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The AAPG/Datapages Combined Publications Database
Showing 1,447 Results. Searched 201,049 documents.
Efficient physics-informed Bayesian inversion of VSP and hydrofrac data
Tian Qiao, George Turkiyah, Gerard T. Schuster
International Meeting for Applied Geoscience and Energy (IMAGE)
... a region of size 1-2 wavelengths around the migration point. 3. For imaging of point sources, the traveltimes of direct rays from each gridpoint to each...
2022
The Contribution of Simple Seismic Modeling for Reef Distribution Mapping
Soetomo J.A., Bambang Santoso
Indonesian Petroleum Association
... time. II.3. Modeling Programs Most modeling programs are based on the ray tracing approach. They track the rays through the layers of the geological...
1985
A quantitatively determining gas saturation method by pulsed neutron logging technique in complex cased borehole
Guiping Xiao, Feng Zhang, Jilin Fan, Fangwei Tang, Wei Zheng Shang
International Meeting for Applied Geoscience and Energy (IMAGE)
... neutrons have been generated by D-T neutron source will scatter with the borehole and formation materials to generate inelastic gamma rays, which...
2022
Composition and Genesis of Temperate, Shallow-Marine Carbonate Muds: Spencer Gulf, South Australia
Laura G. O'Connell, Noel P. James
Journal of Sedimentary Research (SEPM)
... disintegrate into predictably sized particles or crystals. The rays on the mace-shaped ascidian spicules are commonly found broken off as 10–20 µm grains...
2015
Dual Origin of Basin and Range Faults
Gary W. Crosby
Utah Geological Association
... the refraction lines are ideally parallel to the strike of the valley fill-bedrock interface, and the refracted rays travel in the plane perpendicular...
1972
The Removable-Cap Suction Corer: An Inexpensive and Durable Device To Extract Unconsolidated, Wet Sediments
Alina Shchepetkina, Murray K. Gingras, S. George Pemberton
Journal of Sedimentary Research (SEPM)
... into the middle of the muddy core (Figs. 5C, D). Fig. 4. A schematic representation of a removable-cap suction corer. Fig. 5. Photos and X-rays...
2015
Assessing the Impacts of Scale Residues from Offshore Oil and Gas Decommissioning on Marine Organisms
Tom Cresswell, Sue Brown, Henri Wong, Simon Apte
Australian Petroleum Production & Exploration Association (APPEA) Journal
... and Internal X-rays/Gammas Beta radiation Alpha radiation 381 NORM Scale Corroded infrastructure on top of sediment (300-500 y) Exposure: External...
2021
Subsalt image optimization in the Gulf of Mexico combining sparse OBN and legacy streamer data
Hongyan Li, Ruoyu Gu, Jarrod Hutson, Di Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
... energy including diffractions, turning rays, and prismatic waves, which are essential in improving complex subsalt imaging. For this project, POIC...
2022
Velocity model building and imaging driven by FWI with dual-azimuth data in a complex salt environment: Brazil case study
Xu Li, Christine Gans, Young Ho Cha, Diwi Snyder, Gopal Palacharla, Vijay Gottumukkula, Yaofeng He, Hongchuan Sun, Tetyana Vdovina, Xueyi Jia, Valeriy Brytik, Inmaculada Dura-Gomez
International Meeting for Applied Geoscience and Energy (IMAGE)
... inherent limitations: it often loses rays in the complex structure zones during round trip migrations, and results in spikes at sharp surface turning...
2022
Preventive Medicine and Health in Venezuelan Oil Fields
E. P. De Bellard
AAPG Bulletin
.... The heat is tempered by the constant play of the trade winds, and the sun rays are devoid of the deadly properties they possess in India and Africa...
1927
Standards of Fitness for Offshore Employment
Donald G. Dawson
Indonesian Petroleum Association
... function. Audiometry and chest x-rays are carried out onshore, these examinations are performed according to the following regime. Under 40 years of age...
1989
Where's the Data? Acquisition and Processing of Seismic Data in the PNG Highlands
Subhash Chandra, Geoff Mansfield, Peter Carver
Petroleum Exploration Society of Australia (PESA)
... reconstruction method: Geophysics, 57, 378-385. Ammon, C. J., and J. E. Vidale, 1993, Tomography without rays: Bulletin of the Seismological Society...
2015
A new calculating formation porosity method using PNC logging technology in cased wells
Hui Zhang, Feng Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... neutron instrument uses a D-T source with an energy of 14 MeV, and detects gamma rays with two LaCl3 detectors near and far, at a source distance of 32...
2022
Seismic Imaging and Interpretive Model Building in the Colombian Andes
Rob Vestrum
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... by the depthmigrated seismic section. The rays shown in the figure are calculated for use in image-gather diagnostics. strata. We also encounter lateral-velocity...
2006
Coal as a Rock
John C. Crelling, Russel R. Dutcher
Special Publications of SEPM
... - the - low temperatures are employed to avoid destroying the actual mineral structures. New techniques involving low angle x-rays are being pursued...
1980
Paleozoic Palynomorphs From Libya
John L. Wray
Special Publications of SEPM
... These have a relatively broad membranous equatorial flange with the trilete rays extending to the outer edge of the flange Devonian rocks also contain...
1964
Integrated 3D Seismic Data Modeling and Processing Methodology for Structural Model Analysis: Case Study
T. Salinas
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... changes on the 3D rays at the foothills are generated by typical geometrical changes observed on the structural surface such as curvature and due to strong...
2006
3D Facies Modeling of SS-44 Mixed Load Channel Reservoir, Karmila Field, Sunda Basin, South East Sumatera
M. Reza Widiatmo, Undang Mardiana, Febriwan Mohamad, Asep Ginanjar
Indonesian Petroleum Association
... of logs especially Gamma Rays (GR), showed that there are three log patterns, blocky, funnel and bell (Walker, 1992). Blocky gamma ray log pattern...
2013
Sequence Stratigraphy and Facies Analysis of Muara Enim Formation to Predict Prospecting Area in TAC Pertamina Pilona Petro Tanjung Lontar
Bily Angraini, Togi Yonathan S.
Indonesian Petroleum Association
... that in a lobe there is a change in value of gamma rays in wells C. 49, C. 48, C. 38, C. 50, C. 41. In wells C. 38, C. 50, and C. 41, a gamma ray value...
2011
Optimizing seismic survey design for frontier exploration in Cyprus salt basins
Chris Tapie, Valeriy Brytik, Shangli Ou, Lindsey Donaldson, Ares Ouzounis, Ivan Fabuel-Perez, Maxime Guillois, Daniel Eke, Sunwoong Lee, Mahir Khalil, Gita Febriany, Luigi Pastore
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the survey design stage to ensure successive exploration activities. Figure 5. Illustration of diving wave ray paths. Due to subsalt velocity inversion, rays...
2023
PP-PS depth-domain AVA inversion
Maud Cavalca, Robin P. Fletcher
International Meeting for Applied Geoscience and Energy (IMAGE)
... to migrate PS data. Under a local plane-wave approximation, rays offer a very easy and cost-effective way to compute PSFs for seismic modelling and survey...
2023
A denoising diffusion probabilistic modeling (DDPM) approach for predicting CO2 plume evolution from seismic shot gathers
Alexander Y. Sun, Zi Xian Leong, Tieyuan Zhu
International Meeting for Applied Geoscience and Energy (IMAGE)
...-wave velocity model was derived from 2D extrapolation of logs acquired in the injection well with a local dip determined from gamma rays...
2023
Predicting Formation Target Depth Ahead of the Bit with High Accuracy: A Case Study from the Arun Field for a Deviated Well
William L. Soroka
Indonesian Petroleum Association
... that by increasing the offset of the second VSP source, it is possible to get rays reflecting off the Top Arun interface ahead of the bit where the image...
1996
Storm Deposited Fish Debris in the Cretaceous Mowry Shale Near Vernal, Utah
Alvin D. Anderson, Bart J. Kowallis
Utah Geological Association
..., B. J., and Farish, R. F., 1993, The collectors guide to fossil sharks and rays from the Cretaceous of Texas: Dallas, Horton Printing Company, 204 p...
2005
First arrival enhancement by statics preserving filtering using surface-consistent constraints
Alejandro Quiaro, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... be built when the assumption of rays sharing a stationary point is met (which is not valid for diving waves, for example). Another way to approach...
2023