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Posts Tagged ‘Paleogene’

red=blocks receiving bids at BBG2; blue=BBG1 and Sale 261 leases; green=active leases issued prior to Sale 261

Although bidding at Sale BBG2 was rather subdued, Gulf heavyweights BP, Chevron, Shell, and Oxy/Anadarko, along with increasingly important Woodside Energy, competed for the 4 red blocks in the Green Canyon area (map above and table below). These elephant hunters presumably see excellent Paleogene (Wilcox) prospectivity in those blocks.

17 of the sale’s 38 bids (45%) and $32.8 milion of the sale’s $47 million in high bids (70%) were for these 4 blocks. BP’s $21 million bid for GC 404 was by far the sale’s highest bid.

Green Canyon
Block No.
No. of biddersHigh BidderBid
4045BP$21,009,990
4052BP$885,99
4485Chevron$4,967,067
4925Chevron$5,887,188

At this time, the high costs and technical complexities (e.g. deepwaterand high pressure/high temperature reservoirs) limit Wilcox development to major oil companies and well financed, technically savvy independents. Expect some of the international majors that did not participate in BBG2 to acquire lease interest at a later date, which will again raise questions about the merits of joint bidding restrictions.

From AAPG graphic-Wilcox trend map. Eastern area can be subdivided into an outboard and inboard trend, with wells in the latter area showing variable thickness due to salt tectonics contemporaneous with deposition (From Zarra et al. 2019’s AAPG Search and Discovery article).

Imbedded below is a good presentation on the Paleogene Wilcox by Dr. Mike Sweet, Univ. of Texas:

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Four of the five simpler, safer, greener deepwater platforms featured on this blog are now producing. The 5th platform (Whale) is on location and scheduled to begin production later this year.

platformoperatorfirst production
King’s QuayMurphyApril 2022
VitoShellFeb 2023
ArgosbpApril 2023
AnchorChevronAug 2024
WhaleShelllate 2024

These platforms are in 4000 to 8600′ of water, are expected to reach peak production rates of 100-150,000 boe/day, and have favorable emissions characteristics on a per barrel basis.

This is all good, but what is next? Will technological advances once again sustain GoM production? The short answer appears to be yes!

The efficiencies achieved with the simpler platform designs combined with the high pressure (>15,000 psi) technology developed over the past 2 decades will facilitate production from the highly prospective Paleogene (Wilcox) deepwater fans. (For those interested in learning more about the geology, see the excellent presentation by Dr. Mike Sweet, Univ. of Texas, that is embedded below.)

Chevron’s Anchor is the first deepwater, high-pressure development. Three similar deepwater hub platforms (table below) will begin production over the next 5 years. These host platforms will also facilitate additional production from nearby fields. Each will have production capacities of approximately 100,000 boe/day. Note the long lead times in achieving first production given the technological issues that had to be evaluated and addressed.

platformoperatordiscovery datefirst production
Kaskidabp20062029
SpartaShell20122028
ShenandoahBeacon20092025

Wood Mackenzie sees these high pressure projects as the key to sustaining GoM production rates. Their projections for 2024 and 2025 seem optimistic based on 2024 YTD data, which adds to the importance of the projected new production.

Related: Movin’ on up to 20,000 psi BOP equipment

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