scholarly journals Suitability of Legacy Subsurface Data for Nascent Geoenergy Activities Onshore United Kingdom

2021 ◽  
Vol 9 ◽  
Author(s):  
Mark T. Ireland ◽  
Rachel Brown ◽  
Miles P. Wilson ◽  
Paul B. Stratesky ◽  
Andrew Kingdon ◽  
...  
Keyword(s):  
United Kingdom ◽  
Seismic Reflection ◽  
Carbon Capture ◽  
Rapid Development ◽  
Carbon Capture And Storage ◽  
Quality Criteria ◽  
Data Uncertainty ◽  
Public Confidence ◽  
Borehole Data ◽  
Spatial Coverage

The decarbonization of energy systems to achieve net zero carbon emissions will likely see the rapid development of carbon capture and storage, energy storage in the subsurface and geothermal energy projects. Subsurface data, in particular seismic reflection surveys and borehole data are vital for geoscientists and engineers to carry out comprehensive assessments of both the opportunities and risks for these developments. Their cost of acquisition means that such legacy data are commonly the only mechanism for site selection so biased data distribution must be accommodated. Here, legacy subsurface data from United Kingdom onshore hydrocarbon and coal exploration in the United Kingdom are collated and reviewed for their suitability for geoenergy activities. We provide a description of the spatial coverage and a chronology of the acquisition of key seismic reflection and borehole data, as well as examine data resolution and limitations. We discuss the implications of spatial variability in subsurface datasets and the associated subsurface uncertainty as this is vitally important to understanding the suitability of data for decision making. We examine societal aspects of data uncertainty and discuss that when the same data are used to communicate subsurface uncertainty and risk, the source of the data should also be considered, especially where data are not easily publicly accessible. Understanding the provenance and quality criteria of data are vitally important for future geoenergy activities and public confidence in subsurface activities. Finally, we ask should there be minimum data collection criterion, such as resolution requirements, ahead of subsurface activities with potentially significant impacts to the environment, economy, and society?

Stratigraphic and sedimentological characterisation of the Late Cretaceous post-rift intra Lange Sandstones of the Gimsan Basin and Grinda Graben (Halten Terrace, Norwegian Sea)

2021 ◽  
pp. SP495-2021-72
Author(s):  
Domenico Chiarella ◽  
Daniel Joel
Keyword(s):  
Late Cretaceous ◽  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Coarse Grained ◽  
Borehole Data ◽  
Norwegian Sea ◽  
Marine Gravity ◽  
History Of ◽  
Gravity Driven ◽  
Reservoir Potentiality

AbstractDeep-marine gravity-driven deposits represent one of the more investigated depositional systems due to their potential interest as target for exploration and carbon capture and storage activities, as well as an important record of the depositional history of a basin through time. Although the Halten Terrace (Norwegian Sea) is one of the main successful exploration areas, we still have poor understanding of the post-rift Cretaceous interval. Here, 3D seismic reflection and borehole data are integrated to investigate the stratigraphic distribution and sedimentological characteristics of the Cenomanian-Turonian intra Lange Sandstones in the Gimsan Basin and Grinda Graben. The Lange Formation records the deposition in a deep-marine environment of a thousand meter thick shale unit punctuated by tens of meters thick gravity-driven coarse-grained sandstone intervals sourced from the Norwegian mainland. The presence of gravity-driven deposits and the deep-marine setting is supported by seismic interpretation, architectural elements and the facies analysis of cored material acquired within the studied stratigraphic interval. Borehole data indicate the presence of both turbidites and hybrid-event beds rich in mud content. The results of this study have implications for the understanding of the distribution and reservoir potentiality of the Late Cretaceous Lange Formation in the Halten Terrace.

The Analysis of the Necessity and Feasibility of Carbon Dioxide Storage in China

2013 ◽  
Vol 295-298 ◽  
pp. 2223-2226
Author(s):  
Chuan Lin Huo ◽  
Cheng Huo ◽  
Dao Ming Guan
Keyword(s):  
Co2 Emissions ◽  
Emission Reduction ◽  
Carbon Capture ◽  
Fossil Fuels ◽  
Rapid Development ◽  
Carbon Capture And Storage ◽  
Practical Significance ◽  
Co2 Emission Reduction ◽  
Protection Technology ◽  
Short Time

Carbon capture and storage (CCS) is a significant strategic climate protection technology, and has become the most possibility and practical significance approach of emission reduction. CCS technology is the means to reduce the amount of CO2 into the atmosphere in the case of no reducing the amount of fossil fuels. China's CO2 emissions are the second in the world and it is difficult to change the current energy consumption in a short time. CO2 emissions will continue to increase with the rapid development of China's economy which will bring the huge CO2 emission reduction pressure. In this paper the CCS technology is introduced and the necessity and feasibility of CCS in China are analysed.

scholarly journals Uncertainty assessment applied to marine subsurface datasets

2020 ◽  
Vol 54 (1) ◽  
pp. qjegh2020-028 ◽  
Author(s):  
Lars Kint ◽  
Vasilis Hademenos ◽  
Robin De Mol ◽  
Jan Stafleu ◽  
Sytze van Heteren ◽  
...  
Keyword(s):  
Selection Procedure ◽  
Uncertainty Assessment ◽  
Data Uncertainty ◽  
Borehole Data ◽  
Content Type ◽  
Density Reduction ◽  
The North ◽  
Spatial Coverage ◽  
Data Products ◽  
Voxel Model

A recently released voxel model quantifying aggregate resources of the Belgian part of the North Sea includes lithological properties of all Quaternary sediments and modelling-related uncertainty. As the underlying borehole data come from various sources and cover a long time-span, data-related uncertainties should be accounted for as well. Applying a tiered data-uncertainty assessment to a composite lithology dataset with uniform, standardized lithological descriptions and rigorously completed metadata fields, uncertainties were qualified and quantified for positioning, sampling and vintage. The uncertainty on horizontal positioning combines navigational errors, on-board and off-deck offsets and underwater drift. Sampling-gear uncertainty evaluates the suitability of each instrument in terms of its efficiency of sediment yield per lithological class. Vintage uncertainty provides a likelihood of temporal change since the moment of sampling, using the mobility of fine-scale bedforms as an indicator. For each uncertainty component, quality flags from 1 (very uncertain) to 5 (very certain) were defined and converted into corresponding uncertainty percentages meeting the input requirements of the voxel model. Obviously, an uncertainty-based data selection procedure, aimed at improving the confidence of data products, reduces data density. Whether or not this density reduction is detrimental to the spatial coverage of data products, will depend on their intended use. At the very least, demonstrable reductions in spatial coverage will help to highlight the need for future data acquisition and to optimize survey plans. By opening up our subsurface model with associated data uncertainties in a public decision support application, policy makers and other end users are better able to visualize overall confidence and identify areas with insufficient coverage meeting their needs. Having to work with a borehole dataset that is increasingly limited with depth below the seabed, engineering geologists and geospatial analysts in particular will profit from a better visualization of data-related uncertainty.Thematic collection: This article is part of the Mapping the Geology and Topography of the European Seas (EMODnet) collection available at: https://www.lyellcollection.org/cc/EMODnet

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