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The AAPG/Datapages Combined Publications Database
Showing 169 Results. Searched 201,049 documents.
Abstract: Detecting Subsurface Voids Using the Microgravity Method Β A Case Study from Kuala Lipis, Pahang
Ahmad Tajuddin Hj. Ibrahim, Che Noorliza Lat
Geological Society of Malaysia (GSM)
... at four locations at depths varying from 3.77 to 6.50 m. The depth to the center of each anomalous body was calculated using the half-width method...
2004
Detecting Subsurface Voids Using the Microgravity Method Β A Case Study from Kuala Lipis, Pahang
Ahmad Tajuddin Hj. Ibrahim, Che Noorliza Lat
Geological Society of Malaysia (GSM)
... of each anomalous body was calculated using the half-width method. The depth of the cavity interpreted from the borehole turned out to be shallower when...
2004
Optimization method of geometry and application based on Fresnel Gaussian beam forward modeling
Yang Jing, Yu Fuwen, Xu Xiaokun, Lv Shuang, Wang Xiangqian
International Meeting for Applied Geoscience and Energy (IMAGE)
... half width, making the travel time and amplitude calculation of the wave field near the central ray more accurate, thus improving the accuracy...
2024
Straightforward Representative Fluid Flow Models for Complex Fracture Networks in Unconventional Reservoirs
Jorge A. AcuΓ±a
Unconventional Resources Technology Conference (URTEC)
... (Table 4 in AcuΓ±a, 2017) are used with a permeability of 5e-4 md to construct the reservoir half-width equal to π ππ π 2πΏβ1 for each distance range...
2018
A New Method for Obtaining Significant Average Directional Measurements in Cross-Stratification Studies
O. B. Raup, A. T. Miesch
Journal of Sedimentary Research (SEPM)
... by the commonly used equation, h = [ts]/[n] where h is the half-width of the confidence interval, s is the standard deviation, n is the number of measurements...
1957
Flexure of the Lithosphere: Chapter 5
Charles L. Angevine, Paul L. Heller, Chris Paola
AAPG Special Volumes
... is narrow; when is large the deflection is broad. Figure 5.4A shows that the half-width of the deflection (defined as the distance from the point load...
1990
Figures: PART 1
Charles L. Angevine, Paul L. Heller, Chris Paola
AAPG Special Volumes
...------------------------ Fig. 5.9. Diagram showing the deflection of the elastic lithosphere due to a load of rectangular cross section. The load has a half-width of L...
1990
Possibility of Outlining Gas-Oil Pools by the Method of Electrical Sounding Using Boreholes
M. A. Kirichek, Yu. S. Korolβkov, A. N. Kuznetsov, A. P. Yakovkev
Petroleum Geology: A Digest of Russian Literature
... is the main gas-bearing horizon IX. The sounding was carried out under very favorable conditions with d/h = 10, where d is half the width of the pool...
1965
Construction and Use of Maps of Curvature for Revealing Buried Platform Uplifts
A. B. Kogan
Petroleum Geology: A Digest of Russian Literature
... to the point where R does not attain half the width of a structure of the second order. Further increase in Ξh ceases, in spite of increase in R...
1961
Application of Zero Offset 2D CRS-Stack Method for Low Fold Data: Synthetic and Real Data Examples
R. Sule, A. Hendriyana, P. D. Anggraini, Fatkhan, Alfian, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
... curved reflector. It can be expressed as follow: where The index denotes the contributing traces , the discrete traveltime for each traces, W half-width...
2009
Integrated approach for de-risking an unconventional tight sand play
Fahad Alkhunaini, Mohammad Mohanna, Francis Elisabeth, Jana Alfaraj, Heba Alsoqair, Omar Jahdali
International Meeting for Applied Geoscience and Energy (IMAGE)
... then, the areal extend of the tight sand play far exceeded the small field to span an area half the width of Texas, USA. With many more horizontal wells...
2022
Modeling Hydro-Isostasy: Isostatic Flexure Along the Global Coastlines Due to Sea-Level Rise and Fall
Eric W. Hutton and James P.M. Syvitski
Search and Discovery.com
... an analytical method for the deflection of a continental shelf due to hydro-isostasy given 1) a change in eustatic sea level rise or fall, 2) the shape...
Unknown
ABSTRACT: Laboratory Simulation of Shale Gas Adsorption under Geological Conditions; #90134 (2011)
Kan Yang, Xiancai Lu, Linye Zhang, Wenxuan Hu, Xuefen Zhang
Search and Discovery.com
... of eleven shale samples were measured by N2 adsorption isotherm method. Isotherms as well as pore size distributions of these samples were obtained (See Fig...
2011
Automatic Analysis of Tracer Sand
P. G. Teleki
Journal of Sedimentary Research (SEPM)
... percent T (half-width), transmission is wide, encompassing a wavelength () range from 490 mΒ΅ to 670 mΒ΅ (as in Tracer M-12). Often transmission maxima...
1967
Modeling Tidal Bedding In Distributary-Mouth Bars
Nicoletta Leonardi, Tao Sun, Sergio Fagherazzi
Journal of Sedimentary Research (SEPM)
... not contributing to the momentum balance. To compute centerline velocity, jet half-width, and centerline sediment concentrations in case of flat bottom...
2014
Characterizing Gas Transfer from the Inorganic Matrix and Kerogen to Fracture Networks: A Comprehensive Analytical Modeling Approach
Jie Zeng, Jishan Liu, Wai Li, Lin Li, Yee-Kwong Leong, Derek Elsworth, Jianchun Guo
Unconventional Resources Technology Conference (URTEC)
...); xe is the reservoir half-width (ft); y1 is the SRV half-width (ft); y2 is the half-spacing between two fractures (ft); and wF is the hydraulic...
2019
Some Developments in Aerial Photography during the War: GEOLOGICAL NOTES
L. E. Nugent, Jr.
AAPG Bulletin
... running simultaneously provides coverage at 1/10,000 or 1/20,000 of a strip 15,000 feet wide, half the width of the vertical 6-inch strip. It was common...
1946
Novel Methods to Overcome Micro-Seismic Limitations in Estimating Hydraulic Fracture Geometry in Unconventional Reservoirs
Shubham Mishra, Vinil Reddy
Unconventional Resources Technology Conference (URTEC)
.... For a complex fracture network, fracture half-length and half-width of the entire fracture network, across one side of the well (Refer Figure 1d). HFG...
2021
Photoelastic Model Studies of Thrust Fault Initiation
J. J. Gallagher Jr., W. D. Rizer
Wyoming Geological Association
... is the slot direction relative to the loading direction. The half-length and half-width of the slots are a and b. NOTE: Slots are 0.125 in. wide and Q...
1977
Evaluation of possible gas microseepage mechanisms
Alton Brown
AAPG Bulletin
... walls. Wall effects decrease as the ratio of the sphere radius to half width separating the plates decreases. For a sphere of radius a rising halfway...
2000
Preliminary Report on Curved Fractures Near Faults as Related to Fluid Extraction
Richard J. Erdlac, Jr., Richard J. Erdlac
West Texas Geological Society
... (Figure 2) were compared with the distance from those features in which stress field curvature was identified. Only the half-width of the stress field...
2000
Subseismic Fault Identification Using the Fault Likelihood Attribute: Application to Geosteering in the DJ Basin
Ron Harris, Kyle Bracken, Bill Miller, Steve Angelovich, Thomas O'Toole
Unconventional Resources Technology Conference (URTEC)
... of this smoothing is controlled by a parameter π π π‘ππ’ππ‘π’ππ , which defines the half-width in sample space of the smoothing operator. Having computed...
2019
3-D Geocellular Modeling
Mike Shepherd
AAPG Special Volumes
... to influence flow. Some modelers recommend that the grid cell size should be at least half the width of the narrowest macroform (Figure 135). The cell...
2009
Measures of Particle Roundness: A NOTE
Bernard Swan
Journal of Sedimentary Research (SEPM)
... circle as its denominator. This value is often more or less equal to half the width of the particle. When used as with particle outlines it prevents...
1974
Fracture identification by reflected guided borehole radar waves
Binzhong Zhou, Jianjian Huo, Iain Mason, Qing Zhao
Petroleum Exploration Society of Australia (PESA)
... antenna - travels in steps of 0.05 m along a borehole. The Tx fires a pulse with a Gaussian envelope of ~2.2 ns half-width with a 200 MHz centre frequency...
2019