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The AAPG/Datapages Combined Publications Database
Showing 2,791 Results. Searched 195,387 documents.
Sphericity Determinations of Pebbles and Sand Grains
Willard D. Pye, Margaret Hurst Pye
Journal of Sedimentary Research (SEPM)
... will be identical with that given by Wadell's projection method. The proof of this follows: By definition wg= [dN]/[Dc] where wg is the Wadell projection...
1943
Critical Analysis of Stack Seismic Systems
L. E. Nugent, Jr.
AAPG Bulletin
... of refraction, [EQUATION] Fig. 2. Same as Figure 1, except that reflectors dip 10°. For simplification only 5,000-foot surface distances and center points...
1967
The Australian CCS Roadmap A Reflection on Lessons Learned and Considerations for Future Success
Jerome Paz
Australian Petroleum Production & Exploration Association (APPEA) Journal
... needed to enable proof of concept, capture learnings and implement future large-scale commercial phases. Today, a combination of private and public...
2021
Implications from Transfer Functions when Comparing Seismic Data from MEMS Accelerometers and Geophones
Michael S. Hons
Search and Discovery.com
... a transfer function directly from the damped simple harmonic oscillator equation. Geophones use magnetic induction to transform the proof mass motion...
Unknown
Implications from Transfer Functions when Comparing Seismic Data from MEMS Accelerometers and Geophones
Michael S. Hons
Search and Discovery.com
... a transfer function directly from the damped simple harmonic oscillator equation. Geophones use magnetic induction to transform the proof mass motion...
Unknown
Graphic Solution of Strike and Dip from Two Angular Components: DISCUSSION
M. King Hubbert
AAPG Bulletin
... deserving of the simplest and most nearly fool-proof method of solution that can be found. Two interesting discussions have already appeared in this section...
1931
Subsurface Fault Throw: A Reply
Luis M. Banks
Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)
... proof, thus violating the most elementary principles in the code of professional ethics, but because Rod's professional standing might lead...
1959
Accelerometer vs. Geophone Response: A Field Case History
Search and Discovery.com
.... For a geophone, the velocity of the proof mass relative to the acceleration of the ground can be found from the simple harmonic oscillator equation and used...
2013
Ultra-Long Offsets Signal a Bright Future for OBN
Duncan Bate, Mike Perz, TGS
GEO ExPro Magazine
... is the latest proof positive of this. This ultra-long offset sparse node survey was optimized to acquire full azimuth 40 km offsets, one of many industry...
2021
Slope Readjustment During Sedimentation on Continental Margins: Environmental Processes: Model Investigation of Margin Environmental and Tectonic Processes
G. C. Dailly
AAPG Special Volumes
... patches ABC called turbidity infilling in Figure 5). This time span depends on the size of the turbiditic infilling and the rate of supply of sediments...
1982
7.0 The Structural Significance of Seismic Velocity - A Progress Report
P. E. Gretener
AAPG Special Volumes
... Reservoirs Encased in Shale; Geophysics, 39/6, p. 759-769. Donath, F. A. and Kuo, J. T., 1962, Seismic-Refraction Study of Block Faulting, South Central...
1981
A Unified Leak-off and Flow-back Model for Fractured Reservoirs
Dylan Copeland
Unconventional Resources Technology Conference (URTEC)
..., by a standard parabolic equation of the form ( ) (1) Here, denotes pressure, and are material parameters. For example, in the case of slightly compressible...
2014
Leaky Transform Faults and Terrane Migration During Seafloor Spreading
Zhang Fuqin, Ma Ruishi, Dong Huogen
Circum Pacific Council Publications
... steep boundaries. Seismic refraction studies show that oceanic crust near transform faults is heterogeneous. Such crust is typically thinner than...
1990
Non-First-Break Solution for Shallow Velocity Anomaly Problem; #41602 (2015)
Emil Blias
Search and Discovery.com
... model. The proof is based on an approximate formula derived by Blias (2005a, 2005b) for the NMO velocity: Here Vm is an interval velocity in the mth...
2015
EVIDENCE FOR NON-COLLISION GEOLOGY IN THE MIDDLE EAST
M.S. Kashfi
Journal of Petroleum Geology
... of the Middle East, as remnants of oceanic crust. However, the mere presence of an ophiolite belt by itself is not proof that it is the site of a former...
1988
Estimation of Arithmetic Permeability from a Semi-Log Porosity/Log10 Permeability Regression; #41583 (2015)
Gregory Benson
Search and Discovery.com
... found far easier to comprehend than the mathematical proof. The empirical equation STD scalar of 1.1434 was quite close to the correct theoretical...
2015
The Pre-Drill Prediction Toolbox
Kim Gunn Maver
GEO ExPro Magazine
... Reservoir Reflection seismic CSEM Seismic reflection to CSEM and vice versa Refraction seismic Overburden Induced polarisation Surface...
2019
Estimation of Reserves of Natural Gas Wells by Relationship of Production to Closed Pressure
Paul Ruedemann , Ionel Gardescu
AAPG Bulletin
.... It remains to prove that so simple a relation does not exist in nature. As a portion of the proof depends upon the purpose and type of decline curve...
1922
Techniques in Photogeology
Louis Desjardins
AAPG Bulletin
... on a basis of End_Page 2298------------------------------ characteristics associated with faults, reserving the matter of proof or disproof...
1950
Formation of Hydrocarbons from Fatty Acids by Alpha-Particle Bombardment
C. W. Sheppard , W. L. Whitehead
AAPG Bulletin
... by the formula RCOOH in which the carboxyl group has the structure [EQUATION]. The group R may be a straight chain, alkyl group as in the saturated fatty acids...
1946
Application of Visco-Acoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data, #41802 (2016).
Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones
Search and Discovery.com
.... In order to fully resolve the compartmentalized nature of the gas bodies, a wave equation-based method to derive the Earth model is required. Many current...
2016
Arithmetic Means of Circular Data
William H. Wood, Rhoda M. Wood
Journal of Sedimentary Research (SEPM)
... of symmetries of points on a circle and shows their number to be finite. Proof of the theorem will be found in the appendix. When z is a mean of type (1...
1966
Pattern Recognition in a Digital Age: A Gameboard Approach to Determining Petrophysical Parameters; #40929 (2012)
Daniel A. Krygowski and Robert M. Cluff
Search and Discovery.com
... log interpretation to quantitative log analysis through an equation that required parameters which were not available from logs, and which, in the time...
2012
Further Notes on the Origin and Nature of the Currie Structure, Navarro County, Texas
Frederic H. Lahee
AAPG Bulletin
..., as well as fault abc. For simplicity, we have shown dc and ce as one and the same fault. In Figure 4, logs 5 to 8 inclusive, have the chalk...
1926
Abstract: 3D Multiphysics Technology for Accurate Geothermal Resource Exploration
Max A. Meju
Geological Society of Malaysia (GSM)
... to maximize accuracy and reduce uncertainty in decision-making with subsurface models. (A) Concept and mathematical algorithm. (B) Proof-of-concept using...
2023