SERVICES

Crude Oil Enhanced Recovery (EOR)

In today's oil production, increasing oil reservoir pressure can be achieved by water injection, acid gas injection or both.

Acid gas from a sweetening facility that contains 85% CO2 and 15% Water + Methane gas are circulated and injected at high pressure back into the oil reservoir. Acid gas makeup of roughly 5-8 % of total EOR obtained from gas sweetening system can replace the portion of the EOR gas that is lost in the reservoir and dissolved in the produced oil.

EOR injection rate is estimated based on unit displacement efficiency and practically ranges between 230 - 280 std m3 gas/barrel oil.

Water injection into oil reservoir will always require filtration and biociding, de-oxygenation before injection.

The high pressure, high flow water injection pumps are placed near to the de-oxygenation tower and boosting pumps. They fill the bottom of the reservoir with the filtered water to push the oil towards the wells like a piston. The result of the injection is not quick; it needs time. Water injection is used to prevent low pressure in the reservoir. The water replaces the oil that has been taken, keeping the production rate and the pressure the same over the long term. For example, if the water injection is stopped for a day, the production rate is not changed, unlike with gas lifts. Gas lifts are the opposite; if the injection is interrupted, the production will stop immediately because the gas lifts have only a short term effect.

Heavy Oil Production, Treatment and Upgrade

From well pad, emulsion gathering systems, and steam distribution to oil treatment and steam generation, we provide engineering support and troubleshooting to systems including; emulsion/steam heat exchangers, water-oil separation, diluent injection, oil treatment, produce water treatment, and boiler feedwater.

Also, we provide engineering support and design work related to surface mining operation (extraction and froth treatment).

Our Design Knowledge Encompasses the Following SAGD Critical Areas:

• PAD Design
• Emulsion Gathering System
• Seam Distribution to Injector and Wedge Walls
• Emulsion/Boiler Water Heat Exchange
• Water Knockout Drum
• Diluent Selection & Injection System
• Oil Treaters
• Produced Water Treatment
• Boiler Feed Water and Steam Generation
• Hot & Cold Glycol System
• Fuel Gas System
• Diluent Recovery Unit (DRU)

Our Design Knowledge Encompasses the Following Surface Mining Areas:

Gas Plant Design

From upstream gas gathering, phase separation, dehydration and sweetening modules to condensate and natural gas liquid processing, we at ATRA Engineering Inc. provide clients worldwide with quality design , installation and safe operation of liquefied natural gas (LNG) and natural gas liquid (NGL) recovery facilities, including loading and off-loading platforms.

Railcar Offloading and Storage Terminal

Tank Railcar is an efficient system for carrying heavy loads over long distances. One rail car can carry 110 tonnes, about four times what a truck can carry. Canada's rail freight industry is made up of two major companies, Canadian National Railways and Canadian Pacific Railway Company, and some 50 smaller ones

Shipping crude and heavy oil via railcars became quicker and cheaper than pipelines, with only a 12-14 days' trip from Alberta to Texas. One train, consisting of 120 railcars, can transport 72,000 barrels of oil in one trip, and 4 (four) rail tracks can support shipping capacity up to 300,000 barrels �per day.

ATRA Engineering Inc (AEI) is experienced in design and expansion of large crude terminals (loading/offloading and storage).

Our Design Knowledge Encompasses the Following Critical Areas:

• Track Layout
• Railcar Steam Flow & Heating Time Calculations
• Railcar Cooling Water Flow Calculation
• Loading & Offloading Station Design
• Control System Design
• Heat Trace Requirements
• Hot Bitumen Storage Tank Primary and Secondary Seal System

Water Treatment for Municipalities, SAGD and Surface Mining

We provide expertise in water treatment and conservation for municipalities and commercial ventures, from turbidity removal to water balance and ion balance. ATRA Engineering Inc. provide clients worldwide with R&D, design, installation and efficient operation, for communities, SAGD, Surface mining and black oil enhance recovery

Our Expertise Is Highly Valuable in the Following Areas:

• Turbidity & Suspended Solids Monitoring and Removal
• Water Analysis Includes total Alkalinity, total Hardness, total Organic Carbon (TOC), Dissolved Organic Carbon (DOC), total Dissolved Solids (TDS), total Suspended Solids (TSS), Algae (number and species),Ultraviolet Absorbance at 254 Nanometers (UVA254), total Coliform, and Heterotrophic Plate Counts (HPC)
• Microbial Analysis and Removal of Giardia lamblia Cysts, and Cryptosporidium Parvum Oocysts
• PH Control & Chemical injection (Coagulation & Flocculation, Sodium Bisulfite, Antiscalant)
• Selection of Multi Media vs. Ultra Filtration
• Water Balance
• Produced Water Treatment for SAGD Operations; Mechanical Vapour Compression Evaporator with Mixed Bed Ion Exchange Polishing and Drum Boiler
• Produced Water Treatment for SAGD Operations; Warm Lime Softening with Filtration, Ion Exchange Softening, Once-Through Steam Generators and High and Low Pressure Steam Separators
• Selection of HLS vs. WLS Softeners
• Sludge Removal
• Research & Development and Implementation of New Technologies

Our Test & Design Is Based on the Following Standards:

Economic Feasibility and Business Planning:

Our Services Include the Following:

R&D, Bitumen Soft Cracking and Water Treatment

Our continued R&D program is aimed at lowering bitumen viscosity and increase API gravity using soft cracking of bitumen and hydrogen saturation without the need for thermal or solvent mixing processes, hence providing very attractive cost savings to bitumen upgrading and transport.

ATRA Engineering Inc. Is Actively Involved in Research and Developing in the Following Areas:

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