Well-cementing services

Tender description

Provision of cementing services during deep geothermal drilling and completion operations at the Eden Project, UK. Drilling will be almost solely in granite at elevated temperature. Bidders should be able to perform and monitor cementing operations in granite or similar crystalline rock, with an emphasis on expertise in hot underground conditions and using weight reduced cements. They must demonstrate their ability to install their equipment and perform cementations on large land rigs (> 300 tons). Cementing services for drilling and completing a deep geothermal well. Tenderers will need an ability to perform and monitor cementing operations in granite or similar crystalline rock, with an emphasis on expertise in hot underground conditions and using weight reduced cements. They must be able to install their equipment and perform cementations on large land rigs (> 300 tons). There are four main operations: — Operation A — Cementing 20” Surface Casing in 26” Hole — Operation B — Cementing 13 3/8” Intermediate Casing in 17 1/2” Hole — Operation C — Cementing 9 5/8” Production Casing in 12 1/4” Hole — Operation D — Lost Circulation Cementation. Full technical requirements for each operation, and details of the hardware required, are set out in the tender documents.