Is Offshore Geothermal Energy Production Feasible Through Thinner Ocean Crust?

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SUMMARY

Offshore geothermal energy production through thinner ocean crust, approximately 10km thick, is feasible but presents significant challenges, particularly in drilling and maintaining connections at high temperatures. The discussion highlights the necessity of a closed cycle system, incorporating heat exchangers, turbomachinery, and generators, tailored to the specific temperature parameters. The University of Hawaii is currently conducting a test project related to this innovative approach. For further insights, ocean thermal power resources are recommended.

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Longstreet
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I was wondering how feasible it would be to drill through the thinner ocean crust to create artificial geothermal spots for energy production. The crust is only about 10km thick, and drills have gone that deep but only on continental crust which is much thicker. I guess drilling and maintaining the connection at that temperature is the main problem. But I would think you wouldn't need to drill all the way through to reach several hundred degrees.

Thanks,
 
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One would probably need to install a closed cycle system including heat exchangers, turbomachinery, and generator near the thermal source. The sizing would depend on the max/min temperatures, temperature difference and desirable output.
 

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