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Aligned with Hon’ble Prime Minister Shri Narendra Modi’s vision for alternative and sustainable energy, #ONGC is unlocking Ladakh’s geothermal potential in Puga Valley. ONGC teams have successfully drilled India’s deepest geothermal well at 1,000 metres, overcoming extreme weather, high-altitude terrain above 4,400 metres, and complex subsurface conditions. This milestone...

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US firm demos millimetre wave drilling tech to dig world’s deepest hole for power | Mrigakshi Dixit, Interesting Engineering Recently, millimeter wave drilling was demonstrated on a full-scale oil and gas rig in Houston, Texas. At present, the oil and gas industry is a major energy provider, delivering terawatts of power globally. Now, there’s an opportunity to leverage this existing infrastructure to tap into superhot geothermal energy, opening a new frontier for clean, abundant power. Founded in 2018, Quaise Energy’s primary goal is to revolutionize the energy landscape by harnessing superdeep geothermal energy. They aim to achieve this by deploying novel millimeter wave drilling technology. This technology is capable of reaching depths beyond conventional drilling limits, where temperatures are hot enough to provide abundant and globally accessible clean energy. Recently, millimeter wave drilling was demonstrated on a full-scale oil and gas rig in Houston, Texas. “This is the first-ever hybrid drilling rig, combining conventional and millimeter wave capabilities,” the company noted. It added that this development “puts us one step closer to superhot geothermal power production.” Geothermal hotspot lies miles deep The company says that the oil and gas industry operates on a massive scale, drilling around 70,000 wells annually worldwide using nearly 2,000 rigs. This extensive infrastructure and experience in large-scale operations are precisely what the geothermal sector needs to expand and become a more significant energy source. “By using these resources to drill superhot geothermal wells, we can generate abundant baseload power in record time. There’s no other energy solution capable of the same scale and speed,” it noted. To access geothermal hotspots, the company plans to drill wells ranging from two to twelve miles deep. This ambitious undertaking surpasses the depth of Russia’s Kola Borehole (7.6 miles). At these extreme depths exists “superhot rock,” where temperatures exceed 375°C (about 700°F). Superhot rocks could increase geothermal energy output, aligning with the U.S. Department of Energy’s goal to boost geothermal power production by 20 times in the coming years. Currently, geothermal energy accounts for less than 1% of total electricity in the U.S. The key hurdle is that conventional drilling technology cannot reach these extreme depths. This is precisely the problem that millimeter wave drilling technology is designed to overcome. The novel drilling method uses a gyrotron, a device that generates powerful, high-frequency millimeter waves. These waves are so intense that they can literally vaporize rock, functioning like a “microwave on steroids” to bore deep into the Earth. Technology demonstration Currently, Quaise Energy and Nabors Industries are running comprehensive tests to perfect the integration of their new drilling technology with existing oil and gas rigs. “We’ve taken a full-scale drilling rig and integrated our millimeter wave drilling system. We call it a hybrid rig, one that can perform both conventional and millimeter wave drilling to unlock geothermal energy at great depths all around the world,” noted Andres Calabressi, head of manufacturing at Quaise. New Atlas reported that Quaise successfully melted a hole into a granite/basalt rock mixture in a full-scale demonstration. They achieved this by powering a 100-kW gyrotron with 50,000 volts DC, connected to a Nabors F rig. During the demo, the drill operated at approximately 48 kW, burning through rock at a rate of 0.8 inches (2 cm) per minute. Read more:

Owen Gregorian

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Exploration and production of oil and gas are long-gestation, capital-intensive activities, but they are vital for strengthening India’s energy security and reducing import dependence. Answering a question in Rajya Sabha today, I explained the progress of the Ashok Nagar oil and gas project in West Bengal. The production sharing contract was signed in 2008, a discovery was made in 2018, and ONGC has already invested over Rs 1,000 crore. The Bengal Basin is estimated to hold about 240 million barrels of oil equivalent, with a cumulative production value of nearly Rs 45,000 crore. West Bengal alone stands to receive around Rs 4,500 crore from this project. Under the newly notified legislation, introduced as part of the energy sector reforms driven by Prime Minister Sh Narendra Modi Ji’s vision, there is now complete clarity on stamp duty and royalty payments, creating a transparent and balanced framework that benefits both the state government and the operator. With the provisional Petroleum Mining Lease granted in February 2025 and constructive engagement between the Centre, the state and all stakeholders, I am confident that production will begin soon. States that cooperate with exploration and production activities have already seen substantial revenue gains and with this project and future discoveries, West Bengal’s revenues will rise further, contributing to growth, employment and India’s energy security. PMO India Ministry of Petroleum and Natural Gas #MoPNG Oil and Natural Gas Corporation Limited (ONGC) Oil India Limited PIB India LOK SABHA SansadTV #EnergySecurity #ExplorationAndProduction #EnergyForGrowth #WinterSession

Hardeep Singh Puri

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