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Dissertations / Theses on the topic 'Petroleum engineering'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Horsfield, Mark Andrew. "Nuclear Magnetic Resonance in petroleum engineering." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334172.

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2

Glanfield, Thomas H. 1980. "Energy required to produce petroleum products from oil sand versus other petroleum sources." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/29589.

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3

Rudraraju, VRS Raju. "Ultrasonic Data Communication through Petroleum." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1271703312.

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4

Leamon, Gregory Robert Petroleum Engineering Faculty of Engineering UNSW. "Petroleum well costs." Awarded by:University of New South Wales. School of Petroleum Engineering, 2006. http://handle.unsw.edu.au/1959.4/30599.

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This is the first academic study of well costs and drilling times for Australia???s petroleum producing basins, both onshore and offshore. I analyse a substantial database of well times and costs sourced from government databases, industry and over 400 recent well completion reports. Three well phases are studied - Pre-Spud, Drilling and Completion. Relationships between well cost factors are considered, including phase time, phase cost, daily cost, rig day rate, well depth, basin, rig type, water depth, well direction, well objective (e.g. exploration), and type of completion (P&A or producer

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5

Silveira, Mastella Laura. "Semantic exploitation of engineering models : application to petroleum reservoir models." Centre de géosciences (Fontainebleau, Seine et Marne), 2010. https://pastel.hal.science/pastel-00005770.

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Ce travail propose des solutions innovantes en vue de l'exploitation des modèles d'ingénierie hétérogènes. Il prend pour exemple le domaine de la prospection pétrolière. Les stratégies de prospection sont élaborées à partir de représentations tridimensionnelles du sous-sol appelées modèles géologiques. Ceux-ci reposent sur un grand nombre de données hétérogènes générées au fur et à mesure de la conduite de l'exploration par des activités telles que la prospection séismique, les forages, l'interprétation des logs de puits. A fin d'optimisation, les utilisateurs finaux souhaitent, pouvoir retrou

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6

Sousa, Bruno Rangel de 1985. "Análise de teste em poços inclinados." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263149.

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Orientador: Rosângela Barros Zanoni Lopes Moreno<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências<br>Made available in DSpace on 2018-08-21T10:32:47Z (GMT). No. of bitstreams: 1 Sousa_BrunoRangelde_M.pdf: 2665889 bytes, checksum: d124b91d0b604845255264f303b44b22 (MD5) Previous issue date: 2012<br>Resumo: Apresenta-se nesta dissertação um estudo sobre o comportamento transitório da pressão em poços inclinados submetidos a teste de poço. A partir de referências disponíveis na literatura, são apresentadas soluções analíti

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7

Kumar, Ankesh. "Engineering behavior of oil shale under high pressure after thermal treatment." Thesis, IIT, Delhi, 2019. http://eprint.iitd.ac.in:80//handle/2074/8076.

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8

Roychaudhuri, Basabdatta. "Spontaneous Countercurrent and Forced Imbibition in Gas Shales." Thesis, University of Southern California, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10635652.

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<p> In this study, imbibition experiments are used to explain the significant fluid loss, often more than 70%, of injected water during well stimulation and flowback in the context of natural gas production from shale formations. Samples from a 180 ft. long section of a vertical well were studied via spontaneous and forced imbibition experiments, at lab-scale, on small samples with characteristic dimensions of a few cm; in order to quantify the water imbibed by the complex multi-porosity shale system. The imbibition process is, typically, characterized by a distinct transition from an initial

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9

Johnson, Andrew Charles. "Constructing a Niobrara Reservoir Model Using Outcrop and Downhole Data." Thesis, Colorado School of Mines, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10843100.

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<p> The objective of this study is threefold: 1) Build a dual-porosity, geological reservoir model of Niobrara formation in the Wishbone Section of the DJ Basin. 2) Use the geologic static model to construct a compositional model to assess performance of Well 1N in the Wishbone Section. 3) Compare the modeling results of this study with the result from an eleven-well modeling study (Ning, 2017) of the same formation which included the same well. The geologic model is based on discrete fracture network (DFN) model (Grechishnikova 2017) from an outcrop study of Niobrara formation.</p><p> This

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10

Alaiyegbami, Ayodele O. "Porescale Investigation of Gas Shales Reservoir Description by Comparing the Barnett, Mancos, and Marcellus Formation." Thesis, University of Louisiana at Lafayette, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1557534.

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<p> This thesis describes the advantages of investigating gas shales reservoir description on a nanoscale by using petrographic analysis and core plug petrophysics to characterize the Barnett, Marcellus and Mancos shale plays. The results from this analysis now indicate their effects on the reservoir quality. Helium porosity measurements at confining pressure were carried out on core plugs from this shale plays. SEM (Scanning Electron Microscopy) imaging was done on freshly fractured gold-coated surfaces to indicate pore structure and grain sizes. Electron Dispersive X-ray Spectroscopy was don

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11

Kunieda, Makoto. "Molecular Dynamics Study of Oil-Water Interfacial Equilibrium in Petroleum Engineering." 京都大学 (Kyoto University), 2012. http://hdl.handle.net/2433/157545.

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12

Santos, Manzano Fidel. "Supply chain practices in the petroleum downstream." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33345.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Engineering Systems Division, 2005.<br>Includes bibliographical references (leaves 49-51).<br>This thesis studies current supply chain practices in the petroleum downstream industry, using ExxonMobil as a case study. Based on the analysis of the literature and the interaction with industry experts, this work describes the main supply chain issues and challenges in the downstream sector. Moreover, supply chain strategies used by different players in the industry are studied, analyzing in particular the progressive but slow shift of the in

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13

Alhajeri, Salem Hasan Hamad. "Online electromagnetic wave monitoring system for petroleum industry applications." Thesis, Liverpool John Moores University, 2010. http://researchonline.ljmu.ac.uk/5939/.

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The general demand for automating industrial processes in the oil industry has increased rapidly in parallel with sensors and their underlying technology. Since the early 1980s, the particular problem, which has been representing the extremes in complexity in the oil industry, is the measurement of multiphase flow components, the mixing ratio of oil, water, and gas flowing in a pipeline. Electromagnetic (EM) Wave sensors can provide an attractive solution, because microwave signals can penetrate most materials allowing the measurement to be representative for the cross section of the pipeline.

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14

Critchley, John G. "Composting of soils contaminated with heavy petroleum hydrocarbons." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/MQ48146.pdf.

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15

Mota-Sanchez, Freddy. "Application of analytic hierarchy process in upstream risk assessment and project evaluations." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1959.

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16

Roth, Mark M. Jr. "Depositional Environment of the Carbonate Cap Rock at the Pine Prairie Field, Evangeline Parish, Louisiana| Implications of Salt Diapirism on Cook Mountain Reservoir Genesis." Thesis, University of Louisiana at Lafayette, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10685670.

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<p> The Pine Prairie Field is situated on a salt dome in northern Evangeline Parish, located in south-central Louisiana. Pine Prairie contains the only known Cook Mountain Formation hydrocarbon reservoir in Louisiana. Operators have targeted and produced hydrocarbons from the Cook Mountain reservoir in eight wells at the Pine Prairie Field. The source and origin of the Cook Mountain’s reservoir properties are unknown. The objective of this study is to determine the origin of the Cook Mountain Formation’s reservoir properties by identifying the processes associated with the formatio

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17

Dada, Olamide. "Reservoir Characterization of the Spraberry Formation, Borden County, West Texas." Thesis, University of Louisiana at Lafayette, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1557545.

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<p> The Spraberry Formation is a Leonardian age submarine fan deposit restricted to the Midland Basin. The formation consists of very fine-grained sandstone, medium to coarse grain size siltstones, organic shales and carbonate mudstones. These rocks show variability in sedimentary structures and bedding types varied from thinly laminated to convolute laminations. Bioturbations were present in some samples and soft sediment deformation, such as water escape features, sediment loading and flame structures. </p><p> The Spraberry Formation is a naturally fractured reservoir with low porosity an

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18

David, Sergio Z. "A Practical Approach for Formation Damage Control in Both Miscible and Immiscible CO2 Gas Flooding in Asphaltenic Crude Systems Using Water Slugs and Injection Parameters." Thesis, University of Louisiana at Lafayette, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10196386.

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<p> CO<sub>2</sub> flooding has proven to be an effective technique for enhanced oil recovery. However, the application of CO<sub>2</sub> flooding in the recovery process of asphaltenic crude systems is often avoided, as high asphaltene precipitation rates may occur. While the effects of asphaltene concetration and CO<sub>2</sub> injection pressure on asphaltene precipitation rate have been the focus of many studies, asphaltene precipitation rate is not a reliable factor to predict the magnitude of asphaltene-induced formation damage. Wettability alteration is only caused by the immobile aspha

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19

Wang, Ming. "An Experimental Investigation of Enhanced Oil Recovery Using Algae Polymers." Thesis, University of Louisiana at Lafayette, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10270916.

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<p>Enhanced Oil Recovery (EOR) is regarded as new and effective technology to produce oil and gas in recent years. EOR technology has been widely used as a method of enhancing remaining oil to several oil fields? production. This experiment provides detailed analysis and approves the effectiveness of algae polymer. It also gives some suggestions, which were based on information obtained from other researches for future test.

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20

Salvati, Peter. "The Examination of Fracture Behavior in Anisotropic Rock with Digital Image Correlation." Thesis, University of Louisiana at Lafayette, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10287221.

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<p>Modern hydraulic fracturing designs assume that drilled formations are both isotropic and homogeneous, and fractures are linear and symmetrical. However, unconventional resources are often obtained from formations that are both anisotropic and heterogeneous, resulting in complex fracture behavior. The objective of this study is to evaluate fracture behavior based on the influence of anisotropy and water saturation. Isotropic and homogeneous Austin Chalk, Berea Sister Gray Sandstone, and Silurian Dolomite, laminated anisotropic and heterogeneous Parker Sandstone, Nugget Sandstone, and Winter

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21

Wang, Bin. "An Embedded Method for Near-Wellbore Streamline Simulation." Thesis, University of Louisiana at Lafayette, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10637616.

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<p> Reactive transport phenomena, such as CO2 sequestration and Microbial EOR, have been of interest in streamline-based simulations. Tracing streamlines launched from a wellbore is important, especially for time-sensitive transport behaviors. However, discretized gridblocks are usually too large as compared to the wellbore radius. Field-scale simulations with local-grid-refinement (LGR) models often consume huge computational time. An embedded grid-free approach to integrate near-wellbore transport behaviors into streamline simulations is developed, which consists of two stages of development

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22

Guedez, Andreina. "Developing Correlations for Velocity Models in Vertical Transverse Isotropic Media| Bakken Case Study." Thesis, University of Louisiana at Lafayette, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10615682.

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<p> The vertical and horizontal mechanical properties of a VTI medium can be obtained from five stiffness coefficients (C<sub>33</sub>, C<sub>44</sub>, C<sub>66</sub>, C<sub>13</sub>, and C<sub>12</sub>) using velocities at different angles and density measurements. However, when using well log data for vertical wells, only three out of the five elastic constants can be calculated. The sonic tool cannot measure C<sub>13</sub> and C<sub>12</sub>; thus, different empirical models have been proposed to determine them, making assumptions that do not provide completely accurate results. In this pap

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23

Zhang, Xiaohui. "Development and Testing of a Combined Neural-Genetic Algorithm to Identify CO2 Sequestration Candidacy Wells." Thesis, University of Louisiana at Lafayette, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1594272.

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<p>This study was motivated by how to use statistical tool to identify the candidacy wells for CO2 Capture and Sequestration based on the idea of using Artificial Neural Networks to predict the leakage index of a well. A Combined Neural-Genetic Algorithm was introduced to avoid BP neural network getting a local minimum because Genetic Algorithm simulates the survival of the fittest among individuals over consecutive generation. Based on the algorithm, 1356 lines of C code were composed using Microsoft Visual Studio 2010. The Combined Neural-Genetic Algorithm developed in this thesis is able t

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24

Meaux, Bryce. "Effect of Formation Deformation on Casing Standoff in Highly Deviated and Horizontal Wells." Thesis, University of Louisiana at Lafayette, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1593253.

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<p> It has been reported that the Macondo tragedy was caused by a faulty cementing operation. This, in turn, has forced operators to pay special attention to this aspect of well completion. One of the contributing factors to the faulty cementing operation of Macondo is said to be an insufficient number of casing centralizers. This is important because the success of any casing cementing operation is largely dependent on the centralization of the casing in the wellbore.</p><p> Centralizers are placed on the casing strings at predetermined distances in an effort to retain the casing in the cen

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25

Cai, Xiao. "Numerical Simulation of Deposition and Piling of Particles in Fractures." Thesis, University of Louisiana at Lafayette, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10816473.

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<p>The essence of many issues in different fields is the transport and piling of particles in fluid within a limited space. A semi-analytical model is developed in this study to describe the motions of a particle in fluid and simulate the piling process of particles in a fracture. As a result, the configuration of a particle pile and the time at which the pile totally seal the fracture face are predicted. This model possesses a wide range of applications. Two types of applications of this model are introduced, including the prediction of proppant screen-out in hydraulic fracturing vertical and

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26

Zhang, Chi. "Effect of Proppant Wettability on Two-Phase Flow Efficiency in Fractured Water-Wet Sandstone." Thesis, University of Louisiana at Lafayette, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10826981.

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<p> Ceramic proppants are commonly used in hydraulic fractures. However, people typically focus on controlling properties of proppants such as the material, specific gravity, and particle size, and less attention is paid to the effect of proppant wettability. The purpose of this study is to investigate the effect of proppant wettability on two-phase flow efficiency in fractured water-wet sandstones. The results show that oil-wet proppants are more effective in improving oil flow efficiency than water-wet proppants in both low-water saturation cores and high-water saturation cores. Therefore, s

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27

Chuprin, Maksym. "Effect of Proppant Type on Economics of Shale Oil Production from the Bakken Formation." Thesis, University of Louisiana at Lafayette, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10826999.

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<p> Hydraulic Fracturing is a cost-effective technique that has been widely integrated and applied to commercial production of oil and gas from unconventional reservoirs. Advancement of this technique brings more complexity into it, making optimization process more complicated in terms of economic analysis and decision making. Selection of proppant for treatment is a crucial and essential decision that has a significant impact on fracturing stimulation and well economics. This analysis indicates advantages and disadvantages of different types of proppant and provides a comparison of proppant p

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28

Parrish, Alexis Fay. "The Application of SAR Analysis to Measure Relative Permeability to Specific Ions in the Eagle Ford Shale." Thesis, University of Louisiana at Lafayette, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10845893.

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<p> Abstract In this work, we studied the Eagle Ford Shale and experimented in detail to create a baseline to address the relative permeability of specific ions in shale. The study identifies that: (1) Ions are dispersed in a specific sequence (Na<sup>+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup>). (2) As ions are dispersed, this allows the gas bubbles out of the shale/soil and forces the flakes and fragments to float to the top of the water on the vessel. The floating particles, depending on the type of cations released from the shale mass move towards a specific ion electrode. (3) Detachment or

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29

Salazar, Brandon. "Experimental Investigation and Data Analytics of Annular Cutting Velocity in Inclined and Horizontal Pipes." Thesis, University of Louisiana at Lafayette, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10981337.

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<p> The lack of cutting transportation during drilling operations can lead to large amounts of non productive time and costly solutions to address the issue. The objective of this study was to investigate the cutting velocity through an experimental approach. Dimensionless groups were formed based on the independent variables that affected cutting velocity. The experimental approach was analyzed through film software, which allowed for the cutting velocities to be calculated. Regression models of cutting velocity with respect to each dimensionless group were formed and validated through a stat

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30

Shrey, Shubhankar. "Modifying Proppant Surface with Superhydrophobic Coating to Enhance Fracture Conductivity." Thesis, University of Louisiana at Lafayette, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10981390.

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<p> Superhydrophobic coating reduces the fluid/solid interaction leading to ultra-hydrophobicity or the Lotus effect. The objective of this study is to determine how this phenomenon can be applied in petroleum production systems to enhance fluid flow in propped fractures using superhydrophobic coating on the surface of proppants. Permeability and wettability of coated sandstone samples are compared with the non-coated ones to create a base case for the study. Later sand packs are tested to determine the magnitude of enhancement in fracture conductivity after the modification is applied on sand

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Bujarbarua, Vikram. "Production Optimization Using an In-Situ Steam Generator in a Rejuvenated Heavy Oil Field." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10003753.

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<p> Steam stimulation is by far the most widely used tertiary oil recovery method. Heavy oil finds its most effective way of production in thermal recovery method. Also with technical effectiveness, steam stimulation brings in cost effectiveness. In-situ steam generation and injection is the most important enhancement to the conventional thermal steam injection technique. Blackbird™ Energy LLC, has developed and a new generation in-situ steam generator with a view to make an almost unproductive heavy oil reservoir in North East Texas to start producing. </p><p> In this research, a rese

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32

Nigus, Tsegaye. "Experimental Investigation of Iron Control Systems Used in Fracking and Well Stimulation Fluids at higher pH." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=1592418.

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<p> This experiment was designed to study iron control systems in fracking and well stimulation jobs at higher pH. Experimental study of iron control at high pH of this kind has not previously been reported in the literature. In addition, almost all of the widely used iron control chemicals today work at lower pH (≤4). </p><p> In this experiment, newly enhanced chemicals, such as EnerFlow 780, SC803, EDTA, Poly Itaconic acid, and TN801 were used and the following new result were found. In the absence of iron control chemicals, iron precipitation occurred at pH of 1.85 and completely pre

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33

McDowell, Bryan Patrick. "Application of a Custom-Built, 400 MHz NMR Probe on Eagle Ford Shale Core Plug Samples, Gonzales and La Salle Counties, Texas." Thesis, Colorado School of Mines, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10790511.

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<p> Nuclear magnetic resonance (NMR) has become an increasingly important tool for estimating porosity, permeability, and fluid characteristics in oil and gas reservoirs since its introduction in the 1950s. While NMR has become common practice in <i>conventional</i> reservoirs, its application is relatively new to <i>unconventional</i> reservoirs such as the Eagle Ford Shale. Porosity and permeability estimates prove difficult in these exceptionally tight rocks and are routinely below the detection limit and/or resolution of low frequency (2 MHz or less) NMR. High frequency (400 MHz) NMR has b

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34

Cozby, Raymond. "Fracture Conductivity and Its Effects on Production Estimation in Shale." Thesis, University of Louisiana at Lafayette, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10243460.

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<p> The shale boom has introduced new technology into the oil and gas industry. It has created a new source of energy and has helped create a surplus in volume. With the recent decrease in oil prices, engineers must be creative and again use technology to make wells more productive. This study is done to observe the role of fracture conductivity in a hydraulically fractured well using a commercially available software. This will allow for engineers to improve fracking techniques. From this, it helps to consider the reliability of simulation software. </p><p> A typical well in the Eagle Ford

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35

Parria, Gavin. "Pressure Analysis during Bull Heading Operations in a Deep-Water Environment Using a Fluid Modeling Simulator and Sensitivity Analysis." Thesis, University of Louisiana at Lafayette, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10243995.

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<p> A bull heading operation is a static non-circulating well control method used to regain integrity of the wellbore. This method is used when there is no drill/tubing string in the wellbore to circulate the kick out of the wellbore. A bull-heading operation requires the use of hydraulic force to overcome the static shut-in pressures of the reservoirs and provide a differential pressure. This differential pressure is required to overcome wellbore and formation friction forces and drive the kill fluid, at a desired flow rate, down the wellbore. </p><p> In tight conventional reservoirs it is

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36

El-Ramahi, Thammer S. "Effects of asphaltenes on subsurface contamination by petroleum liquids." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80010.

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The purpose of the present work was to examine the effects of asphaltenes, amphiphilic molecules found in crude oils, on subsurface contamination by petroleum liquids. Initial experiments were conducted, using naphthalene as a representative target contaminant, to determine the contaminant equilibrium partitioning relationships in an asphaltene-oil-water system.<br>Further experiments were conducted to determine if the presence of asphaltenes in petroleum liquids affected resistance to interphase mass transfer of naphthalene in situ with aging. Results were analyzed using a lumped mass

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Corbett, Patrick W. M. "Petroleum geoengineering : the systematic measurement, interpretation and modelling of geological media for engineering the subsurface for the optimum exploitation of petroleum reservoirs." Thesis, Heriot-Watt University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434937.

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38

Sakanoko, Mariame. "The displacement of oil by aqueous solutions in porous media." Thesis, University of Ottawa (Canada), 2001. http://hdl.handle.net/10393/8960.

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The immiscible displacement of oil by water in a petroleum reservoir has been simulated in the laboratory using a consolidated porous medium constructed out of silica sand particles. Four distinct displacement flow modes were employed, namely horizontal, vertical upward, vertical downward, and transverse. Experiments were carried out by displacing the oil phase (heavy paraffin oil) by the aqueous phase (dyed glycerol solution) at different oil/water viscosity ratios, at different flow rates, and in the presence and absence of connate water (connate water is the name given to the very small amo

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Alla, Bharatsai. "Wellbore Stability Analysis of Sanish Field using 3-D Finite Element Model| Bakken Case Study." Thesis, University of Louisiana at Lafayette, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10682595.

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<p> Rock fracture mechanics theories have been used for more than 50 years in the oil and gas industry. Fracture mechanics is about understanding what will happen to the rocks in the subsurface when subjected to fracture stress. Much of what is used in hydraulic fracturing theory and design was developed by other engineering disciplines many years ago. However, rock formations often cannot be treated as isotropic and homogeneous. These assumptions affect the calculation of in-situ stresses which are important for designing hydraulic fracture and knowing the stability of wellbore. A Geomechanic

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40

Guo, Tianle. "Experimental and theoretical studies of the effects of buoyancy forces on liquid/liquid displacement processes in porous media." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq26121.pdf.

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41

Firincioglu, Tuba. "Bubble point suppression in unconventional liquids rich reservoirs and its impact on oil production." Thesis, Colorado School of Mines, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3558341.

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<p> The average pore size in producing unconventional, liquids-rich reservoirs is estimated to be less than 100 nm. At this nano-pore scale, capillary and surface disjoining force interactions, such as van der Waals, structural, and adsorption, affect the phase behavior that is not considered to be significantly, different than in conventional reservoirs. In this dissertation, a comprehensive discussion of the thermodynamics required to model phase behavior of unconventional, liquids-rich reservoirs is presented. Three oil compositions from different unconventional reservoirs are used to gener

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42

Song, Jinze. "Limit of Horizontal Wellbore in Extended Reach Drilling with Gas." Thesis, University of Louisiana at Lafayette, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1585874.

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<p> The limit of drilling ERD comes from the excessive friction between the drill string and borehole. This study investigates the potential of increasing the limit of horizontal displacement through optimization of drilling fluid and bottom hole assemblies. We conclude that lubricating bottom hole with water can significantly increase the maximum permissible WOB. This effect is more pronounced in drilling tight sands than shales with gas. Cooling the bottom hole with gas expansion after bit nozzles can greatly increase the maximum permissible WOB in drilling formations with geothermal tempera

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Cole, Kolade. "An Experimental Comparison of Three Scale Control Materials." Thesis, University of Louisiana at Lafayette, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1592924.

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<p> Scale control in oilfield operations is the intervention technique deployed to remove the assemblage of solid deposits from the surface of oil and gas well tubular and associated equipment. Common mineral scales that plague production operations are Barium Sulfate, Strontium Sulfate, Calcium Carbonate, and Iron Sulfide. Some of these scales can be dissolved with acid while others cannot. Barium Sulfate which is common at perforations and downstream of chokes is notorious for its resistance to chemical treatment because of its low acid solubility.</p><p> This study investigates the effect

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Gong, Yin. "An Experimental Investigation of Pressure-dependent and Time-dependent Fracture Aperture and Permeability in Barnett Shale." Thesis, University of Louisiana at Lafayette, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1553880.

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<p>U.S. domestic shale-gas production is economic owing to the new completion practice of horizontal wells and multiple hydraulic fractures. The performance of these fractures is improved through the placement of proppant. The change in the stress can affect fracture conductivity considerably. The objective of this study is to experimentally determine the impact of rock stress and time on aperture and permeability of hydraulic fractures in shale gas reservoirs. </p><p> Seven experiments were conducted to measure pressure and time dependent closure and permeability of hydraulic fractures crea

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Li, Ben. "A Preliminary Assessment of Leakage Possibility of CO2 Sequestration Wells in Two Gulf Coast Fields." Thesis, University of Louisiana at Lafayette, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1557563.

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<p> Analytical models were derived in this work to predict the Maximum Permissible Pressure (MaxPP) and Minimum Permissible Pressure (MinPP) in CO<sub>2 </sub>sequestration and other fluid injection wells. The outer radius of the cement sheath should be estimated on the basis of cement placement efficiency measured by the CBL. </p><p> The West Hastings Oil Field and Oyster Bayou Oil Field in Gulf of Mexico region were analyzed to identify the potential leakage of the current CO<sub> 2 </sub> injection wells using the analytical models. Potential problems for the current wells were identified

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Li, Jia. "Growth Prediction of New Fractures in the Shadows of Existing Hydraulic Fractures in Shale Gas Formations." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10002470.

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<p> Natural gas and oil exploration and production from shale formations have gained a great momentum in many regions in the past five years. Producing hydrocarbons from shale is challenging because of low productivity of wells. Optimal design of transverse fractures is a key to achieving successful well completion and field economics. The minimum fracture spacing and the fracture propagation trajectory are the determinant for the successful transverse fracture optimization. Various states of anisotropic stress have been applied to the simulated models with assigning criteria for fracture init

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Adeoye, Adedapo B. "Improving the Viscoelastic Properties of Cement for Oil and Gas Well Cementing Operations." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10002480.

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<p> The importance of cement integrity in the downhole well cannot be over looked. Cement designed for a particular well may not work for another well. As a result, there is a need to design well cement based on appropriate well conditions in order to achieve good integrity during the life time of the well. This research focused on micro-annulus and crack problems associated with downhole well cements. Waste tires have contributed to environmental problems. </p><p> Waste tires can be crushed into small particles and used for construction purposes. This is seen as a promising avenue to get ri

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Li, Hui. "An Experimental Investigation of Geometric Effects of Core Samples on Berea Sandstone Geo-mechanical Behaviors." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10163269.

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<p> Rock geo-mechanical properties are important in petroleum engineering. The determination of reservoir’s mechanical properties is critical to reduce drilling risk and maximizing well and reservoir productivity. Rock geo-mechanical properties vary not only with rock types, but also with measurement method, samples geometry (sample size and length to diameter ratio), and other factors. Because rocks are heterogeneous media, sample geometry can significantly affect measured rock mechanical properties, including unconfined and confined compressive strength, Young’s Modulus, and Pois

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Cai, Xiao. "An Analytical Method for Predicting Wellbore Temperature Profile During Drilling Gas Hydrates Reservoirs." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10163276.

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<p> Production of natural gas from unconventional gas-hydrate reservoirs faces kinds of challenges and uncertainties. One of the main and most common problems in gas-hydrates drilling is the dissociated gas from gas hydrates with decrease of pressure, increase of temperature, or combination of them. A reliable method that can be applied to predict the temperature profile of fluid during circulating in the drilling pipe and the annulus is needed. An analytical model was developed in this study for predicting temperature profiles in drilling gas-hydrate deposits. A case study is provided and ind

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Dong, Kanjicai. "Enhanced Oil Recovery Investigation Using Algae Polymers." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10163342.

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<p> After primary and secondary recovery there is still oil remaining in the reservoir, so tertiary recovery is introduced. This is also known as EOR. Enhanced oil recovery has been widely used with different types of polymers. Algae polymer is a new development with its own advantages and limitations. In order to discover the economic potential of algae polymer, this paper focuses on the recovery factor of algae polymer and compares it with other published results.</p>

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