Insights
Methods, explained plainly.
Short explainers on how subsurface evidence is acquired, interpreted and reported.
01 / Articles
4 articles
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borehole logging · methods
Reading a gamma-ray log: what it measures and what it does not
The gamma-ray curve is usually the first track on a log. It responds to natural radioactivity, which makes it a useful lithology indicator and an unreliable one if read alone.
Draft explainer [VERIFY: byline and final text].
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carbon storage · uncertainty
P10, P50, P90: stating storage capacity as a range
A single capacity number hides the thing a decision-maker most needs to know: how wrong it could be. Probabilistic cases make that explicit.
Draft explainer [VERIFY: byline and final text].
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borehole logging · petrophysics
Core-log integration: why depth matching comes first
Core gives direct measurements on a few metres of rock. Logs give indirect measurements over the whole well. Joining them starts with getting both onto the same depth.
Draft explainer [VERIFY: byline and final text].
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carbon storage · monitoring
What an MRV plan needs from the subsurface model
Monitoring, reporting and verification is designed around what the subsurface model predicts and, more usefully, around where that prediction is weakest.
Draft explainer [VERIFY: byline and final text].