemical efficiency to lift oil recovery rates and extend reservoir life.

• United States

  Yates Field / Goldsmith Pilot

  Tested custom Aspiro™ surfactant packages via a Single-Well Injection-Soak-Produce (ISP) methodology to treat oil-wet matrix blocks. Shifted rock wettability to induce spontaneous brine imbibition, driving a 2–5× increase in localised well oil production rate post-soak.

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Veolia Water Technologies

• United States

  San Ardo Field Commercial Water Reclamation (Chevron)

  First-ever installation of OPUS® technology treating 150,000 bpd of 200°F produced water; reduced total dissolved solids by 92% and boron below 0.64 ppm, allowing 75,000 bpd for steam EOR and 50,000 bpd for surface discharge.

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• Qatar

  Pearl GTL Complex Zero Liquid Discharge (Shell)

  Recycles 45,000 m³/day of highly fouled water. Achieves 100% water recovery, feeding high-purity utility and boiler water back into the complex with zero liquid effluent discharged.

• Brazil

  Petrobras P-84 & P-85 FPSOs (Santos Basin)

  Pre-salt FPSOs processing 225,000 bpd of oil required high-volume seawater injection. The technology stripped harmful sulfates and ions from injection water, protecting the reservoir from souring and scaling, extending subsea infrastructure life and enhancing offshore recovery.

• United States

  Produced Water Circular Economy (OPUS Pilot)

  OPUS® technology treated 200°F produced water (6,500 ppm TDS, silica, boron, free oil) achieving 75% water recovery, dropping TDS to under 510 ppm and boron under 0.64 ppm. The clean effluent safely recharged a drought-stricken local aquifer.

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SNF

• United Kingdom

  Captain Field Interwell Pilot (Chevron)

  Continuous horizontal platform polymer injection delivered an unambiguous reservoir response with sharp oil production acceleration, while demonstrating a 35% CO₂ intensity reduction by minimising high-emission offshore water handling cycles.

Hunting plc

• United Kingdom

  North Sea Offshore Field Pilot

  Mature offshore North Sea field treated with the Organic Oil Recovery (OOR) process. A custom nutrient package selectively activated the resident microbial ecology already present in the reservoir, dramatically improving mobility of oil trapped to the oil-bearing rock.

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• United States

  Southern California Mature Waterflood

  Microbial treatment surged the primary producing well from 20 BOPD to over 80 BOPD (a 300% increase). Offset producers recorded a sustained 30% rise in total oil rate at peak response.

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• Oman

  South Oman Clastic Sandstone (Field A & B)

  Five treatments in Field A and two in Field B. Field A achieved a 15–25% production increase post-pilot, ultimately surging 60–75% above projected decline. Field B recorded a 19% increase after injection one, 50% after injection two. Sustained 6–15% absolute reduction in water cut.

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• United States

  Pine Mills Field Pilot (Battery 3)

  Targeted a highly mature waterflood with 80–90% water cuts. Custom nutrient formulation activated resident oleophilic microbes — drove a 100% production uplift (doubling baseline oil cuts to ~30 bbl/d) and dropped water cut from 80% to 0% immediately following treatment.

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SLB

EOR chemistry and field programmes — see the company's energy solutions page.

Halliburton

EOR chemistry and field programmes — see the company's energy solutions page.

Baker Hughes

EOR chemistry and field programmes — see the company's energy solutions page.