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The AAPG/Datapages Combined Publications Database
Showing 5,197 Results. Searched 200,635 documents.
Efficient and accurate velocity building from Gramian-constrained multiphysics reflection and transmission data
Jide Nosakare Ogunbo
International Meeting for Applied Geoscience and Energy (IMAGE)
..., the use of the convolutional model (Buland and Omre, 2003), by the z-transform, is readily more practical than the seismic operator for either...
2022
Pleistocene History of Lower Jordan Valley, Utah
Ray E. Marsell, Daniel J. Jones
Utah Geological Association
... knowledge of them must continue to be, as it now is, the inverse order of their antiquity. The great importance of the chapter on the latest period lies...
1955
A Stratigraphic Log of Semantan Formation along Part of the Mentakab-Temerloh Bypass, Pahang
I. Metcalfe, K. R. Chakraborty
Geological Society of Malaysia (GSM)
... The coarse and fine-grained tuffs in the sequence exhibit graded bedding most commonly of normal type (fining upwards) but also of inverse type (coarsening...
1994
Gas Field Development Planning Using Reservoir Model
Entang Hadisasmita
Indonesian Petroleum Association
... of the stabilized deliverability curve Pcell = cell pressure, psi. Pwf = Flowing bottomhole pressure, psi n = Exponent which describes the inverse...
1985
Tectono-Stratigraphic Controls on Deltaic Reservoir Architecture and Recovery Response in Foreland Basins
Noel Tyler
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... decrease if the system is tide-dominated. The inverse of recovery efficiency is reserve growth potential (fig. 4). Clearly, the complex reservoirs...
1994
Upper Cretaceous Sedimentation and Tectonics with Reference to the Eocene, San Miguel Island, and San Diego Area, California
William A. Bartling, Patrick L. Abbott
Pacific Section SEPM
... conglomerate units are d; sorgani zed, norma 11y graded, inverse to norma 11y graded and imbricated. In one case, cross-bedding is evident (Figure 6A...
1983
Azimuthal AVO Gradient Anisotropic Analysis on Prediction of Fractures on Barnett Shale
Shiguang Guo, Bo Zhang, Tengfei Lin, Kurt J. Marfurt
Unconventional Resources Technology Conference (URTEC)
... f t his pape r ha v e n ot be en re vie we d b y U RT eC a nd U R Te C d oe s no t wa rr ant th e ac c ur a c y, reliabilit y, or tim eline...
2013
Assessing FWI imagings potential to tackle illumination issues and internal multiples in the Brazilian presalt
Cyril Dolymnyj, Filipe Rudrigues, Amanda Porto, Leandro Galves, Asdrubal Ovalles
International Meeting for Applied Geoscience and Energy (IMAGE)
... (Wang et al., 2016). It was chosen because it gives a better approximation to the inverse Hessian, due to the extra degree of freedom...
2022
From exploration to diagnosis: Can geophysicists revolutionize healthcare?
Chuck Peng, Maurice Nessim
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Pirshafiery, and J. Klock, 2020, Full wave 3D inverse scattering transmission ultrasound tomography in the presence of high contrast: Nature, 10, 1–4, doi...
2022
Case Study: Geomechanical Analysis in Batanghari Block, Jambi Sub-Basin
Zha Chaoyang, Shen Shuirong, Pei Daqing, Shen Weifeng
Indonesian Petroleum Association
... ) τ xy = E 2(1 + ν ) τ xz = E 2(1 + ν ) τ yz = E (6) And the inverse is: σ x = 2Gε x + λθ , τ xy = Gγ xy σ y = 2Gε y + λθ , τ yz = Gγ yz σ z...
2010
Application of improved shearlet transform algorithm in noise filtering of complex fault block oilfield in eastern Bohai Sea
Yu Xiong, Cai Li, Yongqiang Yao, Shaoxuan Li, Lei Gao
International Meeting for Applied Geoscience and Energy (IMAGE)
... by the threshold, and then the seismic data suppressing random noise is obtained by using the inverse shearlet transform. The shearlet global...
2022
Geophysical Investigation for Groundwater Exploration at UKM's Kuala Pilah Matriculation Centre, Negeri Sembilan
Abdul Rahim Samsudin, Abdul Ghani Rafek, Umar Hamzah
Geological Society of Malaysia (GSM)
.... The resistivity data were processed and interpreted by using a resistivity computer programme (Resix v.2.0, 1990). Resix is a forward and inverse...
1996
Identifying mass transport deposits using image logs and core in Bone Spring and Wolfcamp Formations, Delaware Basin: Implications for mapping, facies distribution, reservoir properties, and unraveling subsurface chaos
Joshua J. OBrien, Jarret M. Borell, Chris Bowie, Erik P. Kvale
International Meeting for Applied Geoscience and Energy (IMAGE)
... structures Contorted bedding Overturned beds o Inverse graded beds Repeated beds Exotic clasts Presence of matrix or carbonate rock fragmented...
2022
Full-elastic AVA extraction using acoustic FWI
Michael Warner, John Armitage, Adrian Umpleby, Nikhil Shah, Henry Debens, Fabio Mancini
International Meeting for Applied Geoscience and Energy (IMAGE)
..., or we can transform the information there into the more familiar form of Figure 4 before extraction; Figure 5 demonstrates this. The transformation...
2022
Geophysical Investigations of the Hot Spring Occurrences in the Sungei Serai and Kampung Dusun Tua Areas, Hulu Langat, Selangor
Mohd Anuar Md. Razali
Geological Society of Malaysia (GSM)
... is a function of conductivity (the inverse of resistivity), size and shape of the conductor. The decaying currents generate a proportional (secondary) magnetic...
1998
Reducción del Riesgo Exploratorio en Cuencas Subandinas: Ejemplos en Cuencas Colombianas [PAPER IN SPANISH] Exploratory Risk Reduction in Sub-Andean Basins: Examples in Colombian Basins
Olaya Lopez, Ivan Dario
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
...Reducción del Riesgo Exploratorio en Cuencas Subandinas: Ejemplos en Cuencas Colombianas [PAPER IN SPANISH] Exploratory Risk Reduction in Sub-Andean...
2000
A method of relative impedance holography-inversion based on reflection coefficient inversion
Jiangfeng Zheng, Jialin Sun, Zongyu Zhen, Shaoxuan Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... Castagna et al. proposed the reflection coefficient inversion method, which can inverse the formation reflection coefficient directly by the seismic data...
2022
Time-lapse attenuation variations during CO2 injection using DAS VSP data from the CaMI Field Research Station, Alberta, Canada
Yichuan Wang, Donald C. Lawton
International Meeting for Applied Geoscience and Energy (IMAGE)
... trace and stacking their waveforms. This method is straightforward and requires no sophisticated inverse algorithm. It is data-driven and applied...
2022
The Mississippian-Jurassic Unconformity Near Nordegg, Alberta
D. M. Cruden, H. A. K. Charlesworth
CSPG Bulletin
... is the precision parameter. The precision parameter is the three-dimensional analogue of the inverse of the variance, such that the lower the dispersion...
1966
A case study using FWI to image pre-Messinian target in the East Mediterranean Sea
Jyoti Kumar, Marcus Bell, Tamer Darwish, Mai Ahmed, Mahmoud Ahmed, Moataz Ahmed
International Meeting for Applied Geoscience and Energy (IMAGE)
..., Application of RTM inverse scattering imaging conditions: 82nd Annual International Meeting, SEG, Expanded Abstracts. Widmaier, M., and Ø. Lie, 2016...
2022
Finite Difference Modelling: Part III: Time-Step n-Tupling
Lasse Amundsen, Ørjan Pedersen, Martin Landrø
GEO ExPro Magazine
... and the third oldest university in the English-speaking world. Today, Gregory’s series is known as the infinite Taylor series expansion of the inverse...
2018
Origin and Development of Globorotalia (Turborotalia) Pachyderma (Ehrenberg)
Orville L. Bandy
GCAGS Transactions
... such as the typical dutertrei). In G. (T.) pachyderma there is an inverse correlation of chambers per whorl with size; in the N. dutertrei group...
1971
RTM method of prismatic-waves under the undulating surface: A case study of the Longmen Piedmont
Bo Ma, Yingming Qu, Zhenchun Li, Jianggui Zhu, Chang Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... and applied by many scholars. The purpose of this method is to transform the reverse time migration in the Cartesian coordinate system into the undulating...
2022
Eolian Structures and Textures in Oolitic-Skeletal Calcarenites from the Quaternary of San Salvador Island, Bahamas: A New Perspective on Eolian Limestones: Chapter 17
Mario V. Caputo
AAPG Special Volumes
... that foreset laminations and inverse grading are not clearly discernible. Consequently, the thin, even, cyclic nature of the bedding may be the only...
1993
Forensic GPR anti-human landmine accurate detection by Gramian constrained joint inversion of the monostatic reflection and transmission radargrams
Jide Nosakare Ogunbo, Changsoo Shin, Sang-Wook Kim, Sang-Hyun Kim
International Meeting for Applied Geoscience and Energy (IMAGE)
... and transmission radargrams simulated over buried anti-human (non-conductive) landmines with the Gramian constraints. Firstly, the z-transform method...
2022