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.
Results
Showing 1 to 20 of 59 for “"unconventional reservoirs"”.
-
Mechanistic and probabilistic rate-time analysis of unconventional reservoirs
… further understand the underlaying mechanisms of unconventional production. The second, introduces a probability approach that attempts to address the uncertainty in the production forecasts. The first part of this work presents mechanistic modeling of unconventional resources to estimate the …
-
Uncertainty quantification of unconventional reservoirs using assisted history matching methods
A hallmark of unconventional reservoirs is characterization uncertainty. Assisted History Matching (AHM) methods provide attractive means for uncertainty quantification (UQ), because they yield an ensemble of qualifying models instead of a single candidate. Here we integrate embedded discrete …
-
Analytical Modeling of Multi-Fractured Horizontal Wells in Heterogeneous Unconventional Reservoirs
… heterogeneity, typical seepage characters of unconventional reservoir, partially penetrating fracture and various fracture damage mechanisms. In this thesis, three linear flow models have been developed to facilitate pressure and rate behavior analysis of shale, tight sand and unconventional …
-
Modeling CO2 Sequestration and Enhanced Gas Recovery in Complex Unconventional Reservoirs
Geologic sequestration of CO2 into unmineable coal seams is proposed as a way to mitigate the greenhouse gas effect and potentially contribute to economic prosperity through enhanced methane recovery. In 2009, the Virginia Center for Coal and Energy Research (VCCER) injected 907 tonnes of CO2 into …
-
Development of Scaling Crieteria for Waterflooding and Immiscible CO2 Flooding in Unconventional Reservoirs
… increasingly interests in exploiting the unconventional oil resources (e.g., tight oil and heavy oil). Tight oil resources in Canada are mainly located in Cardium and Viking pools in Alberta, Bakken formation in Saskatchewan, and Western Canada Shale plays, respectively. Also, tremendous …
-
Impact of Hydraulic Fracture Conductivity Modeling on Well Performance and Development in Unconventional Reservoirs
Reservoir simulation of unconventional resources has become increasingly important due to advancing technologies and the growing demand for efficient hydrocarbon recovery. These reservoirs pose distinct challenges related to characterization, multiphase flow behavior, and production forecasting. To …
-
Anisotropic analysis of unconventional reservoirs using rock physics model: Eagle Ford shale case study
… the oil and gas industry with the new advent of unconventional technology in recent years. Previous studies have shown that Eagle Ford shale is a world-class source rock. Rock physics models help characterize the elastic properties of conventional and unconventional reservoirs. In this thesis, I …
-
Enhanced completion evaluations in unconventional reservoirs: new applications of fiber optic sensing and machine learning
… potential to enhance completion evaluations in unconventional reservoirs. Therefore, we developed new methods using these technologies and applied them using data from the Chalk Bluff field to address the goals mentioned previously. We present a novel use of tube waves exited by perforation (or …
-
Geo-chemo-mechanical modeling of sedimentary rocks: application to unconventional reservoirs and geological CO2 sequestration
… application such as hydraulic fracturing in unconventional reservoirs or geological CO2 sequestration in deep saline formations.
-
Numerical simulation of fluid flow, proppant transport and fracture propagation in hydraulic fractures for unconventional reservoirs.
… and suspension in thin fracturing fluid used in unconventional reservoirs are considerably different from those of fracturing fluids in conventional reservoirs, due to the very low viscosity of fracturing fluids used in the unconventional reservoirs, poor ability to suspend proppants and hence …
-
Investigation of Asphaltene Instability Under Gas Injection in Unconventional Reservoirs and its Impact on Oil Recovery Performance
<p>"Unconventional reservoirs, such as shale gas and tight oil formations, have become an important source of energy in recent years. However, these reservoirs often contain high levels of asphaltenes, which can lead to deposition and blockages in production wells and reduce the flow of …
-
Effect of viscosity-compressibility product variation on the analysis of fractured well performances in tight unconventional reservoirs
… of Science degree has been conducted under the Unconventional Reservoir Engineering Project (UREP) at the Marathon Center of Excellence for Reservoir Studies (MCERS) in the Petroleum Engineering Department of Colorado School of Mines. The main objective of the research is to investigate the …
-
Simulation and optimisation of hydraulic fracturing and flowback in unconventional reservoirs: A case study in the Cooper Basin, South Australia
… of hydraulic fracturing and flowback design in unconventional reservoirs using a case study from the Cooper Basin, South Australia. The Cooper Basin has a very large raw recoverable gas from unconventional gas resources estimated to be up to 187 trillion cubic feet. These resources are locked …
-
Inclusion of Fracture Skin in Duong’s Model of Rate-Decline Analysis for Fracture-Dominated Shale Reservoirs
… decisions in face of large uncertainties. Unconventional oil and gas production has followed an accelerated growth trajectory in the US oil and gas industry. Unconventional reservoirs vary significantly in their reservoir characteristics and production methodologies when compared to …
-
Adsorption-Mediated Fluid Transport at the Nanoscale
Injecting CO2 into unconventional reservoirs to enhance oil recovery has been widely studied due to its potential to improve the profitability of these reservoirs. CO2 Huff-n-Puff is emerging as a promising method, but exploiting its full potential is challenging due to difficulties in optimizing …
-
Experimental and computational analysis of oil field operations
… We examine both the subsurface component of unconventional reservoirs to improve fluid flow, and also the surface component of oilfield operations. Regarding the latter, we propose to optimize operations by reducing non-productive time and minimizing infrastructure and operational costs …
-
A novel diagnostic fracture injection test workflow considering natural fractures
… fracture injection test (DFIT) are used in unconventional reservoirs to determine reservoir characteristics for future fracture design and production. DFIT consists of creating a minifrac by pumping small amounts of water and monitoring the pressure response. The presence of natural …
-
Pressure- and rate-transient model for interfering horizontal wells
… enhance hydrocarbon production from ultra-tight unconventional reservoirs by increasing surface area for fluid flow. Hydraulic fracturing creates or rejuvenates the existing network of fractures surrounding the hydraulic fractures and horizontal well and forms a stimulates reservoir volume (SRV) …
-
Methods and systems for ballooned hydraulic fractures and complex toe-to-heel flooding
Hydrocarbon recovery from both conventional and unconventional reservoirs is very low. The hydrocarbon recovery factor for conventional reservoirs is typically between 5% and 15% after primary recovery and between 35% and 45% after secondary recovery. The hydrocarbon recovery factor for organic …
-
Using data analytics and laboratory experiments to advance the understanding of reservoir rock properties
Conventional and unconventional reservoirs are both critical in oilfield developments. After waterflooding treatments over decades, the petrophysical properties of a conventional reservoir may change in many aspects. It is crucial to identify the variations of these petrophysical properties after …
Page 1 of 3