The program is designed to increase the field’s overall recovery rate through the application of polymer technology.
Stage 1 of the EOR project, which follows several EOR pilot programs at theCaptain field, will involve drilling up to six long-reach horizontal injection wells within the existing Captain platform area.
Greta Lydecker, Managing Director, Chevron Upstream Europe, said: “Sanctioning Stage 1 EOR at Captain is an important milestone in the development of the technology, which we believe will improve the recovery rate from older fields and help extend the life of assets.
“The application of advanced EOR technology in the North Sea supports the UK government’s strategy of Maximizing Economic Recovery (MER UK) of its offshore energy resource, and this is in direct alignment with Chevron Upstream’s strategy of extracting value from our existing asset base.”
Oil & Gas Authority (OGA) Area Manager Eric Marston said: “Polymer EOR has the potential to increase recovery, extend field life, and stimulate field redevelopments…Chevron, along with BP, Shell and Statoil, has been a driving force behind the industry-led EOR task force.”
Marston added that their findings will be included in the OGA’s ‘Polymer Enhanced Oil Recovery – Industry Lessons Learned’ publication, due to be published soon.
Texaco (since merged with Chevron) discovered the billion-bbl Captain field in 1977 in UK block 13/22a. First production followed in March, with the development driven by advances in horizontal drilling and downhole pumps.
The production complex comprises a wellhead protector platform and bridge-linked platform connected to an FPSO. Chevron operates with an 85% interest, in partnership with Dana Petroleum (15%).