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Showing 1,097 Results. Searched 200,357 documents.
Chapter 14 (Case Histories of Three-Dimensional Seismic Surveys)—Case History 2: Three-Dimensional Seismic Monitoring of an Enhanced Oil Recovery Process
Robert J. Greaves, Terrance J. Fulp
AAPG Special Volumes
... in both density and velocity. Figure 14-2-9. Comparison of sonic traveltime logs (above) and density logs (below) from preburn well W306 and postburn...
2011
Abstracts: Synthetic Microseismic Files; #90173 (2015)
J. Wong, P. M. Manning, L. Han, and J. B. Bancroft
Search and Discovery.com
... for finite difference modeling of microseismograms. A microseismic source is located at x = 0 m and depth of 2130 m in the low-velocity layer; (b...
2015
An Integrated Geophysical Analysis of Crustal Structure in the Wichita Uplift Region of Southern Oklahoma
Amanda Rondot Buckey
Oklahoma City Geological Society
.... Zelt, C.A.; and Smith, R.B., 1992, Seismic traveltime inversion of 2-D crustal velocity structure: Geophysics Journal International, v. 108, p. 16–34...
2012
Developing a robust geologic conceptual model using pseudo 3-D P-wave seismic reflection data
Adrian D. Addison, Michael G. Waddell, Camelia C. Knapp, Duke T. Brantley, John M. Shafer
Environmental Geosciences (DEG)
... seismic profiling (VSP) data allowed the seismic data to be inverted from two-way traveltime to depth, thereby facilitating full integration...
2009
The Global Offset Seismic Approach: Improving Seismic Imaging In Complex Geological Settings
Paolo Dell'Aversana
Petroleum Exploration Society of Australia (PESA)
... as a valid support for static corrections, velocity analysis and migration. Pre-stack depth migration (PSDM) The CMP gathers were used as an input for a PSDM...
2004
Travel-time tomography for joint velocity and transducer location estimation
Edan Gofer, Raanan Dafni, Albert Shalumov, Ramon Axelrod, Moshe Oziel, Pinny Chaviv
International Meeting for Applied Geoscience and Energy (IMAGE)
... of each transducer. We propose a double-difference traveltime tomography method that jointly solves for transducer locations and a velocity model...
2024
From trash to treasure: Three-dimensional basement imaging with “excess” data from oil and gas explorations
Doyeon Kim, and Larry D. Brown
AAPG Bulletin
..., laccoliths, etc.; Figure 6C). The circular feature in Figure 7 exhibits a successively decreasing radius with increasing traveltime (depth) that implies...
2019
New Insights into the Deep-Water Otway Basin - Part 1. Integrated Depth Imaging Workflows Unravelling the Subsurface
Si Ying Lee, Bee Jik Lim, Arwindran Anantan, Alexander Karvelas
Australian Petroleum Production & Exploration Association (APPEA) Journal
... velocity variations of the major geological units whilst maintaining the depth consistency at the intersection location of all the 2D lines in both dip...
2021
S-wave velocity model building using PP-PS tomography with dynamic warping
Terence Krishnasamy, Ronaldo Florendo, Aravind Nangarla, Carsten Udengaard, Prajnajyoti Mazumdar, Kevin Searles, Bjorn Olofsson, James Gaiser
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocity model for an existing deep-water ocean-bottom node (OBN) survey in the Gulf of Mexico. Introduction The water depth in the study area ranges...
2023
Rock Properties and Seismic Attributes Analysis of Chert Reservoirs in the Devonian Thirtyone Formation, West Texas
Dongjun Fu, Charlotte Sullivan, Kurt Marfurt, Joel Famini, Peter Wang
West Texas Geological Society
... limestones and thin-laminated cherts (Figure 8 & 9). Figure 8. P-wave velocity vs. porosity showing a linear relationship. Vpd, Vpo, and Vpw are P-wave...
2004
All that wobbles isnt necessarily azimuthal anisotropy
Helen Debenham, Jennifer Badry, Mohamed Megebry
Petroleum Exploration Society of Australia (PESA)
... rather than the depth of present-day burial. Hence there can be large velocity contrasts across these faults. Figure 4 shows the two-way-time (TWT...
2019
Geometric and seismic interpretation of the Perdido fold belt: Northwestern deep-water Gulf of Mexico
Rion H. Camerlo, Edward F. Benson
AAPG Bulletin
... in 1996. Data quality significantly improved by the late 1990s, especially the imaging and recording of data to much greater depth (traveltime...
2006
Abstract: Computing Gridded Traveltimes from the Random Locations of Three Known Points; #90211 (2015)
John Bancroft and Xiang Du
Search and Discovery.com
... [email protected] and Xiang Du University of Calgary, Calgary, Alberta, Canada Abstract Gridded traveltimes are an integral part of Kirc hhoff depth...
2015
Addressing the complex near-surface challenges in the Delaware basin through recent FWI advancements
Ali Mohamed, Dmitry Kulakov, Daniel Suren, Wilfrid Milan, Larry Holifield, Vasudhaven Sudhakar
International Meeting for Applied Geoscience and Energy (IMAGE)
... a high velocity layer system, in addition to the strong lateral velocity variation due to evaporite dissolution which is known as Cenozoic fill...
2022
Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon
Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the target events for FWI. This area is characterized by fast velocity bodies located in the shallow to mid-depth region of the subsurface...
2022
Echo phone for direct attenuation indication
Lu Liu, Tong Fei, Fuhao Qin, Yi Luo
International Meeting for Applied Geoscience and Energy (IMAGE)
..., 2018, Near-surface velocity estimation using source-domain full traveltime inversion and early-arrival waveform inversion: Geophysics, 83, no. 4...
2022
Chapter Thirteen: 4-D Reservoir Monitoring
Alistair R. Brown
AAPG Special Volumes
... then differenced and these difference volumes sliced. One such velocity difference depth slice is shown in Figure 13-8, demonstrating in color the effect...
2011
Structural Features of the Crystalline Basement of the Volgograd Area on the Volga in Connection with Evaluation of the Oil-Gas Prospects of the Devonian Clastics
O. D. Kazantsev, V. N. Khlystova, L. M. Naydis
Petroleum Geology: A Digest of Russian Literature
... basement and constructed from linear traveltime curves: a-surface of the basement of Proterozoic age (provisional); b-surface of the basement of Archean...
1962
Generalized internal multiple elimination
Dongliang Zhang, Constantinos Tsingas, Mohammed S. Almubarak
International Meeting for Applied Geoscience and Energy (IMAGE)
... with traveltime 𝑡1 ; trace ② is reflected from the reflector point b at depth 𝑧2 with traveltime 𝑡2 and trace ③ is reflected from reflector...
2022
Extended full-waveform inversion to improve the subsalt imaging in GOM
Guojian Shan, Jingru Chen, Zhemin Tan, John Chen, Yue Wang, Xiaoting Lou, Jennifer Zhang, William Lester
International Meeting for Applied Geoscience and Energy (IMAGE)
...-skipping arises from an inaccurate initial velocity model, causing a discrepancy in traveltime beyond half the wavelength of the given frequency...
2024
Seismic expressions of a Miocene prograding carbonate margin, Mut Basin, Turkey
Xavier Janson, Gregor P. Eberli, Florence Bonnaffe, Fabrice Gaumet, Vincent De Casanove
AAPG Bulletin
... for building the ray-tracing impedance model (Figure 7).Figure 7. Velocity model in depth used for ray-tracing methods. This section follows the projection...
2007
Computation of phase velocity direction using normalized wavefields
Kwangjin Yoon, Jungkyun Hyun
International Meeting for Applied Geoscience and Energy (IMAGE)
...Computation of phase velocity direction using normalized wavefields Kwangjin Yoon, Jungkyun Hyun Computation of phase velocity direction using...
2024
Pre- and Post-Injection Vertical Seismic Profiling over the Southwest Regional Partnerships Phase II Fruitland Coal CO2 Pilot; #80104 (2010)
Tom Wilson, Les Nutt, Ric Smith, Jitendra Gulati, Marcia Coueslan, Dwight Peters, Art Wells, Craig Hartline, George Koperna, Bill Akwari
Search and Discovery.com
... is complex and reflection discontinuity common. An isopach of the Fruitland sequence (D) reveals considerable variation in traveltime through the Fruitland...
2010
Time-Lapse Refraction Seismic II: Field Examples
Martin Landrø, Lasse Amundsen
GEO ExPro Magazine
... phase changes between frozen and unfrozen material over time. A significant limitation is the low penetration depth due to strong velocity contrasts...
2017
Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals
Mike Perz, Josef Heim, Candace Bruins
Unconventional Resources Technology Conference (URTEC)
...Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals Mike Perz, Josef Heim, Candace Bruins URTeC: 399...
2019