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IEV Holdings said the production trial from CLS-1TW in Cilamaya Structure has been suspended to prepare for a change in well completion.
The group commenced production from CLS-1TW on Oct 30 last year and has produced a cumulative of 2,191 barrels during the period to Dec 27, 2016 by natural flow.
For long-term production, however, the CLS-1TW will require a change in well completion to allow chemical stimulation and a sidetrack to an up dip location, said the Singapore-based firm in an announcement to the Singapore Exchange.
The CLS-1TW will be suspended pending the preparation of the programme and until approval of Pertamina to proceed with the workover of the well, it added.