Browsing by Subject "Geophysics"
Now showing items 1-20 of 23
-
A REGIONAL MODEL TO TEST THE CONCEPT OF GLOBAL EASTWARD MANTLE FLOW USING FINITE ELEMENTS
(2009)Computer modeling of tectonics involving the entire Caribbean and North Andes plates, as well as most of the Cocos plate and a portion of the Nazca plate, have been used to support the concept of a global eastward mantle ... -
Aftershock decay in space and time of induced seismicity in Oklahoma
(2019-05-10)The current paradigm for estimating long-term seismic hazard in a region includes removing dependent earthquakes that occur after a mainshock, otherwise known as aftershocks, from an earthquake catalog to identify the ... -
Application of passive seismic interferometry for local and shallow imaging
(2023)Exploratory imaging of the shallow crust is motivated by – (i) the presence of exploitable natural resources, (ii) its influence on seismicity and associated hazards, and (iii) the insights it can provide into the evolution ... -
Characterization of the subsurface from evaluating low amplitude seismic recordings
(2023-07)A geoscientist yearns to learn more about the subsurface and one way of characterizing the subsurface is through active seismic methods which utilize a local source to initiate a strong waveform (e.g., explosives, vibroseis, ... -
Combining seismic attributes and machine learning for seismic facies analysis
(2022-05-13)Understanding how to correctly select a group of input seismic attributes is critical to perform a robust machine learning (ML)-based seismic facies analysis. However, due to the large number of seismic attributes enhancing ... -
CORRELATING RATE OF PENETRATION AND BIT TRIPS TO 3D SURFACE SEISMIC DATA, ANADARKO SHELF, OKLAHOMA
(2016)While initially thought to be laterally homogeneous, operators quickly realized that unconventional resource plays can exhibit considerable geologic heterogeneity. Since this realization, 3D surface seismic analysis has ... -
A DISLOCATION-BASED BOUNDARY ELEMENT METHOD TO MODEL PRESSURIZED FRACTURES
(2019)A significant portion of hydrocarbon and geothermal resources in the world, and especially in the United States, is unconventional. Some of the unconventional resources have special geological structures so that their ... -
Earthquake Source and Rupture Characterization from Microearthquakes to Megathrust Earthquakes *
(2020-07-30)The understanding of earthquake rupture processes is vitally important to the proper estimation of hazard. I examine earthquake ruptures from megathrust earthquakes down to microquakes (< 3 magnitude) in order to better ... -
Geophysical assessment on how near surface sediments impact seismic groundmotion due to induced seismicity
(2024-05)In Union City, Oklahoma, hydraulic fracturing and wastewater injection are a root cause of increased induced seismicity that is felt by nearby homeowners who report damage to the Oklahoma geological survey (OGS). To ... -
Identifying Geophysical Patterning Along the Landscape of the Silver Glen Springs Archaeological Complex
(2019-05-10)The Silver Glen Springs Complex (SGSC) is a collection of archaeological sites that has been thus-far defined by the terraforming regime of shell mounding conducted by fisher-gatherer-hunters that created many monumental ... -
Machine learning applications for seismic processing and interpretation
(2020-07-30)During the past few years, exploration seismology has increasingly made use of machine learning algorithms in several areas including seismic data processing, attribute analysis, and computer aided interpretation. Since ... -
Machine learning for the subsurface characterization at core, well, and reservoir scales
(2020-05-08)The development of machine learning techniques and the digitization of the subsurface geophysical/petrophysical measurements provides a new opportunity for the industries focusing on exploration and extraction of subsurface ... -
Multiscale analysis of seismic event source parameter resolution and characterization
(2021)Earthquake source parameters such as stress drop help us understand the underlying physics of tectonic stress loading and releasing associated with the occurrence of earthquakes, and the influence of human activity on the ... -
Quantitative seismic interpretation and machine learning applications for subsurface characterization and modeling
(2022-12)Quantitative seismic interpretation and geostatistical modeling methods have been widely used for subsurface reservoir characterization. However, the task becomes challenging due to the reservoir complexity and limited ... -
Receiver function imaging of deep and shallow subsurface structures of Oklahoma
(2023)The advancement of seismic imaging methodologies is driven by the requirement to attain a more comprehensive and accurate understanding of the subsurface, which holds significant importance for natural resource exploration, ... -
Seismic attribute optimization with unsupervised machine learning techniques for deepwater seismic facies interpretation: users vs machines
(2020-07)Machine learning (ML) has many applications within the geosciences, from predicting seismic facies, to automatic fault detection. A variety of machine learning algorithms are commonly employed, among these principal component ... -
Seismic Data Conditioning for Quantitative Interpretation of Unconventional Reservoirs
(2015-08-14)Shale resource plays are fairly new to the petroleum industry, but they have reinvigorated oil and gas production in North America. Brittleness and TOC are the two most important parameters for shale resource characterization. ... -
Seismic Stratigraphy of a Circular Concave-Downward Structure, Chukchi Sea
(2017-12-15)A circular concave-downward structure (CCDS) and its structural features and seismic facies can be observed in several 2D seismic lines imaging the Chukchi Sea planning area. The area in question is largely underexplored ... -
Seismic-constrained Lithology Prediction and Reservoir-quality Modeling using Pre-stack Inversion and Bayesian Classification, Mississippian Meramec strata, eastern Anadarko Basin, Oklahoma
(2020-05)The Mississippian Meramec strata within the STACK (Sooner Trend in the Anadarko [Basin] in Canadian and Kingfisher counties) play of central Oklahoma is primarily a fine-grained mixed siliciclastic-carbonate system composed ... -
Statistical and deep learning methods for geoscience problems
(2021-12-15)Machine learning is the new frontier for technology development in geosciences and has developed extremely fast in the past decade. With the increased compute power provided by distributed computing and Graphics Processing ...