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Showing 1 to 20 of 159 for “"enhanced oil recovery"”.
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Surfactants and enhanced oil recovery
… with a view to their potential usefulness for enhanced oil recovery (EOR) application. Ethoxylated phenols and their sulphonated derivatives were given especially high priority. The surfactants were well-characterised in order to understand their EOR potential. High pressure liquid …
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Enhanced oil recovery simulation study for Citronelle field, Alabama
… rising fossil fuel need, it is important that enhanced oil recovery (EOR) schemes, which are more efficient hydrocarbon recovery techniques than primary and secondary recovery methods, are used to recover conventional oil reserves from already discovered fields. Continuous CO2 and the Water …
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Synthesis and comprehensive studies of nanogels for enhanced oil recovery
… have been developed and applied for enhanced oil recovery (EOR) in oil industry. Among the developed nanomaterials, nano-sized crosslinked polymeric gel particles (nanogels) have shown the potential in improving both the macro- and micro-displacing efficiency. This dissertation …
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The analysis of salt resistant surfactants used in enhanced oil recovery.
… and NPEOS surfactant formulations, are used for enhanced oil recovery (EOR). The surfactants have been analysed by liquid chromatography (LC), liquid chromatography-mass spectrometry (LC-MS) and matrix assisted laser desorption ionization mass spectrometry. Mixedmode C1 8/SAX and C8/SAX columns …
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Degradable nanocomposite preformed particle gel for chemical enhanced oil recovery applications
… used in conformance control to increase ultimate oil recovery from mature oilfields.</p><p>The first product is a degradable nanocomposite preformed particle gel for enhanced in-depth mobility control. Three different types of degradable nanocomposite preformed particle gels were synthesized. …
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Optimization of chemical enhanced oil recovery methods for naturally fractured carbonate reservoirs
Carbonate oil reservoirs are important energy sources, accounting for over 60% of the world’s oil reserves. Recovering oil from these reservoirs is challenging, especially if they are naturally fractured. Waterflooding is inefficient because water flows through the highly permeable fractures and …
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Application of Foam for Mobility Control in Enhanced Oil Recovery (EOR) Process
… the application of foam for mobility control in enhanced oil recovery (EOR) process. The performance of foam and surfactants was evaluated by systematic laboratory study. This includes the screening and evaluation of surfactant formulations for foam EOR process and the investigation of foam for …
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Performance Evaluation of ionic Liquids in Enhanced Oil Recovery Using Numerical Simulation
Given the rise in oil productivity from conventional and unconventional resources in Canada and North America, using enhanced oil recovery technique, the need to understand and characterize these techniques, for the purpose of recovery optimization, has taken a prominent role in resource …
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Multiphase mechanisms and fluid dynamics in gas injection enhanced oil recovery processes
… sound, it has resulted in low (5 – 10%) oil field recoveries. Conversely, the gravity stable mode of gas injection has carved its niche as one of the most effective methods of gas injection EOR in the dipping reservoirs and pinnacle reefs. The Gas Assisted Gravity Drainage (GAGD) process …
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Fundamentals of Microgel Flooding and Nanoparticles-Stabilized Foams in Enhanced Oil Recovery
<p>For centuries oil has remained a critical energy source for human civilization. After years of extraction, many oil fields have reached or are reaching a decline stage of production, even though up to a half of the total crude oil reserves in these fields has not been recovered yet. One reason …
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NMR Studies of Enhanced Oil Recovery Core Floods and Core Analysis Protocols
With conventional oil reserves in decline, energy companies are increasingly turning to enhanced oil recovery (EOR) processes to extend the productive life of oilfield wells. Laboratory-scale core floods, in which one fluid displaces another from the pore space of a rock core, are widely used in …
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Digital Rock: Understanding the mechanism of Enhanced Oil Recovery (EOR) Core Floods
Oil companies aim to increase their return on investment by extending the productive life of their existing oilfields. For that purpose, a better understanding of the physical phenomena which occur during waterflooding and enhanced oil recovery (EOR) is needed to optimise the oil recovery. In this …
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Evaluation of Low Saline “Smart Water” Enhanced Oil Recovery in Light Oil Reservoirs
… driving forces responsible for pushing the oil from reservoirs and declining oil recovery after the secondary recovery stage, emphasis is now on EOR techniques. Low saline water (LSW) flooding is a type of EOR that has gained immense attention among researchers due to its ease of use, lower …
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Novel insights into low salinity water flooding enhanced oil recovery in sandstone reservoirs
… global energy demand and the natural decline in oil production from mature oil fields have been the main incentives to search for methods to increase recovery efficiency for several decades. Water flooding is extensively applied worldwide to improve oil recovery. The recent drop in oil prices has …
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Geophysical properties of carbon monoxide when used as an enhanced oil recovery agent
… environment (ie: temperature and pressure). Enhanced oil recovery (EOR) efforts attempt to manipulate these conditions to reach profitable production and prolong the economic viability of these known resources. Different approaches have been established for EOR, including steam and CO2 …
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Factors impacting the transport and enhanced oil recovery potential of polymeric nanogel in sandstone
"Enhanced oil recovery (EOR) using nanometer-sized particles has drawn great attention in the oil industry because of their various advantages brought by size. However, their applications on a field scale are very limited, especially for deformable nanoparticles. The objective of this research is …
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Numerical investigation of polymer injection effects on geomechanical reservoir properties during enhanced oil recovery
Polymer injection is an enhanced oil recovery method based on the viscosity increase of the injected aqueous phase to control its mobility. The changes in mobility could affect the pore pressure distribution within the reservoir. The objective of this research work is investigating the effects of …
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Chemical kinetic modeling of oxy-fuel combustion of sour gas for enhanced oil recovery
… gas resources, especially when combined with enhanced oil recovery (EOR). Chemical kinetic modeling can help to assess the potential of this approach. In this thesis, a detailed chemical reaction mechanism for oxy-fuel combustion of sour gas has been developed and applied for studying the …
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Chemical treatment and gas huff-n-puff for enhanced oil recovery in oil shale reservoirs
Shale oil contributes more than 60% to the US oil production. Shale oil production has been feasible because of technological development for horizontal wells with multistage hydraulic fracturing. However, after primary production, more than 90% of the oil is left behind in shale oil reservoirs due …
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