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TotalEnergies’ invention of the oil and gas sector’s very first hybrid pump was an industry first. The multiphase pump can simultaneously act as a pump and a compressor to boost flow and therefore production, thus improving the final recovery factor and cutting costs.

Subsea multiphase pumps – Exploration & Production – TotalEnergies

Marginal fields can be developed more economically with multiphase pumps

Multiphase pumps enable effluent to be carried away from production wells without prior separation. TotalEnergies uses them on three Block 17 developments in Angola – GirRI, Pazflor and CLOV – as they meet both the technical challenges and the cost reduction requirements that characterize deep offshore hydrocarbon production

The Company now boasts a record 14 installed units around the world. This unique pump makes it possible to develop marginal fields more economically, while reducing separation and processing costs, and even makes it possible to restart wells that run dry because their flow pressure had become too low to feed into the joint high-pressure production network. TotalEnergies was swift to recognize the added value brought about by boosting and transporting multiphase fluids (combinations of oil, water, gas, solids, sand) without prior separating to the gas/liquid separation and processing center.

High-voltage motors help simplify electrical architecture

TotalEnergies embarked on a unique new technological adventure with the development of multiphase pumps. The example of GIRRI in 2015 is a world first, boosting subsea pumps from a DeltaP (pressure change) of just 50 bars to 130 bars. In 2018, Moho 1bis rose to a new technological challenge by achieving the multiphase pumping of a highly viscous liquid of 800 cP in emulsion, compared to the previous threshold of 10 cP. This was another world first and a veritable technological breakthrough. TotalEnergies also rose to the challenge of developing high-voltage motors, doing away with the need to use subsea transformers. This has made it possible to simplify electrical architecture and cut costs as a result.

The utilization of multiphase pumps is also helping the Company reduce its carbon footprint. Subsea processing contributes to this in three ways: by reducing the power required and therefore emissions, by reducing the number of metallic structures to be set up and built, and by streamlining offshore logistics.

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