One of the UK's most important Oil Pipelines is still expected to be shut down for "weeks rather than days", as first images of the repair site were released.
The crack was discovered last week at near Netherley in Aberdeenshire and a 300m safety cordon is in place.
Pipeline owner Ineos apologised to "our customers and communities".
The Forties pipeline carries about 40% of North Sea crude oil.
Speaking in the Scottish Parliament, Lib Dem MSP Mike Rumbles said people in Aberdeenshire were worried about the risk of further "undetected" cracks in the Forties pipeline.
Energy Minister Paul Wheelhouse said the Scottish government would be "seeking information from Ineos" in order to reassure people.