HPHT fields in the North Sea account for a significant
portion of UK total production. Expediting the successful exploitation of new
HPHT structures in the UKCS can play a major role in maximising economic
recovery and extending the asset life of existing infrastructure. While HPHT
conditions are recorded in a number of UKCS basins, by far the largest resource
attributable to HPHT producing fields, discoveries, and mature prospects lies
within the Central Graben.
This pressure dataset, counting 194 wells, was generated
from released well data in the NDR by Ikon Science. The dataset focusses on
pressure data from the Jurassic and Triassic in the Central North Sea but also
contains pressure data from Cretaceous intervals. The pressure data includes
formation pressure and overpressure and is categorised by fluid type, test
type/quality, and stratigraphy. Aquifer overpressure is derived for many wells,
with an uncertainty range applied where hydrocarbon water contact or structural
spill is uncertain. A pressure cell map interpreted on the basis of this
dataset by the NSTA is published separately on the Open Data Site (Link to the
interactive pressure cell map: https://www.arcgis.com/apps/webappviewer/index.html?id=cd62b9ec3b5644558aa12d37f354bab7
).