Maintaining reservoir pressure is an important process in the development and operation of wells to achieve high rates of oil production. The primary method is water flooding, where hydrocarbons are pushed towards the production well by injecting water. As a result, pressure maintenance systems (PMS) represent a complex of technological equipment for preparing, transporting, and injecting the working agent into the reservoir.
Novomet produces equipment for PMS and liquid pumping systems based on proven installations of submerged centrifugal horizontal pumps. They have become a reliable replacement for complex pumping systems that require costly maintenance and long repair or replacement times. Novomet's horizontal pumping systems can pump liquids with large gas volumes—up to 97% of the pumped medium's volume. Today, we have mastered installations with an inlet pressure of up to 300 atmospheres and an outlet pressure of up to 350 atmospheres.
We offer technologies for PMS such as horizontal pump installations, "pipe-in-pipe" horizontal pump installations, mobile pumping units, and complete block pumping stations that include technological pipelines, automated control systems, life support systems, heating, lighting, security and fire alarms, etc. Additionally, these also include highly efficient inverted-type electric submersible pumps and systems for water-gas impact and flaring of associated gas using jet pumps.
Novomet's innovative solution is the "pipe-in-pipe" pumps with energy-efficient valve drive. They are designed to increase injection pressure directly at the well pad and can be integrated into existing pipelines to boost pressure at any required location.
— The advantages of this installation are that it does not require additional maintenance, as it has no end seals that periodically fail, - explains Dmitry Khlebov, head of the non-standard equipment department at Novomet. – It can accept inlet pressures of up to 300 atmospheres and more, unlike its counterparts that use end seals with a maximum inlet pressure of 200 atmospheres. It can also be installed on any foundation, eliminating the need for capital construction and special preparation. Repairs can be conducted in the shortest possible time—up to 1 week. Another advantage is that all the equipment used is developed and manufactured in Novomet, unlike other companies offering similar installations. Recently, we have noticed a growing demand from customers for such equipment.
Among the promising directions for the company are pump installations based on high-performance, high-pressure energy-efficient pumps of sizes 14 and 16 with increased efficiency and smaller dimensions. They can be installed in a block box with automation systems, ventilation, and lifting mechanisms. The drive consists of industrial asynchronous surface electric motors.
Novomet's PMS and surface liquid pumping systems can be used in various areas of oil extraction and processing—injector wells, water-gas impact on the reservoir (using jet pumps), surface liquid transportation, booster pumping stations, high-pressure liquid injection/pumping, underground leaching extraction, mine dewatering, geothermal stations.
The company's specialists select equipment considering the achievement of maximum efficiency in the operation of the installation and the customer's requirements. The use of frequency regulation allows for adjusting the pump's operation at the point of maximum efficiency.
In summary, the advantages of Novomet's horizontal pumping systems include reduced initial investments and lower ongoing maintenance costs, no downtime due to a simple-to-maintain and repair modular system, reduced environmental impact due to fewer leaks and emissions, and efficient pumping of liquids with gas content up to 97%.