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The global energy sector from a subsurface perspective

Geology & Geophysics

A new global sea-level curve

Douwe van der Meer and Kent Wilkinson, CNOOC
Traditional long-term eustatic sea-level reconstructions suffer from uncertainty in stratigraphic interpretations of the rock record, which leads to ambiguity. Sea-level reconstructions from plate tectonic modelling are limited in use due…

Islands by night or…

Henk Kombrink
In an article we recently published, Olav Walderhaug from Equinor shared his thoughts on the possible presence of a deeply buried gas source rock in the North Sea. The line…

An Exposed Salt Dome

Stuart Harker
The salt exposed here consists of halites of the Ara Salt, which was deposited around 540 million years ago during the earliest Cambrian. The core of the dome, where the…

The Best of Brae

Henk Kombrink
In Late Jurassic times, an overall north-south trending graben system transected the North Sea as a response to tensional stresses building up in the wider area. The grabens were connected…

Microfossils and the World of Chalk and Chert

James Etienne
Microfossils are those fossils that require a microscope to carry out fundamental identification. They are the fossils of a biologically diverse group of organisms, including microscopic algae, protists, and invertebrates,…

How Does Wet Gas Form?

Henk Kombrink
A study performed by Olav Walderhaug from Equinor, the main outcomes of which he shared with GEO ExPro, shows that out of 50 reservoirs classified as wet gas accumulations, 47…

Palynology reinvented

Guest Author
An old technique re-imagined and reducing uncertainty in CCS sites. Palynology Reinvented Capturing carbon dioxide (CO2) from industrial and power sources and storing it in subsurface geological formations is an…

Seeing the whole picture

Steve Morse and Gerrard Spear, Lyme Bay Consulting
During the pandemic, Lyme Bay Consulting took the opportunity to download all the Operator-released 3D seismic data in the UKCS to produce a series of Post-Stack Merged Seismic Volumes covering…

“Land Plants Didn’t Evolve Until the Silurian”

Dr James Etienne
If you were to ask my wife when plants first evolved, she would answer without hesitation (in a mock pompous voice) “land plants didn’t evolve until the Silurian”! She is…

The Incredible World of Fossils

James Etienne
I fell in love with fossils like many others, as a child, hunting on the world-famous Jurassic Coast in Dorset in the UK, a UNESCO World Heritage site, and location…