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Now showing items 61-70 of 132
Empirical Relation for Capillary Pressure in Shale
(
Society of Petroleum Engineers (SPE)
, 2022 , Article)
Brooks and Corey (1964) and van Genuchten (1980) proposed the two most widely used relations for approximating capillary pressure. Petroleum engineers apply both, but they were originally proposed to understand the moisture ...
Baseline concentrations of mercury species within sediments from Qatar's coastal marine zone
(
Elsevier
, 2019 , Article)
Baseline concentration of total mercury (THg), organic extractable mercury and methylmercury (CH3Hg) concentrations in sediments from the northeastern, eastern and southeastern parts of the Arabian Gulf were assessed. ...
Baseline concentrations and distributions of Polycyclic Aromatic Hydrocarbons in surface sediments from the Qatar marine environment
(
Elsevier
, 2017 , Article)
Coastal sediments in marine waters of Qatar have the potential of being contaminated by Polycyclic Aromatic
Hydrocarbons (PAHs) due to extensive petroleum exploration and transportation activities within Qatar's ...
Evaluation of processed sludge as a sustainable and efficient soil conditioner and organic fertiliser for Qatari soil
(
Inderscience Publishers
, 2022 , Article)
Qatar is implementing the use of treated sludge as a sustainable resource in the green infrastructure. The study employed an experimental research design where five samples (two kilograms each) of pelletised sludge of both ...
Comprehensive pore size characterization of Midra shale
(
Elsevier B.V.
, 2021 , Article)
Although the Middle East's carbonate reservoirs were the first and most studied rocks in the world, Middle Eastern shale reservoirs are still poorly understood compared with other unconventional formations in the US. We ...
Baseline distribution of petroleum hydrocarbon contamination in the marine environment around the coastline of Qatar
(
Elsevier Ltd
, 2023 , Article)
Levels of organic contaminants (TPHs, PAHs) were simultaneously determined in both abiotic (sediments, seawater) and biotic (Pinctada radiata oysters) samples at four sites along the coastline of Qatar (Arabian Gulf) in ...
Radioactivity levels in the marine environment along the Exclusive Economic Zone (EEZ) of Qatar
(
Elsevier
, 2015 , Article)
A study on 137Cs, 40K, 226Ra, 228Ra, and 238U was carried out along the EEZ of Qatar. Results serve as the
first ever baseline data. The level of 137Cs (mean value 1.6 ± 0.4 Bq m 3) in water filters was found to be in
the ...
Scale effects on the relationships between land characteristics and ecosystem services- a case study in Taihu Lake Basin, China
(
Elsevier
, 2020 , Article)
© 2020 Elsevier B.V. It is generally recognized that marginal changes in landscape characteristics can influence multiple ecosystem services, but the causal relationships involved are still very unclear due to lack of ...
Stratigraphy and petroleum systems of the Paleozoic (pre-Khuff) succession, Qatar
(
Wiley
, 2016 , Article)
A thickness of more than 1500m of Palaeozoic (pre-Khuff) siliciclastic strata were
encountered in three deep wells (Matbakh A, and Dukhan A and B) drilled in the State of
Qatar. These sedimentary rocks have no formal ...
Decapod assemblages in subtidal and intertidal zones—Importance of scuba diving as a survey technique in tropical reefs, Brazil
(
Elsevier
, 2015 , Article)
Decapods play a crucial role within the reef ecosystem and the development of scuba diving as a survey tool has allowed researchers the opportunity to study the decapod–reef relationship more comprehensively. The present ...