Results 71 to 80 of about 390,666 (301)

Phase behavior of pseudoternary brine/alkane/alcohol-secondary alkanesulfonates systems.Surfactant ratio effects of salinity and alcohol [PDF]

, 2008
Dodecanesulfonates (isomer mixtures) have been synthesized by the process developed in our laboratory. First, pseudoternary phase diagrams of the water or (brine) decane/ dodecanesulfonates-butan-1-ol systems were drawn and compared with those of a ...
Azira, Hakima, Canselier, Jean-Paul, Tazerouti, Amel   +2 more
core   +2 more sources

Tailoring the Properties of Functional Materials With N‐Oxides

Advanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich, Michelle Kobus, Shirin Mesgarha, Erica Moretto, Laurens Grosche, Wolfgang Maison   +5 more
wiley   +1 more source

Microbial surfactant [PDF]

, 2007
Microbial surface active agents (biosurfactant) have recently been recognized as important microbial products with properties applicable in a number of industries and processes.
Al-Araji, Laith Issa Yassin, Basri, Mahiran, Raja Abdul Rahman, Raja Noor Zaliha, Salleh, Abu Bakar   +3 more
core  

Microbial enhanced oil recovery by Bacillus subtilis strains under simulated reservoir conditions [PDF]

, 2012
Microbial Enhanced Oil Recovery (MEOR) is a tertiary oil recovery process in which microorganisms and their metabolites are used to retrieve unrecoverable oil from mature reservoirs.
Coutinho, J. A. P., Gudiña, Eduardo J., Pereira, J. F., Ribeiro, M. T., Rodrigues, L. R., Soares, L. P., Teixeira, J. A.   +6 more
core   +1 more source

Charge‐Induced Morphing Gels for Bioinspired Actuation

Advanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu, Saba Firouznia, Charl F. J. Faul, Majid Taghavi, Jonathan Rossiter   +4 more
wiley   +1 more source

Field control technologies of combustion assisted gravity drainage (CAGD)

Petroleum Exploration and Development, 2017
: The targets, strategies and approaches of the field controlling processes of combustion assisted gravity drainage (CAGD) are discussed based on the research of its mechanisms, advantages and defects.
Wenlong GUAN, Changfeng XI, Long CHEN, Muhetar, Chengguo GAO, Junshi TANG, Qiu LI   +6 more
doaj   +1 more source

Separation of emulsified oil from a brackish water stream using ultrafiltration and coalescence [PDF]

, 2015
In the past 40 years, a variety of enhanced oil recovery (EOR) methods have been developed and applied to mature, mostly depleted, and shale formation oil reservoirs. Chemical and sonic stimulation are two enhanced oil recovery methods in which emulsions
Polk, Casey W
core   +1 more source

Chemoselective Sequential Polymerization: An Approach Toward Mixed Plastic Waste Recycling

Advanced Functional Materials, EarlyView.
Inspired by biological protein metabolism, this study demonstrates the closed‐loop recycling of mixed synthetic polymers via ring‐closing depolymerization followed by a chemoselective sequential polymerizations process. The approach recovers pure polymers from mixed feedstocks, even in multilayer formats, highlighting a promising strategy to overcome a
Gadi Slor, Youwei Ma, Hyunwoo Park, Tae‐Lim Choi, Damien Guironnet, Francesco Stellacci   +5 more
wiley   +1 more source

Diminishing the mobility ratio and interfacial tension of a tertiary flooded sandstone reservoir using microparticles as a reinforcement agent with biopolymer composite

Journal of Petroleum Exploration and Production Technology
Approaches for enhancing oil recovery are important for maximizing the recovery factor of oil after the vanishing natural pressure of a hydrocarbon reservoir.
Samah A. M. Abou-alfitooh, M. Ramzi, Mostafa G. Temraz, Rasha Hosny, Osama M. Elnaggar   +4 more
doaj   +1 more source

Investigation on degradation mechanism of polymer blockages in unconsolidated sandstone reservoirs

e-Polymers, 2020
Polymer flooding technology has shown satisfactorily acceptable performance in improving oil recovery from unconsolidated sandstone reservoirs. The adsorption of the polymer in the pore leads to the increase of injection pressure and the decrease of ...
Dong Wenting, Zhang Dong, Wang Keliang, Qiu Yue   +3 more
doaj   +1 more source