Offshore staff
LONDON – IOG says the recent Blythe H2 well control issue in the southern UK North Sea has been successfully isolated without a need for sidetracking the well. Problems arose in the Hauptdolomit interval.
A 7-inch liner was run and cemented to isolate the kick/loss zone. Under a modified drilling plan, the 6-inch hole section started from the 7-inch liner shoe at 9,860 ft MD, and continued on to the Rotliegendes reservoir section, at a depth of 11,660 ft MD.
Drilling is continuing to the anticipated TD of about 13,000 ft MD, and first gas from the well should flow by mid-year.
Initially, production from Blythe H2 well will ramp up to manage the export of resident pipeline fluids into the Bacton reception area on the Norfolk coast. Rates should then climb to 30 MMcf/d to 40 MMcf/d.
IOG expects the existing Blythe H1 well to be shut down once the H2 well is fully onstream to reduce water production into the pipeline. However, H1 will remain available for production.
CEO Rupert Newall said, "The IOG, Petrofac and Shelf teams have worked extremely hard to isolate the kick/loss zone safely and successfully on Blythe H2...The teams are working tirelessly to ensure the remainder of the well as well as the hookup and commissioning of the new well into the Saturn Banks Pipeline system is delivered as efficiently as possible."
05.15.2023
