Results 51 to 60 of about 44,839 (285)

Petrophysical and rock physics analyses for characterization of complex sands in deepwater Niger delta, Nigeria [PDF]

open access: yes, 2019
Characterization of complex sand reservoirs in deepwater of Niger Delta was carried out through petrophysical and rock physics evaluation of well log data from three wells.
Adeyemi, Olatunde B.   +2 more
core   +1 more source

Discovery and genesis mechanism of high content diamondoids in the Gulong shale oil

open access: yesScientific Reports
Diamondoids are an important industrial material for biomedicine and equipment manufacturing. In addition to chemical synthesis methods used in industry, direct separation from petroleum is also a potential approach.
Xuefeng Bai   +6 more
doaj   +1 more source

Modern and ancient tidal sedimentary systems in the era of energy transition: Introduction to the special volume of The Depositional Record

open access: yesThe Depositional Record, EarlyView.
This volume examines tidal sedimentary systems through 11 articles, spanning ancient and modern tidalites, technological advances and implications for human management. Highlighting contributions from Tidalites 2022 and beyond, it underscores tidalites' significance in sedimentology, environmental forecasting and energy transition, reflecting decades ...
Sergio G. Longhitano   +2 more
wiley   +1 more source

South Atlantic continental margins of Africa: a comparison of the tectonic vs climate interplay on the evolution of equatorial west Africa and SW Africa margins

open access: yes, 2005
The comparative review of 2 representative segments of Africa continental margin: the equatorial western Africa and the SW Africa margins, helps in analysing the main controlling factors on their development.
Anka, Zahie, Seranne, Michel
core   +2 more sources

Background levels of heavy metals in surficial sediments of the Gulf of Lions (NW Mediterranean): An approach based on 133Cs normalization and lead isotope measurements [PDF]

open access: yes, 2005
This paper presents an attempt to reach natural background levels of heavy metals in surficial sediments of the Gulf of Lions(NW Mediterranean). To correct for the grain-size effect, normalization procedures based on a clay mineral indicator element are ...
Ludwig, Wolfgang   +3 more
core   +2 more sources

Pore Structure Characteristics and Genesis of Low-Permeability Sandstone Reservoirs in the Eocene Wenchang Formation, Huizhou Sag, Pearl River Mouth Basin, Northern South China Sea

open access: yesJournal of Marine Science and Engineering
Porosity and permeability are critical parameters in petroleum exploration and development. The relationship between pore structure and permeability in near-source reservoirs is more closely correlated than in other types of reservoirs.
Guanliang Zhang   +7 more
doaj   +1 more source

A case study of petrophysical rock typing and permeability prediction using machine learning in a heterogenous carbonate reservoir in Iran

open access: yesScientific Reports, 2022
Petrophysical rock typing (PRT) and permeability prediction are of great significance for various disciplines of oil and gas industry. This study offers a novel, explainable data-driven approach to enhance the accuracy of petrophysical rock typing via a ...
Erfan Mohammadian   +4 more
doaj   +1 more source

Quantitative investigation on the characteristics of ions transport into water in gas shale: Marine and continental shale as comparative study [PDF]

open access: yesJournal of Natural Gas Science and Engineering, 2017
Abstract Investigating ions transport from matrix pores to water is essential for understanding the salinity profiles of shale gas. Previous publications have shown that salt ions can be sourced from the dissolution of precipitated salts and leaching of clay minerals.
Jian Gao   +9 more
openaire   +3 more sources

Thermodynamic analysis of the difference in adsorption characteristics of CH4 and CO2 on continental shale

open access: yesFrontiers in Earth Science, 2023
In order to explain the difference in adsorption characteristics of CH4 and CO2 on continental shale from the perspective of thermodynamics, the isothermal adsorption experiments of CH4 and CO2 adsorbed by shale in Yanchang Formation in Ordos Basin were carried out, and the excess adsorption capacity was corrected to absolute adsorption capacity.
Pei Xue   +5 more
openaire   +2 more sources

Water pathways and ancient lakes: Flowing towards new models to unravel the past

open access: yesThe Depositional Record, EarlyView.
Abstract Significant progress has been made in understanding lake basin evolution through climatic and tectonic changes using sedimentology, sequence stratigraphy, geochemistry, hydrology and watershed characteristics to interpret three main lake basin types: overfilled, balanced‐fill and underfilled, including fluvio‐lacustrine systems.
Cecilia A. Benavente   +2 more
wiley   +1 more source

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