Creating advanced CO₂ storage systems
Welltec participates in a wide range of projects around the world, delivering advanced well completion solutions designed to operate under challenging subsurface conditions, and ensure long-term well integrity.
In Denmark, we are a central partner to the ambitious Greensand CCS Project led by INEOS Energy and Wintershall Dea.
Through continual development of our completions portfolio, we are expanding on knowledge from high CO₂ EOR projects and high temperature geothermal applications to create advanced systems that meet the increasing global demand for Carbon Capture Storage (CCS).
Welltec is taking an active role in meeting with CCS operators globally, bringing vast experience of well construction and maintenance to industry advisory boards, government strategies and D&E funding programs.
The operational phase for CO₂ storage is expected to span up to 50 years, and within this period there is a requirement for monitoring the system to verify long-term well integrity and storage performance.
When engaging with operators we apply the Welltec risk-based approach to well completion design, minimizing risk and uncertainties.
Securing well integrity
Our well completion technology enables long-term CO₂ storage by ensuring well integrity and preventing atmospheric release.
The CO₂-resistant Welltec® Annular Barrier (WAB®) safeguards against annular leakage and groundwater contamination, delivering robust zonal isolation.
Tested to ISO 14310 V0—the highest gas-tight standard—Welltec packers expand precisely to match wellbore geometry, providing life-of-well sealing and seamless integration within CCS systems.
Advanced CO₂ testing capabilities
Welltec’s Test Flow Loop in Esbjerg, Denmark delivers full-scale testing of downhole components in realistic CO₂ storage conditions—high pressure, high temperature, and tailored impurity mixes.
Engineered for flexibility, it enables rapid qualification of materials, barriers, and equipment in liquid, dense, and supercritical CO₂ phases.
The facility supports long-term corrosion testing, impurity control, and lifecycle validation of metallic and elastomeric components, ensuring reliability in CCUS operations
When combining WAB technology with a Welltec Flow Valve (WFV™), the solutions provide the option to distribute the CO₂ injection between more reservoir units and control potential back production for use in power-to-X solutions.
Project Greensand
Project Greensand is an ambitious and innovative initiative to develop new ways to capture and store CO₂. Welltec® has a long history of engineering and delivering solutions that target complex challenges in the energy sector and now looks to help address and meet the 70 percent reduction of CO₂ targets by 2030, as set by Danish government.
With 20+ years of combined experience in oil & gas sector, Lia has been exposed to diversified range of roles, starting from well construction to business development and innovation.
Lia offers strong knowledge within wells, innovation toolkit, business development as well as wide network within emerging market in energy transition area.
Having worked in the upstream sector of oil & gas and geothermal, Joven offers his technical background in well construction and completion to Geothermal and CCUS clients. Joven handles Welltec Green Energy initiatives across APAC and Europe, and collaborates with clients by providing value-added completion solutions focusing on well integrity and risk mitigation.
With 16+ years of experience in the service sector, Yosafat offers a strong technical background for well construction and lower completion solutions to the customer's challenges. Focusing on customer added value.
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.