Geothermal energy offers the highest capacity factor in the renewable market, and this energy source, requires a consistently high temperature fluid flow to ensure a reliable output.
Prolonged asset life via enhanced well construction
Geothermal well construction requires high temperature packer solutions to enhance build quality and protect the life span of the wellbore. These solutions also provide zonal isolation for stimulation and facilitate the remediation of wells that are shut-in due to casing collapse, burst or bulging, a common issue in this sector.
A geothermal well operator had to shut in its most prolific producer (20 MW) due to 13-3/8” casing failure and the loss of the 7” slotted production liner from acidic corrosion...
As geothermal technology keeps developing, our completions solutions offer the opportunity of taking control of geothermal reservoirs by minimizing the risks and challenges associated with formation uncertainties and high temperatures.
Welltec's solutions offer the growing geothermal market the option of both reviving existing 'shut-in' wells and creating new high-grade geothermal well constructions for a prolonged and reliable lifespan of providing a stable fluid/steam flow.
The WAB® (Welltec® Annular Barrier) allows for enhanced well integrity, high expansion zonal isolation of undesired inflow/outflow zones, and when coupled to our WFVTM (Welltec® Flow Valve) allows for access and flow control for both production and injection. Combined they offer the unique opportunity of establishing enhanced geothermal systems and ensuring reliable flow in conventional open and closed holes.
Current designs of the WAB are qualified for 300°C, which can be used for injection and production wells with the possibility of modifications to address specific requirements.
Acidic corrosion. Extreme pressures. Temperatures up to 600°F. Formation uncertainties. Take greater control with our new WAB® (Welltec® Annular Barrier) Solutions Portfolio with all-metal, high-temperature packers. In the challenging geothermal market, WAB ensures long-term safety and reliability—minimizing maintenance, maximizing asset life with reduced CAPEX and complexity.