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The AAPG/Datapages Combined Publications Database

Showing 7,437 Results. Searched 200,357 documents.

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Earth crustal analysis of Northwest Sabah region inferred from receiver function method

Abdul Halim Abdul Latiff, Faridah Othman

Geological Society of Malaysia (GSM)

...). From the 1-D velocity models inferred from receiver function inversion, the subsurface structural framework and velocity anomalies within the crust...

2020

Abstract: Salt Shape Tomography; #90254 (2016)

Patrice Guillaume, Olivier Hermant, Stanislaw Warzocha

Search and Discovery.com

... of velocity up to approximately 6 Hz but have difficulty estimating the position and amplitude of strong velocity contrasts. Using tomography to determine...

2016

The validity and usefulness of autostratigraphic length scale in interpreting geologic sections: An examination with diffusion-based forward stratigraphic modeling

Keigo Motomiya, Kenya Ono, Tetsuji Muto, Naoya Wada

International Meeting for Applied Geoscience and Energy (IMAGE)

... be estimated from the cross-section area of the sediment accumulated for each time step. Another method of estimating 2D is to measure the length...

2022

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... used a Tau-P refraction tomography, with constraints derived from up-hole times. The Tau-P model provided us with a more convincing near-surface velocity...

2015

-- no title --

user

Search and Discovery.com

.... By estimating the probability distribution of the noise as it varies with time and CMP, and stacking using a maximum-likelihood estimator...

Unknown

-- no title --

user

Search and Discovery.com

.... By estimating the probability distribution of the noise as it varies with time and CMP, and stacking using a maximum-likelihood estimator...

Unknown

Abstract: Full Waveform Inversion with Phase Encoded Deconvolution Imaging Condition; #90224 (2015)

Wenyong Pan, Kris Innanen, and Gary Margrave

Search and Discovery.com

... [email protected] Summary Full waveform inversion (FWI) is a very important method for estimating the subsurface parameters. While it suffers from extensively...

2015

Fractured Reservoir Prediction … A Case Study in the Sichuan Basin; #10512 (2013)

Ling Yun, Xiangyu Guo, Qianggong Song, and Weisheng He

Search and Discovery.com

... from 10-40Hz to 10-125Hz after processing. In addition, the ZVSP velocity is approximately equivalent to the average velocity at normal incidence...

2013

The Geophysical Aspects of Abnormal Fluid Pressures

Edward B. Reynolds, John E. May, Alf Klaveness

Houston Geological Society

... velocity departures from the normal trend in a predominantly sand-shale section are generally good indicators of undercompacted and overpressured...

1971

Abstract: Methods in Estimating Visco-Elastic Properties for Gas Cloud Imaging : A Multicomponent Seismic and Rock Properties Analysis (Geophysics Poster 6)

Ang Chin Tee, M Hafizal Mad Zahir

Geological Society of Malaysia (GSM)

...: The measured and modeled Vp/ Vs ratio. Figure 3: Estimating the position of Common Conversion Point (CCP) from Vp/Vs ratio. Figure 4: P-S impulse...

2011

Seismic Inversion as an Exciting Tool to Delineate Facies Distribution in Tiaka Carbonate Reservoirs, Sulawesi - Indonesia

Deddy Hasanusi, Erham Adhitiawan, Anies Baasir, Leonard Lisapaly, Robert van Eykenhof

Indonesian Petroleum Association

... the feasibility to discriminate lithology types from these properties. After a series of Quality Control (QC) checks, a cross-plot showing the best lithology...

2007

Abstract: Integration of Well Logs and Seismic Data for Prediction of Elastic Properties in a Heavy Oil Sand Reservoir: Manitou Lake, Saskatchewan; #90171 (2013)

Maria F. Quijada and Robert R. Stewart

Search and Discovery.com

... Stewart, 2006, Estimating lithology and porosity from 3C seismic data and well logs: Pikes Peak heavy oilfield, Saskatchewan: CSEG Recorder, 31. AAPG...

2013

Delineating Thin-Bed Tight Gas Sand Reservoir with Prestack Joint PP/PS Inversion, #41363 (2014)

Zhiwen Deng, Ming Qiang, Shuanghu Shi, Xiaofeng Liang, Yang Zhu, Yijun Zhou, Qingjia Tong

Search and Discovery.com

... analysis approach from 3C data that can image P and Sv-waves in the same PP or PS wave time scale. In fact, we carry out the velocity analysis in depth...

2014

Basic Open Hole Tools: Part 4. Wireline Methods

Mark W. Alberty

AAPG Special Volumes

.... The correlation and lithology devices are used primarily to correlate between wells and to discriminate reservoir from nonreservoir rocks. The resistivity...

1992

Benefits of selective stacking of windowed high-resolution linear radon transform (HRLRT) images from traffic-induced passive-seismic data with the multi-channel analysis of surface waves (MASW) method in Lawrence, Kansas

Julian Ivanov, Richard D. Miller, Dmitry Borisov, Shelby Peterie, Anthony M. Hoch

International Meeting for Applied Geoscience and Energy (IMAGE)

...Benefits of selective stacking of windowed high-resolution linear radon transform (HRLRT) images from traffic-induced passive-seismic data...

2022

New Integrated Workflows for Improved Pore Pressure Prediction and Seismic Imaging, #41705 (2015).

Marek Kacewicz, Sankar Muhuri, Weihong Fei

Search and Discovery.com

...) cube from Basin Model (BM) results and Mechanical Earth Model, e.g., MEM addressing shallow hazards, and 2. Hybrid Velocity cube (HV) from HES...

2015

Value of conventional PS-wave velocity analyses for PSDM of deep-water OBS data

James Gaiser, James Simmons, Moacyr de Souza Bezerra

International Meeting for Applied Geoscience and Energy (IMAGE)

... are used for shallow velocity analyses. the form of vertical transverse isotropy (VTI). Figure 2 is a typical example, from inline 2458, of the 3D...

2022

Machine learnings and lessons learned on improvements to Castagnas mudrock, Gardners density, and Fausts velocity estimation

David J. Emery, Marcelo Guarido, Brian Russell, Daniel Trad

International Meeting for Applied Geoscience and Energy (IMAGE)

... values and overfitting. Theory Empirical relationships have generally been used to estimate missing log information. Estimating DT from RES was proposed...

2022

Abstract: Turning-Ray Tomography and Tomostatics; #90224 (2015)

Babatunde Arenrin, Gary Margrave, and John Bancroft

Search and Discovery.com

... tomography is a good tool for estimating near surface velocity structure, especially in areas where conventional refraction statics fail...

2015

Abstract: *Detection of Hydrocarbons from Velocity Logs using the Wavelet Coherence Analysis: A Case Study from Algerian Tight Reservoirs; #91202 (2022)

Said Gaci, Mohammed Farfour, and Saliha Amoura

Search and Discovery.com

...Abstract: *Detection of Hydrocarbons from Velocity Logs using the Wavelet Coherence Analysis: A Case Study from Algerian Tight Reservoirs; #91202...

2022

Impact of Shear Velocity Estimation on Wellbore Stability, #42351 (2019).

Charles Otoghile, Chima Cyril Udeze

Search and Discovery.com

... is in estimating shear velocity and to determine the locally calibration coefficients of the equation to use for similar lithologies in the Niger Delta. The results...

2019

Complex Model Building using Objective Construction of Curve Ray Time Migration Moveout with Geologic Constraints, #41596 (2015).

Kerry Stinson, Shlomo Levy, Edward Crase, Wai-Kin Chan

Search and Discovery.com

...)). The efficacy of the derived imaging velocity is seen also from the common offset migration gathers (Figure 5) which are quite flat. A second run...

2015

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