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Dissertations / Theses on the topic 'Chemical flooding'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Atthawutthisin, Natthaporn. "Numerical Simulation of Low Salinity Water Flooding Assisted with Chemical Flooding for Enhanced Oil Recovery." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19113.

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World proved oil reserve gradually decreases due to the increase production but decrease new field discovery. The focus on enhance oil recovery from the existing fields has become more interesting in the recent years. Since waterflooding has been used in practices in secondary recovery phase for long time ago, the low salinity waterflooding is possible to apply as tertiary recovery phase. Another effective enhance oil recovery method is chemical flooding especially, nowadays, when the price of chemical is not a big issue compared to oil price. Both low salinity and chemical flooding method hav

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2

Aldejain, Abdulaziz A. "Implementation of a dual porosity model in a chemical flooding simulator /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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3

Bakhsh, S. "A model study of clay mobilisation and permeability reduction during oil reservoir flooding." Thesis, Loughborough University, 1991. https://dspace.lboro.ac.uk/2134/7119.

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Formation damage effects have been reported in a number of oil reservoirs in secondary and enhanced recovery stages of production. The loss in permeability has been widely attributed to the swelling or pore-plugging action of colloidal clay minerals which are present in varying quantities in the pore spaces of reservoir rocks. This research has been aimed at predicting the action of non-swelling clay particles such as those commonly found in North Sea reservoir sandstones. The literature from the areas of formation damage, colloidal suspensions, and deep bed filtration has been examined with p

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4

Unger, Irene M. "A multi-dimensional investigation into the effects of flooding on the physical, chemical and biotic properties of riparian soils." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/5582.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2008.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed June 17, 2009). Vita. Includes bibliographical references.

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5

Födisch, Hendrik [Verfasser], and L. [Akademischer Betreuer] Ganzer. "Investigation of chemical enhanced oil recovery core flooding processes with special focus on rock-fluid interactions / Hendrik Födisch ; Betreuer: L. Ganzer." Clausthal-Zellerfeld : Technische Universität Clausthal, 2019. http://d-nb.info/1231363118/34.

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6

Dieterichs, Christin. "Laboratory Investigations on the Applicability of Triphenoxymethanes as a New Class of Viscoelastic Solutions in Chemical Enhanced Oil Recovery." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2018. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-234749.

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Even in times of renewable energy revolution fossil fuels will play a major role in energy supply, transportation, and chemical industry. Therefore, increasing demand for crude oil will still have to be met in the next decades by developing new oil re-serves. To cope with this challenge, companies and researchers are constantly seeking for new methods to increase the recovery factor of oil fields. For that reason, many enhanced oil recovery (EOR) methods have been developed and applied in the field. EOR methods alter the physico-chemical conditions inside the reservoir. One possibility to achi

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7

Pieck, Carlos Ariel. "Development of tools for the implementation of an industrial-scale supercritical fractionation process." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4317/document.

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Le fractionnement supercritique est un procédé prometteur avec un potentiel d’application encore peu exploité à grande échelle. Les travaux expérimentaux et la discussion théorique qui font l’objet de cette thèse ont pour objectif d’apporter des outils fiables permettant d’effectuer la mise en œuvre d’un procédé de fractionnement supercritique à l’échelle industrielle, en abordant le changement d’échelle et la modélisation du procédé. La première partie du travail porte sur le fractionnement de mélanges éthanol-eau en utilisant du dioxyde de carbone supercritique à 333 K et 10 MPa, sur des uni

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8

Costa, Michelle Nazare Xavier da. "Desempenho de duas gramíneas forrageiras tropicais tolerantes ao estresse hídrico por alagamento em dois solos glei húmicos." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-24082004-144438/.

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A falta de informações relacionadas às respostas das plantas ao alagamento tem sido alvo de inúmeras pesquisas no mundo todo. Essas informações tornam-se mais escassas quando relacionadas à gramíneas forrageiras de áreas inundáveis. A maioria dessas espécies pertence a ecossistemas de pastagens nativas de áreas inundáveis, os quais podem ter papel importante no desenvolvimento da pecuária brasileira, devido ao potencial de produção de forragem para alimentação de rebanhos. Diante do exposto, os objetivos do trabalho foram avaliar o desempenho da Brachiaria mutica (Forsk) Stapf e Echinoc

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9

Elias, Samya Daniela de Sousa. "Synthesis of a high performance surfactant for application in alkaline-surfactant-polymer flooding in extreme reservoirs." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2491.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2016.<br>Due to the rising cost involve with bringing new fields on stream, of producing residual crude from matured fields, and the significant enhancement in oil recovery provided when compared to conventional water-flooding, increasing attention is being given to chemical flooding technologies. This is particular of interest in mature fields that had previously undergone water flooding. These methods entail injecting chemicals such as surfactant, alkali, and polymer often in mixture into reservoirs to improve oi

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10

Koyassan, Veedu Faiz. "Scale-up methodology for chemical flooding." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-12-2578.

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Accurate simulation of chemical flooding requires a detailed understanding of numerous complex mechanisms and model parameters where grid size has a substantial impact upon results. In this research we show the effect of grid size on parameters such as phase behavior, interfacial tension, surfactant dilution and salinity gradient for chemical flooding of a very heterogeneous oil reservoir. The effective propagation of the surfactant slug in the reservoir is of paramount importance and the salinity gradient is a key factor in ensuring the process effectiveness. The larger the grid block size

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11

Ghorbani, Davood 1967. "Development of methodology for optimization and design of chemical flooding." 2008. http://hdl.handle.net/2152/18342.

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Chemical flooding is one of the most difficult enhanced oil recovery methods and was considered a high-risk process in the past. Some reasons are low and uncertain oil price, high chemical prices, lack of confidence in performance of the chemical flooding process, long project life, and reservoir and process uncertainties. However, with significant improvement in simulation and optimization tools and high oil price, chemical flooding is feasible in terms of economical and carefully implemented design. Optimization of chemical floods requires complex integration of reservoir, chemical, economic

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12

Müller, Matthias. "Molekular-Dynamik-Simulationen zum Katalysemechanismus der Acetylcholinesterase." 2002. http://hdl.handle.net/11858/00-1735-0000-0006-B605-8.

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13

Bataweel, Mohammed Abdullah. "Enhanced Oil Recovery in High Salinity High Temperature Reservoir by Chemical Flooding." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10300.

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Studying chemical enhanced oil recovery (EOR) in a high-temperature/high-salinity (HT/HS) reservoir will help expand the application of chemical EOR to more challenging environments. Until recently, chemical EOR was not recommended at reservoirs that contain high concentrations of divalent cations without the need to recondition the reservoir by flooding it with less saline/ less hardness brines. This strategy was found ineffective in preparing the reservoir for chemical flooding. Surfactants used for chemical flooding operating in high temperatures tend to precipitate when exposed to high con

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14

Rodrigues, Neil. "Accounting for reservoir uncertainties in the design and optimization of chemical flooding processes." 2012. http://hdl.handle.net/2152/20031.

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Chemical Enhanced Oil Recovery methods have been growing in popularity as a result of the depletion of conventional oil reservoirs and high oil prices. These processes are significantly more complex when compared to waterflooding and require detailed engineering design before field-scale implementation. Coreflood experiments that have been performed on reservoir rock are invaluable for obtaining parameters that can be used for field-scale flooding simulations. However, the design used in these floods may not always scale to the field due to heterogeneities, chemical retention, mixing and dispe

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15

Chandrasekar, Vikram 1984. "An experimental and simulation study of the effect of geochemical reactions on chemical flooding." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-12-2628.

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The overall objective of this research was to gain an insight into the challenges encountered during chemical flooding under high hardness conditions. Different aspects of this problem were studied using a combination of laboratory experiments and simulation studies. Chemical Flooding is an important Enhanced Oil Recovery process. One of the major components of the operational expenses of any chemical flooding project, especially Alkali Surfactant Polymer (ASP) flooding is the cost of softening the injection brine to prevent the precipitation of the carbonates of the calcium and magnesium ions

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16

Patel, Alok Maheshbhai. "Two-Phase Hydraulics State Identification using linear and non-linear time series analysis: Distillation Column Flooding Sensor." 2007. http://etd.utk.edu/2007/PatelAlok.pdf.

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17

Dean, Robert Matthew. "Selection and evaluation of surfactants for field pilots." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-3633.

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Chemical flooding has been studied for 50 years. However, never have the conditions encouraging its growth been as good as right now. Those conditions being new, improved technology and oil prices high enough to make implementation economical. The objective of this work was to develop economical, robust chemical formulations and processes that recover oil in field pilots when properly implemented. This experimental study goes through the process of testing surfactants to achieve optimal phase behavior, coreflooding with the best chemical formulations, improving the formulation and testing it i

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18

Varavei, Abdoljalil. "Development of an equation-of-state thermal flooding simulator." 2009. http://hdl.handle.net/2152/6614.

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In the past thirty years, the development of compositional reservoir simulators using various equations of state (EOS) has been addressed in the literature. However, the development of compositional thermal simulators in conjunction with EOS formulation has been ignored, in particular. Therefore in this work, a fully implicit, parallel, compositional EOS-based simulator has been developed. In this model, an equation of state is used for equilibrium calculations among all phases (oil, gas, and aqueous). Also, the physical properties are calculated based on an equation of state, hence obviating

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19

Li, Xinxin. "Organic Carbon Cycling in East China Sea Shelf Sediments: Linkages with Hypoxia." Thesis, 2013. http://hdl.handle.net/1969.1/149240.

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The Changjiang River provides the main source of sediment and terrestrial derived organic carbon (OC) to the Changjiang large delta-front estuary (LDE) in the East China Sea (ECS). This study analyzed bulk OC, biomarkers including lignin and plant pigment, black carbon (BC) on ECS sediments sampled in winter 2009 and 2010 in order to study the OC cycling under the influence of natural and anthropogenic disturbance. Low-oxygen tolerant foraminiferal microfossils were analyzed in another two sediment cores to study the historical hypoxia events in the Changjiang LDE. Bulk carbon to nitrogen (C

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20

Fathi, Najafabadi Nariman. "Modeling chemical EOR processes using IMPEC and fully IMPLICIT reservoir simulators." 2009. http://hdl.handle.net/2152/6681.

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As easy target reservoirs are depleted around the world, the need for intelligent enhanced oil recovery (EOR) methods increases. The first part of this work is focused on modeling aspects of novel chemical EOR methods for naturally fractured reservoirs (NFR) involving wettability modification towards more water wet conditions. The wettability of preferentially oil wet carbonates can be modified to more water wet conditions using alkali and/or surfactant solutions. This helps the oil production by increasing the rate of spontaneous imbibition of water from fractures into the matrix. This novel

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21

Szlendak, Stefan Michael. "Laboratory investigation of low-tension-gas (LTG) flooding for tertiary oil recovery in tight formations." Thesis, 2012. http://hdl.handle.net/2152/23872.

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This paper establishes Low-Tension-Gas (LTG) as a method for sub-miscible tertiary recovery in tight sandstone and carbonate reservoirs. The LTG process involves the use of a low foam quality surfactant-gas solution to mobilize and then displace residual crude after waterflood. It replicates the existing Alkali-Surfactant-Polymer (ASP) process in its creation of an ultra-low oil-water interfacial tension (IFT) environment for oil mobilization, but instead supplements the use of foam over polymer for mobility control. By replacing polymer with foam, chemical Enhanced Oil Recovery (EOR) methods

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22

Walker, Dustin Luke. "Experimental investigation of the effect of increasing the temperature on ASP flooding." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-12-4919.

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Chemical EOR processes such as polymer flooding and surfactant polymer flooding must be designed and implemented in an economically attractive manner to be perceived as viable oil recovery options. The primary expenses associated with these processes are chemical costs which are predominantly controlled by the crude oil properties of a reservoir. Crude oil viscosity dictates polymer concentration requirements for mobility control and can also negatively affect the rheological properties of a microemulsion when surfactant polymer flooding. High microemulsion viscosity can be reduced with the

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23

Lashgari, Hamid Reza. "Development of a four-phase thermal-chemical reservoir simulator for heavy oil." Thesis, 2014. http://hdl.handle.net/2152/28477.

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Thermal and chemical recovery processes are important EOR methods used often by the oil and gas industry to improve recovery of heavy oil and high viscous oil reservoirs. Knowledge of underlying mechanisms and their modeling in numerical simulation are crucial for a comprehensive study as well as for an evaluation of field treatment. EOS-compositional, thermal, and blackoil reservoir simulators can handle gas (or steam)/oil/water equilibrium for a compressible multiphase flow. Also, a few three-phase chemical flooding reservoir simulators that have been recently developed can model the oil/wat

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24

Lotfollahi, Sohi Mohammad. "Development of a four-phase flow simulator to model hybrid gas/chemical EOR processes." Thesis, 2015. http://hdl.handle.net/2152/30530.

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Hybrid gas/chemical Enhanced Oil Recovery (EOR) methods are such novel techniques to increase oil production and oil recovery efficiency. Gas flooding using carbon dioxide, nitrogen, flue gas, and enriched natural gas produce more oil from the reservoirs by channeling gas into previously by-passed areas. Surfactant flooding can recover trapped oil by reducing the interfacial tension between oil and water phases. Hybrid gas/chemical EOR methods benefit from using both chemical and gas flooding. In hybrid gas/chemical EOR processes, surfactant solution is injected with gas during low-tension-gas

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25

Tarahhom, Farhad. "Development of an implicit full-tensor dual porosity compositional reservoir simulator." 2008. http://hdl.handle.net/2152/6813.

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A large percentage of oil and gas reservoirs in the most productive regions such as the Middle East, South America, and Southeast Asia are naturally fractured reservoirs (NFR). The major difference between conventional reservoirs and naturally fractured reservoirs is the discontinuity in media in fractured reservoir due to tectonic activities. These discontinuities cause remarkable difficulties in describing the petrophysical structures and the flow of fluids in the fractured reservoirs. Predicting fluid flow behavior in naturally fractured reservoirs is a challenging area in petroleum enginee

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26

Dieterichs, Christin. "Laboratory Investigations on the Applicability of Triphenoxymethanes as a New Class of Viscoelastic Solutions in Chemical Enhanced Oil Recovery." Doctoral thesis, 2017. https://tubaf.qucosa.de/id/qucosa%3A23214.

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Even in times of renewable energy revolution fossil fuels will play a major role in energy supply, transportation, and chemical industry. Therefore, increasing demand for crude oil will still have to be met in the next decades by developing new oil re-serves. To cope with this challenge, companies and researchers are constantly seeking for new methods to increase the recovery factor of oil fields. For that reason, many enhanced oil recovery (EOR) methods have been developed and applied in the field. EOR methods alter the physico-chemical conditions inside the reservoir. One possibility to achi

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