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The AAPG/Datapages Combined Publications Database

Showing 33,118 Results. Searched 200,293 documents.

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Mapping with Two-Dimensional Seismic Data: Part 7. Geophysical Methods

I. R. Gordon

AAPG Special Volumes

... for resolving relatively small structures. In this case, it might be necessary to interpolate a ground position and then record a time. However, be aware...

1992

2D isotropic and vertical transversely isotropic RTM using SEG Hess VTI Model

Richa Rastogi, Abhishek Srivastava, Monika Gawade, Nithu Mangalath, Laxmaiah Bathula, Bhushan Mahajan, Suhas Phadke

International Meeting for Applied Geoscience and Energy (IMAGE)

...-DAC Innovation Park, Panchavati, Pashan, Pune 411 008, India SUMMARY Reverse time migration (RTM) is an advanced imaging technique which uses two-way...

2022

Implementation aspects of elastic FWI and its application to sparse OBN surveys

Cosmin Macesanu, Faqi Liu, Yi Huang, Hao Hu, Carlos Calderón

International Meeting for Applied Geoscience and Energy (IMAGE)

... improved kinematic agreement with the constant density case. starting model is a smoothed version of a legacy velocity model derived from streamer data...

2024

AAPG/Datapages Discovery Series No. 7: Multidimensional Basin Modeling, Chapter 15: Simple 3-D Modeling of Hydrocarbon Migration

Wangen, M., T. Throndsen

AAPG Special Volumes

... paths follow. The migration algorithm is demonstrated in a simple basin case, before time steps and multicompositional and multiphase migrations...

2003

An acoustic wave equation with the gradients of velocity and density

Jianyong Bai, Orhan Yilmaz

International Meeting for Applied Geoscience and Energy (IMAGE)

... and migration in isotropic media, we present an acoustic wave equation with the gradient of wavefields multiplied by the normalized gradients of velocity...

2023

Aspects to the Resolving Power of 3D Seismic Surveys

Wolfgang Houba

Geological Society of Malaysia (GSM)

..., reordered in perpendicular direction. Both migration approaches are equivalent in the single-velocity case. 3D splitting migration however, is the more...

1985

Abstract: TTI Anisotropic Depth Migration: Which Tilt Estimate Should We Use?; #90211 (2015)

Francois Audebert and Volker Dirks

Search and Discovery.com

..., characterized by tilt axis, polar velocity and anisotropy parameters. In the case of structurally conformable media, where the tilt of the medium coincides...

2015

Abstract: Imaging Oblique Reflectors with Prestack Migration; #90174 (2014)

John C. Bancroft, Thais Guirigay, and Helen Isaac

Search and Discovery.com

... be focused during the migration process by raising the migration velocity Vmig, by dividing the RMS velocity VRMS, by the cosine of the obliquity angle...

2014

Applications of elastic RTM on land data

Min Zhou, Changhua Zhang, Zheng Meng, Bin Yu, Mingqiu Liu, Yequan Chen, Dajian Jiang

International Meeting for Applied Geoscience and Energy (IMAGE)

... examples. With only single component data, the elastic RTM can improve migration images for the structures with large velocity contrast and/or the high...

2024

Baram Field „ The 3D Marine Re-Processing Challenge

Jörg J. Wicker, Jonathan E. F. Stearn

Geological Society of Malaysia (GSM)

... the interval velocity map derived from the seismic stacking velocities for a theoretical layer from sea"bed to a constant time horizon at 950 ms, red...

1999

Application of full-waveform inversion to ultra-high-density OBN data at Clair field

Simon Luo, Xukai Shen, Philip Tillotson, Lindsey Smith, Dan Davies

International Meeting for Applied Geoscience and Energy (IMAGE)

... for migration purposes, and can also provide high-resolution, interpretable velocity models with bandwidth rivaling that of conventional seismic images...

2022

Abstract: Navigating through the Red Sea Subsalt Structures: A Look-Ahead VSP Case Study from Saudi Arabia; #90319 (2018)

Ali A. Aldawood, Carlos Planchart

Search and Discovery.com

...¹ ¹Saudi Aramco, Dhahran, Saudi Arabia. ABSTRACT Obtaining an accurate migration velocity model is an ongoing challenge in seismic exploration. Using...

2018

TAU Migration and Velocity Analysis

Search and Discovery.com

N/A

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

.... This procedure estimates a prestack migration velocity field. Figure 1 shows the PP and PS wave sections by Kirchhoff prestack time migration, which...

2014

Pre-Stack Seismic Data Analysis with 3D Visualization … A Case Study; #41546 (2015)

Yongyi Li, Josh Feng, Maggie Jiao

Search and Discovery.com

...Pre-Stack Seismic Data Analysis with 3D Visualization … A Case Study; #41546 (2015) Yongyi Li, Josh Feng, Maggie Jiao Pre-Stack Seismic Data Analysis...

2015

The Challenge of Applying New Technologies to Exploration in a Sub Andean Basins

Marcelo Benabentos, Pedro Muñoz, Juan Uribe, Francisco Ortigosa, Dewi Jones

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

.... Velocity analysis has evolved from conventional semblance analysis and constant velocity stacks to refined migration velocity analysis, structurally driven...

2009

Abstract: How Hot is the Kitchen? Hydrocarbon Migration Tomography

Rudy Wilhelm

Houston Geological Society Bulletin

... contradiction spooked us. The puzzle has now been resolved using Hydrocarbon Migration Tomography (HCM) scans. Today, the case studies presented...

2020

Chapter 10: Rock Physics Relationships between Elastic and Reservoir Properties in the Haynesville Shale

Kyle T. Spikes, Meijuan Jiang

AAPG Special Volumes

... shows nearly constant velocity for nearly all porosity values. This plot also contains the same model lines that are plotted on Figure 5a. However...

2013

Near-surface modeling by surface wave tomography inversion in oil and gas exploration

Wen Peng, Le Li, Zhonglin Cao, Guangying Wang, Pengfei Duan, Heng Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... constant coefficient can be approximated as the initial velocity model of the S-wave. The near-surface S-wave velocity model established by surface wave...

2024

Imaging of the Guando Field Colombia in Time and Depth

M.A. Hall, V. Avramovic, J.T. Basick, I. Novianti, D.T. Maucione, P.Kroshko, J.C. Garzon

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... migration using a model of similar geological complexity to the Guando field. PreSDM involves a velocity model building approach and the strong...

2003

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