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The AAPG/Datapages Combined Publications Database

Showing 2,008 Results. Searched 200,691 documents.

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Upscaling acoustic wave equation using renormalization group theory

Ajay Malkoti, Shravan M. Hanasoge, Rene Edouard Plessix

International Meeting for Applied Geoscience and Energy (IMAGE)

... ∆hh ω 2 + Chh ∆hh ˆ ˆ ˆ ˆ ˆ + sl − Clh ∆hh ω 2 + Chh ∆hh ˆ ˆ ˆ ˆ ˆ −1 ˆ CE ≃ Cll − ClhChh Chl . (5) ˆ and the derivative operator, ∆, is F ˆ ∆ = l...

2022

FALCON® Airborne Gravity Gradiometry Provides a Smarter Exploration Tool for Unconventional and Conventional Hydrocarbons: Case Study from the Fitzroy Trough, Onshore Canning Basin

David Moore, Priyanka Roy Chowdhury, Tony Rudge

Petroleum Exploration Society of Australia (PESA)

... the Broome platform. Figure 3. Magnetic First Vertical Derivative from the Yakka Munga AGG survey area, with available seismic lines shown (red). Brisbane...

2012

A Comparative Study for Probabilistic EUR Forecasting in Shale Gas Reservoirs Using Early-Time Production Data

Xiaowen Duan, Xiaolin Xu, Yuewei Pan, Junlei Wang, Ling Fu

Unconventional Resources Technology Conference (URTEC)

... becomes suffering for operators or company stakeholders because of the steep decreasing trend in the early development phase and long-tail phenomenon...

2024

Analytic directional derivative based gradient structure-tensor-based dip to detect seismic faults

Gagandeep Singh, Rahul Mahadik, William K. Mohanty, Aurobinda Routray

International Meeting for Applied Geoscience and Energy (IMAGE)

...Analytic directional derivative based gradient structure-tensor-based dip to detect seismic faults Gagandeep Singh, Rahul Mahadik, William K. Mohanty...

2022

Workflow for a joint inversion of gravity and gravity gradients for environmental applications

Luigi Bianco, Mojtaba Tavakoli, Andrea Vitale, Maurizio Fedi

International Meeting for Applied Geoscience and Energy (IMAGE)

... vertical derivative (Gzzz) we obtain the models shown in Figures 2b and 2d. It appears clear that the Gzzz model (Figure 2b) concentrates...

2022

Integrated Geophysical Studies on the Basement Structure of the Arkoma Basin, Oklahoma and Arkansas, #50710 (2012)

Hamed Alrefaee, G. Randy Keller, Kurt J. Marfurt

Search and Discovery.com

... The total horizontal derivative peaks over the edges and is zero over the body. Total horizontal derivative 2 = THD  dT   dT    +  dX   dY...

2012

Structural Geometry, Kinematics, and Timing of the Duchesne Fault Zone, Uinta Basin, Northeastern Utah, USA; #11368 (2022)

Riley Brinkerhoff and Douglas A. Sprinkel

Search and Discovery.com

... • Laramide • Neogene extension • Deformation • Evidence for pull-apart basins • Evidence for hinge point • Derivative maps • Regional tectonics...

2022

Gravity and Magnetics for Geologists and Seismologists

L. L. Nettleton

AAPG Bulletin

... derivative" map, but other quantities sometimes are calculated. In all cases, a certain group of values Fig. 13. Hypothetical gravity profile showing...

1962

Features of the Formation of Oil-Gas Structures of the Volgo-Ural Region

V. P. Bukhartsev

Petroleum Geology: A Digest of Russian Literature

... of tectonic investigations (3). Definite, provisional, and derivative geologic boundaries contrast. They correspond with narrow parts of geologic space...

1965

Gravity and Magnetic Studies of the Wind River Reservation, Wyoming

Robert P. Kucks

Wyoming Geological Association

..., such as certain wavelengths or trends. Considered for this report were two filtering operations: (1) first vertical derivative, to sharpen or resolve anomalies...

1993

Basin Architecture of the Newfoundland Continental Margin and Its Relationship to Ocean Crust Fabric During Extension: Chapter 13: North American Margins

H. J. Welsink, S. P. Srivastava, A. J. Tankard

AAPG Special Volumes

.... A first-vertical-derivative map was constructed to delineate major discontinuities in the subsurface structure. INTEGRATION OF RESULTS A threefold...

1989

PTTC Network News - Vol. 6, No.4 - 2000

Karl Lang

PTTC

... by government entities such as the MMS has provided some of the impetus for change. Operators, drilling contractors, and service companies have worked...

2000

A Comprehensive Simulation Study of Hydraulic Fracturing Test Site 2 (HFTS-2): Part I - Modeling Pressure Dependent and Time Dependent Fracture Conductivity in Fully Calibrated Fracture and Reservoir Models

Han (Jake) Li, Jichao Han, Jiasen Tan, Matt Jones, Yu Zhao, Soodabeh Esmaili, Fadila Bessa, Vinay Sahni, Sriram Pudugramam, Shunhua Liu, Qian Li, James Kessler

Unconventional Resources Technology Conference (URTEC)

... reservoirs, operators have been improving completion designs and well spacing for decades. Well spacing and completion design optimization is a challenging...

2023

Three-dimensional seismic-based definition of fault-related porosity development: TrentonBlack River interval, Saybrook, Ohio

Justine A. Sagan, Bruce S. Hart

AAPG Bulletin

... to predict porosity in the 3-D seismic survey area away from well locations. An attribute is a derivative of the seismic data that may be extracted over...

2006

"Frac" Treatments — The Modern Well Stimulation Method

R. E. Hurst, J. M. Moore, D. E. Ramsey

Tulsa Geological Society

... acid, are similar in many respects to hydrocarbon gels. As a rule, a gelling agent (usually a carbohydrate or cellulose derivative) is chosen which...

1955

The Upper Bakken Shale Resource Play, Williston Basin

Steve, Sonnenberg

Unconventional Resources Technology Conference (URTEC)

... petroleum system is the current focus of exploration and development activity by many operators. The structure of the Williston Basin at the top...

2014

A strategy for acoustic impedance direct inversion in depth domain

Ruiqian Cai, Chengyu Sun, Shizhong Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... shallow to deep formations (Lin et al., 2013), which could be caused by many reasons, such as the velocity effect and deep migration operators (Etgen...

2022

Tomographic waveform inversion (TWI) applied to real seismic data

Jlio Oliva Frigrio, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

... the focusing operator Fμ defined by Frigério and Biondi, 2020, as: ˜ ˜ ˜ S* M S I Iμ = Fμ I = ∑ θ μ θ (4) θ The operators in Equation (4) are: local...

2022

A deep learning-based inverse Hessian for full-waveform inversion

Mustafa Alfarhan, Matteo Ravasi, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... to the gradient to define the model update. A special case, when second-order derivative terms in the Hessian (which account for second-order...

2023

Reflection waveform inversion regularized with structural constraints and scattered data interpolation

Chengliang Wu, Huazhong Wang, Bo Feng, Ting Lei, Rongwei Xu, Shen Sheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... (Wellington et al., 2015) and sparse additive inverse Laplacian correlation operators (Wellington et al., 2016) are applied as preconditioning...

2023

Simultaneous imaging of basement relief and varying susceptibility in deep-learning approach

Zhuo Liu, Yaoguo Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... denotes the derivative of the evaluated model, and both these two losses compare and minimize the differences in the smoothness between the recovered model...

2024

Kriging-based surrogate models for convergence acceleration of Markov chains: An example of magnetotellurics-dix joint inversion

Alejandro Quiaro, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... operators for the different geophysical observations, and d and m which are the vertical concatenation of the observed data and model vectors for all...

2024

Seismic Shothole Drillers Litholog Database and GIS

I. Rod Smith

Search and Discovery.com

...) it allows the creation of derivative GIS databases and shapefiles, thereby producing a synthesis and regional characterization of lithostratigraphy, which...

Unknown

Seismic Shothole Drillers Litholog Database and GIS

I. Rod Smith

Search and Discovery.com

...) it allows the creation of derivative GIS databases and shapefiles, thereby producing a synthesis and regional characterization of lithostratigraphy, which...

Unknown

Reflections on Geostatistics and Stochastic Modeling

D. E. Myers

AAPG Special Volumes

... moments are far from adequate in characterizing even a second-order stationary random function. The variogram is somewhat analogous to a derivative...

2006

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