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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 74 for “"Engineering--Petroleum"”.
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Wellbore Strengthening by Means of Nanoparticle-Based Drilling Fluids
Wellbore strengthening is the mechanism of increasing the fracture pressure of the rock at depth. Application of wellbore strengthening in the drilling industry enable safe drilling by preventing mud losses, drilling in narrow mud windows, accessing reserves in depleted reservoirs, and also has the …
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Experimental Simualtion Of Hot Fluid Injection Process for In-reservoir Upgrading
Nowadays, the industry recovers bitumen by injecting heat via steam to reduce bitumen’s viscosity in the reservoir so it flows easily to the surface. A high heat capacity fluid could eventually replace steam in this role. Vacuum Residue (VR) is the heaviest, most viscous and richest in contaminants …
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Effect of Temperature on Performance of Vapex Process for Heavy Oil
Incorporating some heat injection along with the solvent injection appears to be the most viable option for improving the oil drainage rate of Vapex (Vapor Extraction) in extra-heavy oil formations. This study was aimed at quantifying the upper limit of oil rates achievable with heated solvent …
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Low Temperature Oxidation of Heavy Crude Oil: Experimental Study and Reaction Modeling
In situ combustion (ISC) or air injection is one of the oldest thermal methods for enhanced oil recovery. In this technique, air or oxygen-enriched air is injected into the formation. A portion of the oil combusts in situ and provides heat, water, and product gases. Within the oil formation, three …
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Downhole Weight on Bit Prediction with Analytical Model and Finite Element Method
Horizontal drilling is an innovative technology applied for exploiting unconventional resources in North-America and around the world. To acquire better drilling performance, weight on bit (WOB) needs to be accurate and monitored. However, the weight on bit recorded on the surface panel is most …
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Experimental Investigation of In Situ Combustion for Heavy Oils at Low Air Flux
In order to conduct a successful in situ combustion oil recovery project, sustained propagation of the combustion front within the reservoirs is a must. Sufficient air must be supplied to maintain the propagating combustion front in the carbon oxide forming mode otherwise unfavorable low …
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Laboratory Investigation of Polymer-flooding, ASP-flooding, and Foam-flooding in Heavy Oil System
It is widely accepted that thermal methods have become the most effective techniques for Alberta heavy oil reservoirs. However, thermal techniques cannot be applied to many reservoirs, such as deep reservoir or reservoir with thin pay because heat losses will be too severe. Water flooding is an …
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On Stability in Gravity Drainage Oil Sand Recovery Process
The controlling feature of steam-based recovery processes is heat transfer from the steam chamber to the formation – the greater the heat flux, the larger the oil volume heated and the higher the oil drainage rate. Stability phenomena in SAGD occur both at the edge of the chamber and at the liquid …
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Enhanced Cyclic Solvent Process (ECSP) for Thin Heavy Oil Reservoirs
Vapour extraction (VAPEX) process has a low production rate and is not suitable for thin reservoirs due to lack of efficient gravity drainage. Cyclic solvent process (CSP) has been proposed to improve the production rate of solvent processes. A major problem of CSP is that during production, the …
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Screening Geostatistical Realizations for SAGD Reservoir Simulation
Economic feasibility of bitumen recovery using the steam-assisted gravity drainage (SAGD) process strongly depends on the heterogeneities that exist in the petrophysical properties of the reservoir. Petrophysical properties and geological features are normally estimated based on known well data and …
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Comparison of CSS and SAGD in Cold Lake
Several methods are being used to recover buried heavy oil or bitumen deposits within oil-sands reservoirs. Cyclic Steam Stimulation (CSS) has been a commercial recovery process since the mid 1980’s in the Cold Lake area in northeast Alberta. Also, Several Steam-Assisted Gravity Drainage (SAGD) …
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Shear Dispersion in Double-Porosity Systems
In this study, shear dispersion in double-porosity systems has been investigated. The major focus of this study is determination of dispersion coefficients through development of mathematical models for solute transport in a variety of coupled double-porosity systems by imposing an accurate …
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Parallel Black Oil Solvers on GPU
Reservoir simulation for a full field heterogeneous model with millions of grid blocks demands significant computational time; therefore, improving the computational efficiency becomes crucial in designing a reservoir simulator. Graphics Processing Unit (GPU), a new high-profile parallel processor …
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Transient Shape Factors for Thermal Flow Simulation in Fractured Reservoirs
The simulation of naturally fractured reservoirs (NFRs) is an extremely daunting and challenging task. The most important and difficult aspect of modeling a naturally fractured reservoir is the accurate estimation of the fluid exchange between matrix and surrounded fractures, which is modeled via a …
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Modeling Storage and Flow of Fluids in Shale Reservoirs
Recent development of shale gas reservoirs has led to a revolution in the global energy market. The shale gas industry has expanded rapidly through the application of new drilling and completion technologies, particularly horizontal wells completed in multiple hydraulic fracture stages. While these …
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Experimental and Simulation Study of Relative Permeabilities in Heavy Oil/Water/Gas Systems
An experimental study was conducted to investigate the relative permeability behaviour of a typical Canadian bitumen, water and gas. Series of isothermal core flood experiments were conducted on an unconsolidated core composed of cleaned Athabasca sand matrix and relative permeabilities of the …
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Mechanistic Modeling, Design, and Optimization of Low Salinity Waterflooding
Low Salinity Waterflooding (LSW) is an emerging attractive enhanced oil recovery (EOR) method because of its oil recovery performance and relatively simple, environmentally friendly implementation, when compared with conventional high salinity waterflooding and EOR approaches. Most studies on the …
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Controlling Factors on Condensate Production from the Eagle Ford Shale
This thesis examines the impact on recovery from shale condensate reservoirs of key properties such as porosity and permeability as well as other controlling factors that include the horizontal wells length, liquid drop out and liquid loading around the wellbore. It also addresses the possibility …
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Improvement of Carbon Dioxide EOR in Water-Wet Reservoirs by Using Active Carbonated Water
CO2 injection for enhanced oil recovery has been widely and successfully used in many oil fields. The drawbacks of conventional CO2 injection are high mobility and gravity segregation, which lead to low sweep efficiency in the reservoir. Particularly in strongly water-wet reservoirs, a significant …
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Micro-Scale Simulation of Evaporation, Condensation and Transport in Porous Media
Sub-pore scale modeling of flow in porous media is gaining momentum. The concept of Digital Core Analysis deals with measurements of virtual core and the purpose of such modeling is to replace conventional and special core analysis when the latter are not feasible. One of the challenging concepts …
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