1Company Overview – January 2009

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Company Overview:• INTEVRAS Technologies LLC - developer of a patented suite of innovative

technologies for water purification, remediation and process improvement

INTEVRAS offers two patented technologies:• INTEGRA : Automated Disk Filtration System• EVRAS : Evaporative Reduction and Solidification System

• Commercial Stage - Intevras is now in commercial stage of the technology. Deliverables to date:

– Patents issued and additional pending– Manufacturing agreement in place with several units in production– Opportunity identified in compressor inter-cooling for natural gas

compression

• Experienced Management– Decades of experience in oil and gas, water treatment, independent

power, and food processing industries.

• Corporate – Texas LLC, headquartered in Austin, TX

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EVRAS - Patented Evaporation System

Demo unit

Commercial unit

The EVRAS evaporative reduction and solidification system is a

patented technology which utilizes low grade waste heat to concentrate

and/or crystallize waste water streams.

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Solutions for Intevras Customers

The EVRAS system solves multiple problems at once:

• Increases gas flow while maintaining horsepower through the removal of inter-stage gas heat from compressors.

• Reduces compressor overheating through the removal of heat from engine jacket water.

• Decreases the number of trucks required at a site by reducing the overall volume of the waste stream.

• Provides increased “Green” revenues for producer and boosts the producers’ “Green Image”.

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EVRAS: Cooling Benefits to Compressor OperationsCompressor benefits from lower cooling temperatures• Engine power reduction is not necessary• Gas Staged Compressor throughput is increased

EVRAS + Production Brine = Enhanced Compressor Cooling = Continuous Full Power + Higher Gas Throughput= Increased “Green” Revenues for the Producer

EVRAS Marcellus Shale: Mid Pennsylvania

Intercooling Delta Temp

0

5

10

15

20

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Jan Feb March April May June July Aug Sept Oct Nov Dec

Month

Deg

F

13.2o13.1o

15.0o

16.2o

19.5o

17.4o 17.5o

16.8o 16.7o

15.3o

14.1o

12.7o

Thermal Source: 4 Cat 3606 @ 1675 net hpSource: Compression and Engine JW, AC3 Stage, 100x900 psi, 80F InletTotal Evap Air: 440kcfm, 4 Modules2007 Annual Metrology

10/20/08jjh

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Gas Flow Increase by Lowering Compressor Inter-stage Temperature

Unit CAT 3516 TALE -130F Unit CAT 3516 TALE -70F

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Economics of Compressor Efficiency

Sample Field Compressor Efficiency

• Typical Caterpillar 3516TALE is loading 1,100 gas Hp– (additional 60 Hp is used for auxiliary loads)

• Additional produced gas from inter-stage cooling is 9%

• The previous graph @ 130ºF shows a volume at Ps 39 of 5.61 MMCFD

• The previous graph @ 70ºF shows a volume at Ps 39 of 6.07 MMCFD

Volume increase converted to $/year

• 6.07 MMCFD @ $7.00 per MCFD = $15,508,000 per year

• 5.61 MMCFD @ $7.00 per MCFD = $14,333,000 per year

Additional Revenue = $1,176,000 per year

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EVRAS Process Overview

• Uses natural evaporation- function of , water temperature, surface area,

ambient conditions and air flow.

• Utilizes low-grade waste heat to heat brine. (eg: from compressors)

• Eliminates scaling and fouling through a patented, direct-contact,

floating-bed (DCFB) heat transfer process.

• Enhances the evaporation process through deployment of a patented

undulating film/membrane technology.

• Has potential to provide improved compressor performance and/or

increased gas throughput.

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EVRAS Value Proposition

•Insensitive to elevated TDS

•Enhances compressor performance by drawing waste heat from jacket water

and/or inter-stage cooling.

•Concentrates waste streams up to 90%, with full crystallization option if desired

•Eliminates scaling and fouling, minimizing downtime and maintenance expenses

•Process driven by waste heat

•Process occurs at low temperature and atmospheric pressure

•Guaranteed mechanical availability factor of 90% and above

•Instrumented for unmanned operation

•Modular Design

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EVRAS - Oilfield Solutions

EVRAS as a solution for Produced Water Issues

• Salt (High TDS)– Competitors face scaling on membranes– Most competitors won’t work with high TDS

• EVRAS reduces the number of trucks through volumetric reduction of produced water

• Many areas lack disposal wells in the vicinity or with adequate capacityto meet disposal demands. EVRAS provides a local solution.

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The EVRAS process is similar to that employed in cooling tower technology.

Dry Airflow Dry Airflow

Humid Airflow

He

at

Exc

ha

ng

er

Cool to Plant

Hot From PlantHot to Cooling Tower

Cool from

Cooling Tower Circulating Pump

Packing or Fill

Sump

Fresh Water In

Concentrated Water Out

The EVRAS process evaporates and concentrates water at low temperatures. Evaporation occurs at the direct contact point between air and warmed water.

The EVRAS Solution

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The EVRAS Process Schematic

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ConventionalAftercoolerAir Radiator

ConventionalFirst StageAir Radiator

ConventionalTurbo-coolerAir Radiator

ConventionalJacket WaterAir Radiator

ConventionalExhaust Heat

Discharge

CompressorSection of

Plant

EngineSection of

Plant

Compressor Plant

Waste HeatRecovery

Skid

Waste HeatRecovery

Skid

Feed Brine4292 Bwpd(3695 Bwpd

if crystallizer)

Brine EvaporatorModule

evap@1851 Bwpd

Brine EvaporatorModule

evap@1844 Bwpd

Brine Evaporation Plant

ConcentrateTank

597 Bwpd

CompressionWaste Heat

EngineWaste Heat

Sales Gas=158.61mmcfdSales Gas=153.94mmcfd

Suction Gas

950 psi 200 psi

Salt Storage18 yd/day

or

EVRAS: Piceance Compressor Block Diagram

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DCFB Heat Exchange Process

Features of the DCFB (Direct Contact Floating Bed) heat exchange

process include:

• Patented technology

•Employs proprietary heat transfer fluid that is immiscible with water and

has no solubility for scale-forming minerals

•Liquid-to-liquid heat exchange process employs no solid surfaces to

scale or foul

•Polymer spheres in DCFB tank maximize heat exchange by increasing

surface area.

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DCFB Heat Exchanger

The EVRAS system utilizes a patented direct contact (fluid to fluid) floating bed (DCFB) heat exchange process to eliminate problems associated with fouling and/or scaling of heat transfer surfaces.

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Undulating Film Evaporative Surface

Features of the Undulating Film Evaporative Surface include:

• Patented technology

•Maximizes surface area for contact between water and induced air flow

to optimize evaporation.

• Co-current, top-down air and water flow optimizes evaporation

• Evaporation surface equates to a one (1) acre evaporation pit, with

a footprint 53X smaller.

•Undulating motion generates vibration sufficient to dislodge salt crystals

that may form on the membrane surface.

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Induced AirflowPast MembraneEvaporates AqueousPhase and GeneratesFilm Vibration

Solution DistributedOver Membrane

Membranous Film

Concentrated Brinewith Solids Entrained

Solids ResidueSaturated Brine Return to Evaporator

Warmed Brine

EVRAS Undulating FilmEvaporative Surface

Undulating Film Evaporative Surface

Water evaporates from the brine films flowing down the plastic sheets. Salts precipitating from the down-flowing, evaporating brine collect on the surface of the plastic sheets.

Airflow-induced, flag-like undulations of the sheets shake the salt precipitates loose to fall into a collection sump below

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EVRAS- Potential Markets

The EVRAS evaporative reduction and solidification system was developed as an outgrowth of volumetric reduction in the following industries. The technology can be used in a multitude of other industries and applications

• Landfill Leachate

• De-icing Fluid Recycling

• Chemical Production

• Food Processing

• Power Generation

• Oil & Gas Industry

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Automated Disk Filtration

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INTEGRA – Patented Disk Filtration

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INTEGRA Technology Benefits

•Corrosion and chemical resistant

•Smallest equipment footprint in class

• Modular design allows staged filtration and expansion

capability

• 3 - 200 micron filtration ratings

•Low back-flush volume

•No pumps required for pneumatic back-flush

•Explosion proof

•Automatic self-cleaning operation

•Designed for the toughest industrial filtration needs

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The INTEGRA Process SchematicFigure 7: In Filtration Mode

feed-waterDirty

External 2-wayflush valve (closed)

to ProcessFiltrate

Filter plenum

Filtrate plenum

Reaction plenum

Filtrate blockvalve (open)

Tension rod spring

Reaction plunger withfiltrate immersed seals

Air release outlet

Reaction air orifices

Sparger tubeopen ends

Filtrate fills the reactionplenum via weepage fromthe flush nozzles into thesparger tubes

disk stack via springDisk cap compresses the

tension on the tension rod

Dirty feed-water inlet

Filtrate outlet

Seal lubrication port

Figure 8: In Flushing Mode

flush valve (closed)External 2-way

Filter plenum

Filtrate plenum

Compressed air charge

upward by high pressureReaction plunger driven

High energy compressed air Reaction plenum

Dirty

inletfeed-water

Tension rod springadditionally compressed

drives filtrate downwardCompressed air charge

in reaction plenum andupward in the sparger tubes

entrains in the rising filtratevia the the reaction air orifices

with high energy air conveyedHigh pressure filtrate entrained

within the sparger tubes

within the reaction plenum

Collected solids

High pressure filtrate jets, entrained with compressedair, blast across the freefloating disks; scouringthem clean

flushed to discharge

Disk cap forcedupward by the spargertubes block the dirtyfeed-water inlet closed

tubes blocks the filtrate

Filtrate block forcedupward by the sparger

port closed

Waste flush outlet

Compressed air inlet

Seal lubrication port

FILTRATION MODE FLUSH MODE

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INTEGRA Process Overview

• The INTEGRA filter employs contacting surface topology as the basis of

filtration. Tortuous flow induced between contacting surfaces creates filtration.

• The filtration surfaces are thin, textured plastic, ring-like disks. Disks are

compressed into a stack for filtration.

• Disk stacks collect solids upon

the contacting disk surfaces.

• As the flow rate falls and/or the

pressure differential rises,

compressed air flushes solids from

the disk surfaces.

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INTEGRA Value Proposition

Cost Effective Technology via:

•Durable disk materials (tolerant of hydrocarbons & most acids)

•Improved reliability and lower cost of operations through decreased

maintenance requirements.

•Reduced back-flush volume and chemical usage reduces disposal

needs.

•Modular design maximizes process flexibility.

•Automated control system requires minimal manning requirements.

•Warranted to be free of design and manufacturing defects.

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