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Showing 1 to 20 of 23 for “"Seismic Attributes"”.
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Mapping Middle Paleozoic Erosional and Karstic Patterns with 3-D Seismic Attributes and Well Data in the Arkoma Basin, Oklahoma
<p>Newly available industry well data and seismic attribute analysis reveal that late Ordovician-early Devonian Hunton Group strata are more widespread (i.e., not removed by mid-Devonian erosion) in the central and southern portions of the Arkoma Basin in eastern Oklahoma than previously thought. …
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Stress prediction, fracture detection, and multiple attribute analysis of seismic attributes in a Barnett Shale gas reservoir, Fort Worth Basin, Texas
… provided RCP with electric well logs, 3D P-wave seismic, microseismic, and engineering data from the area of the Barnett Merge 1 seismic survey under the terms of a confidentiality agreement. In compliance with that agreement, certain information, such as the names and locations of wells, seismic …
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Using rock physics to determine uncertainties in pore-fluid and lithology-estimates from seismic attributes in the Bredasdorp Basin, offshore South Africa
… aimed at developing a workflow for quantitative seismic interpretation. The workflow generated probability maps of various facies and pore-fluid by combining seismic attributes and wireline log data through rock physics relationships and supervised statistical classification. The workflow was …
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Late Paleozoic basin analysis of the Loppa High and Finnmark Platform in the Norwegian Barents Sea : integration of seismic attributes and seismic sequence stratigraphy
… Barents Sea) were investigated using 2D/3D seismic datasets combined with well and core data. These sedimentary successions represent a case of mixed siliciclastic-carbonates depositional systems, which formed during the earliest phase of the Atlantic rifting between Greenland and Norway. …
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Interpretation and Fracture Characterization of Early-Cretaceous Buda Limestone Formation Using Post-Stack 3D Seismic Data in Zavala County, Texas
… these zones using well log and post stack 3D seismic data typically available to medium or small exploration companies. This project provides a workflow based on well log analysis tied to seismic acoustic impedance (AI) inversion to locate areas of probable natural fractures. Acoustic …
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Determination of Reservoir Characteristics Using Geostatistical Analysis
… have been applied to integrate well-log data and seismic attributes. However, conventional deterministic methods of geostatistics, kriging and cokriging often have difficulty identifying the characteristics of lithologic reservoirs because only one secondary attribute is incorporated. To decrease …
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Use of 3D Seismic Azimuthal Iso-Frequency Volumes for the Detection and Characterization of High Porosity/Permeability Zones in Carbonate Reservoirs
… (also referred to as azimuth-limited) 3D seismic volumes.;During this study the porosity/permeability systems of a carbonate, pinnacle reef within the northern Michigan Basin undergoing enhanced oil recovery were investigated using selected seismic attributes extracted from azimuthal 3D …
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Processing Case Study with AVO and Pore Pressure Analyses: Eugene Island, Gulf of Mexico
Seismic exploration uses numerous tools and techniques for detecting hydrocarbon reservoirs in conventional plays as found on the shelf of the northern Gulf of Mexico (GOM). The tools include seismic data-processing attributes, well-log calibration, and AVO (Amplitude Versus Offset) and pore …
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Computational seismic interpretation using attention models, texture dissimilarity, and learning
… and transportation. Oil and gas explorers use seismic surveys, both onshore and offshore, to produce detailed images of the various rock types, layers, and their locations beneath the Earth's subsurface. The acquired data undergo a series of processing steps, which require powerful computing …
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Seismic attribute-assisted structure analysis of the Mackay dome transpressional system, Bighorn basin, southern Montana: Evidence for reservoir compartmentalization
… divide it into a more segmented reservoir. The seismic attributes most extreme curvature, variance, and ant tracking were applied to the Greybull reservoir in order to delineate bounding and segmenting faults of the reservoir. These attributes identified minor faults that divide the reservoir …
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ENHANCEMENT OF THE GEOLOGICAL FEATURES OF THE SCOTIAN BASIN BY THE APPLICATION OF SPECTRAL INVERSION, OFFSHORE NOVA SCOTIA
… from one another due to the limit of seismic resolution. It would be advantageous for geoscientists to image thin beds below resolution, especially those which are of reservoir quality. Frequency information obtained from spectral decomposition is related to the temporal thickness of …
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Structure Segmentation and Transfer Faults in the Marcellus Shale, Clearfield County, Pennsylvania: Implications for Gas Recovery Efficiency and Risk Assessment Using 3D Seismic Attribute Analysis
… through the aid of both traditional and advanced seismic attributes including variance, curvature, ant tracking, and waveform model regression. Through the integration of well log interpretations and seismic data, a detailed assessment of structural discontinuities that may decrease the recovery …
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Seismic Characterization of Faults from 3-D Seismic Data: Fault Detection, and Characterization of the Bakken Formation
… detection and generation of different fault attributes from a seismic discontinuity volume such as dip and strike, density, displacement, and rose diagrams to characterize faults from 3D seismic data in the Bakken Formation. I use principal component analysis (PCA) for automatic fault …
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Evaluating the impact of deep-water channel architecture on the probability of correct facies classification using 3D synthetic seismic data
… but is unresolvable in exploration-scale seismic-reflection profiles. Forward seismic reflectivity modeling of a digital outcrop models is commonly used to explore how depositional architecture is interpretable in a filtered seismic response. One limitation of forward seismic reflectivity …
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Determination of Heterogeneity by High-Resolution Seismic Reservoir Characterization in the Heavy Oil Temblor Reservoir of Coalinga Field, California
… rocks on steam-affected 3D poststack seismic data, merged from different vintages, from the Temblor Formation in the Coalinga heavy oil reservoir in the San Joaquin basin, California. The objective was identification, delineation, and demarcation of reservoir heterogeneities by …
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Faulting and natural fracturing across the DJ Basin: impacts on production from Hereford field, northern Colorado
… the project objectives. This work integrates seismic and well data from the legacy phase of development, fracture log and microseismic data from the recent phase of development, and results from analyses performed by the geology team member on the project to form a more complete picture of how …
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Modeling Offset-Dependent Reflectivity for Time-Lapse Monitoring of Water-Flood Production in Thin-Layered Reservoirs
Seismic time-lapse monitoring of production is an important tool used to efficiently drain a hydrocarbon reservoir. Repeat seismic surveys may be used, because the seismic method is sensitive to the reservoir fluid. A prominent seismic attribute is the reflectivity (or amplitude) as a function of …
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Investigation of and correction for waveform changes arising from NMO stretch
NMO-stretch distorts seismic frequency content significantly depending on depths of the target reservoir and offset locations. It causes poor resolution on CMP-stacked sections for image processing, and also creates difficulty in extracting the exact wavelet for AVO analysis and seismic inversion. …
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Challenges of geophysical processes and interpretation of an unconventional play: a case study from Wattenberg field, Denver-Julesburg Basin, Colorado, The
… various datasets to investigate, including seismic, borehole logs, distributed fiber optic sensing data, microseismic, and production. Relevant research findings were compared and if applicable were linked to other project data from larger regional analyses to enhance the characterization of …
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Seismic amplitude fidelity study for quantitative analysis and its relation to stack-based signal-to-noise ratio estimation using the SEAM Arid model, with application to field data from the Powder River Basin
… and implement quantitative tools to assess the seismic amplitude fidelity for quantitative interpretation in several land acquisition designs, and establish a signal-to-noise ratio (SNR) threshold for adequate quantitative analysis in complex near-surface environments. The first part of the …
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