by Nick Warren, Engineering Manager at Quantum Process Systems
Most current geothermal plants are open-loop with the more prominent using superheated brines. These are to be found within geologically active regions with shallow high-temperature fractured / permeable strata. The holy-grail target configuration will be closed-loop, which possesses none of the awesome silica scaling challenges associated with the use of open-loop brines.
Extended–reach, horizontal wells can deliver a highly effective steam super-heating system with imaginative completion design. Energy on demand, for short-term bursts of peak time power, forms an attractive target market. Peak-shaving power generation is a growing and rather obvious target. Geothermal is virtually limitless – and available 24/7.
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