A 3D immersed boundary method for acoustic wavefield simulation with irregular surface topography

Xiang Li, Ziduo Hu, Yancan Tian, Wei Liu, Zhonghua Xu, Gang Yao

International Meeting for Applied Geoscience and Energy (IMAGE)

... are on a straight line with the ghost point orthogonal to the surface, and then iteratively extrapolated the wavefield from the fictitious points...

Calibrating discrete fracture-network models with a carbonate three-dimensional outcrop fracture network: Implications for naturally fractured reservoir modeling

K. Bisdom, B. D. M. Gauthier, G. Bertotti, and N. J. Hardebol

AAPG Bulletin

... models with two orthogonal fracture sets (set I and set II). (C) Models with two orthogonal fracture sets with a larger variance in the fracture...

Integrating Gravity and Magnetic Data to Define Prospects for Oil and Gas in Central Texas: A possible structural framework for hydrocarbon exploration in central Texas

Joseph P. Fagan, Jr., E. Gerald Rolf, Robert U. Neese, Kenneth O. Seewald

Bulletin of South Texas Geological Society

... Engineering Report). Pearson, deRidder and Johnson, Inc. (PRJ) of Lakewood, Colorado recently interpreted two independent geophysical data sets over...

Fracture Density in the Deep Subsurface: Techniques with Application to Point Arguello Oil Field (1)

WAYNE NARR

AAPG Bulletin

... north-northeast to east-northeast across the anticline from well G to well D. Alternatively, two similarly oriented joint sets may be present...

ABSTRACT: Shear-Wave Splitting and Dispersion Analysis Using a Walkaround VSP for Fracture Characterization in Saudi Arabia: A Case Study, by Planchart, Carlos; #90141 (2012)

Search and Discovery.com

Another Look at the Separation of P- and S-Waves

Jun-Wei Huang

Search and Discovery.com

... to extract P- or S-wave energy based on the assumption that the polarization directions of P- and S-waves are orthogonal (Lei, 2005). Here we propose...

Another Look at the Separation of P- and S-Waves

Jun-Wei Huang

Search and Discovery.com

... to extract P- or S-wave energy based on the assumption that the polarization directions of P- and S-waves are orthogonal (Lei, 2005). Here we propose...

Quantification of Porosity and Permeability Reduction Due to Calcite Cementation Using Computer-Assisted Petrographic Image Analysis Techniques

Theodore T. Mowers, David A. Budd

AAPG Bulletin

... by statistical analysis of the two data sets (e.g., the correlation coefficient, r, and either the parametric paired t-test or nonparametric Mann-Whitney test...

Core Magnetostratigraphy: Chron 33r in the Southern Alberta Plains

Taslima Anwar, Andrew J. Mumpy, Dunia Blanco, Vadim A. Kravchinsky, Octavian Catuneanu

CSPG Bulletin

... C34n-C33r and/or C33r-C33n occur in all three cores and provide two regional time-stratigraphic markers which facilitate robust age correlation between...

Comparison of Structural Styles Observed in Upper Eocene (Jackson Group) and Oligocene (Vicksburg Group) Strata within the Rio Grande and Houston Embayments Southwest and Northeast of the San Marcos Arch, Refugio and Calhoun Counties, South Texas Gulf Coast

Osareni C. Ogiesoba, Angela K. Eluwa

GCAGS Journal

... four different surveys. Two of the seismic surveys (surveys #1 and #2) are located in Refugio County in the Rio Grande Embayment. The other two...

Lineaments and the Separation of Sicily Island from the Chalk Hills by the Ouachita River Valley, Northern Catahoula Parish, Louisiana, by Richard P. McCulloh, #50005 (2003).

Search and Discovery.com

Nature, origin and tectonic significance of anomalous transverse structures, southeastern Skeena Fold Belt, British Columbia

Margot McMechan

CSPG Bulletin

... of the Mosque Mountain area but are rare elsewhere (Fig. 3). Northeast- to east-trending folds are distinct from the northwest-trending folds as the two sets...

Syndeformational Magnetization in the Ordovician Bigfork Chert at Black Knob Ridge, Western Ouachita Mountains, Southern Oklahoma: (Part I)

Tony K. Hillegeist

Oklahoma City Geological Society

... cores were not oriented. Square symbols, horizontal component; circles, vertical component. The same convention is used on all orthogonal projections...

Abstract: Polygonal patterns, sedimentary facies and basin analysis

H. W. van de Poll, A. M. D’Orsay

Atlantic Geology

... patterns ranging from approximately 15 cm to 300 m in diameter are familiar features in sediments·. Two pattern types can be recognized: 1) orthogonal...

Numerical Simulation of Proppant Transport and Deposition in Complex Hydraulic-Natural Fracture Networks

Dharmendra Kumar, Baohua Liu, Ahmad Ghassemi

Unconventional Resources Technology Conference (URTEC)

... with one propagating hydraulic fracture (HF) and two sets of primary “P-NF” (i.e., natural fractures aligned orthogonal to the maximum horizontal stress...

Determination of Paleocurrent Direction from Oblique Sections of Trough Cross-Stratification--A Precise Approach: RESEARCH METHODS PAPER

Prabir Dasgupta

Journal of Sedimentary Research (SEPM)

... analysis. The geometry of simple trough cross-stratification is defined by two architectural elements: (1) the trough cross-sets and (2) the bounding...

Linears in Southeastern Alaska

James R. Reeves

Utah Geological Association

.... Figure 3. Northerly trending linears in southeastern Alaska. Same area as Figure 1. Note that two cross-cutting sets are distinguishable...

Reservoir Characterization Using Three-Dimensional Fault Restoration

Karen S. Hoffman, Derek R. Taylor, John W. Neave

Indonesian Petroleum Association

...-stratigraphic, orthogonal grid for property interpolation, as shown in Figure 2, would result in the treatment of these two sand bodies as independent...

Induced Fractures in Core: Chapter 3

B. R. Kulander, S. L. Dean, B. J. Ward Jr.

AAPG Special Volumes

... of the fracture trace on opposite sides of the cylinder are analogous to the two sets of tension fractures produced by subjecting a glass plate...

Fracture Systems of Mars

E. L. Harp

Utah Geological Association

... consists of two roughly orthogonal sets of fractures, one with a N40°-50°W trend and the other with a trend of N40°-50°E. These fractures are most dense...

Jointed deformation bands may not compartmentalize reservoirs

S. E. Tindall

AAPG Bulletin

... of deformation-band and joint orientations at each field site. Great circles represent mean attitudes of deformation-band sets, and poles represent mean...

Seismic inversion with dictionary learning using unsupervised machine learning

Debajeet Barman, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... the weights of the network. Two scenarios are tested. In the first, the dipole dictionary is provided and therefore, this may be termed a semi-supervised...

Shale Gas Potential in Triassic Strata of the Deep River Basin, Lee and Chatham Counties, North Carolina, USA; #80072 (2009)

Jeffrey C. Reid and Kenneth B. Taylor

Search and Discovery.com

... in the Cumnock Formation have reported natural gas and oil shows, and two shut-in wells have reported pressures of 900 psi and 300 psi. References...

AVO-preserving seismic data interpolation by orthogonal polynomial decomposition and mathematical morphological filtering

Yanxin Zhou, Yangang Mo, Junzhou Liu, Dajian Jiang

International Meeting for Applied Geoscience and Energy (IMAGE)

...AVO-preserving seismic data interpolation by orthogonal polynomial decomposition and mathematical morphological filtering Yanxin Zhou, Yangang Mo...

Raman Microscopy Analysis of Wyoming CarbonSAFE Pilot Well Thin Sections for Mineralogy and Organic Matter Characterization

Grant A. Myers, Trevor Brown, Shavinka Fernando, Erin Phillips, Fred McLaughlin

Unconventional Resources Technology Conference (URTEC)

... of the two sets from measured map-median Raman spectra parameters indicates that generally, the maturity of both sets falls outside the range...