Fracture, Fracture Everywhere: Part I

Rasoul Sorkhabi

GEO ExPro Magazine

..., Ph.D. The term ‘fracture’ includes any break or structural discontinuity in rocks in which two rock fracture surfaces (usually planar) are separated...

Progressive Neogene Deformation of Southern Hedil, Tunisian Atlas: GEOLOGIC NOTES

Curtis R. Cohen , Steven Schamel

AAPG Bulletin

... sets of faults cut the folds: (1) longitudinal and (2) transverse faults, respectively parallel with and orthogonal to the regional structural grain...

3D installation of fiber cables for acquiring 3C DAS array data

Yingping Li, David Li, Lianjie Huang, Yingcai Zheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... DAS CCC fiber array is composed of a fiber cable along two perpendicular lines and 25 concentric circles at the surface and a fiber cable of 400 m...

Abstract: Compaction Localization—Rule or Exception During Sandstone Burial; #90063 (2007)

Search and Discovery.com

Detection and Analysis of Structurally Controlled Sweet Spots in the Bakken/Three Fork Oil Shale Play of the Williston Basin and the Exshaw/Big Valley Oil Shale Play of the Foreland Basin of Southern Alberta and Northern Montana; #10694 (2014)

Zeev Berger, Martin Mushayandevu

Search and Discovery.com

... shale packages. These unique structural features form the prime location for the exploitation of these two emerging resource plays. Drilling results...

Failure of cap-rock seals as determined from mechanical stratigraphy, stress history, and tensile-failure analysis of exhumed analogs

E. S. Petrie, J. P. Evans, and S. J. Bauer

AAPG Bulletin

...) Bedding plane view of two near-vertical fracture sets observed at this locality. (D) Cross-sectional view of youngest fracture set; horizontal aragonite...

Towards a More Accurate Gas-in-Place Model: Reconciling Gas Storage with Gas Production in the Marcellus Shale, Appalachian Basin, USA

David R. Blood, Scott D. McCallum, Jalal Jalali, Ashley S. B. Douds, Merril J. Stypula

Unconventional Resources Technology Conference (URTEC)

... of overpressure and TOC. URTeC 2558 6 Figure 3: Fracture spacing and its relationship to TOC. (A) TOC vs mean fracture spacing for two joint sets...

Analysis of Scale Exaggeration on Seismic Profiles (1)

DONALD S. STONE

AAPG Bulletin

... scale geometry of two reflecting horizons on a seismic profile (migrated or unmigrated). Unexaggerated dip is 14 degrees, and orthogonal thickness...

My Favorite Outcrop(s): The Woodford Shale SH-77D: Le Couer de Arbuckle Mountains, OK.

Andrew Cullen

Oklahoma City Geological Society

... long fracture sets that strike about ∼N50°W. A second, closely spaced nearly orthogonal fracture shorter fracture set (N30°E) is present but weakly...

Experimental Modeling of Orthogonal and Oblique Basin Inversion: Identifying Structures That Reflect the Paleostrain State

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A Statistical Analysis of Photolineaments and Joints, Terrain Parameters and Lineament Density Near Lethbridge, Alberta

Elkanah A. Babcock

Utah Geological Association

...ed. Joints within the study area belong to four clearly defined sets which form two nearly orthogonal systems. Table 1 summarizes the statisti...

Magnetic Stratigraphy and Tectonic Rotation of the Oligocene Alsea, Yaquina, and Nye Formations, Lincoln County, Oregon

Donald R. Prothero, Clio Z. Bitboul, George W. Moore, Alan R. Niem

Pacific Section SEPM

... temperatures. Various authors have 185 Figure 2. Orthogonal demagnetization plots of representative samples from the Alsea, Yaquina, and Nye formations...

Quantitative Biofacies Analysis

Martin A. Buzas

Special Publications of SEPM

... When two or more normal distributions are considered simultaneously, the covariance between the variates becomes important. The covariance is given...

Regional and Local Components in Facies Maps

W. C. Krumbein

AAPG Bulletin

... by the first orthogonal polynomial for each row from Table III. The first value is (-2.410)(-5) = +12.05 and the second is (-2.410)(-3) = +7.23 to two...

Defining a Gradient in a Sample of Sedimentary Rock: ABSTRACT

E. C. Dahlberg

AAPG Bulletin

...Defining a Gradient in a Sample of Sedimentary Rock: ABSTRACT E. C. Dahlberg 1965 337 337 49 3. (March) Three orthogonal planes (two vertical and one...

Chapter 99: Deep-water Sheet and Channel-fill Sandstones in the Wildhorse Mountain Formation, Oklahoma, USA

R. M. Slatt, B. Omatsola

AAPG Special Volumes

... has resulted in development of two orthogonal, bed-normal fracture sets (Busetti, 2003). Fracture spacing is somewhat proportional to stratigraphic...

The Use of Coring-Induced Petal Fractures in Coal to Supplement and Ground Truth the Interpretation of Image Logs

David Titheridge, Saswata Mukherjee

Petroleum Exploration Society of Australia (PESA)

... orthogonal set is interpreted to be a result of compression followed by uplift. The two red sets are interpreted as cross joints associated with folding...

Coalbed Methane Multicomponent 3-D Reservoir Characterization Study, Cedar Hill Field, San Juan Basin, New Mexico

Thomas L. Davis, Robert D. Benson, Edward L. Shuck

Rocky Mountain Association of Geologists

... Association of Geologists Thomas L. Davis, Robert D. Beizson, Edward L. Shuck 198 PROCESSING DATA ACQUISITON AND wave” and two orthogonal “S-wave...

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...

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)

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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...

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...