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Dissertations / Theses on the topic 'Gas saturation'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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1

Mulyadi, Henny. "Determination of residual gas saturation and gas-water relative permeability in water-driven gas reservoirs." Thesis, Curtin University, 2002. http://hdl.handle.net/20.500.11937/1294.

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The research on Determination of Residual Gas Saturation and Gas-Water Relative Permeability in Water-Driven Gas Reservoirs is divided into four stages: literature research, core-flooding experiments, development and application of a new technique for reservoir simulation. Overall, all stages have been completed successfully with several breakthroughs in the areas of Special Core Analysis (SCAL), reservoir engineering and reservoir simulation technology.Initially, a literature research was conducted to survey all available core analysis techniques and their individual characteristics. The surv
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2

Mulyadi, Henny. "Determination of residual gas saturation and gas-water relative permeability in water-driven gas reservoirs." Curtin University of Technology, Department of Petroleum Engineering, 2002. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=12957.

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The research on Determination of Residual Gas Saturation and Gas-Water Relative Permeability in Water-Driven Gas Reservoirs is divided into four stages: literature research, core-flooding experiments, development and application of a new technique for reservoir simulation. Overall, all stages have been completed successfully with several breakthroughs in the areas of Special Core Analysis (SCAL), reservoir engineering and reservoir simulation technology.Initially, a literature research was conducted to survey all available core analysis techniques and their individual characteristics. The surv
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3

Qian, Yanlin. "Gas injection as an alternative option for handling associated gas produced from deepwater oil developments in the Gulf of Mexico." Texas A&M University, 2003. http://hdl.handle.net/1969.1/215.

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The shift of hydrocarbon exploration and production to deepwater has resulted in new opportunities for the petroleum industry(in this project, the deepwater depth greater than 1,000 ft) but also, it has introduced new challenges. In 2001,more than 999 Bcf of associated gas were produced from the Gulf of Mexico, with deepwater associated gas production accounting for 20% of this produced gas. Two important issues are the potential environmental impacts and the economic value of deepwater associated gas. This project was designed to test the viability of storing associated gas in a saline sand
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4

Nunn, Jacob. "Investigations of Partial Gas Saturation on Diffusion in Low-permeability Sedimentary Rocks." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38396.

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The effect of partially saturated conditions on aqueous diffusion was investigated on the Upper Ordovician Queenston Formation shale from the Michigan Basin of southwest Ontario, Canada. Effective diffusion coefficients (De) were determined for iodide tracer on duplicate cm-scale samples from a core segment. Partially saturated conditions were created with a new gas-ingrowth method that takes advantage of the variability of N2 solubility with pressure. The method is designed to create partially saturated pores, quantify the level of partial gas/brine saturation within the tracer-accessible por
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5

Golkar, Fard Vahid. "Analysis of Interstitial Saturation in and Entrainment From Gas-Liquid Separation Media." Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/81887.

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This thesis developed a methodology in order to compare the performance of different types of coalescing filters (fibrous, knitted, and foam media) which has not been reported in literature. Moreover, the local optimum in pressure drop curve which identified in this work is a novel contribution to the field of interfacial science and gas-liquid separation which can significantly affect the coalescence filters design in future.
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6

Rosén, Tomas. "Determination of water saturation dependent gas transport properties of PEFC gas diffusion layers via the Lattice Boltzmann method." Thesis, KTH, Mekanik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-41814.

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7

Heber, Ryan Conover. "Evidence for Widespread, Low Saturation Gas Hydrate in the Barents and Norwegian Seas." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587052616831745.

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8

Hatzignatiou, Dimitrios Georgios. "Advances in well testing for solution-gas-drive reservoirs /." Access abstract and link to full text, 1990. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9033497.

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9

Noman, Rashed. "High velocity gas flow in porous media : effects of pore structure and liquid saturation." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47205.

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10

Abbasi, Ghazanfer R. "Investigating the wettability effect on gas hydrate bearing sediments." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2023. https://ro.ecu.edu.au/theses/2650.

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Natural gas trapped in hydrate deposits is a potentially enormous source of energy which can in principle be extracted from the underground reservoir structures. These reserves can potentially also catastrophically release very large quantities of greenhouse gases to the atmosphere. Natural Gas Hydrate (NGH) occurs in sediments under certain pressure and temperature conditions and has the potential to meet the increasing global energy demand. However, an efficient exploitation of NGH requires a precise characterization and understanding of the hydrate formation, accumulation and dissociation m
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11

Sahoo, Sourav Kumar. "The effect of gas hydrate saturation and distribution on the geophysical properties of marine sediments." Thesis, University of Southampton, 2018. https://eprints.soton.ac.uk/423695/.

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Gas hydrates are ice–like compounds found in marine sediments and permafrosts. A significant fraction of all known hydrocarbons in nature is in the form of hydrate. Gas hydrates are a potential energy resource, with possible roles in seafloor slope stability and climate change. As such, improved geophysical methods are needed to identify and quantify in situ natural hydrates to better study their potential impacts. Current estimates of the distribution and volume of gas hydrates vary widely, by orders of magnitude, largely because of uncertainties in geophysical inversion results. The presence
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12

Jihui, Jia. "Microscopic and Macroscopic Characterization on Mechanical Properties of Gas Hydrate." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215521.

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13

Kamgang, Thierry T. "Petro physical evaluation of four wells within Cretaceous gas-bearing sandstone reservoirs, In block 4 and 5 orange basin, South Africa." University of the Western Cape, 2013. http://hdl.handle.net/11394/4259.

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Masters of Science<br>Petrophysical evaluation of four wells within Cretaceous gas-bearing sandstone reservoirs in blocks 4 and 5 Orange Basin, South Africa. Thierry Kamgang The present research work evaluates the petrophysical characteristics of the Cretaceous gasbearing sandstone units within Blocks 4 and 5 offshore South Africa. Data used to carry out this study include: wireline logs (LAS format), base maps, well completion reports, petrography reports, conventional core analysis report and tabulated interpretative age reports from four wells (O-A1, A-N1, P-A1 and P-F1). The zones o
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14

Li, Liqing. "Water saturation and air/water interfacial area measurements by partitioning gas tracers in the vadose zone and landfills." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 176 p, 2008. http://proquest.umi.com/pqdweb?did=1464133931&sid=30&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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15

Eikevåg, Trude Kolle. "Experimental Study of Residual Gas Saturation using both Spontaneous and Forced Imbibition Method, where IsoparL is the Wetting Phase." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18469.

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Today most of the oil is produced. This has triggered a wider interest for gas reservoirs. To determine how much gas that can be recovered in a reservoir it is important with good knowledge of the trapped gas saturation. This includes getting more information about trapped gas which demands more research in this area. Trapped gas saturation is recognized as an important factor in the process of recovering gas. In this project, literature has been studied and a lot of experimental work was done. Several papers have been read, and a basic knowledge of trapped gas, both what it is and how it can
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16

Ogunrewo, Olakunle. "Use of two-phase pseudo-pressure for well test analysis of gas condensate and volatile oil below saturation pressure." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/24771.

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This study examines the benefits of using two-phase pseudo-pressure in three areas: (1) rate dependent skin analysis; (2) bottomhole backpressure deliverability forecasting; and (3) deconvolution of the pressure transient response of wells producing from gas condensate and volatile oil reservoirs flowing below saturation pressure. The study was carried out with compositional simulations whose results were compared with field data. It was shown that below saturation pressure, single-phase pseudo-pressure analysis of gas condensate and pressure analysis of volatile oil does not correctly estimat
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17

Aygun, Seymen Murat. "Gas Sensors Based on Ceramic p-n Heterocontacts." Ames, Iowa : Oak Ridge, Tenn. : Ames Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2004. http://www.osti.gov/servlets/purl/837264-2ckydm/webviewable/.

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Thesis (M.S.); Submitted to Iowa State Univ., Ames, IA (US); 19 Dec 2004.<br>Published through the Information Bridge: DOE Scientific and Technical Information. "IS-T 2498" Seymen Murat Aygun. US Department of Energy 12/19/2004. Report is also available in paper and microfiche from NTIS.
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18

Fsadni, Andrew M. "The fundamentals of two-phase flow in wet domestic central heating systems." Thesis, Brunel University, 2012. http://bura.brunel.ac.uk/handle/2438/6953.

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An emerging trend in the building services industry is the installation of passive deaerators on the flow line of domestic wet central heating systems. To date, no data and theoretical models predicting the two-phase flow characteristics in domestic wet central heating systems are available in the open literature. This gap in literature has prevented essential design improvements to passive deaerators thus impeding the efficiency enhancement of such devices. Hence, the current study is aimed at assisting designers of deaeration devices by providing fundamental data and model correlations with
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19

Teye, Frederick David. "Continuous flash extraction of alcohols from fermentation broth." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/31418.

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A new method of in situ extraction of alcohols from fermentation broth was investigated. The extraction method exploited the latent advantages of the non-equilibrium phase interaction of the fluid system in the flash tank to effectively recover the alcohol. Carbon dioxide gas ranging from 4.2L/min to 12.6L/min was used to continuously strip 2 and 12% (v/v) ethanol solution in a fermentor with a recycle. Ethanol and water in the stripped gas was recovered by compressing and then flashing into a flash tank that was maintained at 5 to 70bar and 5 to 55oC where two immiscible phases comprising CO2
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20

Sun, Yuhua. "Localized CO2 Corrosion in Horizontal Wet Gas Flow." Ohio : Ohio University, 2003. http://www.ohiolink.edu/etd/view.cgi?ohiou1049894855.

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21

Calisgan, Huseyin. "Comprehensive Modelling Of Gas Condensate Relative Permeability And Its Influence On Field Performance." Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606667/index.pdf.

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The productivity of most gas condensate wells is reduced significantly due to condensate banking when the bottom hole pressure falls below the dew point. The liquid drop-out in these very high rate gas wells may lead to low recovery problems. The most important parameter for determining condensate well productivity is the effective gas permeability in the near wellbore region, where very high velocities can occur. An understanding of the characteristics of the high-velocity gas-condensate flow and relative permeability data is necessary for accurate forecast of well productivity. In order to
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22

Camy, Georges. "Sources laser ultrastables en spectroscopie de saturation : réalisation d'étalons optiques de fréquence et caractérisation de leurs qualités." Paris 13, 1985. http://www.theses.fr/1985PA132009.

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On montre que la stabilisation en fréquence des lasers à argon ionisé sur des transitions de la molécule d'iode détectées par spéctrométrie de saturation permet de réaliser des étalons de fréquence de très hautes performances dans le domaine optique. Imbrication de recherches spectroscopiques et métrologiques telles que : étude de laser à argon ionisé, structure hyperfine de la molecule I(2), spéctromètre de saturation à décalage de fréquence, profil d'absorption de la vapeur d'iode, spéctrométrie de saturation hétérodyne à haute fréquence
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23

Boher, Cedric. "Etude expérimentale et modélisation de la diffusion gazeuse à travers des milieux poreux partiellement saturés en eau. Application aux verres Vycor, géopolymères et pâte de ciment CEM V." Thesis, Toulouse, INSA, 2012. http://www.theses.fr/2012ISAT0014/document.

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Cette étude a pour but de documenter la relation qui existe entre les propriétés de transfert d’un matériau (répartition en taille de pores, porosité totale accessible à l’eau, saturation en eau), et son coefficient de diffusion. Pour cela, des matériaux ayant une porosité quasi-monomodale sont utilisés : verres Vycor® et géopolymères ; ainsi que des matériaux ayant une porosité complexe : pâtes de ciment CEM V. L’utilisation des verres Vycor® et des géopolymère permet de quantifier la diffusion gazeuse, en fonction de la saturation en eau, de matériaux ayant des pores de même dimension, ou du
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24

Fu, Xiaojian. "Coupure Hydraulique et Potentiel de Production en Gaz de Réservoirs de Grès « Tight » : Etude Expérimentale." Thesis, Ecole centrale de Lille, 2013. http://www.theses.fr/2013ECLI0021/document.

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Les réservoirs dits « tight gas » sont constitués de grès de faible perméabilité ayant des propriétés petro-physiques susceptibles de nuire à la productivité du gisement. Une importante zone de transition est observée in situ dans laquelle ni l’eau ni le gaz ne sont suffisamment mobiles pour permettre une extraction industrielle : c’est ce que l’on appellera le « permeability jail ». Cette étude vise principalement à caractériser l’influence du chargement mécanique (via l’utilisation de différentes pressions de confinement) et de la nature des roches (roches provenant de différents puits et pr
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25

Ярема, А. В. "Особливості поширення та перспективи нафтогазоносності палеогенових порід-колекторів у межах Бориславського нафтогазопромислового району". Thesis, Івано-Франківський національний технічний університет нафти і газу, 2012. http://elar.nung.edu.ua/handle/123456789/4429.

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У дисертаційній роботі уточнено характер поширення ефективних товщин палеогенових порід-колекторів у межах Бориславського НГПР. Виявлено, що ділянки, для яких характерне перешарування тонких прошарків щільних пісковиків, алевролітів та аргілітів, є сприятливими для формування різного типу тріщинуватості. Підтверджено, що у зонах середнього та пізнього катагенезу розвиток порід-колекторів з покращеними фільтраційно-ємнісними властивостями зумовлений вторинною пористістю. Встановлено, що при депресіях на пласт менше 7,5 МПа існує надійний гідродинамічний зв'язок між тріщинами і порами породи-кол
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Iqbal, Muhammad Azhar. "The effect of deep traps in GaAs FETs in current saturation." Thesis, Lancaster University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358193.

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27

Федорів, В. В. "Виділення поліміктових пісковиків у кам'яновугільних та пермських нафтогазоносних відкладах центральної частини Дніпровсько-Донецької западини за даними ядерно-фізичних досліджень". Thesis, Івано-Франківський національний технічний університет нафти і газу, 2000. http://elar.nung.edu.ua/handle/123456789/1975.

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Захищаються результати наукових досліджень, у яких висвітлені основні теоретичні, експериментальні і практичні положення по вирішенню важливої актуальної проблеми - підвищення геолого-геофізичної інформативності діагностики порід-колекторів в геологічних розрізах, які містять породи поліміктового типу. З цією метою розроблено схему комплексного підходу до вивчення порід-колекторів поліміктового типу в розрізах центральної частини Дніпровсько-Донецької западини. На основі теоретико-експери ментальних даних вивчення такого типу колекторів, розроблено блок методик інтерпретації отриманих резул
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28

Dalili, Farnosh. "Humidification in Evaporative Power Cycles." Doctoral thesis, KTH, Chemical Engineering and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3469.

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<p>Evaporative gas turbine cycles (EvGT) show an exceptionalexhaust heat recovery potential, which makes them a strongcompetitor to other advanced gas turbine cycles, especiallyfrom small to intermediate sizes. Evaporative gas turbines aredistinguished by humidifying the working fluid beforecombustion at temperatures below the boiling point of water;and the heat required for evaporation of water is partly takenout of the exhaust gas. Thus, humidification is a key operationin these cycles. This thesis investigates, both theoreticallyand experimentally, two alternative approaches tohumidificatio
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Rabot, Eva. "Le contrôle des émissions de protoxyde d'azote par le fonctionnement hydrique des sols." Thesis, Orléans, 2014. http://www.theses.fr/2014ORLE2076.

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Les sols et les activités agricoles qu’ils supportent, contribueraient à environ 2/3 des émissions globales de protoxyde d’azote (N2O), un puissant gaz à effet de serre. L’objectif de la thèse était la compréhension des déterminismes des émissions de N2O liés aux propriétés hydriques des sols. Des expérimentations de laboratoire permettant le contrôle hydrique fin d’échantillons de sol, en saturation et en désaturation, et la mesure des flux de N₂O ont été menées. Un couplage avec la tomographie par rayons-X a par ailleurs permis de caractériser la connectivité gazeuse. Enfin, une démarche de
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30

Thapa, Rajesh. "Doppler-free spectroscopy of acetylene in near infrared spectral region inside photonic band gap fiber." Manhattan, Kan. : Kansas State University, 2005. http://hdl.handle.net/2097/133.

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31

Liu, JiangFeng. "Etanchéité de l’interface argilite-bentonite re-saturée et soumise à une pression de gaz, dans le contexte du stockage profond de déchets radioactifs." Thesis, Ecole centrale de Lille, 2013. http://www.theses.fr/2013ECLI0011/document.

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En France, le système de stockage profond de déchets radioactifs envisagé est constitué d’une barrière naturelle (roche hôte argileuse, argilite) et de barrières artificielles, comprenant des bouchons d’argile gonflante (bentonite)-sable pour son scellement. L'objectif de cette thèse est d’étudier l’efficacité du gonflement et du scellement des bouchons placés dans l’argilite, sous l’effet, à la fois, d’une pression d’eau et d’une pression de gaz (tel que formé dans le tunnel). Pour évaluer la capacité de scellement du bouchon bentonite/sable partiellement saturé en eau, on a évalué sa perméab
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Коваль, Я. М. "Методологічні основи підвищення ефективності визначення газонасичення складнопобудованих порід-колекторів за результатами геофізичних досліджень свердловин". Thesis, Івано-Франківський національний технічний університет нафти і газу, 2012. http://elar.nung.edu.ua/handle/123456789/1872.

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У дисертаційній роботі вирішуються актуальні питання підвищення достовірності визначення коефіцієнта газонасичення порід-колекторів складної будови за результатами геофізичних досліджень свердловин. На основі аналізу досліджень, проведених у дисертаційній роботі, встановлено основні чинники, які призводять до недостовірного визначення питомого електричного опору пластів-колекторів, а в подальшому і до похибки у визначенні коефіцієнта газонасичення. З метою підвищення достовірності визначення коефіцієнта газонасичення складнопобудовних порід-колекторів створено модель електропровідності м
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Zohdy, Ismail Hisham. "Modeling Permissive Left-Turn Gap Acceptance Behavior at Signalized Intersections." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/35691.

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The research presented in this thesis, studies driver gap acceptance behavior for permissive left turn movements at signalized intersections. The thesis attempts to model the gap acceptance behavior using three different approaches, a deterministic statistical approach, a stochastic approach, and a psycho-physical approach. First, the deterministic statistical modeling approach is conducted using logistic regression to characterize the impact of a number of variables on driver gap acceptance behavior. The variables studied are the gap duration, the driverâ s wait time in search of an acceptab
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Narayan, Bravishma. "Study of III-N heterostructure field effect transistors." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37299.

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This thesis describes the design, fabrication and characterization of AlGaN/GaN Heterostructure Field E ect Transistors (HFETs) grown by a Metal Organic Chemical Vapor Deposition (MOCVD) on sapphire substrates. The objective of this research is to develop AlGaN/GaN power devices with high breakdown voltage (greater than 1 kV) and low turn-on resistance. Various characteristics such as current drive (Idss), transconductance (gm) and threshold voltage (Vth) have also been measured and the results have been discussed. Two major challenges with the development of high breakdown voltage AlGaN/GaN H
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35

Andre, Carrie L. "III-V semiconductors on SiGe substrates for multi-junction photovoltaics." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1100290985.

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36

Park, Pil Sung. "Advanced Channel Engineering in III-Nitride HEMTs for High Frequency Performance." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1386015448.

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37

Nguyen, Dac Trung. "Spectroscopie optique nonlinéaire à 1,55 μm de boîtes quantiques et de nanotubes de carbone". Phd thesis, Université Pierre et Marie Curie - Paris VI, 2011. http://tel.archives-ouvertes.fr/tel-00628240.

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La technique originale de spectroscopie par saturation d'absorption, dite holeburning spectral, est mise en oeuvre pour étudier l'élargissement homogène de transitions optiques à 1,55 μm dans deux types de nanostructures. Pour les boîtes quantiques GaN/AlN, notre expérience constitue la première mesure directe de la largeur homogène de la transition intrabande s − pz. Des études en puissance démontrent le rôle prédominant des processus Auger dans la relaxation de population des niveaux. Le profil spectral d'absorption homogène s'avère gaussien. La forte augmentation de la largeur homogène entr
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Koga, Itaru. "Monitoring of Splanchnic Regional Perfusion : An Experimental Study of New Application and Validation." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl.[distrbutör], 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3611.

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39

Bhatnagar, Gaurav, Walter G. Chapman, George J. Hirasaki, Gerald R. Dickens, and Brandon Dugan. "RELATING GAS HYDRATE SATURATION TO DEPTH OF SULFATE-METHANE TRANSITION." 2008. http://hdl.handle.net/2429/1179.

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Gas hydrate can precipitate in pore space of marine sediment when gas concentrations exceed solubility conditions within a gas hydrate stability zone (GHSZ). Here we present analytical expressions that relate the top of the GHSZ and the amount of gas hydrate within the GHSZ to the depth of the sulfate-methane transition (SMT). The expressions are strictly valid for steady-state systems in which (1) all gas is methane, (2) all methane enters the GHSZ from the base, and (3) no methane escapes the top through seafloor venting. These constraints mean that anaerobic oxidation of methane (AOM)
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Behseresht, Javad. "Physical controls on hydrate saturation distribution in the subsurface." 2012. http://hdl.handle.net/2152/19558.

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Many Arctic gas hydrate reservoirs such as those of the Prudhoe Bay and Kuparuk River area on the Alaska North Slope (ANS) are believed originally to be natural gas accumulations converted to hydrate after being placed in the gas hydrate stability zone (GHSZ) in response to ancient climate cooling. A mechanistic model is proposed to predict/explain hydrate saturation distribution in “converted free gas” hydrate reservoirs in sub-permafrost formations in the Arctic. This 1-D model assumes that a gas column accumulates and subsequently is converted to hydrate. The processes considered are the vo
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Lu, Hailong, Huang Zeng, John A. Ripmeester, Tatsuji Kawasaki, Tetsuya Fujii, and Masaru Nakamizu. "SEDIMENT CONTROL ON THE SATURATION LEVEL OF GAS HYDRATE IN NATURE ENVIRONMENTS." 2008. http://hdl.handle.net/2429/1101.

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A series of studies have been carried out to elucidate the sediment effect on the saturation level of methane hydrate in sediments. The specimens tested covered most of the natural sediment types, with various combinations of particle size and mineral composition. The results obtained indicate that particle size and clay contents are the two key factors determining the saturation level of gas hydrate in sediments: the finer the particle size and/or the higher the clay content, the lower the hydrate saturation. The observed particle size effect and clay effect on hydrate saturation can be accre
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Hsiao, Hung-Yi, and 蕭鴻義. "Study of Semi-Flow High Pressure Vapor-Liquid Equilibrium and Gas-Saturation Vapor Pressure." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/18863804460300539990.

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碩士<br>靜宜大學<br>應用化學系<br>88<br>Knowledge of vapor-liquid equilibria at high pressure is very important for numerous industrial applications, especially for separation process design with the use of the supercritical CO2. Vapor pressure is one of the important physical properties. Also, an excellent fit of vapor pressures is necessary in the phase equilibrium data reduction. The objective of this research is to construct a high-pressure vapor-liquid equilibrium (VLE) apparatus by a semi-flow type and a vapor pressure measurement apparatus via the gas-saturation method. These two appar
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Lin, Yi-chin, and 林義欽. "Velocity structure and gas hydrate saturation study on Yuan-an ridge offshore southwest Taiwan." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/22512810987387544277.

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碩士<br>國立中央大學<br>地球物理研究所<br>99<br>Interest in natural gas hydrates has grown in recent years with the recognition of the gas-hydrate bearing sediments offshore the southwestern Taiwan. Several oceanographic cruises were conducted in the aim of acquiring more information about the presence of gas hydrate. The collected reflection and refraction seismic data are extensively used to map and interpret the gas hydrate zones for the area of the Hengchun Ridge deformation front, accretionary wedge of the eastern subducting Maniala subduction zone, and the passive China continental Margin. Among them,
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Tu, Shu-Lin, and 塗書琳. "Using Pre-stack Depth Migration Technique to Analyze the Characteristics and Saturation of Gas Hydrate Offshore Southwestern Taiwan." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/76379657231772836024.

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碩士<br>臺灣大學<br>海洋研究所<br>98<br>The area offshore southwestern Taiwan is the place where active Luzon accretionary wedge province meets the passive China continental margin province. Not only marine seismic reflection data indicate that large amount of gas hydrates and free gases may exist beneath the seafloor sediments, but geochemical data also reveal high methane flux and shallow sulfide-methane interface (SMI) at many cored locations. In this study, we intend to investigate detail distribution and possible formation and migration of gas hydrates in both active and passive continental margins.
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Kawasaki, Tatsuji, Tetsuya Fujii, Masaru Nakamizu, Hailong Lu, and John A. Ripmeester. "EXPERIMENTAL STUDIES OF THE SATURATION LEVEL OF METHANE HYDRATE IN THE EASTERN NANKAI TROUGH SEDIMENTS." 2008. http://hdl.handle.net/2429/1095.

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The pore saturation of natural gas hydrate in sediments is a key parameter for estimating hydrate resources in a reservoir. For a better understanding of gas hydrate distribution, the experimental study of the pore saturation of methane hydrate in sediments from a hydrate reservoir in the Eastern Nankai Trough have been carried out. In total, eleven samples, comprising sand, silty sand, silt, and representative of the main sediment types identified in the Eastern Nankai trough, were tested. The results obtained clearly indicate a particle size and clay content dependent trend: almost 100% of p
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Wolf, Mitchell. "Oxygen saturation surrounding deep-water formation events in the Labrador Sea from Argo-O2 data." Thesis, 2017. https://dspace.library.uvic.ca//handle/1828/8401.

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Deep-water formation supplies oxygen-rich water to the deep sea, spreading throughout the ocean via the global thermohaline circulation. Models suggest that gases in newly formed deep-water do not come to equilibrium with the atmosphere. However, direct measurements during wintertime convection are scarce, and the controls over the extent of this disequilibria are poorly quantified. Here we show that oxygen is consistently undersaturated at -6.3% to -7.6% in the Labrador Sea at the end of convection, when convection reaches deeper than 800 m. Deeper convection resulted in greater undersaturati
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Shih, Tzu-Yung, and 施姿詠. "Application of P-S converted waves in estimating the gas-hydrate saturation of the sedimentary layer near Yuan-An Ridge." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/70507132391150528026.

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碩士<br>國立臺灣海洋大學<br>應用地球科學研究所<br>101<br>In this study, we analyze four-component (hydrophone, vertical and two horizontal components) data recorded from 25 ocean-bottom seismometers (OBS) in 2008 for investigating converted shear waves and for estimating gas-hydrate saturation west of the Yuan-An Ridge off SW Taiwan. Firstly, initial Vp/Vs models west of the Yuan-An Ridge were constructed for P-wave velocity models based on the previous studies. Subsequently, travel time and amplitude of the P-S converted waves were synthesized based on initial Vp/Vs models and were superimposed on four-compon
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Goldberg, David, Gilles Guerin, Alberto Malinverno, and Ann Cook. "VELOCITY ANALYSIS OF LWD AND WIRELINE SONIC DATA IN HYDRATE-BEARING SEDIMENTS ON THE CASCADIA MARGIN." 2008. http://hdl.handle.net/2429/1619.

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Downhole acoustic data were acquired in very low-velocity, hydrate-bearing formations at five sites drilled on the Cascadia Margin during the Integrated Ocean Drilling Program (IODP) Expedition 311. P-wave velocity in marine sediments typically increases with depth as porosity decreases because of compaction. In general, Vp increases from ~1.6 at the seafloor to ~2.0 km/s ~300 m below seafloor at these sites. Gas hydrate-bearing intervals appear as high-velocity anomalies over this trend because solid hydrates stiffen the sediment. Logging-while-drilling (LWD) sonic technology, however,
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Relvas, Cristina Kohlhoff Feijó. "Inclusive interaction design: bridging the gap between information visualization perception and color vision deficiency users." Master's thesis, 2018. http://hdl.handle.net/10400.26/25081.

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It’s becoming increasingly important to design for Inclusivity, meaning building products that are accessible to all type of users, namely color vision deficiency (CVD) deuteranope users. Along with that, we can say that Information Visualization plays a big role in the understanding of how ou world functions, since the amount of produced data (2.5 exabytes) is increasing every day. In this way, this project aims to bridge the gap between Information Visualization perception and color vision deficiency users, by exploring the effects that saturation as a variable, applied through an interacti
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