SINGAPORE — A program of hull and tank inspection, repairs and maintenance continues on the Montara Venture FPSO offshore northwest Australia, with the facility offline following an offshore oil leak.
In recent weeks, operator Jadestone Energy said oil cargo tank 2C, the location of the originally identified hull defect that led to a small release of oil in June, has been removed with a permanent repair effected.
Visual inspection of the tank has confirmed the overall condition is sound but with some minor defects still to be addressed.
Ballast water tank 4S, the bulkhead location of a second defect identified in August, also has been repaired, and repairs are progressing on various smaller defects that came to light as part of a wider inspection of the tank.
At present, however, the company remains unable to advise on a restart date for Montara’s production.
At the Stag Field in the same regions, two newly drilled infill wells, Stag-50H and 51H, are performing in line with expectations. The Valaris-107 jackup is running final completions on both wells and should move off location later this month.