Duration - 1½ hours (less if we can get permission to park at the site)
Cost - £35
Meeting place - depends on numbers of vehicles that have to be parked.
Equipment & brief risk assessment
No previous knowledge is necessary.
Wear good footwear and clothing appropriate for the weather.
Geological equipment - none.
Walking distance - none if we can park at the site, otherwise a rather tedious and
boring ½ mile or so each way.
Risks - site traffic on the access road.
Whilst we are not allowed access to the site, we can stand outside the perimeter
fence and see the “nodding donkeys” extracting oil from deep underground. We will
discuss why and where oil is found in West Sussex and the details of the Singleton
The Singleton oil field was discovered in 1989 and two production wells were drilled
in 1991 to a depth of approx. 4,100 feet. There are now six wells producing about
600 barrels of oil per day (1 barrel = approx. 35 gallons).The bores deviate to the
south with up to 2,000 feet horizontally drilled through the reservoir rock of Great
Oolite limestone. The site is currently being expanded with a new multi-lateral horizontal
production well to the south-west. This is 16,800 feet in length with 4,000 feet
of it within the reservoir. Further development will increase production up to 1,000
barrels per day and, ultimately, 1,500 barrels per day. Singleton has produced 3.7
million barrels of oil since 1989 an has an estimated capacity of 107 million barrels
of oil with a potential recovery factor of 10%.