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 35 for “"Reservoir rock"”.
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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 …
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Geochemical and geomechanical alteration of sandstone reservoir rock and shale caprock under representative geological carbon sequestration conditions
… to a location where it is injected into a rock formation in the subsurface for permanent storage. The dissolution of CO₂ into reservoir brine forms carbonic acid which can react with pH-sensitive minerals, affecting the geomechanical properties of the formation. This dissertation explores …
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Integrated geological and petrophysical investigation on carbonate rocks of the middle early to late early Canyon high frequency sequence in the Northern Platform area of the SACROC Unit
… unit is an isolated carbonate platform style of reservoir that typifies a peak icehouse system. Icehouse carbonate platforms are one of the least well understood and documented carbonate reservoir styles due to the reservoir heterogeneities they embody. The current study is an attempt to …
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An improved approach for quantifying the impact of geological uncertainty and modelling decisions on static and dynamic reservoir models - a case study from a giant fractured carbonate reservoir
Carbonate reservoirs hold more than 60% of the world's oil and 40% of the world's gas reserves. These reservoirs are characterised by geological heterogeneity, petrophysical complexity, presence of naturally fractures, and mixed wettability, all of which contribute to significant uncertainty in …
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Permeability prediction from well log data using multiple regression analysis
An accurate reservoir description is very important in reservoir evaluation, and permeability prediction is the key for a successful characterization. However, despite its importance, obtaining permeability values through the reservoir is not a trivial task. It is costly and time-consuming.;Many …
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Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models.
… the failure effects of oilfield chemicals on the reservoir rock, which is exposed to significant amounts of these chemicals. Oilfield chemicals have many applications in the oil and gas industry, and have been used extensively as inhibitor, surfactant, biocide, stabilizer, depressant, retarder, …
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Evaluation of the Newburg Sandstone of the Appalachian Basin as a CO2 Geologic Storage Resource
… primarily involves natural gas production from reservoir rock with welldeveloped porosity and permeability. High initial pressures encountered in early wells in the Newburg indicate that the overlying Silurian Salina Formation provides a competent seal. Due to the large number of CO2 point …
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Surfactants and enhanced oil recovery
… range (ii) exhibit low adsorption onto reservoir rock (iii) interfacial tension as low as 10-2mNm-1 have been subsequently optimised. Core flooding tests carried out under reservoir conditions produced an additional 20% of the original-oil-in-place.
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Reservoir Delineation Using Bandwidth Extension and Phase Decomposition
Sandstone reservoir units prevalent in an upper slope Niger Delta oil field are commonly below seismic temporal resolution. Although conventional seismic amplitude and amplitude-variation-with-offset are good indicators of oil-filled reservoir rock in this area, they do not necessarily show the …
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Investigating Complex Organic Species on Mineral Surfaces
Characterisation of outcrop and reservoir rock by a wide range of analytical techniques is presented, with the aim to understand mineral-organic interfaces. It is demonstrated that despite silicate rock being dominated by silicates, the exposed surfaces of the rock is not reflected in the bulk …
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Application of statistical methods for "flow unit" identification and characterization of a reservoir using well log and core data
… stratigraphically continuous interval of similar reservoir process speed that maintains the geologic framework and characteristics of rock types. Permeability and porosity of the reservoir rock has always been considered as two of the most important parameters to identify flow unit for formation …
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The Application of Single porosity Model to Predict the Performance of the Low Permeability Naturally Fractured Formations
… currently an expensive endeavor due to the tight reservoir rock with nano-darcy permeability. New technology in the form of horizontal drilling and hydraulic fracturing (fracturing through the use of high pressure liquids) has overcome the flow capacity problem of shale to achieve economic …
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Analysis of the Upper Cotton Valley Group in the Northeastern Mississippi Interior Salt Basin
… decades because of its high potential as a reservoir rock. This study focuses on the Shuler Formation in the Upper Cotton Valley, which consists of an upper Dorcheat Member, and a lower Shongaloo Member. The boundary between these units correspond to a transgressive-regressive sequence …
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Acoustic monitoring of hydraulic stimulation in granites
… fracture stimulation of low permeability EGS reservoir rock is widely employed to develop this resource and is generally required to make unconventional resources an economically viable resource. Significant challenges for EGS technology include poor connectivity between injection and …
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Characterization of Filter Cake Buildup and Cleanup under Dynamic Fluid Loss Conditions
… stimulation method in tight gas and shale gas reservoirs that uses a viscous fluid to fracture the reservoir rock and uniformly transport proppant to create a highly conductive path that is kept open by the proppant after fracturing. This method is used to improve the productivity of the …
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Evaluation of alkali flooding combined with intermittent flow in carbonate reservoir
The majority of carbonate reservoir is oil-wet, which is an unfavorable condition for oil production. Generally, the total oil recovery after both primary and secondary recovery in an oil-wet reservoir is low. The amount of producible oil by enhanced oil recovery techniques is still large. Alkali …
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Synthetic geomechanical logs and distributions for marcellus shale
… used in this study is applicable to other shale reservoirs.;Successful recovery of hydrocarbons from the reservoirs, notably shale, is attributed to realizing the key fundamentals of reservoir rock properties. Having adequate and sufficient information regarding the variable lithology and …
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Characteristics of Tight Reservoirs in the Oligocene Huagang Formation, Xihu Sag, East China Sea Basin
… facies of delta and lacustrine facies. The main rock types are feldspathic litharenite and lithic subarkose with low compositional and texture maturity. Based on the scanning electronic microscopy (SEM) and thin section observations, it was found that the reservoir rock went through moderate …
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Thermo-analytical and spectroscopic characterisation of pore lining minerals in reservoir rocks.
… of sandstone and carbonate based hydrocarbon reservoir rocks. Particular emphasis has been directed towards determining the surface mineralogy in order to understand the flow of fluids through rocks.The first method employs Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) …
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Investigation of changes in permeability due to poro-thermo-elastic effects in enhanced geothermal reservoirs
… of cold water over a longer term in geothermal reservoirs is presented. A hybrid of tectonic simulation and stochastic analysis of field data is utilized to generate the subsurface fracture map of three formations. For this purpose, a geological structure is reconstructed according to its past …
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