United Kingdom Oil and Gas Fields: 50th Anniversary Commemorative Volume
Geological Society Memoir 52 records the extraordinary journey of more than 50 years that has led to the development of some 458 oil and gas fields on the UK Continental Shelf (UKCS). It contains papers on almost 150 onshore and offshore fields in all of the UK's main petroliferous basins. These papers range from look-backs on some of the first-developed gas fields in the Southern North Sea, to papers on fields that have only just been brought into production or may still remain undeveloped, and includes two candidate CO2 sequestration projects.
These papers are intended to provide a consistent summary of the exploration, appraisal, development and production history of each field, leading to the current subsurface understanding which is described in greater detail. As such, the Memoir will be an enduring reference source for those exploring for, developing, producing hydrocarbons and sequestering CO2 on the UKCS in the coming decades. It encapsulates the petroleum industry's deep subsurface knowledge accrued over more than 50 years of exploration and production.
The Endurance CO2 storage site, Blocks 42/25 and 43/21, UK North Sea
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Published:October 30, 2020
Abstract
The Endurance, four-way, dip-closed structure in UK Blocks 42/25 and 43/21 occurs over a salt swell diapir and within Triassic and younger strata. The Lower Triassic Bunter Sandstone Formation reservoir within the structure was tested twice for natural gas (in 1970 and 1990) but both wells were dry. The reservoir is both thick and high quality and, as such, an excellent candidate site for subsurface CO2 storage.
In 2013 a consortium led by National Grid Carbon drilled an appraisal well on the structure and undertook an injection test ahead of a planned development of Endurance as the first bespoke storage site on the UK Continental Shelf with an expected injection rate of 2.68 × 106 t of dense phase CO2 each year for 20 years. The site was not developed following the UK Government's removal of financial support for carbon capture and storage (CCS) demonstration projects, but it is hoped with the recent March 2020 Budget that government support for CCS may now be back on track.
- aquifers
- Atlantic Ocean
- Bunter
- burial
- carbon dioxide
- carbon sequestration
- combustion
- compartmentalization
- deep aquifers
- diapirs
- discharge
- geophysical methods
- geophysical profiles
- geophysical surveys
- greenhouse gases
- ground water
- history
- lineaments
- Lower Triassic
- Mesozoic
- North Atlantic
- North Sea
- offshore
- oil and gas fields
- petroleum
- power plants
- production
- reservoir properties
- reservoir rocks
- salt domes
- sealing
- seismic methods
- seismic profiles
- storage coefficient
- stratigraphic traps
- surveys
- tectonics
- tight sands
- traps
- Triassic
- underground installations
- underground storage
- Rotliegend Group
- Ensign Field