Our Technology

GERI’s Direct Contact Steam Generation (DCSG) co-injector unit combusts
pressurized air and natural gas in direct contact with water, resulting in a
single product stream of steam or hot water, combined with flue gases.

Steam and flue gases are then injected downhole, simultaneously heating
and
re-pressurizing the oil reservoir.

GERI’s technology can steam non-thermally cased and cemented wells by
protecting
the annulus with patent-pending Annular Cooling Loop technology.

GERI’s co-injector unit can generate two distinct products delivered
either continuously or intermittently:

• Heat rate of 10.5 GJ/hr
• Steam rate of 100 m3/d (CWE*) at 240°C and 80% steam quality
• Non-condensable flue gas injection
  of 60 e3m3/d
• Wellhead injection pressures up to 6.1 MPa

• Heat rate of 5.2 GJ/Hr
• Hot produced water rate of 430 m3/d at 85°C
• Optional non-condensable flue
  gas injection rate between 0 and 28 e³m³/d
• Wellhead injection pressures up
  to 6.1 MPa

• Field-proven results of a Steam
  Oil Ratio (SOR) as low as 0.6,
  and 300% more heavy oil production from the baseline

• Emits up to 67% less greenhouse gases than conventional
  Once-Through Steam Generation (OTSG)^** by injecting exhaust
  gases downhole rather than venting to atmosphere.
• Uses less than half the fresh water when generating steam,
  compared to conventional OTSG^**.
• Completely eliminates freshwater usage when utilizing produced
  water for hot water (with flue gas) generation.
• Limits ground disturbance and energy/resource intensive drilling
  and construction by using existing wellbores and wellsites.

• Uses portable modules as opposed to costly permanent
  infrastructure.
• Minimizes lengthy environmental and land-use applications by
  using existing well leases.
• Significantly reduces water procurement costs when generating
  hot water using produced water.
• Reduces feed-water treatment costs (when generating steam)
  due to a higher tolerance for total dissolved solids (TDS) and
  particulates.