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The AAPG/Datapages Combined Publications Database
Showing 44,912 Results. Searched 200,357 documents.
Horizontal Drainhole Drilling Techniques Used in Rocky Mountain Coal Seams
Terry L. Logan
Rocky Mountain Association of Geologists
... Mesaverde unit. The coal seam is at an average depth of approximately 5,500 feet (1,676 m) and is 16 to 20 feet (4.9 to 6 m) thick. The coal...
1988
Hydrodynamic effects on low-dip stratigraphic traps
S. A. Stewart
AAPG Bulletin
... to be the same as the free water level. Reservoir is used synonymously with an aquifer and porosity unit. Reservoir and nonreservoir are taken to be a binary...
2024
Anisotropy Kinematics Clarified through Regime Rrays Model
William J. Vetter
Search and Discovery.com
..., (3) not direction-wise orthagonal to front tangent planes; (4) and, velocity or slowness magnitudes along loci directions differ from those in front...
Unknown
Anisotropy Kinematics Clarified through Regime Rrays Model
William J. Vetter
Search and Discovery.com
..., (3) not direction-wise orthagonal to front tangent planes; (4) and, velocity or slowness magnitudes along loci directions differ from those in front...
Unknown
Section Four: Geologic Techniques for Operations on Diapiric Structures
New Orleans Geological Society
... distance in the well between the fault and the horizon by the tangent of the fault' shade (i.e., 90° - dip angle). Use 0.7 for 55°, 0.84 for 50°, or 1.0...
1995
Horizontal Well Drilling in the Arun Field
Fahmi Urip
Indonesian Petroleum Association
...-radius horizontal drilling, Oil and Gas Journal. Denny Kerr, 1991. Designing tangent sections for medium-radius horizontal wells, World Oil. Denny Kerr...
1992
Data-embedded physics-informed neural network for electromagnetic wave propagation simulation: Potentials and challenges
Yawei Su, Wenyi Hu, Jiefu Chen, Aria Abubakar
International Meeting for Applied Geoscience and Energy (IMAGE)
... data-driven network, and (b) the data-embedded PINN based on the homogeneous open space model. The unit for the spatial axis is one meter. lack of phy...
2024
Some Considerations in the Valuation of Gas Wells
John D. Wright
Wyoming Geological Association
... the hyperbolic equation: where: Di = initial nominal decline rate (t=0), 1/time Dei = initial effective decline rate from tangent line, 1/time; Dei=1-1n...
2001
A New Parallel Fold Construction Method from Borehole Dip for Structural Delineation; #41969 (2016)
Tetsushi Yamada, Isabelle Le Nir, Eric Moscardi, Arnaud Etchecopar
Search and Discovery.com
... when the data are from the same structure. The dip vector plot (Figure 1d) is also a recommended plot, which is drawn by creating unit vectors of dip...
2016
How to Improve the Definition of Seismic Reflection Data
D. Michon, R. Garotta
Indonesian Petroleum Association
... of tangent to the reflection, is infinite. This velocity decreases when the offset increases. It reaches 4 km/sec at one kilometer offset. That means...
1979
Role of Temperature and Time on Organic Metamorphism: GEOLOGIC NOTES
P. E. Gretener , C. D. Curtis
AAPG Bulletin
.... 65, p. 2521-2533. Fischer, A. G., 1969, Geological time-distance rates; the Bubnoff unit: Geol. Soc. America Bull., v. 80, p. 549-552. Gretener, P...
1982
Principles of Carbonate Sedimentation: Chapter 1
Wolfgang Schlager
AAPG Special Volumes
... to this exponential decay via a hyperbolic tangent function (Figures 1-1, 1-2). This implies that there is a shallow zone of light saturation, usually...
1992
Slope Mapping
W. E. Dole, N. F. Jordan
AAPG Bulletin
... units per unit of horizontal distance, for example, gammas per mile. Figures 3 and 4 show an original magnetic map and the slope map derived from...
1978
Placement Matters: Improving Survey Accuracy by Using Continuous Directional Data and Drilling Parameter Settings; #41856 (2016)
Ed Stockhausen, Richard Ball, Pete Clark, Richard Mongan, Philip Rice
Search and Discovery.com
... at the surface, generally resulting in a straighter section being achieved in the wellbore. This is often referred to as a tangent section. 2150...
2016
Offshore Coiled Tubing Drilling Arrives in Indonesia
Andrew D. Kirk, Taufiq Sembiring
Indonesian Petroleum Association
..." C.T.D. unit supplied and operated by P.T. Dowell Indonesia. The Semar was a 1950 eight(8) legged jack-up rig that had it's legs "amputated" in 1990...
1998
Seismic Stratigraphic Investigation of the West Florida Basin
Jacques P. Lord
GCAGS Transactions
... of the WFB. Model 2 has transform faults that trend WNW-ESE through the Florida peninsula and tangent to the toe of the peninsula. These transform...
1987
Entrapment of Petroleum Under Hydrodynamic Conditions
M. King Hubbert
AAPG Bulletin
... that En is equal in direction and magnitude to the unknown vector E. Hence the force per unit mass exerted upon an element of fluid by its environment...
1953
Calibration of stiffness parameters for Hardening Soil Model in residual soil from Kenny Hill Formation
Darvintharen Govindasamy, Mohd Ashraf Mohamad Ismail, Mohd Faiz Mohammad Zaki, Mohd Hazreek Zainal Abidin
Geological Society of Malaysia (GSM)
... is used as an alternative of the initial modulus E0 for small strain which, as a tangent modulus is harder to represent the soil behaviour. However...
2019
Sandstone Imbrication Study in Planar Sections: Dispersion, Biasses, and Measuring Methods
G. S. Gibbons
Journal of Sedimentary Research (SEPM)
... is the same (proportionately) in all sections; so the number frequency (per unit area) of such grains varies from section to section, since number proportion...
1972
Phase Unwrapping: A Review of Methods and a Novel Technique
Sam T. Kaplan
Search and Discovery.com
... the polynomial in equation (1) for the unit circle in the z plane. That is, for z 1 and arg(z) (S , S ] . Second, we take the logarithm of the polynomial w...
Unknown
Phase Unwrapping: A Review of Methods and a Novel Technique
Sam T. Kaplan
Search and Discovery.com
... the polynomial in equation (1) for the unit circle in the z plane. That is, for z 1 and arg(z) (S , S ] . Second, we take the logarithm of the polynomial w...
Unknown
Laboratory Study of the Distribution of Grain Sizes in Cross Bedded Deposits
Alan V. Jopling
Special Publications of SEPM
... in the preliminary study The approximate path lines of particles settling foreset front of a tabular unit of cross bedding a micro delta the flow pattern...
1960
Mechanisms for Deformation of Sedimentary Strata at Sheep Mountain Anticline, Bighorn Basin, Wyoming
Jeff Hennier, John H. Spang
Wyoming Geological Association
... and physiographic features: U.S. Geol. Survey Oil and Gas Inv. Prelim. Map 71. Bengston, C. A., 1980, Structural uses of tangent diagrams: Geology, v. 8, p...
1983
A database approach for constraining stochastic simulations of the sedimentary heterogeneity of fluvial reservoirs
Luca Colombera, Fabrizio Felletti, Nigel P. Mountney, William D. McCaffrey
AAPG Bulletin
... of observation, nested in a hierarchical manner (Figure 1). Each order of genetic unit is assigned a different table, and each unit within a table is given...
2012
Early Mississippian Megasequences
F.A. Stoakes
Special Publications of SEPM
.../Carboniferous boundary lies within that unit. The Banff Formation is a shallowing-upward succession of argillaceous shales and carbonates that form a prograding...
1992