Portuguese 
English 
Spanish 
4 min of reading 
0 comments 
Company of Brazilian Vitor Abreu Helped Identify Potential Oil and Gas Reserves in the East Sea of South Korea, Estimated at Up to 14 Billion Barrels of Oil Equivalent According to the Country’s Government.
South Korea became the center of attention in 2024 when President Yoon Suk Yeol announced the authorization for exploratory drilling in deep waters near Pohang, in the East Sea. The announcement cited estimates of up to 14 billion barrels of oil and gas which, if confirmed, could supply the country for decades and reduce reliance on imports.
Behind the technical analysis is Vitor Abreu, co-founder of the consulting firm ACT-GEO, hired by the state-owned KNOC to reassess seismic and geological data from the region. In a press conference, Abreu stated that the prospects “have great potential,” but stressed that only drilling could confirm the presence of hydrocarbons in economically viable volumes.
Abreu is Brazilian, with decades of experience in oil exploration, and maintained academic and consulting roles in the United States. His professional profile describes his Brazilian origin and career starting at Petrobras, which helped highlight Brazil’s participation in this story that mobilized the Asian energy market.
-
The rise in oil prices could ensure an extra revenue of R$ 100 billion for the Federal Government, indicates a recent economic study.
-
Naturgy begins an investment of R$ 1.6 million to expand the gas network in Niterói and benefit thousands of new residences and businesses.
-
A major turn in the Justice system suspends tax increases and directly impacts oil and gas companies in Brazil by affecting costs, contracts, and financial planning, leaving uncertain what could happen to the sector if these costs had increased.
-
Brava Energia begins drilling in Papa-Terra and Atlanta and could change the game by reducing costs in oil while increasing production and strengthening competitiveness in the offshore market.
The estimates excited local investors and boosted energy sector stocks in Seoul on the day of the announcement, although the authorities themselves have emphasized that nothing is guaranteed before “turning the drill.”
Who is Vitor Abreu and How Did the Estimate of 14 Billion Barrels of Oil Arise
The ACT-GEO, Abreu’s company, was hired to integrate seismic data, profiles of old wells, and new geological models along the South Korean east coast. The work indicated ranges of 3.5 to 14 billion barrels of oil equivalent, a figure that guided the government’s decision to authorize exploratory drilling.
According to Abreu, the elements of the oil system present in the mapped targets are compatible with high-potential discoveries in other basins from a technical perspective. Still, he classified the initiative as a necessary step to “prove” what the models indicate underground.
The specialist’s nationality gained prominence in the Brazilian press because he is a Brazilian geologist involved in a project that could reposition South Korea on the energy map. Professional and institutional biographies explicitly describe him as Brazilian, with global experience in offshore exploration.
Exploration Timeline in the East Sea and Costs per Well
The South Korean government reported that the exploratory program would begin at the end of 2024, with preliminary results expected in the first half of 2025, however, as of August, the country’s government had not made any official announcement. Each well was estimated to cost around 100 billion wons, and the initial plan anticipated drilling up to five wells to assess the economic viability.
In November 2024, the Ministry of Trade, Industry and Energy finalized the final approval of the drilling plan, selecting the Blue Whale prospect as the first target and preparing the logistics for the rig to conduct operations in deep waters. This step consolidated the operational phase of the project.
The public strategy communicated by the government was to drill, test, and quickly measure to confirm volumes and quality of oil and gas reservoirs. The official message reiterated that only well data could transform the gamble into a commercial discovery, a scenario that requires volumes, pressures, and permeabilities compatible with development.
High Risk, 20% Success Rate, and Woodside Energy’s History
Despite the excitement, authorities and consultants still discuss the success rate of about 20%, which implies an 80% probability of failure per well in the exploratory phase. This transparency aimed to temper market and public expectations about the “discovery,” which remains potential.
The regional history also calls for caution. The Australian Woodside Energy explored the area for over a decade and left the blocks in 2023 after deeming the prospectivity low, although the government claims that new data and interpretations have changed the technical outlook.
Local experts remind that deep-water exploration is expensive and subject to numerous geological risks. Therefore, governments and companies often distribute risks by drilling multiple targets before concluding on the true potential of an oil province.
Economic Impacts, Regulatory Environment, and What the First Results in 2025 Showed
If commercially viable volumes were confirmed, the official numbers cited in the South Korean government’s announcement indicated gas for up to 29 years of consumption and oil for about four years in the country. This would reduce reliance on imports and bring gains in energy security, although the transition to clean sources remains on the radar.
In February 2025, however, preliminary results released by the ministry itself indicated signs of gas at the Blue Whale prospect but insufficient hydrocarbon saturation to prove economic viability, making a second drilling at that specific target unlikely. The local press classified the first test as failed.
In addition to the technical assessment, there is the environmental and financial debate. Independent entities question whether expanding gas and oil in the region makes sense in light of the goals for climate neutrality and the expected shrinkage of demand for fossil fuels in the coming decades, which could affect financing and returns from projects.
-
-
-
-
-
-
43 pessoas reagiram a isso.