Valhall is an oil field in the Norwegian sector of the North Sea. Discovered in 1975, production began in 1982 and is expected to continue until 2050. Valhall is located in 70 metres of water. It produces from chalk in the Tor and Hod Formations of Late Cretaceous age. The reservoir depth is approximately 2,400 metres.
Development
The field was originally developed with three facilities (QP, DP and PCP) but now the complex consists of five separate steel platforms that are bridge-connected. There are also two unmanned flank platforms, one in the south and one in the north, both around 6 kilometres from the field centre.
Quarters Platform (QP)
The QP was built in 1979 and started being used in July 1981. It was bridge-linked to PCP. It had accommodation for 208 people. This module is undergoing deconstruction at the demolition yard in Leirvik, NOR.
Drilling Platform (DP)
The DP is situated centrally and has 30 well slots. The platform started operation on 17 December 1981 with the first covered derrick. It was bridge-linked to PCP.