Jarðhitaborun - Mannvit.is
Article - 22/08/2022

Casing Failures in High Temperature Wells

Mannvit will be presenting a paper on “Casing Failures in High Temperature Wells” at this year’s Geothermal Rising Conference (GRC) in Reno, on superhot geothermal systems, well design, casings and thermal expansion. The paper is co-authored by Mannvit’s geothermal experts on geothermal drilling; Mr. Kristinn Ingason and Mr. Arnar B. Árnason.

Superhot Geothermal Systems

Drilling for and utilizing fluid from superhot geothermal resources may be a feasible way of utilizing geothermal energy. The main opportunities are related to higher output of energy rich fluid from production wells. A prerequisite for utilizing the hot fluid deep in the geothermal field is a reliable well design and that casing failure will not result in abandonment of wells drilled for utilizing this fluid. Due to thermal expansion casing failed in both of the wells drilled until now in the Iceland Deep Drilling Project i.e. in IDDP-1 and IDDP-2. Similar failures of casings have also occurred in unusually hot conventional geothermal wells. The casing failures in IDDP-1 and IDDP-2 and casing failures in couple of unusually hot conventional geothermal wells will be described, the causes of these failure discussed and how this can be mitigated.

What: Casing Failures in High Temperature Wells
 Tuesday, August 30th, 2022.
5:50-6:10 PM
Peppermill Resort Spa Casino, Reno, Nevada
Track: Technical Program
Technical Session: 4C: FORGE Activities, Progress & Plans | Deeper and Hotter: Towards Production from Superhot Resources. More info on session at GRC‘s website

The GRC Conference

With the international geothermal power market growing and projects currently under development in all corners of the world, the 2022 Expo and GRC conference taking place August 28th-31st in Reno will be an exciting international gathering of geothermal industry leaders, developers, academics, financiers and policy leaders with the aim of building relationships, discuss opportunities and challenges, educate on the latest technologies and innovations in geothermal energy. and geothermal enthusiasts.

Description of the technical session:

  • 4:30 PM - 4:50 PM, 228: Characterizing the Induced Microseismicity of the 2019 Utah FORGE Well Stimulation
  • 4:50 PM - 5:10 PM, 232: Monitoring of Reservoir Scale Microseismicity using Downhole Geophone Arrays at the Utah FORGE EGS Project Area
  • 5:10 PM - 5:30 PM, 283: Development of a Coupled Multi-Field Utah FORGE Native State Model: Phase 3 Update
  • 5:30 PM - 5:50 PM, 104: Improved Integrity of the Production Casing in Moderate- to Ultra-High-Temperature Geothermal Wells using Flexible Couplings
  • 5:50 PM - 6:10 PM, 133: Casing failures in high temperature wells
  • 6:10 PM - 6:30 PM, 217: Creep behaviour of casing materials