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The AAPG/Datapages Combined Publications Database
Showing 13,874 Results. Searched 200,357 documents.
An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement
Andy Furniss
Indonesian Petroleum Association
... in the Dix equation, we can calculate an RMS velocity error that will flatten the gather in much the same way as normal moveout velocity is used...
2000
An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement
Andy Furniss
Petroleum Exploration Society of Australia (PESA)
... calculate an RMS velocity error that will flatten the gather in much the same way as normal moveout velocity is used to flatten gathers before stacking...
1999
Effectiveness of Study of Oil-Gas Structures in Shallow Water by Aerial Photography
V. V. Sharkov, Z. I. Gur’yev, A. Ya. Taboyakov
Petroleum Geology: A Digest of Russian Literature
... been made of the economic aspects; consequently, the conclusions based on approximate data make no pretense at great accuracy. Nevertheless, the figures...
1973
Wellsite Math: Part 3. Wellsite Methods
Greg Dunn
AAPG Special Volumes
... are used to make key calculations during the drilling of a well. The results from these calculations increase knowledge of well behavior and facilitate...
1992
Graphic Method of Determination of the Position of the Gas-Water Contact in Gas Pools
I. V. Petrov
Petroleum Geology: A Digest of Russian Literature
... the formation pressure. Formation pressure Pw for water, Pg for gas. Normal piezometric height Lp - a column of liquid of specific gravity 1 equaling...
1960
Abstract: Regular Grids Travel Time Calculation Fast Marching with an Adaptive Stencils Approach; #90187 (2014)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
... solver provides an efficient algorithm for grid travel time calculation. Since both efficiencies and accuracy are important in exploration seismic...
2014
Technological Revolution in Petroleum Exploration: Chapter 11
Edgar Wesley Owen, C. V. Millikan
AAPG Special Volumes
... sections on variable density film (Dobrin and Van Nostrand, 1956). Record sections, incorporating corrections for surface effects and normal moveout, were...
1975
A Modified Approach to Estimating Coal and Coal Gas Resources: Example from the Sand Wash Basin, Colorado
Andrew R. Scott , Naijiang Zhou , Jeffrey R. Levine
AAPG Bulletin
.... Rather than using one density value, as has been done in previous studies, our calculations require that bulk coal density (including mineral matter...
1995
Geophysical Interpretation of Pinedale Field
Sally G. Zinke
AAPG Special Volumes
.... Seismic stacking velocities (the velocity calculated during processing from normal moveout measurements) have been an easily accessible dataset...
2014
Accuracy of Calculations of the Capacities of Traps and Pools of Gas
Ye. V. Zakharov, I. V. Mashkov
Petroleum Geology: A Digest of Russian Literature
...Accuracy of Calculations of the Capacities of Traps and Pools of Gas Ye. V. Zakharov, I. V. Mashkov 1961 212 216 Vol. 5 (1961) No. 4. (April) 1...
1961
Grain-Size Statistics II: Evaluation of Grouped Moment Measures
Davis Swan , John J. Clague, John L. Luternauer
Journal of Sedimentary Research (SEPM)
...), The accuracy of grouped moment statistical parameters is evaluated by comparing the grouped values to corresponding values calculated from digitally generated...
1979
Improved Technique for Determination of Densities and Porosities
H. R. Brankstone , W. B. Gealy , W. O. Smith
AAPG Bulletin
... calculations. This increases considerably the accuracy of the method. It was found that mercury penetrates the pores of many samples. A protective...
1932
Method of Quantitative Estimation of Scales of Gas Separation
V. A. Tereshchenko
Petroleum Geology: A Digest of Russian Literature
.... and Prasolov, E. M., 1971, Estimation of the accuracy of determining concentration of radiogenic argon in natural gases: Geohkimiya, no. 5. 2. Voronov. A. N...
1973
Estimation of the Information Capacity and Practical Significance of Relationships used in Geophysical Logging
A. I. Volkova, L. B. Dvorkin
Petroleum Geology: A Digest of Russian Literature
... = 1 n ∑ j = 0 m r j W K π i / P j lg W K π i / P j ∑ i = 1 n W i lg W i For the calculations we used...
1966
The Dual Nature of Petroleum Maps
L. Harold Spradley
Houston Geological Society Bulletin
... inherent in property maps is that of accuracy. As each tract is surveyed, the angles and lengths are measured, then an adjustment is made in the calculations...
1988
Borehole gravity in Horizontal Wells
Andrew J. Black, Jennifer Hare
Petroleum Exploration Society of Australia (PESA)
... accuracy, stability and ruggedness. The data handling has also changed to address the 3 dimensional nature of the measurements. Whereas previous borehole...
2018
Preliminary Evaluation of a Core Scintillation Counter for Bulk Density Measurement in Marine Sediment Cores
Chester Brier , Robert Bennin , Peter A. Rona
Journal of Sedimentary Research (SEPM)
... density of cores of marine sediment sealed in plastic liners. A preliminary evaluation indicates that two principle problems affecting accuracy...
1969
Method of Planning the Preparation of Reserves of Category C2
M. G. Leybson
Petroleum Geology: A Digest of Russian Literature
... of categories A plus B plus C1, for which 18-20 new areas were to be placed in prospecting. Calculations showed that of the 85 available favorable...
1965
A Comparison of Two Methods for Converting Grain Counts to Weight Percent Composition
R. C. Kellagher, Francis J. Flanagan
Journal of Sedimentary Research (SEPM)
..., A. L., JR., 1931, Accuracy in percentage representation of heavy mineral frequencies: Nat. Acad. Sci. Proc., v. 17, pp. 223-238. GROUT, F. F., 1937...
1956
Three-Phase Darcy Migration in Basin Modeling, #42071 (2017).
Clementine Meiller, Julien Coatleven, Jean-Charles de Hamptinne, Xavier Guichet, Nicolas Maurand
Search and Discovery.com
... by thermodynamic calculations in post-processing. However, to take into account complex phenomena occurring along the migration pathway, such as appearance...
2017
Use of Geophysical Methods for Study of Borehole Sections in Connection with Calculation of Reserves
V. N. Dakhnov
Petroleum Geology: A Digest of Russian Literature
... permit the reservoir properties and oil-gas saturation to be estimated not with less accuracy but in many cases with greater accuracy than is possible...
1960
Long Shots with an Alidade: GEOLOGICAL NOTES
Donuil Hillis
AAPG Bulletin
... not exceed 2 feet in distances as great as 40,000 feet. The following examples indicate the accuracy as well as the time saved. 1. By a traverse that began...
1929
A fast sweeping method based on coordinate transformation for eikonal equation on unstructured triangular meshes
Xin Chen, Danping Cao, Xin Fu
International Meeting for Applied Geoscience and Energy (IMAGE)
..., and enhances the accuracy of traveltime calculations. Numerical tests have confirmed the validity and precision of this new method for models with irregular...
2024
Ways of Improving the Methods of Working Gas and Gas-Condensate Fields
Yu. P. Korotayev
Petroleum Geology: A Digest of Russian Literature
... of the necessary apparatus and instruments with sufficient accuracy. At present it is necessary to organize the development and production of telemetered...
1963
Unlocking Efficiency in Gas Lift System Operation: A Data Driven Approach for Early Problem Identification Using Machine Learning and Digitalized Two-Pen Recorder Chart
Sri Dwi Mustaqim, Amega Yasutra
Indonesian Petroleum Association
.... There are four types of calculations commonly used to evaluate the application of classification ML algorithms, namely classification accuracy, precision...
2024