Premier details well improvement work offshore Indonesia, Vietnam

Premier Oil is preparing for a jack-up rig campaign next year on its fields in the Natuna Sea, offshore Indonesia.

This will include a workover and infill well on the Anoa field and a further workover on a Gajah Baru well. In addition, the company could at some point drill a well to test Anoa’s northern flank, to help backfill its gas sales contracts to Singapore which currently run until 2028.

In May, Russia’s Zarubezhneft agreed to farm into 50% of Premier’s Tuna discoveries. Pending Indonesian government approval, Zarubezhneft would carry Premier for its share of a two well appraisal campaign in 2021.

Last January the company secured a one-year extension to Tuna PSC exploration period to cover appraisal drilling and submission of a plan of development. But in light of delays caused by COVID-19, the company plans to seek a further one-year extension to March 2022.

A review of 3D seismic over Premier’s Andaman Sea licences has revealed numerous low-risk, potentially significant gas prospects. The company plans to drill its first well in the sea on the Andaman II licence, also participating in drilling on the Mubadala Petroleum-operated South Andaman licence.

Offshore southern Vietnam, there have been three well intervention campaigns this year on the Chim Sáo and Dua fields in block 12W.

Further interventions could follow this year and next to offset natural decline and optimise offtake from Chim Sáo.

In Brazil’s offshore Ceará basin, Premier had contracted the drillship Valaris DS-9 to drill a well this July on the stacked Berimbau/Maraca prospect, but this was deferred due to COVID-19 and rig contract was terminated.

Source: Offshore Magazine