PT Chevron Pacific Indonesia (CPI) operates two major fields in Sumatra, Duri and Minas. Additionally CPI manages Dumai Wharf, the final terminal for oil transport.
The majority of CPI's Sumatran production in 2014 came from fields in the Rokan PSC. Duri, the largest field, has been using steamflooding technology to improve production since 1985 and is one of the world's largest steamflood developments. In 2014, steam injection was deployed in 70 percent of the field.
We continued to implement projects designed to sustain production, increase recovery and improve reliability from existing reservoirs. Chevron has added approximately 800 wells to support existing production operations. In Area 13 of the Duri Field, the first steam injection was accomplished in 2014 at the steamflood expansion project.
In 2014, 69 more production wells were drilled in the Minas Field, and work continued to optimize the waterflood program there. In 2014, we assessed the results of a 2013 pilot project that used a chemical injection process to further improve the recovery of light oil in the Minas and surrounding fields. Planning for a full-scale pilot continued in 2015.
Crude oil from Chevron’s Sumatra production fields is transported to Dumai through a pipeline system extending some 600 km, and reaches a tank farm with a storage capacity of 5.1 million barrels. From the tank farm, oil is pumped to the Pertamina refinery and oil tankers at Dumai Wharf. Using high-capacity pumps, Dumai Wharf can load four tankers simultaneously.