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HydroVolve’s GeoVolve HAMMER System Set to Halve Cost of Geothermal Well Spend

Global energy technology firm, HydroVolve, has launched GeoVolve HAMMER, a percussive drilling system set to cut well capital expenditure of geothermal wells by 50%.

GeoVolve HAMMER. Image Credit: HydroVolve

GeoVolve HAMMER, powered by HydroVolve’s field proven INFINITY engine, uses percussive impulse energy to fracture the rock ahead of the drill bit, enabling deep drilling into hot, hard rock easier and faster. Operated simply by the flow of pressurised drilling fluid, GeoVolve HAMMER is an all-metal construction allowing it to operate in hazardous environments at extreme temperatures for extended periods.

Currently, the cost of geothermal drilling can account for up to 50% of total well project costs, with the majority of spend due to time spent drilling through difficult rock formations. Drilling through hard rock using conventional rotary methods causes drill bits to wear, dull or break down rapidly after short drilled depths. This results in the need to regularly recover the failed drill bit to surface for replacement, adding significant project time and costs.

GeoVolve HAMMER uses a percussive drilling technique which is proven to speed up the drilling rate of penetration (ROP) in hard rock by up to 10 times or more. GeoVolve HAMMER’s percussive drilling method is less damaging to the drill bit, meaning the bit can drill deeper for longer, further reducing equipment-related costs and boosting time efficiencies. With geothermal drilling rig spread rates often exceeding £100 k per day, GeoVolve HAMMER has the potential to create significant cost savings for the geothermal sector by decreasing project time by weeks or in some cases, months.

GeoVolve HAMMER is a simple plug-and-play system featuring an integrated system design approach, which allows it to be compatible with any bottom hole assembly (BHA). It is fully configurable and does not interfere with measurement while drilling (MWD) or steerable systems, meaning it can be deployed without compromising the performance of the other downhole systems.

This system is full-bore, does not induce pressure loss in the BHA, provides real time feedback on drilling performance and can also be deployed in oil and gas hard rock environments and Extended Reach Drilling (ERD) operations. The GeoVolve HAMMER’s engine, HydroVolve INFINITY, is already trusted in the field by many major operators.

Dr Peter B Moyes, HydroVolve Founder, said:

“With GeoVolve HAMMER, we’re transforming geothermal economics using oil and gas technology innovation and expertise. Where previous percussive drilling tools have lacked consistency and reliability, GeoVolve HAMMER has the capability to overcome all previously met challenges by providing resilience, longevity, and thermal capability.

“Delivering technology which accelerates global access to affordable and sustainable geothermal energy has long since been a dream for us, and we’re excited to seize this opportunity to help the energy sector dramatically shift the cost of geothermal. Working closely with ZerdaLab to perfect the GeoVolve HAMMER, we’re proud to provide a solution to unlock the full potential of geothermal energy and assist the global energy transition.”

Vasiliy Zbaraskiy, Zerda Lab Chief Technology Officer, said:

“Delivering adequate energy to the bit is critical to enabling stable and efficient drilling performance, and to prolonging the bit’s life. This is especially important in drilling hard rock applications, such as geothermal.

“Percussive drilling technology can help to deliver energy directly to the bit’s interface with the rock. HydroVolve’s GeoVolve HAMMER tool is highly configurable, simple and robust, and, when run in conjunction with the appropriate bit design, will maximize interval drilled and ROP every time.”

HydroVolve is working closely with several industry leading partners across both the oil and gas and geothermal sectors to accelerate the development of GeoVolve HAMMER. 

Source: https://hydrovolve.co.uk/

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