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    1995-9-1 · @article{osti_105030, title = {Chemical systems for improved oil recovery: Phase behavior, oil recovery, and mobility control studies}, author = {Llave, F and Gall, B and Gao, H., Scott, L., Cook, I.}, abstractNote = {Selected surfactant systems containing a series of ethoxylated nonionic surfactants in combination with an anionic surfactant system have been studied to evaluate phase behavior ...

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    2020-10-1 · A large portion of the oil found in many reservoirs is strongly adsorbed on rocks, and with the increasing demand on energy, more efficient methods are required to extract it. Recent technological developments in enhanced oil recovery (EOR) allow access to important additional reserves , , . The most common technique used in EOR is the addition ...

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    2020-11-1 · The process of oil recovery is divided into three main phases including primary, secondary and tertiary phases. In the petroleum industry, the primary and secondary phases are referred to as the conventional methods of oil extraction. On the other hand, the tertiary phase is referred to as enhanced oil recovery (EOR) (Pogaku et al., 2018).

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    Enhanced oil recovery. Enhanced oil recovery (abbreviated EOR), also called tertiary recovery, is the extraction of crude oil from an oil field that cannot be extracted otherwise. EOR can extract 30% to 60% or more of a reservoir's oil, compared to 20% to 40% using primary and secondary recovery.

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    The increasing demand for fossil fuels and the depleting of light crude oil in the next years generates the need to exploit heavy and unconventional crude oils. To face this challenge, the oil and gas industry has chosen the implementation of new technologies capable of improving the efficiency in the enhanced recovery oil (EOR) processes. In this context, the incorporation of nanotechnology ...

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    The present disclosure includes a nonionic surfactant and a method of providing the nonionic surfactant, where the nonionic surfactant is soluble in carbon dioxide and is used as part of a dispersion for enhanced crude oil recovery. The nonionic surfactant can be part of an emulsion that includes carbon dioxide and a diluent.

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    2010-10-21 · A method for enhancing oil recovery is disclosed. The method includes providing a subsurface reservoir containing hydrocarbons therewithin and a wellbore in fluid communication with the subsurface reservoir. A solution for injection into the reservoir is formed by mixing a composition with at least one non-ionic chemical, at least one polymer, and at least one alkali.

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    2020-7-20 · On account of the intralayer and interlayer heterogeneity, high temperature (110 °C), and high salinity (224,919 mg/L) of Tahe channel sand reservoir, single profile control or chemical flooding cannot greatly enhanced oil recovery. The goal of the current research was to optimize a polymer gel formula that was suitable for high-temperature and high-salinity reservoirs, screen an appropriate ...

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    Application of deep eutectic solvents and their individual constituentsas surfactants for enhanced oil recovery. Khalid AlKhidir. PDF. Download Free PDF. Free PDF. Download with Google Download with Facebook. or. Create a free account to download. PDF. PDF.

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    2021-5-28 · best polyacrylamide pam phpa as oil field chemicals . PAM Archives - Polyacrylamide for drag reduction and fluid. Application of Polyacrylamide (PAM) used in oil field oilfieldchem 2018-05-30T09:09:45+00:00 Polyacrylamide (PAM) is a general name for acrylamide homopolymer or a polymer obtained by copolymerization with other monomers. Get Price

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    2021-4-27 · Polyacrylamide (PAM) and partially hydrolyzed polyacrylamide (HPAM) are two of the most functional polymers for enhanced oil recovery processes that help to mobilize the oil phase by increasing water viscosity, wettability alteration, and interfacial tension reduction [57,58,59]. The following features would be essential in providing efficient ...

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    2018-12-10 · used, oil recovery improved by gel treatment is the lowest. When permeability is lower, oil recovery improvement could be higher than 5%. It shows that lower permeability is favorable for improving oil recovery. Permeability, mD Oil recover factors, % Oil recovery increment, % W.F. Gel 2nd W.F. 262.1 45.27 1.73 0.00 1.73

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    2021-6-15 · hydrophilic anionic polyacrylamide for coal washing and mining | Buy. anionic polyacrylamide pam for mining or wastewater. Product Description: VEKEN Anionic Polyacrylamide (APAM) is a high polymerization, high molecular and water soluble polymer; it can be used in the petroleum, mineral separation, coal washing, metallurgy, chemical industry, paper-making, textile, sugar making, …

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    The oil may be any refined or crude oil, e.g., a sweet or sour crude, synthetic crude, refined fraction such as kerosene, diesel oil, lube oil, aromatic naphtha or white oil boiling at from 80° to 345° C., C 6 to C 22 aliphatic hydrocarbon aromatic hydrocarbon boiling at from 80° to 300° C. or mixtures thereof. The amount of oil employed ...

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    The increasing demand for fossil fuels and the depleting of light crude oil in the next years generates the need to exploit heavy and unconventional crude oils. To face this challenge, the oil and gas industry has chosen the implementation of new technologies capable of improving the efficiency in the enhanced recovery oil (EOR) processes. In this context, the incorporation of nanotechnology ...

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    2019-12-24 · A review. Enhanced oil recovery (EOR) techniques can significantly extend global oil reserves once oil prices are high enough to make these techniques economic. Given a broad consensus that we have entered a period of supply constraints, operators can at last plan on the assumption that the oil price is likely to remain relatively high.

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    The oil may be any refined or crude oil, e.g., a sweet or sour crude, synthetic crude, refined fraction such as kerosene, diesel oil, lube oil, aromatic naphtha or white oil boiling at from 80° to 345° C., C 6 to C 22 aliphatic hydrocarbon aromatic hydrocarbon boiling at from 80° to 300° C. or mixtures thereof. The amount of oil employed ...

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    Enhanced oil recovery technique employing nonionic surfactants . United States Patent 5363915 . Abstract: A method for enhancing the recovery of petroleum from an oil bearing formation during injection of a non-condensible gas comprises the at least periodic injection of a foam forming composition or a preformed foam into the reservoir ...

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    The increasing demand for fossil fuels and the depleting of light crude oil in the next years generates the need to exploit heavy and unconventional crude oils. To face this challenge, the oil and gas industry has chosen the implementation of new technologies capable of improving the efficiency in the enhanced recovery oil (EOR) processes. In this context, the incorporation of nanotechnology ...

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    Method of enhanced oil recovery employing thickened amphoteric surfactant solutions: 1985-11-26: Kalpakci et al. 252/8.554: 4515701: Low cost, brine tolerant sulfonate and sulfate surfactants having 1,3-dihydrocarboxy-2-propyl hydrophobic tails: 1985-05-07: Hoskin: 252/8.554: 4502540: Tertiary oil recovery: 1985-03-05: Byham: 166/274: 4479894

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    2016-1-2 · Among them, biopolymers such as polyacrylamide (PAM) and Xanthan gum have shown great promise for enhanced oil recovery (EOR) because they lead to an increase in the viscosity of water, decrease in the mobility of water, and contact with a larger volume of the reservoir [9,10,11].

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  • Experimental Study on Enhanced Oil Recovery

    2020-7-20 · On account of the intralayer and interlayer heterogeneity, high temperature (110 °C), and high salinity (224,919 mg/L) of Tahe channel sand reservoir, single profile control or chemical flooding cannot greatly enhanced oil recovery. The goal of the current research was to optimize a polymer gel formula that was suitable for high-temperature and high-salinity reservoirs, screen an appropriate ...

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  • Methods for Enhancing Recovery of Heavy Crude Oil |

    2014-11-26 · Chemical enhanced oil recovery (EOR) that uses a chemical slug blended with suitable chemicals (alkali, surfactant and polymer) has been widely exercised and observed to be a potential tool to recover oil from deep hard-to-produce reservoirs where the viscosity of crude oil is significantly higher than that of conventional oil (Pei et al., 2012).

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    2017-1-1 · Several chemicals and thermal and gas injection methods are employed to recover the remaining oil. These are termed as tertiary oil recovery or enhanced oil recovery (EOR) [4-9]. ... S. Zendehboudi, A. Shafiei, and L. James, 'Nonionic surfactant for enhanced oil recovery from carbonates: Adsorption kinetics and equilibrium,' Industrial and ...

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  • Recent Advances in Nanoparticles Enhanced Oil

    2015-3-9 · Alternative energy sources have not yet presented suitable to meet the energy demand of the world; therefore crude oil will play furthermore an essential role in the energy consumption in the future. EOR is a challenging field for several scientific disciplines. The number of patents highlights the importance of this area. Most of the publications label that the target of the chemical ...

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    2018-10-2 · The used polymer in this study is nonionic polyacrylamide (PAM) that was obtained from Sigma-Aldrich. It is in powder form with a pH of 6 and was used as provided. The molecular weight of PAM is with average 5,000,000–6,000,000 mol. wt. Polyethylenimine (PEI) was used as crosslinker provided by BASF with a pH of approximately 11.7.

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  • An Optimization Study of Polyacrylamide

    2021-3-12 · Enhanced-oil-recovery (EOR) processes are used to recover bypassed and residual oil trapped in the reservoir after primary and secondary recovery methods. Recently, novel materials formed from incorporation of polymer and nanoparticles have gained attention and are proposed for EOR applications due to their fascinating properties.

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  • biodegradation of polyacrylamide and its derivatives

    A considerable fraction of fossil oil remains in the reservoirs after drilling and primary production. Partially hydrolysed polyacrylamide and its derivatives have been used for enhanced oil recovery of the residual oil. Polyacrylamide is added to water to increase its viscosity and thereby its sweep efficiency. Get Price

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    2021-6-9 · 1. Introduction. Enhanced oil recovery (EOR), also known as tertiary recovery, will play an important role in the oil industry for decades to come. 1,2 This is due to the low oil recovery rates of the primary and secondary approaches, through which only 30–40% of the original oil in place (OOIP) can be recovered. 3,4 Over 50% of total hydrocarbon reservoirs in the world are of the carbonate ...

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    High Concentration Polyacrylamide-Based Friction Reducer. Traditionally, friction reducer systems have been used to promote laminar flow in pipe to reduce friction pressure in pumping of low viscosity, slickwater-type fracture treatments. In these types of treatments, velocity is the key factor in proppant transport into the reservoir. Typical ...

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    2020-2-21 · Modification of oil–brine–minerals interfacial properties with biosurfactant-producing microorganisms and their extracellular metabolites has been considered as one of the viable strategies for microbial enhanced oil recovery (MEOR). In this study, the effect of lipopeptide biosurfactant produced by Bacillus subtilis on the interfacial tension (IFT) and wettability in oil–brine–mineral ...

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    2020-8-13 · In most oil fields, the typical requirement for the total separation process is to produce dry oil and clean water. Dry oil should contain no more than 0.3% water by volume, and clean water should have an oil content of less than 100 ppm, preferably 50 ppm (Hirasaki et al. 2010). The separation process on ANS consists of a slug catcher (130°F ...

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  • Experimental Investigation on Separation Behavior of

    1995-6-7 · Granules of quaternized Mannich polyacrylamide were obtained by the spray drying process of Example 14 and then sodium carbonate was added according to Example 15. Solutions of the granules were prepared by dissolving 0.2 parts of the granules in 100 parts water. The dry granules took approximately 1 hour to dissolve.

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  • Spray drying of functionalized polyacrylamide ...

    2019-10-2 · The heavy oil used was collected from the Shengli oil field, Dongying, China. The density and viscosity of the oil were measured and found to be 969.2 kg/m 3 (70°C, 0.101 MPa) and 657.0 mPa s (70°C, 0.101 MPa), respectively. The GEO surfactant used is an anionic and nonionic compound variant.

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