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The AAPG/Datapages Combined Publications Database
Showing 1,247 Results. Searched 200,630 documents.
Determination of Calcite, Dolomite, Quartz and Clay Content of Carbonate Rocks
Frank E. Diebold, John Lemish, Carl L. Hiltrop
Journal of Sedimentary Research (SEPM)
... for the regression line. f=ni - 2 The quantity wi[yi(a+b(cic))2] is the summation of the products of the weight of each array and the square of the deviation...
1963
Basal Beds of Salado Formation in Fletcher Potash Core Test, Near Carlsbad, New Mexico
Walter B. Lang
AAPG Bulletin
... is calculated to dolomite, 1.41 per cent of MgO is left unaccounted for and the calculated CaSO4 yields a summation less than 98 per cent. No water...
1942
Machine-Learning-Based Completion Optimization Workflow for Multi-Bench Development in the Midland Basin
Jaeyoung Park, Trent Wien, Kyle Smith, Chuck Nwabuoku, Raquel Gordillo
Unconventional Resources Technology Conference (URTEC)
... category for the window Similarly, the time-variant depletion term in each window is calculated as the summation shown below...
2022
Understanding the Stratigraphic Big Picture By Utilizing Core-calibrated, Wireline Facies: An Example From the Middle Leonard Interval, Midland Basin, West Texas
David L. Carr, H. Scott Hamlin
Unconventional Resources Technology Conference (URTEC)
... ‘wireline facies maps’, i.e., the the contoured summation results, are displayed in figures 9-11. URTeC 3859717 Figure 7. Structural cross...
2023
Multi-modal Data-assisted Prediction and Analysis of Shale Gas Production Performance at Early Production Stage in Weirong Shale Gas Field, Sichuan Basin, China
Tianrui Ye, Yitian Xiao, Yong Zhao, Haitao Cao, Chunyan He
Unconventional Resources Technology Conference (URTEC)
...ti-head attention modifies the standard attention by sharing values across heads and aggregating the heads through simple summation as formulated in Equ...
2023
Auto-identification and Real-time Warning Method of Multiple Type Events During Multistage Horizontal Well Fracturing
Mingze Zhao, Yue Li, Yuyang Liu, Bin Yuan, Siwei Meng, Wei Zhang, He Liu
Unconventional Resources Technology Conference (URTEC)
... the omission of effective information in data; The latter uses the Soft Attention of weighted summation to automatically extract information that has...
2023
EXTENDED ABSTRACT: Devils Tower Area: Rationalization of Geophysical Subtleties with Geologic Concepts Provides Basis for Successful Drilling Program
Wieg, Paul K. and Fingleton, W. George
GCAGS Transactions
... shows a summation of tuning volumes for the "red" level, and the geometry of the anomalous area shown colored red corresponding to sands...
2004
Chapter Eight: Horizon and Formation Attributes
Alistair R. Brown
AAPG Special Volumes
... and their value in stratigraphic interpretation are addressed at length in Chapter 4. Composite amplitude is the absolute value summation...
2011
Using NMR-Based Indices for determining Accessible Mineral Surfaces in Unconventional Sedimentary and Igneous Rocks
Shaina Kelly, Olivia Terry, Zuhao Kou, Ron Bonnie, James Howard, Dragan Veselinovic, Michael Dick
Unconventional Resources Technology Conference (URTEC)
... to an accessible reactive surface area through the following summation: 𝑎) = * +) - .& - .# + , + , /∑/ 1𝑉, 3 3 4 + ∑2 1𝑉, 3 3 4...
2025
Dynamic Relationship Between Hydraulics and Sedimentation in the Altamaha Estuary
Glenn S. Visher, James D. Howard
Journal of Sedimentary Research (SEPM)
.... These distributions were sampled during ebb, with maximum bottom velocity of .2 mps. Summation of suspension and bedload curves will produce a distribution...
1974
Paleocurrent Analysis of Alluvial Sediments: A Discussion of Directional Variance and Vector Magnitude
Andrew D. Miall
Journal of Sedimentary Research (SEPM)
... sampling area. A similar summation must be carried out on Coleman's crossbedding data (Coleman, 1969, 43-45) which was measured on straight reaches...
1974
Estimates of Sand Transport on the New York Shelf Using Near-bottom Current Meter Observations
P. E. Gadd, J. W. Lavelle, D. J. P. Swift
Journal of Sedimentary Research (SEPM)
...|, was computed. Scalar summation of each 10-minute flux prediction was deemed adequate in light of the similarity of transport directions during each interval...
1978
Designation of Stratigraphic Units
Harry E. Wheeler , V. Standish Mallory
AAPG Bulletin
... only in terms of the arbitrary cut-off. 13. Finally, and in summation of factors present in all the preceding conclusions, the writers believe...
1953
Stratigraphic Aspects of Petroleum Resource Assessment
Gregory Ulmishek
AAPG Special Volumes
... for such widely variable characteristics as reservoir fraction, porosity, and area of closure. The summation of petroleum resources in separate plays...
1986
6 Practical Aspects of Earth Temperatures
P. E. Gretener
AAPG Special Volumes
... by way of summation End_Page 115------------------------ Figure 6.34-4 shows the evaluation of a more complex thermal history. Table 6.34-2 gives...
1981
Improved Methodology for Using Embedded Markov Chains to Describe Cyclical Sediments
Dennis W. Powers, Robert G. Easterling
Journal of Sedimentary Research (SEPM)
..., the expected value of nijk is estimated by Eijk = nij+n+jk/n+j+, where + denotes summation over that subscript. (Note the similarity to the expectations...
1982
Depositional and Diagenetic Patterns, Ancient Oolite Middle Ordovician, Eastern Tennessee
Dave L. Cantrell, Kenneth R. Walker
Journal of Sedimentary Research (SEPM)
... removed by dissolution based on summation of peak-to-peak heights. Dolomitization Dolomite is a locally common component of the oolite (Fig. 10E, F...
1985
Flexure of the Lithosphere: Chapter 5
Charles L. Angevine, Paul L. Heller, Chris Paola
AAPG Special Volumes
... small x, the summation becomes an integration: [EQUATION (5.19)] In principle the limits of integration go from - to +; in practice, the limits...
1990
Time-Stratigraphy
Harry E. Wheeler
AAPG Bulletin
... summation, the discussion to this point argues that time-stratigraphic units must include all three-dimensional entities (material, non-material...
1958
Fossil Leaves and Fruits as Indicators of Paleotransport in a Miocene Lake from Northern Idaho
Austin Boyd
Journal of Sedimentary Research (SEPM)
... random scattering could be expected when reorienting leaves. CONCLUSION The summation of conditions as suggested by the parameters of leaf size...
1991
Exploration and Development of Hydrocarbons from Low-Permeability Chalks--an Example from the Upper Cretaceous Niobrara Formation, Rocky Mountain Region
Richard M. Pollastro, Peter A. Scholle
AAPG Special Volumes
..., this map was constructed by an estimated summation of the thicknesses of all post-Niobrara sediments in the region. In areas where maximum burial has been...
1986
Cement Sequence Stratigraphy in Carbonates: PERSPECTIVE
C.J.R. Braithwaite
Journal of Sedimentary Research (SEPM)
... a valuable tool for the progressive acquisition of "complete" sequences (by summation) in concert with a regional analysis of distribution patterns...
1993
Dip-Slip Versus Strike-Slip Movement on San Gabriel Fault, Southern California
Robert H. Paschall , Theodore Off
AAPG Bulletin
... of lively controversy regarding the validity of his concept. This article is a summation of the data which appear to challenge Crowell's interpretation...
1961
Seismic Stratigraphy and Global Changes of Sea Level: Part 3. Relative Changes of Sea Level from Coastal Onlap: Section 2. Application of Seismic Reflection Configuration to Stratigrapic Interpretation
P. R. Vail, R. M. Mitchum Jr. , S. Thompson III
AAPG Special Volumes
... tical components; seismic times must be converted to depth--the summation gives the total coastal aggradation and thus the total relative rise in sea...
1977
Seismic Exploration for Stratigraphic Traps: Section 2. Application of Seismic Reflection Configuration to Stratigraphic Interpretation
Milton B. Dobrin
AAPG Special Volumes
... are not commonly conformable with other nearby interfaces. Thus a reflection from such surfaces can not be built up by summation or reinforcing events from...
1977