22 Suriname – Block 58, Apache, Sapakara West-1 prospect V.5.2.20
My best educated guess:
Will be 2nd significant petroleum (light oil & condensate) discovery offshore Suriname.
Block 58 is part of the east side of, what I call the “ Golden Lane of Guiana-Suriname Basin “.
Sapakara West 1 Location map:
Block 58 and bordering area presents a very similar
hydrocarbon habitat, with strong discovery-prone fundamentals, just as the previous major/giant Guyana discoveries.
Critical geological exploration & discovery success factors, in my humble opinion, till now are:
1) Fan systems in the “ deeper, third “ terrace or Cretaceous (deep) offshore area.
North of Cretaceous continental / basin margin.
2) Located above and/or close to the prolific mature/late mature Canje source rock kitchen.
With short and minimal migration problems.
Canje source rock is similar and time-equivalent (” family “) to famous Venezuelan, La Luna & Querecual source rocks.
The latters have generated some 300 billion barrels of proven reserves.
Some 100 billion bbls in Maracaibo Basin, some 200 billion in Orinoco Heavy Oil Belt (Ref. e.g. my own publications on these, also on this website).
My own geo-mindbreakers, have never seen any published data (yet) on this ?
a) How many billion barrels of petroleum were generated in Guiana-Suriname Basin, (just) from Canje source rock ?
…Major oil and gas generation from kerogen occurs between 120 and 150°C in the subsurface…
…gas generation continues to temperatures ⪢ 160°C…
b) How many km2 area does Canje cover?
c) How thick is Canje source rock (on average) ?
d) How much TOC content, on average ?
d) What is the volume in km3 of Canje source rocks ?
e) What is the total generation potential of 1 m3 Canje source rock, based on geochemical lab results ?
…> 5 kgt−1 of rock and average organic carbon contents > 1.5% expel 60–90% of the total oil generated.
f) What is the generation potential during the successive maturation stages (early, middle, late stages).
The richness calculated to be between 9 – 41 MMboe/km 2, for similar La Luna / Villeta S.R..
For example, in Norean-1 well, La Luna is 546 m thick with an average TOC value of 3.14 wt%; the Hydrogen Index (HI) is close to 302 mgHC/gTOC, and the S2 ranges from 5 to 27 mg/gRock
Ref. A Regional Overview of the La Luna Formation and the Villeta Group as Shale Gas/Shale Oil in the Catatumbo, Magdalena Valley and Eastern Cordillera Regions, Colombia* Ricardo Veiga1 and Francisco Dzelalija1
Search and Discovery Article #10565 (2014) Posted January 20, 2014
*Adapted from extended abstract prepared for oral presentation at AAPG International Conference & Exhibition, Cartagena, Colombia, September 8-11, 2013).
g) Where are the different area maps of the successive maturity phases ?
We (dr. Suhas Talukdar, former colleague and myself) did this same important and indispensable excercise for Maracaibo Basin, in 1984.
As part of ” Generation and migration of hydrocarbons in the Maracaibo basin, Venezuela: An integrated basin study “.
Under stewardship of prof. dr. John M. Hunt and prof. dr. Parke Dickey.
i) Etc. etc.etc., enough for a whole congress on source rocks…to get an idea on how much to expect…
3) deep basin floor fans are rather flat lying/low dip, with efficiënt top and side seals. Have a very wide areal extent with the largest reservoir / giant field potential.
1) Previous posts on GS basin on my website
2) GeoArt post: painting, my own prognosis in 2008 on Discovery Play types (already long before Guiana-Suriname Golden Lane discovery): Liza giant discovery, basinfloor and related fan systems).
Presented at successful Art exposition april 2010 at Consulate of Venezuela, Paramaribo, Suriname.
3) M.Sc. thesis (2009) on “ Deep Water Turbidites and Fan Systems in Guiana-Suriname Basin – Future Hydrocarbon Potential “.
Based on offshore seismic, wells, field analogs, experimental lab results & insights obtained at University Utrecht, company reports etc.
Thesis including Block 58 and surrounding area.
By one of my Dutch students, I designed the project and was his thesis steward and supervisor.
4) Offshore Suriname, A New Outlook.
Based on my own re-evaluation.
Play fairways, play types, prospective zones, leads, prospects, source rocks and kitchens, areas available for IOC licensing.
Presented dec. 2009, Trinidad, Port of Spain, Caribbean Energy Conference.
5) Etc. etc. etc.
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