The development of Van Gogh will involve the installation of subsea well production equipment and connection to a Floating Production and Storage Offtake (FPSO) vessel. In addition, there will be drilling associated with the proposed ten production wells and three disposal wells, of which one will be for gas re-injection and two for water re-injection.
The development footprint and disturbance to the seabed is minimal and will be limited to a mooring system for the FPSO, flexible flowlines and subsea manifolds, wells and interconnecting flowlines.
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FPSO Diagram |
The FPSO, a converted oil tanker, can be released from the subsea flowlines and infrastructure in the event of extreme weather conditions, such as cyclones. The FPSO will temporarily relocate into safer waters, then return and reconnect to the mooring system. From time to time (weekly initially, then extending as the oil field declines), oil tankers will connect to the FPSO for the transfer of the crude oil via a retractable hose, exporting it to national and overseas refineries.
Importantly, re-injection of the produced formation water (PFW) and surplus natural gas from the subsea wells back into the reservoir will minimise flaring and the release of carbon dioxide gases into the atmosphere as well as the discharge of the water into the ocean. Overboard discharge of treated PFW and flaring of natural gas may occur periodically during the initial commissioning of the FPSO or for short periods during operations.
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Proposed Van Gogh development timetable
Subject to obtaining all necessary approvals, the timing for the development of Van Gogh is likely to be:
| Apr 2007 – ongoing | commence consultation with community and government bodies |
| May - June 2007 | exploration drilling |
| Jul 2007 | submission of the environmental assessment document |
| Dec 2007 - Nov 2008 | production drilling - Phase I |
| Jun 2009 | production drilling - Phase II |
| Oct 2008 | all government environmental approvals received |
| Oct 2008 - Apr 2009 | onsite installation of subsea equipment |
| Nov - Dec 2009 | commissioning of development and FPSO |
| Dec 2009 | production of first oil |

