Because space requirements and intermittency limit the ultimate potential of other renewable energy super-sources, ultradeep geothermal may be the most exciting energy alternative on the horizon. However, ultradeep geothermal’s enormous potential can only be achieved if we can reliably drill deep beneath the surface and tap into superheated rock. As Quaise Energy’s Carlos Araque, formerly a Schlumberger engineer, has noted: “A lot of the challenges are the same as for oil and gas.”
This short video provides a good summary of the drilling technology that is under development.
I’m confident because the externalities that come with wind, solar and batteries, which are the other top candidates, are too large to bear at multi-terawatt scale: too much land, too many minerals, too much labour per unit of energy. Geothermal is very different: it is more like fossil fuels without the carbon. It’s more like nuclear – except fusion doesn’t work yet and fission is controversial.
A lot of the challenges are the same as for oil and gas. The subsurface is an uncertain environment. The deeper you go, the more extremes you have, but we’ve come a long way with the oil and gas industry to develop a whole suite of technologies, techniques and measurement systems to minimise that risk. The main challenge is maintaining wellbores from closing in on themselves as you go deeper. There’s a lot of pressure in the rock and these holes eventually will collapse. The way we answer that is by creating a glass wall in the rock as we burn it. When our technology vaporises the rock, it creates a glass wall and that remains on the walls and prevents the hole from collapsing.
Per the BSEE borehole file, there were 2 deepwater exploratory well starts since 4/1/2023. The Shell well is another GoM milestone in that it is the 150th well spudded in >8000′ of water. The first was in the year 2000.
Operator
spud date
location
water depth
Chevron
5/5/2023
Mississippi Canyon 608
6678′
Shell
4/13/2023
Alaminos Canyon 728
8660′
Arena and Cantium continue to drive shelf drilling. Below are the shelf development wells since 4/1/2023:
Based on drilling contractor rig activity reports, the table below lists 19 deepwater MODUs under or soon to begin contracts in the GoM. (Further details are pasted at the end of this post.) Per the Valeris report, platform rigs are operating on bp’s Thunder Horse and Mad Dog platforms. Per the BSEE borehole file, Arena and Cantium continue to drill development wells on the GoM shelf.
Sharing this touching tribute to the 11 men who died on the Deepwater Horizon on April 20, 2010. These American heroes gave their lives exploring for energy to power our economy. The video is introduced by singer Trace Atkins, a former Gulf of Mexico rig worker. Please take a moment to watch.
Deepwater (>1000′) activity continues to dominate, accounting for 61% of the well starts.
Not a single company drilled both shelf and deepwater wells.
While shelf facilities currently account for only about 7% of GoM oil production, 1122 of the 1179 remaining platforms are on the shelf and they account for 24% of GoM gas production, most of which is environmentally favorable nonassociated gas.
Two companies, Arena and Cantium, accounted for 75% of the shelf well starts. Excluding the CCS bids, Arena and Cantium were the most active shelf bidders in Sale 279. Arena bid alone on 7 blocks. Cantium was the high bidder on 5 blocks. (Focus Exploration was high bidder on 4 shelf blocks and was “outbid” by Exxon for High Island 177.)
One company, Shell, accounted for 39% of the deepwater well starts
One of BP’s exploratory wells (drilled subsequent to Sale 257) was in Green Canyon 821, immediately south of GC 777, the block that BP/Talos bid $1.8 million for in Sale 257. That bid was rejected by BOEM. In sale 259, BP was the sole bidder for GC 777, and their bid was only $583,000, less than 1/3 of their Sale 257 bid. Perhaps the GC 821 exploratory well reduced the value of GC 777? Will this lower bid now be accepted?
DW expl
DW dev
shelf expl
shelf dev
Anadarko
5
1
Arena
22
BOE
1
4
BP
2
3
Byron
2
Cantium
20
Chevron
3
Contango
2
Cox
2
Eni
2
5
EnVen
5
Greyhound
2
Hess
2
Kosmos
1
LLOG
3
1
Murphy
4
QuarterNorth
2
Shell
25
9
Talos
2
8
Walter
1
Woodside
3
1
Gulf of Mexico well starts during 2022 and the first quarter of 2023
What a completely pointless exercise! £20 Billion on a Carbon Capture Storage Plan. I wonder which private companies and individuals are being awarded these insane contracts I really do feel like Alice at times like these, except this is no Wonderland! 1984 more like…. pic.twitter.com/PCVTgETM1W
The most common causes of offshore fatalities and serious injuries, falls and being struck by equipment, receive little media attention because there is no blowout, oil spill, or fire. However, these are often the most difficult types of incidents to understand and prevent. Human and organizational factors predominate, and prevention is dependent on a strong culture that emphasizes worker engagement, awareness, teamwork and mutual support, effective training and employee development, risk assessment at the job, facility, company, and industry levels, stop-work authority, innovation, and continuous improvement.
While unlatching the lower Marine Riser Package from the Blowout Preventor in preparation for ship relocation, a crewmember was lifted into the air after being struck by a hydraulic torque wrench (HTW), hitting a riser clamp approximately six feet above the elevated work deck before falling to the rig floor. The crew member was given first aid and transported to the drillship’s hospital, where he was later pronounced deceased.
In an upcoming post, BOE will provide historical fatality data by cause and operations category.
