Overview
Document Type
Case Study
Date Published
September 20, 2018
Region
Latin America, Mexico
Additional information
Environment
Shelf
System Type
Planned
System Size
SET® Openhole Liner
Values Added
Mitigate risk, Enable planned completion, Reduce well cost, Maximize ID and TD, NPT reduced, Reach planned TD
Casing Size
9 7/8"
Expandable Size
7 5/8"
Liner Length
2600ft
Attachment
Next Study
Case Study
SET® ENABLES PLANNED COMPLETION OFFSHORE MEXICO
SUMMARY
An Operator drilling a well offshore Mexico, encountered a depleted sand formation while drilling below their 9-7/8 in. casing. The well was planned to be completed with 7 in. production string at TD and through the 9-7/8 in. casing. If conventional casing would be run to cover the depleted zone, the objective could not be achieved. The standard option would be running 7-5/8 in. conventional casing at this depth, then 5-1/2 in. production string through it to TD.
Instead, the decision was made to run a 7-5/8 x 9-7/8 in. SET® High-Performance (HP) Openhole Liner (OHL) to cover the depleted sand. This option would allow the operator to stay on initial design and run the 7 in. production casing through the expanded 7-5/8 in. liner to TD.
