Technically we were out of the bayous once we entered the Atchafalaya on day 1. Ever wonder the derivation of the word “bayou”? It’s Choctaw for “sluggish watercourse,” and there was not much sluggish about the Atchafalaya. While on word/place name derivations, “atchafalaya” is Choctaw for “long river.”
On the annotated map below, red shows roughly our track day 1, orange is day 2, and green is day 3. After day 1 we were no longer in inland watercourses.
Call it near coastal, or call it pelican waters, as contrasted with alligator and egret waters.
Or call it wellhead waters. Note all the pelicans residing on this platform marked TalosSS110A. Talos Energy is a significant oil/gas company in the GOM.
From charts, I surmise the floor of the GOM is crisscrossed with much more infrastructure than appears on the surface, and the number of platforms of various designs was too many for me to count. Granted, companies like Talos and Cox, not exactly household names although associated with the oil/gas industry, have departments to quantify every last item out here. Click here to see a hint of that subsea infrastructure for just one company; note that it’s interactive.
Crew of all skills levels get shuttled around in crew boats to platforms and lift boats.
No matter where you gaze, you see infrastructure.
Crew also shuttles in and out on helicopters.
Those appear to be a number of christmas trees on the lower left portion of this platform.
As day 2 wore on, we passed these laid up aka “cold stacked” drill platforms, although not close enough to read any names/writing on them. Might they be, and I’m quoting here from someone who knows more than I do, “seven or so former HERCULES jackups (which, in fact, have never been officially renamed as ENTERPRISE) that match these perfectly: six Bethlehem units (one of which has no derrick because she was last used for production) and one lattice–legged unit, matching the sole Marathon-LeTourneau rig on their list, HERCULES 150. [Check out the first six minutes of this 1980s film to understand some of the features].
These elderly shallow-water jackups are dinosaurs and have trouble finding work in the best of times. They probably were cold-stacked about 10 years ago as oilfield slowed down, and between antiquation and corrosion, would only be reactivated in a real windfall.”
“Lattice legged” I understand, but can someone explain the “screw” tip legs to the right, which must be Bethlehem Steel built?
As darkness fell, we “legged” down south of the Timbalier Islands, Terrebonne Parish, east of the mothballed rigs, and
southwest of Port Fourchon, aka Fourchon, where I’ve visited twice. Fourchon is so low-lying that even from just a few miles off, it seemed like nothing more than skyglow. I’ve not been back there after Hurricane Ida hit last summer.
Port Fourchon was little more than mosquito lands until 1960.
All photos and any errors, WVD. Many thanks to a modest but “somewhat trusty expert” [his nomenclature] for some explanation of the function of oil/gas infrastructure. As I post more such photos, I’m hoping more experts will weigh in.
Here’s a 2010 photo essay of rig work from the Houston Chronicle, and another from CNN here showing work conditions on a rig in the GOM.
5 comments
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August 11, 2022 at 1:07 pm
Bob
Some smokestacks have a similar screw shape near the top. Stack gases coming from a plain cylindrical stack will tend to hug the lee side and actually flow down the outside of the stack. I suspect the legs are similar to prevent diesel exhaust and/or well gases from building up.
August 11, 2022 at 3:10 pm
Anonymous
That is also how it was explained to me when I worked offshore in the Gulf back in the 1970s.
August 11, 2022 at 2:41 pm
George Schneider
I’ve also heard that wind whipping around tall cylindrical structures can cause resonance, and the resulting vibration can be damaging to the structure. If so, vibrating legs (and not necessarily in harmony) would be very disconcerting on a rig like this, standing 100 or more feet above the ground on those narrowly-spaced legs.
August 12, 2022 at 3:24 am
asquared
excellent and enjoyable and educationally enlightening post —
text enlightens (learning the derivation of words i have used was a treat)
really really good shots
but
they just got better as the post continued
even the map worked well
thanks
August 12, 2022 at 5:46 am
tugster
Thx, asquared….