Wanner claims maintenance saving of £0.2 million for oil project
4 May 2022
Wanner International claims its installation of 15 Hydra-Cell polymer injection API674 pumps for an oil and gas multinational in India has saved 21,000 tonnes of polymer and cut maintenance costs by more than $250,000 (£0.2 million) in three years.
The pumps, used for alkali surfactant polymer (ASP) injection for enhanced oil recovery (EOR), were installed in less than a fortnight following a pilot test.
The ASP slug is injected through 14 injector wells via two injection manifolds installed within the oil field. Each imanifold has seven injection lines, with each line using an individual reciprocating pump for injection.
The slug is prepared by mixing soda ash, surfactant and 1500 ppm polymer in water, and stirred using an inline mixer before injection.
A Wanner spokesperson asserted Hydra-Cell’s low-shear pumping action reduced polymer consumption by up to 15%. With no dynamic seals, its seal-less design ensures the polymer is 100% contained, with no leakage there is no waste and keeps it free from oxygen to stop degradation.
The pumps can run for 15 years in other applications, can run dry indefinitely and are self-priming. They also provide 90% energy delivery from pump shaft to hydraulic power, achieving significant energy savings.
Wanner International MD Paul Davis said: “This was our first project in India using our Hydra-Cell polymer injection API674 pumps, so we’re delighted it’s proved to be so successful for our customer’s enhanced oil recovery application.
“Saving 21,000 tonnes of polymer and over $ ¼million in maintenance across the field is good news for the environment and for this oil and gas company. Combining this with energy saving and low maintenance is helping to reduce operating costs and delivering huge efficiencies for our customer.”