BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Denver BEGIN:DAYLIGHT DTSTART:20250309T030000 TZOFFSETFROM:-0700 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:MDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20251102T010000 TZOFFSETFROM:-0600 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:MST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20250818T134903Z UID:983F3B93-2ABD-4C2F-B4E5-B7C4BFC90891 DTSTART;TZID=America/Denver:20250813T150000 DTEND;TZID=America/Denver:20250813T160000 DESCRIPTION:Jimil Fadi El Masry will be giving a talk on the development of an acoustic well logging tool for enhanced geothermal environments.\n\nGe othermal energy is emerging as a promising sustainable energy resource\, p articularly with increasing interest in exploiting high-temperature\, high -pressure (HTHP) reservoirs. However\, the development of technology for d iagnostics in such extreme conditions remains a big challenge. Commonplace acoustic well logging tools fail to obtain reliable measurements under th e combined effects of high pressure and temperature and exposure to highly corrosive fluids present in deep geothermal wells. This highlights the ne ed to improve and adapt downhole acoustic tools to reliably operate in suc h conditions.\n\nWe developed two models to evaluate the thermal resistanc e of candidate material composites under HTHP conditions. The first model focused on thermal energy storage by including layers of Phase Change Mate rials (PCMs) embedded between silicon aerogel insulation layers. The secon d model incorporated a packer-supported vacuum layer enclosed between sili con aerogel layers. Both models were evaluated by implementing heat transf er equations in COMSOL Multiphysics under the finite element framework. We employed Fourier’s law and the conservation of energy equation to evalu ate thermal resistance and heat flow in both configurations under HTHP con dition.\n\nResults demonstrated that PCM layers significantly delayed temp erature breakthrough by absorbing and storing thermal energy during phase change. Moreover\, alternating PCM-silicon aerogel configuration significa ntly outperformed a single aerogel layer supporting enhanced thermal resis tance and heat transfer delay at HTHP conditions. The second model with va cuum encapsulated between aerogel layers displayed the best thermal perfor mance\, nearly eliminating heat transfer. However\, the latter design intr oduces stability challenges such as maintaining the vacuum seal and avoidi ng structural collapse due to the pressure differential. Both designs demo nstrate high potential for thermal insulation but require further evaluati on for reliable implementation.\n\nSpeaker(s): Jamil\, \n\nRoom: Multi Pur pose Room\, Bldg: White Rock Branch Library\, 10 Sherwood Blvd\, White Roc k\, New Mexico\, United States\, 87545 LOCATION:Room: Multi Purpose Room\, Bldg: White Rock Branch Library\, 10 Sh erwood Blvd\, White Rock\, New Mexico\, United States\, 87545 ORGANIZER:jgreenhall@ieee.org SEQUENCE:14 SUMMARY:IEEE Talk - Development of an acoustic well logging tool for enhanc ed geothermal environments URL;VALUE=URI:https://events.vtools.ieee.org/m/496674 X-ALT-DESC:Description: <br /><p>Jimil Fadi El Masry will be giving a talk on the development of an acoustic well logging tool for enhanced geotherma l environments.</p>\n<p>Geothermal energy is emerging as a promising susta inable energy resource\, particularly with increasing interest in exploiti ng high-temperature\, high-pressure (HTHP) reservoirs. However\, the devel opment of technology for diagnostics in such extreme conditions remains a big challenge. Commonplace acoustic well logging tools fail to obtain reli able measurements under the combined effects of high pressure and temperat ure and exposure to highly corrosive fluids present in deep geothermal wel ls. This highlights the need to improve and adapt downhole acoustic tools to reliably operate in such conditions.&nbsp\;</p>\n<p>We developed two mo dels to evaluate the thermal resistance of candidate material composites u nder HTHP conditions. The first model focused on thermal energy storage by including layers of Phase Change Materials (PCMs) embedded between silico n aerogel insulation layers. The second model incorporated a packer-suppor ted vacuum layer enclosed between silicon aerogel layers. Both models were evaluated by implementing heat transfer equations in COMSOL Multiphysics under the finite element framework. We employed Fourier&rsquo\;s law and t he conservation of energy equation to evaluate thermal resistance and heat flow in both configurations under HTHP condition.</p>\n<p>Results demonst rated that PCM layers significantly delayed temperature breakthrough by ab sorbing and storing thermal energy during phase change. Moreover\, alterna ting PCM-silicon aerogel configuration significantly outperformed a single aerogel layer supporting enhanced thermal resistance and heat transfer de lay at HTHP conditions. The second model with vacuum encapsulated between aerogel layers displayed the best thermal performance\, nearly eliminating heat transfer. However\, the latter design introduces stability challenge s such as maintaining the vacuum seal and avoiding structural collapse due to the pressure differential. Both designs demonstrate high potential for thermal insulation but require further evaluation for reliable implementa tion.</p> END:VEVENT END:VCALENDAR