A new DNV GL recommended practice (RP) has unlocked new opportunities for the oil and gas sector to deliver more cost-efficient and environmentally friendly subsea processing for improved hydrocarbons recovery. DNVGL-RP-F303 Subsea pumping systems provides a comprehensive specification for subsea pumping systems and complements existing industry standards.

DNVGL-RP-F303 has been published following a joint industry project including participants from subsea operators Equinor, Petrobras, Shell and Woodside in addition to four major systems suppliers; Aker Solutions, Baker Hughes, OneSubsea, and TechnipFMC. The project sought to address several obstacles to subsea processing and pumping. These include overcoming the sector’s perceived novelty and unfamiliarity of subsea processing technology which can prevent new projects from being sanctioned, even though the concept is proven. Dozens of subsea pumps have been installed and several have been in operation for more than a decade, for example off the coast of Norway and offshore Angola.

Lower emissions and the decarbonization of processes are the benefits of adopting energy efficient subsea processing systems when compared to conventional upstream facilities. This is due to the reduction in topside equipment and use of less electrical power when boosting closer to the wellhead.

DNV GL’s new RP:

  • provides a comprehensive specification for subsea pumping systems
  • helps companies to reduce costs by providing increased predictability and clear requirements for projects
  • provides guidance and simplifies how to perform a risk-based approach when witnessing the manufacturing and testing processes
  • contributes to further standardization in the subsea industry
  • offers predictable requirements and standardized product results leading to increased confidence in the subsea pumping system
  • increases the reuse of qualified technology with minimum test requirements to reach Technology Readiness Level 4
  • complements existing industry standards.

The RP can also serve as a contractual reference document between purchasers and suppliers and recommends roles and responsibilities among the parties in the value chain to increase efficiency.

2 KristinBergKristin Berg, Head of Section, Subsea Technology, DNV GL – Oil & Gas

“Fields frequently operate tailor-made subsea solutions involving extensive technology qualification programs. Special installation tools are needed, often on specialized vessels. The thinking behind the joint industry project was to increase alignment and predictability of requirements for subsea pumping projects. This can open the door to repeat projects and the reuse of qualified technology, which can reduce costs and address the perception of technology risk,” said Kristin Berg, Head of Section, Subsea Technology, DNV GL – Oil & Gas.

3 LivAHovemLiv A. Hovem, CEO, DNV GL – Oil & Gas

“Investment in subsea oil and gas production is growing rapidly as the industry realizes the significant cost efficiencies the technology can bring compared with traditional approaches to production. The challenge is that everyone is implementing subsea systems slightly differently, creating the potential for cost inflation in the supply chain. Starting with subsea pumping, this new RP works towards standardizing this sector from the outset to keep costs optimal for the long term,” said Liv A. Hovem, CEO, DNV GL – Oil & Gas.

DNVGL-RP-F303 Subsea pumping systems can be accessed here.

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