Enabling large bore multi-stage completions for optimal injection/production on EGS wells
Welltec® supports the development of enhanced geothermal systems (EGS) with durable, high-performance solutions designed to meet the specific challenges of low-permeability, high-temperature reservoirs.
Tested to operate at temperatures above 330°C, our robust annular isolation systems withstand thermal cycling and formation stress, protecting well integrity where traditional methods fall short. In EGS developments, the combination of multi-well pad layouts, highly deviated trajectories, stimulation operations, and significant thermal cycling places elevated demands on liner hanger performance. The Welltec Expandable Anchor (WEA) for Liner Hanger – with 1,000,000 lbs of anchoring capacity – provides the high-load capability and thermal resilience needed to secure liners as part of the lower completion, safeguarding well integrity and minimizing unplanned intervention.
Our all-metal expandable packers ensure reliable zonal isolation and controlled stimulation for efficient heat transfer in EGS systems.
We are proud to have received funding from the Frontier Observatory for Research in Geothermal Energy (FORGE) for two innovative projects that support the advancement of geothermal technology:
In partnership with the University of Oklahoma, the current project aims to develop multistage isolation systems capable of withstanding extreme geothermal downhole conditions. We are honored to be part of this important initiative and are applying our innovative technology to help shape the future of sustainable power generation.
Geothermal Association of Kenya (GAK)
Welltec officially joined the Geothermal Association of Kenya in January 2022, participating in a community of geothermal sector stakeholders from more than 90 different countries. Together, we aim to collaborate, research, and find innovative ways to develop and grow the geothermal sector in Kenya, and indeed across the globe.
U.S. DOE FORGE program
The US Department of Energy (DOE) Frontier Observatory for Research in Geothermal Energy (FORGE) is a dedicated test site to support cutting-edge technology and accelerate the development of EGS. Located in Milford (Utah), the area is already home to geothermal power plants. The test site formation exhibits proven temperature of around 230° Celsius and is fitted with multiple wells and seismic data monitoring equipment.
As of early 2021, the FORGE site is home to a first of its kind 65-degree deviated well, drilled into crystalline granite. FORGE is one of a series of EGS projects throughout the world to be committed to developing EGS.
ZoDrEx: Contribute to developing robust isolation for deep geothermal wells in Europe
With the support of Geothermica and the Danish Energy Agency, Welltec has joined forces with nine European partners to demonstrate drilling, completion, and production technologies to increase the technical and economic success of deep geothermal projects.
The consortium’s ambition is to improve technologies for establishment of deep geothermal wells through improving drilling techniques, improving corrosion protection and monitoring.
Welltec’s completion contribution to ZoDrEx will be the demonstration of completions equipment in a crystalline granite formation in a rock lab. The development of a high expansion metal packer will manage large-scale ovalization sections of the borehole, and control propagation when establishing EGS.
Minimizing environment impact
We believe in a fair and inclusive energy transition.
That is why we are applying our deep industry knowledge in new energy solutions to prepare for how we can produce more sustainable energy in the future.