Global ETD Search
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 17 of 17 for “"Tight reservoirs"”.
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Simultaneous Multiple Plane to Plane Waterflooding in Fractured Tight Reservoirs
Waterflooding is common in conventional reservoirs, but efforts to apply waterflooding to unconventional tight oil formations have not met much success. The purpose of this research is to investigate the effectiveness of a novel 3-well pattern using horizontal wells (one injector and two producers, …
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Hydraulic Fracturing and Flow-back Simulation in Unconventional Tight Reservoirs
… used technology in stimulating unconventional tight reservoirs in Western Canadian Sedimentary Basin (WCSB). It is important to understand hydraulic fracture propagation mechanism, effects of their properties and controlling factors affecting flow-back recovery. In this thesis, based on tight …
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Coupled geomechanics and transient multiphase flow at fracture-matrix interface in tight reservoirs.
Fractured hydrocarbon reservoirs play a significant role in the world economy and energy markets. Fluid injection (normally water) forces the hydrocarbons out of the reservoirs. Geomechanics, externally applied stress on the rock, play a significant role in the oil recovery from fractured …
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Application of artificial intelligence techniques to well spacing optimization in fractured tight reservoirs
… well spacing in unconventional fractured tight reservoirs. To achieve this objective, a coupled artificial neural network (ANN) based proxy and evolutionary algorithm is proposed and applied to Avon Hill field in west central Saskatchewan which is a tight fractured oil field. Multilayer …
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Characteristics of Tight Reservoirs in the Oligocene Huagang Formation, Xihu Sag, East China Sea Basin
The Xihu Sag in the East China Sea Basin can be divided into five structural belts. From west to east, they are western slope belt, western sub-sag, central inversion tectonic belt, eastern sub-sag and eastern fault and fold belt. The petrographical, diagenetic and petrophysical properties of the …
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Modeling of Methane and Carbon Dioxide Sorption Capacity in Tight Reservoirs Using Machine Learning (ML) Techniques
This work examines different machine learning methods, from shallow to deep learning. It investigates their capability to model 489 sets of experiments with 3806 data points where methane (CH4) and/or carbon dioxide (CO2) sorption capacity of shale and coal have been measured at different reservoir …
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Comparison Study of Liquid CO2 and Water as a Fracturing Fluid for Improved Gas Production in Tight Reservoirs
… Canadian Sedimentary Basin’s unconventional tight reservoirs are enjoying technology development like horizontal drilling and hydraulic fracturing. Hydraulic fracturing substantially improves production however it is crucial to understand how fracture growth and production comparison when …
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Production Analysis and Enhancement in The Unconventional Tight Formations
… using multistage hydraulic fracturing for tight/shale oil and gas development. Analysis of the existing wells’ performance and development of production enhancement techniques are of critical interest for the improvement of the development efficiency in these formations. Production …
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Correlstion between the volume of slurry and the volume of fracture in Barnett Shale
… fracture networks can be generated in many shale reservoirs and create multiple of plan complex structure. The ultra-low permeability in Barnett shale requires hydraulic fracturing to generate wellbore contact with the reservoir in order to achieve economic gas rates by the concept of a single …
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Integration of Nano CT and SEM in the Characterization of Marcellus Shale
… complexities surrounding the geology of Shale reservoirs and its characterization. The overall aim of this study is to understand and characterise the Marcellus shale with the view of enhancing our knowledge of the geometry and topology of the tight shale rock. This study presents a simplified …
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Rate-Transient Analysis of Tight Oil and Gas Reservoirs
… technologies applied to low-permeability (tight) oil and gas reservoirs in recent decades, resulting in commercial production. For each stage in a MFHW, the formation is fractured by injecting water and sand at high pressure. The resulting hydraulic fracture system enhances production from …
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Depositional Facies Analysis of the Cotton Valley Group Sandstones of the Blackburn Field, Northern Louisiana using Well Logs and Cores; Implications for Carbon Sequestration
<p> The Cotton Valley Group (CVG) consists of tight sandstones with heterogeneous reservoir properties due to variations in depositional environments and diagenesis, spanning across eastern Texas through the Florida panhandle. It has served as a hydrocarbon target since the 1940s, and with recent …
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Utilizing Oil-Soluble Tracers to Evaluate the Production Profile in Multistage Fractured Horizontal Wells
… the key to effectively recover hydrocarbon from tight reservoirs. Improving the hydrocarbon recovery requires detailed production information of each hydraulic fracture. Chemical watersoluble tracers are often used to calculate the production profile from multistage fracturing through tracer flow …
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CO2 Minimum Miscibility Pressure and Recovery Mechanisms in Heterogeneous Low Permeability Reservoirs
… oil and gas resources, such as shale gas and tight oil, has grown quickly in 21th century and contributed to the North America oil and gas production. Although the new enhancing oil recover (EOR) technologies and strong demand spike the production of unconventional resources, there are still …
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Oil Potential of Middle Cretaceous Tight Carbonate in Mexico
This thesis investigates a tight overpressured Cretaceous carbonate formation in Field A of Mexico. The Cretaceous carbonate was penetrated by well A1 and tested oil successfully during an open-hole test covering interval 5356 to 5515 m (MD) that produced oil of 33 degrees API. Initial pressure was …
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CO2 Sequestration through Mineral Carbonation
… This thesis explores the use of unconventional reservoirs such as shales and siltstones as a target for mineral trapping of CO2. Although some studies of CO2 storage in shales and low-permeability (tight) reservoirs exist, most previous studies of shales related to CO2 storage have primarily …
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Study of Phase Behaviours of Reservoir Fluids with Consideration of Adsorption and Capillary Pressure
… effect of porous media cannot be neglected. In tight reservoirs, the fluid molecules keep close to the surface of the porous media and certain interactions exist between the fluids and reservoir media. Due to the fine particles, small pore radii, complicated pore structures, and large specific …