Marine seismic specialist PXGEO has strengthened its position in Brazil by securing two new contracts for ocean bottom node (OBN) seismic acquisition from consortia led by Petrobras in the Santos Basin.
The projects are scheduled to commence back-to-back in 2026, with PXGEO deploying its proprietary MNode 4C OBN technology.
Extended battery life, fewer retrievals
The MNode 4C OBN system offers a battery life of up to 300 days, enabling:
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longer deployment periods offshore,
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larger and more complex seismic surveys without frequent interruptions,
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fewer node retrieval and redeployment operations.
According to PXGEO, these extended operating cycles reduce the need for repeated handling of equipment and help execute projects where schedules are often constrained by weather-related downtime. Fewer retrievals and redeployments translate into higher operational efficiency and fewer project delays.
High-precision imaging for complex geology
OBN technology is widely recognised for delivering the seismic accuracy required in complex geological environments.
As Brent O’Brien, PXGEO’s Sales Manager for North and South America, explained:
“OBN technology is renowned for providing the seismic precision operators need to address complex subsurface challenges. It allows them to better identify bypassed hydrocarbons, monitor fluid movement within the reservoir and more confidently manage reservoir compaction.”
Growing demand for higher-resolution data in Brazil
Over the past four years, PXGEO has carried out six seismic surveys in Brazil, reflecting operators’ growing demand for higher-resolution imaging of deeper and more complex reservoirs.
The latest contracts in the Santos Basin further underline the importance of advanced OBN solutions and reinforce PXGEO’s position as a key player in Brazil’s offshore seismic market.




