Results 41 to 50 of about 703,349 (355)

Imidazoline-Based Fatty Acid Derivatives as Novel Shale Inhibitors for Water-Based Drilling Fluids

Applied Sciences
Water-based drilling fluids (WBMs) are widely applied in petroleum engineering due to their lower cost and reduced environmental impact compared to oil-based muds.
Ioana Gabriela Stan, Mihail Tudose, Alina Petronela Prundurel, Gheorghe Branoiu, Liviu Dumitrache, Silvian Suditu, Doru Bogdan Stoica, Emil Zaharia, Rami Doukeh   +8 more
doaj   +1 more source

Extractive purification of hydro-treated gas oil with N-methylpyrrolidone [PDF]

Journal of the Serbian Chemical Society, 2017
The purification of a hydrotreated gas oil by liquid-liquid extraction with N-methylpyrrolidone as solvent has been studied. The results showed that this method, under appropriate experimental conditions, has reduced sulphur content of the gas ...
Bedda Kahina, Hamada Boudjema, Kuzichkin Nikolay V., Semikin Kirill V.   +3 more
doaj   +1 more source

3D Geomechanical Model Construction for Wellbore Stability Analysis in Algerian Southeastern Petroleum Field

Energies, 2022
The main objective of this research work was the wellbore stability evaluation of oil and gas wells based on a 3D geomechanical model, which as constructed using seismic inversion in a southeastern Algerian petroleum field.
Said Eladj, Mohamed Zinelabidine Doghmane, Tanina Kenza Lounissi, Mabrouk Djeddi, Kong Fah Tee, Sofiane Djezzar   +5 more
doaj   +1 more source

Bioassays with terrestrial and aquatic species as monitoring tools of hydrocarbon degradation [PDF]

, 2016
In this study chemical analyses and ecotoxicity tests were applied for the assessment of a heavily hydrocarbon-contaminated soil prior and after the application of a remediation procedure that consisted in the stimulation of soil autochthonous ...
Bori Dols, Jaume, Ortega, Lina, Riva Juan, Mª del Carmen, Valles Malet, Bettina   +3 more
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

A comprehensive analysis of innovations to overcome challenges in horizontal well hydraulic fracturing in tight reservoirs: a case study on the lower Devonian in Berkine Basin, Algeria

Journal of Petroleum Exploration and Production Technology
Horizontal wells combined with multi-stage hydraulic fracturing represent the most effective approach for extracting resources from tight reservoirs. Hydraulic fracturing involves injecting formulated fluids at high pressure to fracture the formation ...
Dhiya Eddine Nouri, Khaled Benyounes, Faycal Smail, Houssem Eddine Belhouchet   +3 more
doaj   +1 more source

Hydrocarbon influence on denitrification in bioturbated Mediterranean coastal sediments [PDF]

, 1997
An in situ experiment has been carried out inbioturbated Mediterranean coastal marine sediments (Gulfof Fos) in order to study the influence of hydrocarbons ondenitrification after 1, 4 and 6 months. In theabsence of hydrocarbons in the control sediments,
Bertrand, Jean-Claude, Bonin, Patricia, Gilbert, Franck, Le Dréau, Yveline, Mille, Gilbert, Stora, Georges   +5 more
core   +4 more sources

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

Molecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel, Peyman Zarrineh, Nathnael T. Tuffa, Jigar H. Sheth, Sumitra Mohan, Mudassar Iqbal, Sankari Nagarajan   +6 more
wiley   +1 more source

Software for CO₂ Storage in Natural Gas Reservoirs

Energies
The paper presents a simulation-based approach for optimizing CO2 injection into depleted gas reservoirs, with the goal of enhancing underground CO2 storage.
Cristian Nicolae Eparu, Silvian Suditu, Rami Doukeh, Doru Bogdan Stoica, Iuliana Veronica Ghețiu, Alina Prundurel, Ioana Gabriela Stan, Liviu Dumitrache   +7 more
doaj   +1 more source

An improved holographic recording medium [PDF]

, 1973
Solid, linear chain hydrocarbons with molecular weight ranging from about 300 to 2000 can serve as long-lived recording medium in optical memory system.
Gange, R. A.
core   +1 more source