The geometry, orientation and stacking patterns of sedimentary geobodies play a key control on fluid migration within subsurface reservoirs, aquifers, and repositories. Outcrops and more recently ...
Clay-coated grains play an important role in preserving reservoir quality in high-pressure, high-temperature (HPHT) sandstone reservoirs. Previous studies have shown that the completeness of coverage of clay coats effectively inhibits quartz cementation. However, the main ...
Bacteria are the most abundant forms of life we know on our planet, able to survive in a variety of habitats, that play an important role in mineral formation and transformation processes. Here, we present ...
Hydrothermal-reactor experiments were conducted to investigate the potential formation of chlorite and microquartz grain coatings on detrital quartz and feldspar grains, and to understand their role in inhibiting the formation of quartz and feldspar (albite) ...
Characterization of deeply buried sandstones and their reservoir quality is of paramount importance for exploring, developing, and subsurface storage of energy resources. High reservoir quality in deeply buried sandstones is commonly correlated with the occurrence ...
Core has traditionally played a key role in the characterisation of conventional and unconventional hydrocarbon reservoirs, from exploration to mature production, because it provides the only means to observe and make measurements on actual reservoir ...
Chlorite is recognized as a key mineral for preserving reservoir quality in deeply buried sandstones, as chlorite coatings inhibit the nucleation of quartz overgrowths. A limited understanding of the mechanisms and conditions under which these ...
The Subalpine Urgonian platform provides seismic-scale outcrops of interest to constrain the depositional organisation of Lower Cretaceous carbonate systems. Revising the biostratigraphy using ammonites, rudists, calcareous algae and orbitolinids and establishing regional stratigraphic correlations between ...
The Lower Cretaceous (Barremian–Aptian) Main Pay Member of the Zubair Formation is the main producing reservoir in the supergiant Rumaila oil field in southeast Iraq, one of the world’s largest oil fields. While ...
The Lower Cretaceous (Barremian) Zubair Formation in North Kuwait represents a major clastic pulse above the Ratawi Formation. Depositional environments and the sequence stratigraphic framework play a key part in the reservoir development and production ...
With the increasing interest in the development of shale reservoirs in Europe, cross-border geoscience co-operation is undoubtedly pivotal in understanding the laterally extensive and vastly underexplored unconventional plays in and around the North Sea. The ...
In the current cost-constrained environment for hydrocarbon exploitation, increasing emphasis is being placed on robust subsurface description and a clear understanding of the range of uncertainty associated with reservoir models. Structural heterogeneity, particularly at the ...
Paralic reservoirs reflect a range of clastic depositional environments developed along or near coastlines, including deltas, shoreline–shelf systems and estuaries. Such reservoirs provide the backbone of production in many mature basins around the world, ...
Petrographic, petrophysical and fracture analyses were carried out on middle Cretaceous platform carbonates of the southern Apennines (Italy) that represent an outcrop analogue of the Val d’Agri and Tempa Rossa reservoirs of the Basilicata ...
Thick successions of Cretaceous carbonates in the southern Apennines of Italy are of great economic interest since they host important aquifers and huge hydrocarbon accumulations. The reservoir of the Val d’Agri and Tempa Rossa ...
Alaska’s North Slope is a world-class petroleum basin, with some of the largest producing fields in North America. What is not widely known is that the North Slope also holds a vast resource of ...
A multidisciplinary study of the dolomitized bodies present among the Late Triassic to Late Cretaceous carbonate deposits of the Monti Lattari belt (Southern Apennines of Italy) compares the different dolomitization styles present within this succession ...
At the field scale (m's to 100's m) it is often difficult to define the true three-dimensional form of depositional units or facies within sediments or sedimentary rocks, due to inherent spatial bias in traditional ...
We performed field experiments at a well-studied aquifer test site to evaluate the geophysical method of seismic cross-hole tomography for high-resolution aquifer characterization. We address the challenge of finding meaningful relationships between seismic velocity and ...
Sedimentological outcrop analysis and sub-surface ground-penetrating radar (GPR) surveys are combined to characterize the three-dimensional sedimentary architecture of Quaternary coarse-grained fluvial deposits in the Neckar Valley (SW Germany). Two units characterized by different architectural styles ...
Quaternary sands and gravels form important, yet often highly heterogeneous economic deposits. Detailed 3-D analysis of the sedimentary structure and stratigraphy of these deposits allows for an accurate estimation of exploitable material. This paper presents ...
This paper investigates a Quaternary Gilbert-type gravel delta that was formed in an ice-marginal environment at the end of the last glacial period.Outcrop, sediment core and ground-penetrating radar (GPR) studies reveal the ...
Upper Ordovician syn-glacial deposits form a gas reservoir at the Tiguentourine field, Illizi Basin, Algeria. The reservoir geology of these glacial deposits has been investigated with the objective of understanding the widely varying thickness of ...
Ultrasonic borehole image tools are generally considered to be of limited value as an interpretative sedimentological tool because thick packages of a single lithology have similar acoustic properties resulting in resolution of very little diagnostic ...
Geological mapping and description of the Devonian and Silurian bedrock intervals within the Freeburg 7-1/2' Quadrangle around Freeburg and Kreamer, Snyder County, Pennsylvania.MacLachlan, D. B, Hoskins, D, M and Payne, ...
A stratigraphic and structural summary of 5 km of Upper Devonian strata of south-west Beara, part of the Munster Basin, south-west Cork is presented. Five formations are recognized on the basis of lithofacies geometries and associations. ...
Owing to the maturity of exploration in the North Sea Basin, reservoir geology will increasingly focus on the exploitation of smaller and technically more demanding hydrocarbon accumulations and the need to maximize reserves from the ...
Two detailed sections through 4 km of distal alluvium of the Upper Devonian Old Red Sandstone in the Munster Basin, southern Ireland, display a limited number of lithofacies. There is little ordering of these lithofacies on ...
The behaviour and the development of the Brent Group in the Northern North Sea is documented by cross-sections and paleogeographic maps. Although this work is based on a previously published Norsk Hydro study, we present ...
