Petrovietnam is to start production from its jacketed Te Giac Trang field in block 16-1, offshore Vietnam, doubling its output to 95,000 barrels per day.

Soco International, which has a 28.5% interest in the field, said that from next month 55,000bpd will be extracted from the field.

Hoang Long, operator of the block, signed a $44m deal with Petrovietnam Equipment Assembly & Metal to construct the topsides of the H4 jacket between now and May 2012, reports Reuters.

Production from the H4 jacket is expected to start from August 2012. With the H4 development, Hoang Long will add 40,000bpd to Te Giac Trang’s output.