Download or read book Analysis of Fault Seal Potential for Knox Reservoirs in the Southern Illinois Basin written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The presence of known faults near potential geologic CO2 sequestration sites significantly raises the uncertainty of having a sufficient seal to prevent leakage along the fault plane from the intended reservoir. In regions where relocating a large sequestration project a considerable distance away from any known faults is impractical, a detailed analysis of the sealing potential of any faults within the projected future injection plume must be performed. In order to estimate the sealing potential of faults within the Late Cambrian-Early Ordovician Knox Supergroup in the Illinois Basin, two well-based cross sections were produced across two different regional fault systems (Rough Creek Fault Zone in Kentucky, and the unnamed core fault of the LaSalle Anticlinorium in Illinois) to calculate subsurface stratigraphic juxtapositions across each fault zone. Using this stratigraphic and lithologic data, three different algorithms were used to calculate the sealing potential of a theoretical Knox reservoir at each section location. These results indicate a high probability for sealing within the Rough Creek Fault Zone, but a much lower probability for a continuous seal within the LaSalle Anticlinorium.
Download or read book Integrated Fault Seal Analysis written by S. Ogilvie and published by Geological Society of London. This book was released on 2020-08-03 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Faults commonly trap fluids such as hydrocarbons and water and therefore are of economic significance. During hydrocarbon field development, smaller faults can provide baffles and/or conduits to flow. There are relatively simple, well established workflows to carry out a fault seal analysis for siliciclastic rocks based primarily on clay content. There are, however, outstanding challenges related to other rock types, to calibrating fault seal models (with static and dynamic data) and to handling uncertainty. The variety of studies presented here demonstrate the types of data required and workflows followed in today’s environment in order to understand the uncertainties, risks and upsides associated with fault-related fluid flow. These studies span all parts of the hydrocarbon value chain from exploration to production but are also of relevance for other industries such as radioactive waste and CO2 containment.
Download or read book Fault Seal and Containment Failure Analysis of a Lower Miocene Structure in the San Luis Pass Area Offshore Galveston Island Texas Inner Shelf written by Johnathon Lee Osmond and published by . This book was released on 2016 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Faults that displace siliciclastic reservoirs have been observed to either seal hydrocarbon accumulations in structural traps or serve as conduits for buoyant fluid migration. While many faults located along the Texas Inner Shelf in the Gulf of Mexico do provide adequate lateral seals for the Lower Miocene petroleum system, oil and gas operators targeting the large antiformal structure roughly 7 mi offshore from San Luis Pass have been highly unsuccessful in discovering commercial amounts of methane gas. Images interpreted from 12 mi2 of high-resolution 3-D seismic reflection data (HR3D) has revealed an apparent gas chimney feature directly above the target structure that previously acquired lower-resolution conventional 3-D data failed to identify. Furthermore, the available seismic data show that the 55,000 foot-long normal growth fault displacing the San Luis Pass structure (Fault A) has propagated into the shallow Late Pleistocene (~140 ka) and younger sediment, suggesting recent movement of the hanging wall block has occurred. These three observations call into questions the ability for Fault A to properly seal and contain hydrocarbon accumulations, assuming the structure was sufficiently charged with methane, similarly to the surrounding Lower Miocene structures that have produced. An analysis of fault seal and potential containment failure mechanisms affecting the San Luis Pass structure is conducted here in order to address how hydrocarbons may have escaped into the shallow overburden sediments. 3-D geologic modeling of the Lower Miocene 2 (LM2) reservoir interval and Amph. B Shale top seal against Fault A yields fill-to-spill closure capacities of approximately 686 ft and 992 ft for the footwall and hanging wall closures, respectively. Fault seal membrane limited methane column height estimations are 300 ft and 325 ft from footwall to hanging wall, and were obtained by way of empirically calibrated equations that attempt to account for capillary entry properties of a fault through the estimation of its clay mineral content using the Shale Gouge Ratio (clay volume/fault throw). Although capacity estimations appear to be geologically reasonable in this region, they fail to explain the lack of hydrocarbons in the system, so four potential across-fault migration and leakage scenarios are considered for the purpose of determining pathways from the reservoir interval to the shallow subsurface. Areas where sandstone on sandstone juxtapositions generally pose the greatest risk of across-fault leakage, and 23 individual Lower Miocene 2 and Middle Miocene (MM) sandstone units juxtaposed against Fault A are evaluated. While the ability of Fault A to seal hydrocarbons may be feasible in static conditions, additional mechanisms evaluated using the available data include: top seal membrane leakage, top seal mechanical failure and fault reactivation mechanisms. Top seal thickness ranges between 500 ft and 1,000 ft in the study area, and analogous Lower Miocene mudstones are shown to retain methane columns of about 936 ft. Data limitations significantly reduce the ability to thoroughly investigate top seal mechanical failure and fault reactivation at this time, however, apparent vertical displacement measurements from overlapping seismic datasets suggest that movement along Fault A continued since it originally formed, and that two pulses of increased throw rate may have occurred in Early Miocene, and the Pleistocene. The apparent Pleistocene throw rates range from 0.010 mm/year to 0.125 mm/year, and are significant because the Early Miocene pulse occurred before the formation of the Amph. B top seal. Thus, it is interpreted that fault reactivation may represent the primary containment failure mechanism for the San Luis Pass structure, and that the increased apparent throw rate in the Pleistocene may symbolize a period of hydrocarbon leakage from the LM2 reservoir interval.
Download or read book Faulting Fault Sealing and Fluid Flow in Hydrocarbon Reservoirs written by G. Jones and published by Geological Society Publishing House. This book was released on 1998 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation "Compared with many other areas of the petroleum geosciences, studies of the structural controls on fluid flow in hydrocarbon reservoirs are in their infancy. As hydrocarbon reserves have become depleted and the oil industry has become more competitive, the need to cut costs by optimizing production and predicting the occurrence of subtle traps has highlighted the importance of information on the way in which faults and fractures affect fluid flow. Structural geologists are now having to provide answers to questions such as: Are hydrocarbons likely to have migrated into (or out of) the trap? What is the likely height of hydrocarbons that a fault can support? Is it likely that compartments which have not been produced exist within a field and will therefore require further drilling?" "This volume aims to find answers to these questions."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved.
Download or read book Annual Report written by Kentucky Geological Survey and published by . This book was released on 2009 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fault Seal Analysis in Jasmine Field Norther Part of Pattani Basin Gulf of Thailand written by Chutimon Pakdeesirote and published by . This book was released on 2015 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Jasmine Field is located in the Northern part of Pattani Basin, Gulf of Thailand. The objective of this study is to analyze and evaluate the possibility of fault sealing in the Jasmine A area by using well data and seismic interpretation from selected reservoir sand horizons, within a total interval thickness of approximately 1680 ft (512 m). These data were used for constructing depth structure maps, net-sand (isopach) maps, the model cross section of Allan diagram and Shale Gouge Ratio (SGR) calculation. In addition, these data were also used to investigate potential of fault sealing. From Allan diagram, the two analyzed faults in Jasmine A area have an effective capacity in sealing hydrocarbon and can be the entrapment of hydrocarbon accumulation in the area with different juxtaposed units. However, some sections have leakage potential where each horizon is juxtaposed against one another across the fault. As seen in the SGR calculation and the across-fault pressure difference estimation, the results confirm seal capacity and show the threshold for static hydrocarbon sealing. Furthermore, the methodology and the result in this research can be applied to predict the fault seal capacity in other areas of similar lithologies and structures and help to evaluate the potential in hydrocarbon accumulation.
Download or read book Petroleum Abstracts written by and published by . This book was released on 1992 with total page 1716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Index of the Publications of the Association written by American Association of Petroleum Geologists and published by . This book was released on 1986 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Abstracts Literature and Patents written by and published by . This book was released on 1989 with total page 1528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Source Rocks written by Barry J. Katz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past two decades there has been increased interest in the availability of hydrocarbon charge through a better understanding of petroleum geochemistry and the identification and characterization of petroleum source rocks. These rocks are geochemically unique and form under specific sets of circumstances. This book brings together both geologic and geochemical data from fifteen petroleum source rocks, ranging in age from Devonian to Eocene, that would otherwise be widely dispersed in the literature or available only in proprietary corporate databases. Much of this information, presented in either a tabular or graphic fashion, provides the petroleum explorationist and the geochemist with a framework to establish relationships among various geochemical indices and depositional settings.
Download or read book Future Petroleum Provinces of the United States written by National Petroleum Council. Committee on Possible Future Petroleum Provinces of the U.S. and published by . This book was released on 1970 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Index of Publications of the American Association of Petroleum Geologists written by American Association of Petroleum Geologists and published by . This book was released on 1986 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reservoir Characterization written by Larry Lake and published by Elsevier. This book was released on 2012-12-02 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reservoir Characterization is a collection of papers presented at the Reservoir Characterization Technical Conference, held at the Westin Hotel-Galleria in Dallas on April 29-May 1, 1985. Conference held April 29-May 1, 1985, at the Westin Hotel—Galleria in Dallas. The conference was sponsored by the National Institute for Petroleum and Energy Research, Bartlesville, Oklahoma. Reservoir characterization is a process for quantitatively assigning reservoir properties, recognizing geologic information and uncertainties in spatial variability. This book contains 19 chapters, and begins with the geological characterization of sandstone reservoir, followed by the geological prediction of shale distribution within the Prudhoe Bay field. The subsequent chapters are devoted to determination of reservoir properties, such as porosity, mineral occurrence, and permeability variation estimation. The discussion then shifts to the utility of a Bayesian-type formalism to delineate qualitative ""soft"" information and expert interpretation of reservoir description data. This topic is followed by papers concerning reservoir simulation, parameter assignment, and method of calculation of wetting phase relative permeability. This text also deals with the role of discontinuous vertical flow barriers in reservoir engineering. The last chapters focus on the effect of reservoir heterogeneity on oil reservoir. Petroleum engineers, scientists, and researchers will find this book of great value.
Download or read book The Petroleum System written by Geological Survey (U.S.) and published by . This book was released on 1989 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigations about porosity in petroleum reservoir rocks are discussed by Schmoker and Gautier. Pollastro discusses the uses of clay minerals as exploration tools that help to elucidate basin, source-rock, and reservoir history. The status of fission-track analysis, which is useful for determining the thermal and depositional history of deeply buried sedimentary rocks, is outlined by Naeser. The various ways workers have attempted to determine accurate ancient and present-day subsurface temperatures are summarized with numerous references by Barker. Clayton covers three topics: (1) the role of kinetic modeling in petroleum exploration, (2) biological markers as an indicator of depositional environment of source rocks and composition of crude oils, and (3) geochemistry of sulfur in source rocks and petroleum. Anders and Hite evaluate the current status of evaporite deposits as a source for crude oil.
Download or read book Geophysics and Geosequestration written by Thomas L. Davis and published by Cambridge University Press. This book was released on 2019-05-09 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the geophysical techniques and analysis methods for monitoring subsurface carbon dioxide storage for researchers and industry practitioners.
Download or read book Geology and Mineral Resources of Nigeria written by Nuhu George Obaje and published by Springer. This book was released on 2009-06-18 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains details on the geological units of Nigeria and the associated mineral resources. The book is divided into three parts. Part 1 discusses the geology of the crystalline rocks and their regional distribution while the sedimentary basins constitute the subject of Part 2. Part 3 takes the mineral resources of Nigeria one on one, their geological environment, mode of occurrence, localities and where possible the reserves estimation. Thereafter, an account of the previous and current mining policies (including that of petroleum) of the Nigerian government is given and goes ahead to list some specific investment opportunities in the solid minerals sector.
Download or read book Preliminary Determination of Epicenters written by and published by . This book was released on 2006 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
