VAOS
V A L U E A D D E D O I L F I E L D S E R V I C E S
Value Added Oilfield Services
Bringing Value to the Energy Industry
VAOS’ aim is to be a one-stop shop for it’s customers and covers all disciplines such as civil, mechanical, electrical, instrumentation and environmental engineering, piping, insulation, coating, fire fighting systems, plant maintenance, hot tapping works and non-man entry automated hydro carbon recovery and tank cleaning services.
Our project references clearly portray a wide range of completed jobs covering a wide range of disciplines like revamping refineries and building of storage tanks.
(Drilling for water wells and cathodic protection are on-hold until further notice)
Production Enhancement and Flow Assurance (PEFA)
VAOS well stimulation is a process of enhancing hydrocarbons production from its reservoir to surface as in many oilfield/gas fields, including wells and pipelines the production decline is a neverending topic - especially for production engineers and well service teams.
The dominant reason will be to increase the production rate (hydrocarbon / gas) or even in some case is to reactivate idle wells in brown fields.
Unlock the full potential of your hydrocarbon reservoir with our expert stimulation solutions. Our state-of-the-art processes are designed to enhance production by repairing any formation damage caused by skins, such as scale, wax, emulsion, hydrate, paraffin, and inorganic materials.
Our matrix stimulation techniques are tailored to both sandstone and carbonate reservoirs, improving the flow path of hydrocarbons by removing any plugs or depositions that narrow the path.
Meanwhile, our unique solutions are focused on carbonate reservoirs, increasing permeability and creating uniform wormholes with overpressure, allowing for the best possible flow of hydrocarbons.
An experienced team of engineers is dedicated to providing tailored solutions to each unique reservoir, ensuring maximum production and efficiency. With our cutting-edge technology and years of expertise, we are the go-to solution for all your stimulation needs.
Contact us today to learn more about how we can help you unlock the full potential of your hydrocarbon reservoir.
New Installations: Pipeline & Storage Tanks
VAOS designs, fabricates and installs all types of pipe work, tanks and structural steelworks ranging from individual components to complete processing systems. In 26 years of experience, VAOS completed more than 30 tanks (up to 1,000,000 barrels capacity) as well as beyond 500 km of newly installed or repaired pipeline.
Main Projects:
• Fabrication of Water Injection & Fire Water Tanks in Ghani
• Repair of Tanks 5D-4 & 5D-9 in Zueitina Terminal
• Roof Replacement of Tanks 470 & 472 in Tobruk
• Cut out Floating Roof of Tanks 9 & 10 in Tobruk
• Floor Replacement & Recoating of Tank ST-104 in Jofra
• Replacement of 16” Shipping Crude Oil Pipeline Sabah-Zella
• Tanks No. 4, 6 & 11 Inspection & Preventive Maintenance
• New Propane-Butane Tank 26D-2
• New Fuel Gas Line Brega – Zueitina Terminal
• 48" Crude Oil Pipeline Upgrade in Brega
Process Plant Construction & Modernisation
One of our main strengths is our ability to construct from scratch completely new plants from the ground up. We have the technical and practical know-how to handle the complexity of both large and small scale projects whilst meeting the exacting demands of our clients.
We have the in-country structure in terms of qualified and available manpower supported by a robust resource acquisition capability.
This allows for a far more responsive service, resulting in reduced project timelines and greater Value for Money.
Our work fully meets the standards set by the American Petroleum Institute (API) and we use only the highest standard materials to guarantee quality results.
VAOS can be relied upon for all your consulting, engineering, procurement and construction needs, from the smallest component to complete turnkey projects: we pride ourselves in being a ‘total solution partner’.
General Maintenance
Since 1983, VAOS has specialized in delivering sustainable general maintenance services for oil field operations, supporting the reliability and longevity of critical energy infrastructure.
Our experienced teams ensure the mission-critical continuity of oil and gas production by providing highly reliable maintenance solutions, operational support, and technical expertise tailored to the demanding conditions of the energy sector.
Through a strong commitment to operational excellence, we consistently deliver high-quality results that enhance asset performance, minimize downtime, and maintain production efficiency.
We work closely with our clients to bring their operational goals to life while strictly complying with international HSE standards and ISO requirements, ensuring safety, environmental responsibility, and the highest level of professional execution.
Drilling Services
Cathodic Protection Hole Drilling & Deep Well Services
The Cathodic Protection (CP) Hole Drilling Team provides specialized drilling services for cathodic protection systems, including the drilling of CP holes and deep CP wells to depths of up to 373 metres. Our scope of work includes precision drilling, installation and placement of anodes, as well as the application of specialized chemical backfilling materials to ensure optimal electrical conductivity and long-term protection of critical infrastructure.
In addition to cathodic protection drilling, the team has experience supporting deep water well drilling operations, utilizing advanced drilling techniques and equipment capable of operating in challenging geological environments.
Through our expertise, we support large-scale infrastructure, pipeline networks, water transport systems, and industrial facilities that require reliable corrosion protection and deep drilling capabilities.
Projects
• Great Man Made River Project
• Deep Ground Cathodic Protection Wells at 103D
Automated Tank Cleaning (ATC)
VAOS has extensive experience in this field and can provide tank cleaning, hydrocarbon recovery, maintenance and repair of storage tanks at refineries, oil fields and tank terminals.
Our tank cleaning service is automated, mobile and modular, and non-man entry.
The system is designed to clean large volume, difficult-to-clean oil tanks and is suitable for both floating and fixed roof tanks.
Its ‘closed loop cleaning system’ heavily reduces the impact of tank cleaning on the environment and provides beyond 97% hydrocarbon recovery.
When compared to manual cleaning techniques, this system is safer and reduces the tank down-time up to 80%.
Case Study
VAOS was contracted by Zueitina Oil Company (ZOC) to clean a 560,000 bbl crude oil storage tank with an estimated sludge content of 40,300 bbl.
The tank had a ‘double floating deck’ which made access difficult and entry hazardous.
The ATC system was deployed, resulting in the recovery of 40,250 bbl of crude oil (99.8% recovery rate), with a commercial value of $5,192,250 whilst maintaining the highest of environmental standards and sustaining no injuries.
Main reasons for using our ATC system:
• Near 100% recovery of hydrocarbons.
• Marketable products.
• Minimal waste disposal necessary.
• Minimal hydrocarbon emission to atmosphere due to closed-loop cleaning system.
• Lower consumption of water, electricity and air.
• Up to 80% reduction of tank cleaning time.
VAOS Ltd latest Presentation on ATC is available HERE
VAOS Ltd latest ATC brochure is available HERE
ATC animation of a complete tank cleaning and oil recovery process is available HERE
Specialized in Gas and Oil Facilities
We specialize in the construction, repair, inspection, and cleaning of specialized oil and gas facilities, leveraging our extensive technical expertise and industry experience.
Our team delivers advanced and efficient solutions through the use of innovative and intelligent technologies that are carefully designed to align with our clients’ operational objectives while integrating seamlessly into existing infrastructure.
By combining engineering excellence with practical field experience, we ensure reliable performance, operational safety, and long-term asset integrity across all project phases.
Our strong commitment to quality, sustainability, and continuous innovation distinguishes us within the industry and enables us to consistently deliver value-driven solutions to our clients.
Ionized Heavy Oil Flow Process (IHOF)
VAOS offers MAX FLOW™ which is a breakthrough ionization-based technology designed to significantly improve the flow characteristics of heavy crude oil — without chemicals, diluents, or heating.
Heavy crude oil represents an estimated 30–40% of the world’s total oil reserves. However, these resources remain difficult and expensive to transport due to their physical properties.
Heavy crude typically exhibits:
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extremely high viscosity
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elevated density
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poor pipeline flow characteristics
MAX FLOW™ uses a proprietary ionization mechanism that influences intermolecular interactions within heavy crude oil.
During the process:
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The crude oil flows through a controlled ionization chamber.
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The oil is exposed to a precisely regulated ionization field.
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Intermolecular forces between heavy hydrocarbon chains are temporarily reduced.
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The oil’s resistance to flow decreases.
This results in improved fluid dynamics, allowing heavy crude oil to move more efficiently through pipelines and transport systems.
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