document: Premier Oil Vietnam Offshore BV has completed two infill wells campaign at Chim Sao field, in Block 12W, Nan Con Son Basin, offshore Vietnam, on or around 20 November 2017. Drilling commenced on or around 3 September 2017 using the âPV Drilling VIâ J/U. The wells will be used to increase the declining production rate in the fields.  The last development drilling activity in Block 12W was conducted in the Chim Sao field with two injector wells completed in late 2014, for reservoir pressure maintenance. The block consists of two producing fields, Chim Sao and Dua field. The Chim Sao and Dua fields were both discovered in 2006. Oil production from Chim Sao commenced in October 2011 and gas production in 2012. The Dua field came onstream on July 2014 via a subsea tie-back to Chim Sao field. Average production from Chim Sao and Dua fields are approximately 22,000 bo/d in September 2017. Premier Oil is operator of Block 12W with a 53.125% interest. Partners in the block are Santos Petroleum Ventures BV (31.875%) and PVEP (15%).
summary: Vietnam (Nam Con Son B.) ? op. by PREMIER (53.125%, SANTOS 31.875%, PETROVIET 15.0%) in Block 12W