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The AAPG/Datapages Combined Publications Database
Showing 20,604 Results. Searched 200,357 documents.
Sonic Velocity in CarbonatesA Combined Product of Depositional Lithology and Diagenetic Alterations
Flavio S. Anselmetti, Gregor P. Eberli
Special Publications of SEPM
... of more that affect porosity and core borings in sediments not afunction of burial depth Velocity 1 the depositional lithology...
2001
Application of Fullwaveform Tomography to VSP Walkaway Data
Eric Takam Takougang, Youcef Bouzidi
Petroleum Exploration Society of Australia (PESA)
... is necessary to ensure that they can be predicted by the acoustic wave-equation. Figure 1 shows a receiver gather at shallow depth; the presence of what...
2016
The impact of estimated temporal and spatial variability of water layer velocity on the correction of OBS data
Peter Scholtz, Truong Nguyen, Arash Jafar Gandomi
International Meeting for Applied Geoscience and Energy (IMAGE)
... depth-dependent ones. The velocity profile estimation method described by Bekara et al. (2021) applies a seconddegree polynomial approximation to model...
2023
Abstract: Forward Modeling of Log Response in Geopressured Formations Reveals Valuable Insights to the Various Pore Pressure Prediction Techniques, by J. C. Rasmus; #90923 (1999)
Search and Discovery.com
1999
Seismic Reservoir Characterization of the Bone Spring and Wolfcamp Formations in the Delaware Basin with Efforts at Quantitative Interpretation - A Case Study
Satinder Chopra, Ritesh Kumar Sharma, James Keay
Unconventional Resources Technology Conference (URTEC)
... volumes, a multiregression approach (Ray and Chopra, 2016) is used, wherein a target interval velocity log is modeled as a linear combination...
2019
Echo phone for direct attenuation indication
Lu Liu, Tong Fei, Fuhao Qin, Yi Luo
International Meeting for Applied Geoscience and Energy (IMAGE)
... by other extrapolation approaches such as ray tracing (Liu et al., 2011), one-way wave equation (Liu, 2019), etc. Here we use two simple models...
2022
Abstract: AVAZ and VVAZ Practical Analysis to Estimate Anisotropic Properties; #90224 (2015)
Yexin Liu
Search and Discovery.com
... velocity is obtained by setting 𝜂 𝑒𝑓𝑓𝑒𝑐𝑡𝑖𝑣𝑒 = 0 and thus eliminating the third term in Equation (1). The HTI travel-time can be re-written: 2...
2015
Velocity and Velocity
M. Al-Chalabi
Petroleum Exploration Society of Australia (PESA)
... Processing Assumption of uniform ground Pre-Stack & Model of ground 1------.. Depth Domain Processing structure/ velocity Fig. 7. The velocity cycle...
2000
Using x-ray computed tomography to estimate hydrate saturation in sediment cores from Green Canyon 955, northern Gulf of Mexico
Emma A. Oti, Ann E. Cook, Stephen C. Phillips, and Melanie E. Holland
AAPG Bulletin
... are highlighted in yellow. (B) The x-ray computed tomography (XCT) values, (C) gamma-ray density, and (D) compressional (P-wave) velocity along with (E...
2022
Seismic Imaging through Outcropping Carbonates: An Example from the Canadian Rocky Mountains, , #41533 (2015).
Yong Hua, Don C. Lawton
Search and Discovery.com
... and replacement velocity for the surface layer. Linear Noise Attenuation Radial filters and FK filters were tested on shot gathers to enhance signal...
2015
Burial Diagenesis of Illite/Smectite, a Kinetic Model: ABSTRACT
D. G. McCubbin, J. W. Patton
AAPG Bulletin
...-linear increase in temperature with time. For each of several wells where we had complete data, we solved this equation for values of activation energy...
1981
Observing Pore-Scale Gas Hydrate Morphology and its Acoustic Response to the Host Sediments
Search and Discovery.com
N/A
Abstract: Advanced Seismic Acquisition Survey Design Based on Illumination Analysis; #90319 (2018)
Pavel Golikov, Emad Hemyari, Abdulaziz Almuhaidib
Search and Discovery.com
... velocity earth model. This assumption, however, is true only if the target interface is flat and the earth model has no lateral velocity variations...
2018
Integrating Geological Attributes with a Multiple Linear Regression of Geophysical Well Logs to Estimate the Permeability of Carbonate Reservoirs in Campos Basin, Southeastern Brazil; #10930 (2017)
Paula Almeida, Abel Carrasquilla
Search and Discovery.com
... of the environment defined by the gamma ray log - well A3. RESULTS Application of estimated permeability 1. Multiple linear regression from logs - Well A10...
2017
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)
... the drainage volume during the transient pressure propagation process using the Fast Marching Method (FMM) and then rapidly solves fluid flow equation...
2017
Resolving Multiphase Fractions in Horizontal Wells Using Speed of Sound Measured with Distributed Acoustic Sensors and a PVT Database
Peyman Moradi, Brian Seabrook, Neal Adair, Ricardo Garza
Unconventional Resources Technology Conference (URTEC)
... of the sound for substantial heat conduction and radiation to take place. According to the NewtonLaplace equation, the sound velocity is related to bulk...
2024
Amplitude and Bandwidth Recovery Beneath Gas Zones Using Kirchhoff Prestack Depth Q-Migration
Jonathan Liu, Peter Traynin, J. M. Reilly
Indonesian Petroleum Association
... Kirchhoff Prestack Depth Q-migration is efficient computation of traveltimes and amplitudes. Let c(x) be a complex velocity in a viscoacoustic medium...
2007
Identification of Source Rocks on Wireline Logs by Density/Resistivity and Sonic Transit Time/Resistivity Crossplots
B. L. Meyer , M. H. Nederlof
AAPG Bulletin
... "pseudoregression" equation is then the discriminant function, where Y is replaced by D. This analysis results in a linear equation for the discriminant score D...
1984
Insight on the uplift the Wave-Equation Based AVO technology may have on unconventional reservoirs: A case study on the Vaca Muerta Formation, Neuquén Basin, Argentina.
David Curia, Ezequiel Valeff, Francisco Ghersi, Hansel Gonzalez, Pablo Benitez
Unconventional Resources Technology Conference (URTEC)
... of depth layers in 1.5D. Leveraging the intrinsic non-linearity of the wave equation, a spatially broader elastic property model is derived...
2025
Analysis of the Hydrocarbon Sandstone Distribution Using Rock Physics and Petrophysics Calculations, Simultaneous Inversion, Extended Elastic Impedance (EEI) and Curved Pseudo-Elastic Impedance (CPEI) in X Field Bonaparte Basin
Alfan Hidayah Kusuma, Meta Nisrina Syafitri, Zakki Fahrurrozi
Indonesian Petroleum Association
... of depth domains into the time domain can be done by using well log sonic. However, the sonic velocity in a well seismic tie has several weaknesses...
2020
Pre-Stack Imaging: Time or Depth? (Paper 25)
Carl Notfors, Peter Whiting, Geoff Mansfield
Geological Society of Malaysia (GSM)
... they handle lateral velocity variations. The depth algorithm comprehends any lateral velocity variation whereas the time algorithm assumes local...
2000
Abstracts: Microseismic Source Inversion in Anisotropic Media; #90173 (2015)
Scott Leaney, Chris Chapman, and Tadeusz Ulrych
Search and Discovery.com
... three steps: 1. a ray-based, frequency domain, linear inversion for the moment tensor and source function; 2. a nonlinear inversion to obtain...
2015
TTI Wave Equation Migration by Phase-Shift Plus Interpolation
Richard A. Bale
Search and Discovery.com
... greater effort are expected from the use of wave-equation migration methods on TTI data. In contrast to ray-tracing based methods, wave-equation migration...
Unknown
TTI Wave Equation Migration by Phase-Shift Plus Interpolation
Richard A. Bale
Search and Discovery.com
... greater effort are expected from the use of wave-equation migration methods on TTI data. In contrast to ray-tracing based methods, wave-equation migration...
Unknown
Cross-Borehole Tomography in Development Geology: Part 7. Geophysical Methods
J. H. Justice, M. E. Mathisen, J. R. Bulau, A. A. Vassiliou
AAPG Special Volumes
... of the energy through it. Algorithms based on ray tracing or some form of the wave equation are usually used. These algorithms solve a system...
1992