A Novel Setup Facility for Geothermal Downhole Tools Testing and Qualifying

Abstract

Unlike many renewable sources such as solar and wind, which rely on favorable weather conditions, geothermal energy is not influenced by these factors. It stands out as a unique non-conventional energy source that remains unaffected by climate change and is available in many parts of the world. Geothermal energy will play a crucial role in achieving the net zero targets set by various countries. As a result, significant focus is currently placed on advancing geothermal energy and addressing the challenges associated with its use. In that respect, this paper specifically addresses the challenges associated with the testing of downhole tools, particularly packers, which are essential for stimulation, zonal isolation, and casing protection in geothermal applications. This paper describes the upgraded setup specifically designed for High-Pressure, High-Temperature (HPHT) testing of the packer developed by our research partner for the Utah FORGE project. This setup can provide a differential pressure in the annulus and packer of up to 10,000 psi while maintaining a temperature above 350°C. Currently, no existing testing facilities offer the capability to replicate such harsh conditions for packer testing for geothermal qualification. This makes the given setup a significant advancement in geothermal technology, as it addresses a critical gap in the ability to thoroughly evaluate packers under the demanding conditions they will encounter in a real geothermal application. By providing these rigorous testing conditions, the setup ensures that packers can be thoroughly tested for their sealing capability and overall durability, which is essential for the successful implementation and operation of geothermal energy systems. This paper will show the details of the testing setup that makes this a uniquely geothermal testing facility.