Completion packers
Metal expandable packers provide well-construction, zonal and abandonment isolation.
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Metal expandable packers provide well-construction, zonal and abandonment isolation.
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E-line and coiled-tubing tools for extended-reach and multilateral wells.
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Debris recovery, jetting, honing, milling and targeted plug heating.
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Controlled hardware milling and non-explosive plug and packer setting.
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Measured recovery operations and downhole sensor or camera assessment.
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Annular remediation, thin-wall patches and retrievable reservoir barriers.
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High-temperature completion engineering and Esbjerg corrosion/component testing.
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Non-explosive cutting, pressure communication and partner robotic control-line retrieval.
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Metal expandable anchors secure plugs, packers, liner hangers and tieback liners.
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Hydraulic stroking and engagement tools manipulate downhole valves and sleeves.
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Targeted casing expansion to remediate annular leakage.
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CO₂ corrosion and component testing at the Esbjerg Test Flow Loop.
Price on request
Coiled-tubing reach extension using fluid-driven tractors.
Price on request
Engineering and deployment of expandable completion assemblies.
Price on request
Measured retrieval of plugs, cables, toolstrings and irregular objects.
Price on request
Controlled milling of downhole hardware, scale and restrictions.
Price on request
E-line conveyance into deviated, horizontal and multilateral wells.
Price on request
Completion engineering and remediation for geothermal wells.
Price on request
Tubular cutting and robotic intervention for abandonment preparation.
Price on request
Non-explosive setting and retrieval of plugs and packers.
Price on request
Retrievable barriers for reservoir isolation and water shutoff.
Price on request
Wireline repair of tubing and casing leaks.
Price on request
Controlled manipulation of downhole valves and sleeves.
Price on request
Recovery and removal of wellbore debris and deposits.
Price on request
Downhole imaging, hardware identification and pressure/temperature diagnostics.
TotalEnergies
Welltec developed and tested a custom locating bit, then used Well Miller CVF from an RLWI vessel to mill an Incoloy 925 gate valve and recover the coupon. Milling took 17 hours and enabled Christmas-tree replacement.
Three anonymous Central/East Asian operations used Saturn casing expansion to densify existing cement. One gas injector fell from 92 bar to zero SCP, maintained for two years, allowing a planned sidetrack to be cancelled; other wells had different residual pressures.
A Springblade patch sealed tubing-to-annulus communication below a safety valve. The repair passed a 180-bar test with 4.62 mm measured ID reduction, and production restarted within 24 hours.
Well Cleaner PST recovered more than two tons of proppant over 43 runs, switching from High Flow to Large Drawdown. This enabled leak verification and plug setting; the planned coiled-tubing operation was cancelled.
Three planned runs used imaging, Wellgrab CLAW, an overshot and Well Stroker to recover curled cable, a stuck plug and BHA. Production resumed after a four-month shutdown.
An adapted 812WAB supported cement and casing during relining of a shut-in geothermal well. Deployment used water cooling to keep temperature at or below 212 °F; production temperature was 545 °F. These describe separate operating phases.
After retrieval of an existing patch and Wishbone Honer cleaning, a Springblade Patch sealed a leak at 5,000 ft. A 172-bar test held for 30 minutes with no pressure loss and a 7 mm ID reduction.
Well Tractor CVT conveyed a fibre-optic rod into a 13,100-ft lateral of a 21,000-ft measured-depth gas well. Monitoring continued for three days; more than four hours were saved against alternative conveyance.
TotalEnergies
Welltec and Axter participated in a TotalEnergies-initiated test at Ullrigg, co-financed through the NORCE P&A programme. One run scanned, milled, cut and retrieved a control line; a second placed two bridging sleeves. Operational time was under 12 hours. This was a test, not completed field abandonment.
Equinor
Forty DAR assemblies were installed on 9 April 2026 across 12 compartments in a 1500 m horizontal open-hole interval at Johan Castberg. This was the start of a field trial.
A 720-hour semi-stagnant test simulated formation-water flowback during long-term shut-in, using 50 vol% brine at downhole pressure and temperature. Impurities were replenished every 48 hours, with crevice corrosion, stress corrosion cracking, pH and oxygen monitored.
ISO 9001
Quality management certification by DNV-GL, maintained through audits across the Welltec group.
API specification certification: Esbjerg and Brazil
API specification certifications at the Esbjerg and Brazil sites; the group programme covers Q1/Q2 requirements. Individual licence-to-site mapping is unspecified.
INEOS Energy: awarded intervention contract
Welltec announced a three-year intervention contract on 1 September 2026 for offshore Danish fields using Welltec and alliance partners. Retained as a contract relationship; completed work and results are not documented in this source.
2025 OWI Downhole Innovation Award: Wellgrab
Downhole technology innovation award for the Wellgrab platform.
Welltec develops and deploys completion, conveyance, mechanical intervention, fishing and well-integrity technology for oil, gas and geothermal operators. Danish operations include intervention manufacturing in Allerød, completion manufacturing in Esbjerg and an Esbjerg CO₂ test facility. Services combine application engineering, specialized downhole tools and field execution, with selected partner technologies integrated into the offering.
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Updated Sep 13, 2026
