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 20 of 20 for “"unconventional reservoir"”.
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New technologies for unconventional reservoir characterization: Seismic inversion, focal-time estimation, and signal processing to improve reservoir imaging
… resource evaluation and geohazard assessments. Unconventional resource extraction, such as Alberta’s Duvernay play, requires a multifaceted approach to optimize reservoir development and to mitigate geohazards such as induced seismicity. Frequently, hydraulic fracture stimulation programs do not …
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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 …
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DESCRIPTION OF THE BAKKEN FORMATION’S ROCK PROPERTIES OF THE WILLISTON BASIN, NORTH DAKOTA
… performance is very important in this kind of unconventional reservoir. The lateral changes in rock properties are also important to determine well locations. Via AVO analysis and inversion, rock properties were observed in the unconventional reservoir. The Bakken Formation is one of the main …
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Evaluation of diagnostic fracture injection test (DFIT) and rate transient analysis (RTA) in Hereford field, northern DJ Basin
Since the inception of unconventional reservoir development in the United States, hydraulic fracturing and acidizing have become the primary techniques for stimulating these ultra-low permeability reservoirs. Furthermore, unlike conventional reservoirs, unconventional reservoirs require a much …
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Analytical Modeling of Multi-Fractured Horizontal Wells in Heterogeneous Unconventional Reservoirs
… horizontal wells (MFHW) generally neglect reservoir 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 …
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Subsurface Sequence Stratigraphy and Reservoir Characterization of the Mississippian Limestone (Kinderhookian to Meramecian), South Central Kansas and North Central Oklahoma
<p>Both conventional and unconventional Mississippian reservoirs in the mid-continent are largely comprised of chert-rich carbonates of Osagean and Meramecan age. The conventional reservoir target is the Mississippian "chat," a high porosity, chert residuum interval found immediately beneath the …
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Mechanical Stratigraphy of the Mississippian in Osage County, Oklahoma
… Kansas has recently developed as a world class unconventional reservoir with wells producing up to 800 bbl/day. The Mississippian is composed of multiple distinct lithologic zones including limestone, hard chert, and soft tripolitic chert. These zones are difficult to discern with traditional …
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Scanning Methods as Monitoring, Verification, and Accounting tools for CO₂ Sequestration in Unconventional Gas Reservoirs
Unconventional gas reservoirs in carbon dioxide sequestration activities is a relatively new and unexplored concept currently undergoing pilot scale testing. Sequestration has the potential for enhancing gas recovery while mitigating carbon dioxide to long term storage structures. Due to the …
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Production Analysis in Tight/Shale Reservoirs Via Machine Learning Approaches
The development of unconventional tight/shale gas reservoirs has undergone a revolutionary transformation, primarily fueled by advancements in horizontal drilling and multi-stage hydraulic fracturing technologies. These innovations have enabled the economical extraction of hydrocarbons from …
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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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Microseismic guided wave eigenfunction theory with application to event depth classification in the Eagle Ford shale
… for microseismic event depth constraint to an unconventional reservoir is developed. Eigenfunctions, historically used in the analysis of Rayleigh and Love surface waves, allow rapid calculation of response functions that are linearly-correlated with guided wave displacements as a function of …
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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 …
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The influence of micro-porosity on drainage relative permeability using digital core analysis
… for image-based computation of permeability in unconventional reservoir rocks where multiple length scales coexist.
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Reservoir Characterization of the Utica Shale Play Using Well Log Data in Columbiana, Ohio
… parts of the basin. In addition to being an unconventional reservoir, the Utica shale, an informal unit in Ohio where the main fairway is located, is a known source rock for much of the Paleozoic strata across the Appalachian Basin, including multiple lower Paleozoic sandstone and carbonate …
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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 …
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Geomechanical Reservoir Model Calibration and Uncertainty Assessment from Microseismic Data
… stimulation of low permeability rocks in unconventional reservoirs has been observed to trigger microearthquakes (MEQs). Triggering of the MEQ events has been linked to the pore pressure, temperature, and in-situ stress variations which result in crack initiation. The resulting clouds of …
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Utilization of Carbonated Water Injection (CWI) as a Means of Improved Oil Recovery in Light Oil Systems: Pore-Scale Mechanisms and Recovery Evaluation
… was incorporated into the compositional and unconventional reservoir simulator, CMG GEM, in order to reproduce the CWI flooding tests conducted in this study. The simulation results showed that the CWI process can be simulated using the commercial software, CMG, by modifying the fluid model …
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Cyclostratigraphy And Sedimentation Of The Cenomanian-Turonian Tuscaloosa Marine Shale
<p>A cyclostratigraphic and geochemical analysis was conducted on the basal high resistivity zone of the Tuscaloosa Marine Shale to determine if orbital forcing is apparent in mineralogical data suites. Geochemical data suites obtained via x-ray diffraction from five cored wells located near the …
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Molecular Dynamics Study of Nano-confinement Effect on Hydrocarbons Fluid Phase Behavior and Composition in Organic Shale
The depletion of conventional oil reservoirs forced companies and consequently researchers to pursue alternatives such as resources that in the past were considered not economically viable, in consequence of the high depth, low porosity and permeability of the play zone. The exploration challenges …