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The global energy sector from a subsurface perspective

Oil & Gas

Revisiting the southern boundary of Sangomar

Henk Kombrink
Recently published maps of the Sangomar field offshore Senegal depict the southern boundary of the accumula­tion exactly lining up with the mari­time boundary between Senegal and The Gambia, suggesting that…

Exploring young petroleum systems comes with risks

Henk Kombrink
Any exploration well carries risk, and ul­timately, it is the drill bit that will either prove or disprove a play concept. In South Korea’s Ulleung Basin, despite the presence of…

The Athabasca oil sands

Henk Kombrink
Recent governments in Canada have not been particu­larly supportive of the oil industry, which mainly concentrates in Alberta. Some people are even actively contemplat­ing separation from the Canadian federation and…

Why peer reviews often don’t work

Henk Kombrink
Reputations are both made and destroyed in the af­termath of the drill se­quence. But what is behind the ranking that determines where the rig goes next? It is the prospect…

“No concern at all”: The economist’s view

Henk Kombrink
“I thought we would be speaking for 15 minutes, now it has turned into half an hour already!” Carole Nakhle is sought after when it comes to her view on…

Geosteering to number one

Henk Kombrink
“I learned the ropes of directional drilling in Siberia,” says Airat when we meet on Teams. He calls in from his home in Saudi Arabia, where he now works as…

Are half of the Tano Basin’s reservoirs in the Keta Basin?

Ben Sayers, Geopartners, and Matt Tyrrell, Trois Geoconsulting
Ghana’s ascendancy as a significant oil and gas pro­ducer commenced with the landmark Jubilee dis­covery in 2007, leading to first oil in 2010. This success was subsequently re­inforced by the…

A subsea tie-back to a subsea tie-back?

Henk Kombrink
The name of the discovery may suggest that it is the most distal find in the Gulf of Mexico ever, but that is not the case. bp’s recently announced Far…

Global trends in petroleum fiscal terms: A race to the top?

Carlos Bellorin and Ruaraidh Montgomery, Welligence
As competition for up­stream investment in­tensifies, countries across the globe have responded with a wave of fiscal and regulatory reforms aimed at attracting limited capital. Since the 2014 oil price…

Wind makes room for gas

Henk Kombrink
It is getting busy in the North Sea. Was the area a monopoly for oil and gas companies when it comes to energy production for decades, in recent years offshore…

It’s all in the planning

Peter Elliott, NVentures
Angola is host to a number of recent explora­tion highlights, driven by a well-organised and energetic energy regulator, ANPG and a strong appetite for low-risk growth in the upstream sec­tor.…