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The AAPG/Datapages Combined Publications Database
Showing 20,641 Results. Searched 200,630 documents.
Innovative Modeling to Quantify the Impact of Natural Fractures, Optimize Well Spacing and Increase Productivity in the Marcellus Shale
Farid Mohamed, Dolapo Otulana, Ivan Salazar, Han Xue, Li Fan, Dan Shan, Jim Bennett, Kabiru Abubakar, Kyle Barrie, Bryce Yeager, Marcia Simpson, Creties Jenkins
Unconventional Resources Technology Conference (URTEC)
... spacing decreasing (in a linear manner) to 35 feet with increasing velocity anisotropy. Similarly, spacing for the J2 set is reduced from 75 feet...
2021
Image-Based Modeling of Flow in Natural Partially Cemented Fractures
Adenike Tokan-Lawal, Masa Prodanovic, Peter Eichubl
Unconventional Resources Technology Conference (URTEC)
...0, 𝜙 𝑥, 𝑡 𝑔𝑖𝑣𝑒𝑛 where 𝑢 is the external velocity field, i.e. if 𝑢 = 𝐹𝑛 = 𝐹 ∇! |∇!| (8) , we will obtain equation (7). In LSMPQS, we assume capillarit...
2013
Machine learning-based residual moveout picking
Farhad Bazargani, Wenjun Zhang, Anu Chandran, Zaifeng Liu, Harry Rynja
International Meeting for Applied Geoscience and Energy (IMAGE)
...) in depth migrated seismic gathers provides information on the accuracy of the migration velocity model (Woodward et al., 1998; Adler et al., 2008...
2022
Application of phase stabilization Q migration in comprehensive evaluation and identification of tight-reservoir
Yi Bao, Hai-Bo Zhao, Xu Liu, Xiao-Wei Guan, Xin-Yue Song, Cheng Wang, Zai-Jin Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... information related to the ray path is stored as the imaginary part. The apparent dip gather in the depth domain is calculated using the following formula...
2024
Successful Implementation of High Viscosity Friction Reducers from Laboratory to Field Scale: Middle Bakken Case Study
Mohammed Ba Geri, Abdulaziz Ellafi, Bruce Ofori, Ralph Flori, Huosameddin Sherif
Unconventional Resources Technology Conference (URTEC)
... the range of typical velocity of field operations (Sahai et al., 20144; Osiptsov, 2017). Two types of fracturing fluids HVFR (1 gpt or 6 gpt) and linear...
2019
Checkshots and Vertical Seismic Profiles: Part 7. Geophysical methods
B. A. Hardage
AAPG Special Volumes
.... To understand reservoir performance, the boundaries of these units need to be mapped in depth. Thus, the concept of the velocity checkshot survey has been...
1992
The Wedge Model Revisited; #41545 (2015)
Joanna K. Cooper, Don C. Lawton
Search and Discovery.com
... ray tracing results, to identify the travel times and modes of observed events. These models are analogues of high velocity wedges of carbonate rocks...
2015
Anisotropic full-azimuth velocity model building using joint reflection-refraction tomography
Matan Shustak, Itai Sharabi, Orly Kletenik-Edelman, Elive Menyoli, Ike Imala, Ronit Levy, Zvi Koren
International Meeting for Applied Geoscience and Energy (IMAGE)
... that this tomography can provide high-resolution anisotropic velocity models and subsequent accurate depth migration images. The method has been successfully applied...
2022
Seismic Exploration Using Shear Waves
R. Garotta
Indonesian Petroleum Association
... Velocity These seismic and resistivity logs show good homogeneity of the layer between 1.2 and 1.45 km depth. Thus, these limits have been chosen...
1978
Physical and Chemical Properties of Mississippi River Alluvial Valley and Delta Clays: ABSTRACT
Sherwood M. Gagliano, Clara Ho
AAPG Bulletin
..., reflecting velocity decrease, water-depth increase, salinity increase, and mixing with shelf clays. Clays become more kaolinitic, less calcium saturated...
1968
Hurricane Impact Analysis of a Louisiana Shallow Coastal Bay Bottom and Its Shallow Subsurface Geology
Angelina M. Freeman, Harry H. Roberts, Patrick D. Banks
GCAGS Transactions
... ¼ cm per year. However, some of the box cores which show mixing in the X-ray radiographs have correspondingly non-linear Excess 210Pb activity-depth...
2007
Application of Common Contour Binning (CCB) and Back Propagation Neural Network (BPNN) for Oil Water Contact Prediction in Carbonate Reservoir (The Case Study at G404 Field)
Wahyu Tri Sutrisno, Septian Prahastudhi, Ayi Syaeful Bahri, Yulia Putri Wulandari
Indonesian Petroleum Association
... porosity-density from log data. We used the Gardner equation to determine velocity from density. The resulting seismic response model indicated...
2013
Effect of Mineralogy on NMR, Sonic, and Resitivity: NMR, Sonic, and Resistivity: A Case Study of the Monterey Formation
Saul Rivera, Manika Prasad
Unconventional Resources Technology Conference (URTEC)
... by the M-modulus. The equation for Mmodulus is as follows: is the compressional velocity in (km/s). where is the grain density in g/cm3...
2014
Evolution of Porosity and Permeability in the Lower Cretaceous Travis Peak Formation, East Texas (1)
SHIRLEY P. DUTTON and TIMOTHY N. DIGGS
AAPG Bulletin
...------------------------------ exists at any given depth; the 95% prediction interval about the linear regression line of log porosity is shown in Figure 4. At a depth of 10,000 ft (3050...
1992
Shaly Sand Analysis Case Studies: Chapter 5
George B. Asquith
AAPG Special Volumes
...). The logging suite for the well is an electric ISF-sonic log (Fig. 31) plus a gamma ray density log (Fig. 32). Therefore, the shaly sand equation you...
1990
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)
... problem can be transformed into the Bayesian inversion problem by taking the weighted negative exponential of equation 2 to get the posterior probability...
2022
Diagenesis of Gulf Coast Clayey Sediments and Its Possible Relation to Petroleum Migration
John F. Burst
AAPG Bulletin
.... Lattice mixing in Wilcox (Eocene) sediments. X-ray patterns show progressive loss of expandable material with depth. End_Page 75...
1969
Comparison of Marcellus Fracturing Using Azimuthal Seismic Attributes Versus Published Data From Outcrop Studies
Tanya L. Inks, Terry Engelder, Jacki S. Hocum, Bruce Golob, Darien O'Brien
Unconventional Resources Technology Conference (URTEC)
... and depth scales shown are for local datums. Azimuthal Anisotropy Seismic anisotropy refers to variation in elastic wave propagation velocity...
2014
Exploring the Sub-Salt Play in the Frontier Amadeus BasinInsights from Regional 2D Seismic and Potential Field Data
Emma Hissey, Jennifer Clifford, Tim Debacker
Petroleum Exploration Society of Australia (PESA)
... with a different processing stream. The velocity model was built in several steps, from initial stacking velocities through to the final depth interval velocity...
2016
Sealing by Shale Gouge and Subsequent Seal Breach by Reactivation: A Case Study of the Zema Prospect, Otway Basin
Paul J. Lyon, Peter J. Boult, Richard R. Hillis, Scott D. Mildren
AAPG Special Volumes
... depth migration seismic data for the area, a laterally invariant velocity function was applied to the time-migrated seismic data to convert it to seismic...
2005
Qualitative Seismic Attribute in Drilling Oil and Gas Development Wells, Kerisi Field, Natuna Sea, Indonesia
Yasril Kahar, Vaughn L. Ball, Sunil K. Shalia
Indonesian Petroleum Association
... to Pvelocity “g” is Gardner’s exponent P and S wave reflection coefficients angle stack response at angle theta Then, we express it as a linear equation, so...
2008
Where Is My Horizontal Well? Use of Borehole Seismic Where Velocities Vary Laterally
Agus Muharam, Frank Musgrove
Indonesian Petroleum Association
... location relative to the top reservoir and the overburden velocity for depth conversion. Examples from onshore North Sumatra illustrate the ideal...
1998
Innovative Approach for Estimating Organic and Inorganic Porosity in Organic Shale Reservoirs: A Case Study in the Vaca Muerta Formation
Ezequiel F. Lombardo, Haijing Wang, Sergio Cuervo, Luisa Crousse
Unconventional Resources Technology Conference (URTEC)
... relatively slowly (Allen et al., 2013). Therefore, there is a common porosity-depth URTeC 4263994 5 equation for a given lithology. Fine-grained...
2025
Case History Study of Seismic-Driven 3-D MEM Calibrated with 1-D MEMs and Petrophysics in Arkoma Basin, Oklahoma
Vivek Swami, Julio Tavares, Vishnu Pandey, Tatyana Nekrasova, Dan Cook, Jose Moncayo, David Yale
Unconventional Resources Technology Conference (URTEC)
...) was estimated using the following equation: = −( − )∙ _ The normal velocity trend (VP_trend) and the exponent “a” were calibrated during...
2019
Least Square Q-Kirchhoff Migration: Implementation and Application
Xiaodong Wu, Yi Xie, Joe Zhou, Dechun Lin, Yu Wang
Petroleum Exploration Society of Australia (PESA)
.... Xie et al. (2009) proposed Q pre-stack depth migration (QPSDM) which compensates for absorption during migration by fully honouring ray paths, however...
2018