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The global energy sector from a subsurface perspective

Worldwide

Natural hydrogen: Is it here to stay or will the bubble burst?

Mariël Reitsma - HRH Geology
The conference opened strongly with a keynote by Viacheslav Zgonnik from HyReveal, tackling this question. His market research shows that the number of companies exploring for natural hydrogen is rapidly…

How a sandbox model caused an epiphany

Henk Kombrink
“I think I watched it about 50 times,” Sean tells me when we meet online on a rainy morning. He refers to a video published by the FluidFlower research team…

Porosity in compressional stress regimes

David Rajmon, Consulting Geologist
Porosity prediction sits at the heart of basin models and pros­pect evaluation. It underpins our understanding of reservoir quality, pore pressure, and thermal his­tory. Traditionally, porosity has been modelled as…

Does oil really stop diagenesis?

Henk Kombrink
It is all about timing. That is the main conclusion when reading a new paper recently published by Olav Walderhaug and Kristin Por­ten from Equinor. The paper is mostly about…

Fracture connectivity and power laws

Henk Kombrink
It was about a year ago that I heard about a deep geothermal drilling project in Finland (St1 Deep Heat Project), during which a couple of 6 km deep wells…

The forgotten science

Rodney Garrard
The perceived “talent crisis” in geology is a multifaceted issue rooted in historical, economic, and cultural shifts. In the mid-20th century, geology thrived. The post-war industrial boom and global demand…

The human touch in reservoir modelling

Henk Kombrink
As our 30-minute conversa­tion took place on a Tuesday morning in early September, three emails arrived in Bas­tian’s inbox. Three separate and unrelated enquiries from customers in Switzerland, Germany, and…

Subsurface noise, Issue 4, 2025

Henk Kombrink
“SOMEONE EVEN CALLED ME TO ASK HOW I WAS” “People who have always worked offshore in the North Sea really don’t know how good they have it,” told a well…

The shrinking pool of large international E&P companies

Obo Idornigie, Welligence
The group of large interna­tional E&Ps has been steadily shrinking. Over the past five years, companies in the peer group, including Noble Energy, Mar­athon, and Hess, have been acquired. These…