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The AAPG/Datapages Combined Publications Database

Showing 1,126 Results. Searched 200,619 documents.

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Intraplate Stresses and the Tectono-Stratigraphic Evolution of the Central North Sea: Chapter 35: North Sea and Barents Shelf

H. Kooi, S. Cloetingh

AAPG Special Volumes

... subsidence. The thermal calculations have been carr ed out using a finite-difference approach (Verwer, 1977). This enables us to incorporate finite...

1989

Modified Higher-Order 3D Displacement Discontinuity Method for Prediction of Fracture Propagation

Serhii Kryvenko, George Julius Moridis, Thomas Alvin Blasingame

Unconventional Resources Technology Conference (URTEC)

... fracture. The nonlinear fluid mechanics equations were discretized by the finite difference method and iteratively coupled with the simplified 3D-DDM...

2021

The Mechanistic Modeling of Fluid Flow in Shale

Rouzbeh Ghanbarnezhad Moghanloo, SeyedSaeid Hosseinipoor

Unconventional Resources Technology Conference (URTEC)

... , .  Vmax 2 dP dt 1  b3 P  dt (16) Appendix A details the finite difference scheme for Eq. 12 and the process of non-dimensionaliztion. Results...

2014

Improved Petrophysical Interpretation of Laboratory Pressure-Step-Decay Measurements on Ultra-Tight Rock Samples

Younas Dadmohammadi, Siddharth Misra, Carl H. Sondergeld, Chandra S. Rai

Unconventional Resources Technology Conference (URTEC)

..., followed by a deterministic inversion of the measured downstream pressure data based on numerical finite-difference modeling of nitrogen gas flow...

2016

Estimate near-surface velocity with reversals using deep learning and full-waveform inversion

Yong Ma, Xu Ji, Weiguang He, Tong Fei

International Meeting for Applied Geoscience and Energy (IMAGE)

... be easily converted to the depth domain for other purposes, such as finite-difference forward modeling and FWI. Example results of the training...

2022

Structural subdivision of channel sand bodies based on frequency division coherence and attribute fusion

Qian Yu, Jianli Wang, Huajing Chen, Heng Zhang, Lien Bian

International Meeting for Applied Geoscience and Energy (IMAGE)

... seismic data. The derivative of u and H[u] with respect to time can be realized by finite difference. In addition, it is necessary to obtain...

2022

Estimation of anisotropic parameters from semblance picking using dynamic programming

Hong Liang, Houzhu (James) Zhang, Dongliang Zhang, Hongwei Liu, Xu Ji

International Meeting for Applied Geoscience and Energy (IMAGE)

... the synthetic models (𝑉 , 𝜀, and 𝛿) in Figure 1 (shear-wave velocity and density not shown here) and elastic VTI finite difference modeling to generate...

2022

A Quaternary Volcanic Aquifer System in Central America: Key Factors in Groundwater Potential and Protection

S.S.D. Foster, J.M. Parker, A. Gomez Cruz

Circum Pacific Council Publications

...: Ground Water, v. 23, p. 795-801. McDonald, M. G., and A. W. Harbaugh, 1983, A modular threedimensional finite-difference ground water-water flow model...

1995

Reservoir Data Analysis at the Wellsite

Sami O. Ajam, Terry O. Anderson, Don Kyle

Indonesian Petroleum Association

... and skin effect in unsteady liquid flow, Part II: finite difference treatment. Transactions of the Society of Petroleum Engineers of AIME, 249-291...

1983

Codes and Ciphers Simultaneous: Source Separation: PART II

Johan O. A. Robertsson, Dirk-Jan Van Manen, Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... the response to multiple sources during a single finite difference simulation, for example. Although there are some promising developments...

2016

Detection threshold of a shallow CO2 plume with VSP data from the CaMI Field Research Station

Brendan J. Kolkman-Quinn, Donald C. Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

... frequency residuals from the time-lapse difference (Figure 2). Without need of further cross-equalization, stacked baseline reflection amplitudes...

2022

Verification of dynamic strain field measurements made with DAS during active-source vibration by quantitative comparison to geophones

Peter G. Hubbard, Joseph Vantassel, Brady R. Cox, James W. Rector, Michael Yust, Kenichi Soga

International Meeting for Applied Geoscience and Energy (IMAGE)

... measurements in terms of unitless strain over the same gauge length as the DAS system. Theory DAS measurements can be approximated as a spatial finite...

2022

On the absorbing boundaries to replicate semi-infinite half-space in numerical seismic analyses using the finite element method

Tyler R. Hebert, James M. Bryce, Arka Prabha Chattopadhyay

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The Finite Element Method (FEM) and the Finite Difference Method (FDM) are the two primary methods which are used for such computational models that have been...

2022

CO2-EOR monitoring using time-lapse FWI with walkaway VSP datasets in a carbonate field onshore Abu Dhabi

Yuji Yamada, Shotaro Nakayama, Tomohide Ishiyama, Mikako Mochizuki, Takuji Mouri, Hidehiko Shimizu, Aysha Mohammad Al Hamedi, Afra Aljaberi

International Meeting for Applied Geoscience and Energy (IMAGE)

... sets for the baseline and monitor surveys were generated by acoustic wavefield simulation with the finite difference method. Finally, these synthetic...

2023

Generalization Capability of Data-driven Deep Learning Models for Seismic Full-waveform Inversion: An Example Using the OpenFWI Dataset

Ayrat Abdullin, Umair Bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

... space finite difference acoustic modelling. We also choose a simpler “flat” patch to test the generalization of the pretrained models (Figure 3-D...

2023

Revolutionizing seismic data compression: Unlocking the power of stable diffusion neural networks

Ayrat Abdullin, Umair Bin Waheed, Naveed Iqbal

International Meeting for Applied Geoscience and Energy (IMAGE)

... uses a 2D 2nd-order in time and 4th-order in space finite difference acoustic modeling. Then the Figure 4: Results of the Stable Diffusion encoding...

2023

Application of Fullwaveform Tomography to VSP Walkaway Data

Eric Takam Takougang, Youcef Bouzidi

Petroleum Exploration Society of Australia (PESA)

... tomographic inversion with finite-difference traveltimes: Journal of Seismic Exploration, 2, 257–274. Bednar, J.B., Shin, C., and Pyun, S., 2007, Comparison...

2016

Integrated Numerical Simulation Stress Field and Seismic Attribute to Predict Shale Fracture Distribution

Shize Wang, Gang Xu, Ming Guo, Zhongquan Li

Unconventional Resources Technology Conference (URTEC)

... This numerical simulation analysis is mainly conductedwith the FLAC-3D software, which can have the finite difference method program displayed in a three...

2016

The Concept of Stationarity and Support in Permeability Assessment for Upscaling using the Probe Permeameter

Septi Anggraeni

Indonesian Petroleum Association

... is supplied by Goggin's finite difference result that is a function of depth of investigation and the homogeneous flow assumption. Several studies have been...

2000

A more automated footprint removal for full-waveform inversion

David F. Halliday, James Xu, Soumya Roy

International Meeting for Applied Geoscience and Energy (IMAGE)

... for interpretation – particularly as the industry continues to adopt the use of finite-difference reflectivity images that are derived directly from FWI...

2024

Direction correction and energy normalization of vibrator for 3D9C seismic wave data

Zhiwen Deng, Rui Zhang, Xiusong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... 1000 3.3 5.0 6.9 9.0 0.2 0.2 0.2 0 0.1 0.1 0.1 0 0.16 0.16 0.16 0 150 120 120 (ISO) A 9C synthetic data was simulated by finite difference...

2024

Flow Simulation of Complex Fracture Systems With Unstructured Grids Using the Fast Marching Method

Changdong Yang, Xu Xue, Michael J. King, Akhil Datta-Gupta

Unconventional Resources Technology Conference (URTEC)

...tion of the Eikonal equation with the FMM. Once obtained, Eq.3 then can be solved numerically with a finite difference scheme. Since Eq.3 is solved only in ...

2017

Studying the feasibility of phase slowness inversion of seismic anisotropic parameters using VSP DAS data

Yu Chen, Takashi Mizuno, Manish Lal Kaitan, Xinyuan Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... by a finite difference waveform modelling. We manually pick the P phase travel times. In the inversion, we set search ranges of 1000 – 5000 m/s for Vp...

2024

Scalable, efficient, and adaptive simulation of frequency-domain wave propagation

Jacob Badger, Andrey Bakulin, Sergey Fomel

International Meeting for Applied Geoscience and Energy (IMAGE)

... discretization techniques such as finite difference methods yield indefinite discrete systems that preclude use of classical scalable solvers. Frequency-domain...

2024

Probabilistic Approach to Development Drilling Decisions in Low Permeability Gas Reservoirs

Robert S. Thompson, Clark Huffman

Wyoming Geological Association

... the use of minimalist volumetric or decline curve based simulations and the use of three-dimensional, multiphase, finite difference fluid flow...

2001

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