PXGEO Expands Its Offshore Operations by Securing New OBN Contracts with Petrobras in the Santos Basin, Reinforcing the Use of MNode Technology in Advanced Seismic Projects
PXGEO, a global company specializing in marine geophysical services, announced the signing of two important OBN contracts with consortia led by Petrobras. According to an article published by PXGEO itself on Monday (17), the projects, which will be executed consecutively throughout 2026, aim to acquire and monitor high-resolution seismic data in the pre-salt of the Santos Basin, one of the most promising regions of the Brazilian energy sector.
Details of the OBN Contracts Signed with Petrobras
The operation will utilize MNode technology, a proprietary Ocean Bottom Nodes (OBN) system, recognized for its durability and ability to provide high-quality seismic data in complex geological environments.
According to an official statement from PXGEO, the contracts represent a significant advancement for the company in the Latin American market. The key points include:
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- Execution of the projects in 2026, consecutively.
- Use of MNode 4C technology, with autonomy of up to 300 days.
- Application in challenging geology areas in the pre-salt.
- Consolidation of PXGEO as a strategic supplier for Petrobras.
Brent O’Brien, Sales Director for the Americas at PXGEO, emphasized that these contracts represent a strategic step for PXGEO, strengthening its presence in Brazil through MNode technology.
What Are OBN Contracts and Why Are They Strategic?
OBN contracts involve the use of seismic sensors installed on the seabed, allowing for the capture of data with greater resolution and accuracy. Unlike conventional reflection seismic techniques with streamers, OBNs offer advantages such as:
- Higher fidelity in seismic imaging, essential for areas with salt or complex geological structures.
- Reduction of noise and interference, improving data quality.
- Operational flexibility, even in areas congested with platforms or underwater infrastructure.
These characteristics make OBNs ideal for mapping the seabed in the pre-salt, where the presence of salt hinders seismic interpretation by traditional methods.
MNode Technology: Innovation in Seismic Acquisition
MNode technology is a four-component (4C) seismic sensor system designed to operate in extreme environments with high durability. Its main attributes include:
- Autonomy of up to 300 days, allowing for prolonged acquisition campaigns.
- High data density, with three-dimensional coverage of the subsurface.
- Permanent seismic monitoring capability (4D), ideal for producing fields.
This technology enables Petrobras and its partners to obtain more accurate information about reservoirs, optimizing drilling and hydrocarbon recovery. In addition, MNode is considered one of the most advanced solutions on the market for high-complexity environments such as the pre-salt.
Strategic Benefits for Petrobras and the Energy Sector
The signing of contracts with PXGEO brings direct benefits to Petrobras, including:
- Reduction of geological uncertainties, positively impacting decision-making.
- Increased operational efficiency, with less need for redesigns.
- Strengthening of the technology supplier chain in Brazil.
Furthermore, the investment in high-resolution seismic acquisition contributes to the sustainability of energy production by maximizing the utilization of existing fields and reducing environmental risks.
PXGEO’s Expansion in Brazil with OBN Contracts
With these new contracts, PXGEO consolidates its presence in Brazil, one of the most dynamic markets in the offshore energy sector. The company had previously carried out projects in the region, but the contracts with Petrobras represent a qualitative leap in terms of scope and complexity.
It is expected that PXGEO’s operations in the Santos Basin will open the way for new opportunities, both with Petrobras and other pre-salt operators. The company also reinforces its commitment to innovation and operational excellence, fundamental pillars for its global growth strategy.
Global Trends and the Future of MNode Technology
The global trend points to a growing demand for OBN technologies, especially in mature production areas or with geological challenges. In this scenario, companies like PXGEO, which invest in innovation and strategic partnerships, are well positioned to lead the next generation of geophysical services.
MNode technology, with its ability to operate for long periods and generate high-quality data, will be increasingly valued by operators seeking efficiency and precision.
Additionally, the increasing digitalization of the oil and gas industry drives the demand for more comprehensive seismic data integrated with artificial intelligence and predictive modeling systems. MNode fits perfectly into this new paradigm.
Impact of Seismic Acquisition on Sustainable Development
The adoption of advanced technologies like MNode also contributes to more sustainable practices in the energy industry. By allowing for a more precise characterization of reservoirs, it reduces the need for unnecessary exploratory drilling, minimizing environmental impact.
Furthermore, high-resolution seismic acquisition is essential for monitoring producing fields, enabling operational adjustments that increase oil and gas recovery with lower resource waste.
Petrobras, as a leader in innovation in the offshore sector, has continuously invested in solutions that balance productivity and environmental responsibility. The contracts with PXGEO reinforce this commitment.
What to Expect from the Partnership Between PXGEO and Petrobras
The partnership between PXGEO and Petrobras in the pre-salt of the Santos Basin represents a strategic advancement for both companies and for the Brazilian energy sector as a whole. The combination of PXGEO’s expertise in seismic acquisition with Petrobras’s leadership in offshore exploration creates an environment conducive to innovation and operational excellence.
With MNode technology, the contracted projects have the potential to redefine quality standards in seismic acquisition in Brazil. It is expected that the data obtained will contribute to more assertive decisions, greater efficiency in production, and lower environmental impact.
Additionally, PXGEO’s presence in Brazil strengthens the local supply chain, creates qualified jobs, and stimulates the development of new technologies in partnership with universities and research centers. The consolidation of this partnership signals a promising future for energy exploration in the country, based on innovation, sustainability, and strategic collaboration.

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