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The AAPG/Datapages Combined Publications Database

Showing 73,109 Results. Searched 200,357 documents.

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Ascending

Curvature of Equipotential Surfaces

M. M. Slotnick

AAPG Bulletin

... as a series when the surrounding space is referred to a convenient cartesian coordinate system. The tangent plane to S at P is that plane in which all...

1932

ABSTRACT: Aquifer and Reservoir Analog Heterogeneity for Petroleum and Groundwater Modeling from Lidar Imaging of Outcrops; #90106 (2010)

Elizabeth M. Nichols, Gary S. Weissmann, Timothy F. Wawrzyniec

Search and Discovery.com

... on the surface of the sediments. The lidar data are represented as a point cloud of intensity values with an x, y, and z coordinate system. We created a 3D...

2010

Multi-Resolution Simulation for Efficient Pressure & Stress Calculation in Large-Scale CO2 Storage Using Pseudosteady State Pressure as Spatial Coordinate

Kazuyuki Terada, Akhil Datta-Gupta, Michael J. King

Carbon Capture, Utilization and Storage (CCUS)

... in Large-Scale CO2 Storage Using Pseudosteady State Pressure as Spatial Coordinate Kazuyuki Terada*, Akhil Datta-Gupta, Michael J. King. Texas A&M...

2024

Fracture Analysis Before and After Hydraulic Fracturing in the Marcellus Shale Using the Mohr-Coulomb Failure Criteria

Kaitlin Evans, Randy Toth, Tobi Ore, Jarrett Smith,Natalia Bannikova, Timothy Carr, Payam Kavousi Ghahfarokhi

Unconventional Resources Technology Conference (URTEC)

... . The principal normal stress is represented by Eq. 2: 𝑆𝑆1 𝑆𝑆 = � 0 0 This stress can be expressed in a geographical coordinate system using the transform...

2019

Abstract: SS-wave Reflections from P-wave Sources in Azimuthally Anisotropic Media; #90187 (2014)

James Gaiser and Richard Verm

Search and Discovery.com

... to a source-centered coordinate system (Gaiser, 1999) of radial and trans- Table 1: VTI Marcellus model. Depths and velocities are m and m/s, respective3...

2014

Damage Model for Reservoir with Multisets of Natural Fractures and Its Application in Hydraulic Fracturing Simulation, #41893 (2016).

Xinpu Shen

Search and Discovery.com

..., and x-direction of the coordinate system adopted in a calculation. Figure 1 shows the spatial relationship between these angles and direction...

2016

Data processing workflow for reflections from cement-formation interface in ultrasonic pitch-catch measurement in cased hole

Shaopeng Shi, Hua Wang, Meng Li, Aihua Tao

International Meeting for Applied Geoscience and Energy (IMAGE)

... on the clustering results, we obtain the inner boundaries of clusters (Figure 8d) using an auto-picking method. We establish a polar coordinate system...

2022

Abstract: Utilization of Digital Photogrammetry in Spatiotemporal Knowledge of Landslides; #90172 (2014)

M. Mastere, L. Aït Brahim, B. Van Vliet-Lanoë, N. Elfahchouch, E. Guelzime, H. Jirari, A. Abdelouafi

Search and Discovery.com

... using a localized Cartesian coordinate system. The image space coordinate system directs the z-axis toward the imaged object and the y-axis directed...

2014

A Gravity and Magnetic Survey of the Ute Mountain Ute Indian Reservation, Colorado and New Mexico

Michael W. Webring, Gerda A. Abrams

Utah Geological Association

... from meter readings which are corrected for meter drift and sun/ moon tides and then tied to the regional gravity net using a base station located...

1996

Plotting Equation for Gaussian Percentiles and a Spreadsheet Program for Generating Probability Plots: REPLY

James H. Balsillie, Joseph F. Donoghue, Kenji M. Butler, Jennifer L. Koch

Journal of Sedimentary Research (SEPM)

... a method for determining Gaussian plotting positions in a linear coordinate system solves, however, only part of the problem. Once done, the remaining...

2003

Pertagis (Pertamina Gis), The Journey to One Map Pertamina to Support The Borderless Operation Excellence of Sub Holding Upstream

Puguh Sarwanto, Dyah Woelandari, Novandy Ritung

Indonesian Petroleum Association

... application. Direct advantages of using the system are: • Reliable summary information on dashboard for Executive level as well as valuable real-time...

2022

Development of a High-Resolution Geological Framework Model for the Edwards Aquifer Recharge Zone: Data, Assumptions, Procedures, and Workflow

Deborah J. Waiting, David A. Ferrill, Darrell W. Sims

Bulletin of South Texas Geological Society

... distortion of area and local angles by using a central meridian within each zone (Snyder, 1987; ESRI, 1992). The UTM coordinate system is not the only...

2003

Effects of tool eccentricity on acoustic logging: Theory and field example

Bo Rao, Yuanda Su, Shengqing Li, Xiaoming Tang

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Therefore, we analyze the model of acoustic logging with an eccentric tool in a dualcylindrical coordinate system centered on the tool and borehole...

2024

Composite End Members in Facies Mapping

W. C. Krumbein

Journal of Sedimentary Research (SEPM)

... "optimum point." The Cartesian coordinate system is centered at the optimum point, with the X-axis parallel to the base of the triangle, and the Y-axis...

1955

Abstracts: Development of a Dynamical/Statistical Operational System to Forecast and Analyze Atmospheric Winds at Surface Level Valid for up to 168-hour Periods; #90173 (2015)

Edgar Herrera Guzman and Svetlana Machurina

Search and Discovery.com

...Abstracts: Development of a Dynamical/Statistical Operational System to Forecast and Analyze Atmospheric Winds at Surface Level Valid for up...

2015

Review of Digital Geological Mapping Techniques

Chai Ted Sing

Geological Society of Malaysia (GSM)

... be registered to the same geographic coordinate system as the field observation data through Digital Image Processing techniques. Digital field data...

2003

An Instrument for Textural Analysis of Sedimentary Rocks: GEOLOGICAL NOTE

C. G. Winder

CSPG Bulletin

... given to mineral variation allows the use of an optical instrument such as a stereoscopic microscope which does not have a polarizing system. However...

1964

Numerical modeling of shear deformation measurements from distributed fiber optic strain sensing for detection and mitigation of induced seismicity

Aishwarya Srinivasan, Kan Wu, Ge Jin, George Moridis

Unconventional Resources Technology Conference (URTEC)

... converted to the fault coordinate system by considering the fault strike and fault dip using the coordinate transformation matrix. The displacements...

2024

Accuracy of the Molodensky Transformation Parameters used in Exploration and Production Industry for Transformation between Everest and WGS84 Datums; #41113 (2013)

Ghulam Mujtaba

Search and Discovery.com

... as the most reliable worldwide coordinate system. The combination of terrestrial and GPS networks has become very essential to benefit from the great...

2013

AAPG Archie Series, No. 1, Chapter 6: Petrophysical Properties of Thinly Bedded Formations

Q. R. Passey, K. E. Dahlberg, K. B. Sullivan, H. Yin, R. A. Brackett, Y. H. Xiao, and A. G. Guzmán-Garcia

AAPG Special Volumes

... of a tensor quantity, which for a given coordinate system takes the form of a 3×3 matrix [Zhdanov et al., 2001]. In this publication we will mostly...

2006

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