Oil&Gas: Gas Storage Denmark Permanent abandonment
Project Description
Well Engineering Partners has successfully designed and concluded execution of the permanent abandonment of three wells in Tønder (TN-3, 4, & 5), Denmark. These wells were drilled in the 1980s for gas storage and had been shut in since then.
The abandonment operations involved detailed preparatory work, wireline investigation operations and final P&A operations by cement plugs placement with a hydraulic workover unit from WellGear in an IPM setup of services with WSG (Well Services Group).
Cement plugs were successfully installed at critical depths isolating Nitrogen / brine reservoirs for a successful abandonment through PWC (Perforate-Wash-Cement) cement plugs as verified internal and external barriers. Ad-hoc well test operations were also planned and executed on well TN-3 simultaneously with P&A operations.
This project was executed with no incidents / accidents, ensuring compliance with Danish Energy Agency (DEA) guidelines. A big thanks to our dedicated team and service providers for their expertise and hard work in completing this extensive project.
Challenges
Last minute well test to be included and executed in the scope of work.
Role of WEP
Well engineering, planning, execution, writing (pre-) P&A design documents and execution programs (including well test) as per Danish Energy Agency legislation. During operations, SSV onsite and office support.
Overview
Client
Gas Storage Denmark A/SLocation
TønderWell
TN-3, TN-4 and TN-5Date
Start drilling: 05 August 2024
End execution: 15 November 2024Objective
Permanent abandonment of three wells in Tønder & well test TN-3Depth
Depth (MD): ~2000m
Depth (TVD): ~2000m