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The AAPG/Datapages Combined Publications Database
Showing 20,641 Results. Searched 200,630 documents.
The Next Generation of Microseismic Imaging
Marc-André Lambert, Paul West
GEO ExPro Magazine
... by a ray tracing-based travel time inversion. Many microseismic data processing workflows still apply this method. It is overdue for an update. GEO...
2012
Compression behavior of hydrate-bearing sediments
Yi Fang, Peter B. Flemings, John T. Germaine, Hugh Daigle, Stephen C. Phillips, and Josh O’Connell
AAPG Bulletin
... of 112 µm) and logged for density and velocity (Figure 1). In the x-ray images, more highly attenuative, denser material appears darker than the less...
2022
Thermal Maturation by Vitrinite Reflectance of Woodford Shale, Anadarko Basin, Oklahoma
Brian J. Cardott , Michael W. Lambert
AAPG Bulletin
... of Reflectance vs. Depth Table 4. Predictions of Vitrinite Reflectance and Reflectance Gradient from Linear Regression Equation End_Page 1992...
1985
Four-component dipole shear-wave reflection imaging in high-angle wells
S. Q. Li, X. M. Zhang, C. X. Zhuang, Q. Wang, H. L. Xiao, X. M. Tang
International Meeting for Applied Geoscience and Energy (IMAGE)
... the true vertical depth (TVD)). By describing the well trajectory as the connection of linear Fourth International Meeting for Applied Geoscience...
2024
Devonian Woodford in Oklahoma: Log Analysis and OGIP Determination in a Gas-Bearing Shale Using Standard Logging Suite
G. B. Asquith
West Texas Geological Society
... Water) Water Saturation using the Simandoux Shaly Sand Equation (Swsim) Gas-Filled Porosity (Φgas) = Φe * (1.0-Swsim) Permeability (k) in nannodarcies...
2010
Petrophysical properties of the Green Canyon Block 955 hydrate reservoir inferred from reconstituted sediments: Implications for hydrate formation and production
Yi Fang, Peter B. Flemings, Hugh Daigle, Stephen C. Phillips, P. Kevin Meazell, and Kehua You
AAPG Bulletin
...–1804 ft) from the high resistivity, high P-wave velocity, and low gamma-ray density values (D. McConnell et al., 2010; Boswell et al., 2012a, b...
2020
Application of Electrical Resistivity Measurements to Problem of Fluid Flow in Porous Media
M. R. J. Wyllie , M. B. Spangler
AAPG Bulletin
...: EQUATION (1) Where, ue = macroscopic velocity of flow, cm./sec. d = diameter of pipe, cm. P = pressure differential causing flow, dynes/cm.2 ^eegr...
1952
erformance of Seismic Arrays in the Presence of Weathering Layer Variations, #41841 (2016).
Jubran Akram, Abdullatif A. Al-Shuhail
Search and Discovery.com
... of the plane wavefront, Vw is the weathering layer velocity, b is the channel depth, and β is the angle of the line connecting the intersection point...
2016
Structural and time-lapse imaging through gas clouds via FWI at Eldfisk field, North Sea
Zhengxue Li, Leila Bencherif-Soerensen, Per Gunnar Folstad, Brian Macy, Simon Shaw, Baishali Roy
International Meeting for Applied Geoscience and Energy (IMAGE)
...-β’ (shown in Figure 1) at structure B; b) current FWI velocity model along line β-β’ (shown in Figure 1) at structure B; c) depth slice of legacy...
2023
Integrated Petrophysical Formation Evaluation Using Capture Spectroscopy and NMR on an Exploration Well, South Sumatra
ZhanGuo Shi, Mario Petricola, PingZai Wang
Indonesian Petroleum Association
... of the elements. At each depth, the linear combination of those standards is determined through a best-fit procedure, and elemental yields are obtained...
2005
Shale brittleness prediction using machine learning—A Middle East basin case study
Ayyaz Mustafa, Zeeshan Tariq, Abdulazeez Abdulraheem, Mohamed Mahmoud, Shams Kalam, and Rizwan Ahmed Khan
AAPG Bulletin
..., compressional wave velocity, gamma ray, and photoelectric absorption cross-section index) with mineralogy-based BI (Heidari et al., 2014; Lai et al...
2022
Abstracts: Challenges and Solutions in Locating and Interpreting Microseismic Events from Surveys in the Horn River Basin; #90173 (2015)
Ulrich Zimmer
Search and Discovery.com
... away but has an apparent smaller depth uncertainty caused by the use of direct waves and headwaves for the localization. Assuming that the velocity...
2015
Geophysical Log Responses to Variatons in Lithology in Borings Clino and Unda, Great Bahama Bank
E. Robert Warzeski, Leslie A. Melim, Robert N. Ginsburg
Special Publications of SEPM
... porosity and permeability Geophysical logs include gamma ray caliper density neutron sonic velocity and neutron of the data from the two borings porosity...
2001
Seismic Description of a Complex Carbonate Porosity System; Welch Field, Permian Basin, Texas
George P. Watts, Gregory D. Hinterlong, Archie R. Taylor
West Texas Geological Society
... to the porosity. A multiple variable transform equation was developed and porosity values were estimated at each seismic bin. The seismic-guided porosity map ties...
1998
A Comprehensive Approach to Water Volume Estimation in Unconventional Shale Reservoirs Through Physics-Informed Statistical Modeling
Bo Gong, Aygul Kostinovsky, Mehrnoosh Saneifar, Luisa Crousse, Mason Edwards
Unconventional Resources Technology Conference (URTEC)
... for consistent water-filled porosity in wells with standard triplecombo logging suites. Starting with Archie’s equation, we establish the square root of electrical...
2024
Deep bed filtration and formation damage by particles with distributed properties
Nastaran Khazali, Gabriel Malgaresi, Yuri Osipov, Ludmila Kuzmina, Pavel Bedrikovetsky
Australian Energy Producers Journal
... for single-property particles and obtain one upscaled equation. The upscaled equation for particle retention rate contains a non-linear function...
2024
The Spontaneous Potential (SP) Log
John H. Doveton
Special Publications of SEPM
... Ray API units lo00 Depth (feet) 1100 1200 1300 FIG. 13.--Spontaneous potential (SP) and gamma-ray logs of a Lower Cretaceous Dakota Formation...
1994
Abstract: Calculation of Amplitude and Velocity in General Anisotropic Media; #90224 (2015)
M. Malehmir and D. R. Schmitt
Search and Discovery.com
...Abstract: Calculation of Amplitude and Velocity in General Anisotropic Media; #90224 (2015) M. Malehmir and D. R. Schmitt Datapages/Search...
2015
Abstract: ERT and Seismic Tomography in Identifying Subsurface Cavities; #90172 (2014)
Grey I. Riddle, Craig J. Riddle, Douglas R. Schmitt
Search and Discovery.com
... velocity creating a defocusing of affect. With this information ray coverage can be used as an indicator for a tunnel, keeping in mind this requires dense...
2014
Heat Flow and Tectonics in the Western Ross Sea, Antarctica
D. K. Blackman, R. P. Von Herzen, L. A. Lawver
Circum Pacific Council Publications
... through Recent volcanics (Gonzales-Ferran, 1 9 8 2 ) indicates the presence of at least localized thermal anomalies, though the rather linear trace from...
1987
Integration of Geologic Model and Reservoir Simulation, Popeye Field, Green Canyon 116
Beth Yuvancic-Strickland, Eric Kuhl, Tin-Wai Lee, Benjamin Seldon, Peter B. Flemings, Turgay Ertekin
GCAGS Transactions
...-ray values, velocity, density, and the brightest amplitudes (Fig. 5C), which indicate the GM is cleaner here than elsewhere in the field. A sand body...
2003
Geomechanics Wellbore Stability Analysis in Successful Drilling of a Challenging HPHT Exploration Well in North Sumatra
Restio Brata, Muhamad Yanuar Mahardi, Apollinaris Stefanus Leo Anis, Fatrial Bahesti
Indonesian Petroleum Association
.... A vertical stress equation is given below where (b) is the bulk density, (Z) is true vertical depth and (g) is gravity. Gdyn 13474.45 1 4 Kdyn...
2018
Impact of Natural Fracture Induced Elastic Anisotropy on Completion and Fracturing Design in Different Shale Reservoirs
Emre Can Dundar, Aymen Alhemdi, Ming Gu
Unconventional Resources Technology Conference (URTEC)
... to that, different impacts on stress contrast (variation along the vertical depth) are observed for different shales, owing to the complex mineralogy/lithology...
2019
High frequency refraction/reflection full-waveform inversion case study from North West Shelf offshore Australia
David Dickinson, Fabio Mancini, Xiang Li, Kai Zhao
Petroleum Exploration Society of Australia (PESA)
... in depth; and (2) uncovers geological features beyond imaging: high-resolution FWI delineates small shallow anomalies and velocity boundaries across...
2018