Guyana #Suriname #Basin:
Easy Question?
How many โ milligals โ do you need on your iPhone?
To find a giant field in Golden Lane?
Finding oil isโฆpeanuts.
โฆMacro Tectonic Structure, Petroleum Discoveries, Golden Lane area.
Geo-musings.
Looking at this detailed geophysical map of the Guyana Basin, my analysis of the key offshore fields within their geological context:
The map shows a Bouguer gravity anomaly survey of the Guyana Basin, with values ranging from -40 to +300 milligals.
Several important geological features control hydrocarbon accumulation in this region.
Key geological elements visible:
- Guyana Suriname Basin is divided into Inner and Outer sections
- There’s a prominent Transform Margin along the coast
- The Demerara Plateau is visible in the eastern section
- Multiple fault systems and structural features are present, including the LALOC (Landward Limit of Oceanic Crust).
Why, when, how formed, all?
Explainโฆ
Regarding a few specific fields:
Liza-1 (ExxonMobil’s major discovery) is located in the Outer Guyana Basin region, in the orange-yellow colored zone (approximately 120-140 milligals).
Where significant sedimentary thickness provides excellent conditions for hydrocarbon accumulation.
This area benefits from:
- Deep water environment
- Position relative to transform margin structures and vicinity of kitchen of world-class ACT hydrocarbon system.
- Favorable sedimentary deposition patterns
Block 58 Gran Morgu (Apache/Total discovery) situated further east, in the Suriname portion of the basin.
This area shows:
- Similar gravity anomaly patterns to Liza
- Proximity continental crust extensional margin.
Sitting with their ass, sorry derriรจre, on highly mature oil and wet gas kitchen, ACT golden HC system of the Golden Lane. - Beneficial strat-structural trapping mechanisms
Both fields benefit from:
- Location within the outer basin’s sweet spot
- โ Protection โ by the Demerara Plateau structure
- Proximity to, sitting op top of mature source rock kitchens.
Peaked rapidly in maturation and expulsion in a most favourable time period, basically upper Neogene times.
When Upper Cretaceous deepsea sandy reservoirs.
Already put slightly on gentle structure, by Mother Nature, and desperately crying to be filledโฆ?
โ Quien no llora ?
No, no mamaโฆโ
Si seรฑor.
Asรญ son las cositas en esta vida.
Ya me lo dijoโฆ(โฆtambien aโฆTrump?).
Mi amigo Carlos.
Escuche atentamenteโฆporfa.
- Favorable structural and stratigraphic trapping mechanisms
These fields are largely due to their position within this complex geological framework.
Multiple factors combined to create ideal conditions.
Question?
Other offshore blocks in Suriname, where TotalEnergies, Shell, Petronas will be drilling in 2025.
How many milligals on the map?
They qualify?
Wish you a great DeepSeek-R1 tuesday?
For paidโฆChatGPT Plus & Friends?
AโฆDeepSick-V1โฆblueish-ruby tuesday.
Listen to accompanying songโฆRuby Tuesday, The Rolling Stones, one of the ever favs, on YouTube.
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