Deep Seismicity in the North Fiji Basin

Patricia Cooper, Loren W. Kroenke

Circum Pacific Council Publications

... of seismicity. The thin, slablike distribution of these hypocenters is similar to that in regions of active subduction. The horizontal extent of the relict...

Regression Models for Faulted Structural Surfaces

W. R. James

AAPG Bulletin

.... Suitable rotation and translation of geographic coordinates and depth values associated with boreholes on one side of the fault plane will accomplish...

Fracture Curving Between Tightly Spaced Horizontal Wells

Reza Safari, Xiaodan Ma, Richard E. Lewis, Uno Mutlu, Ahmad Ghassemi

Unconventional Resources Technology Conference (URTEC)

.... As the horizontal stresses became more isotropic it was easier to alter the local stress field and achieve the required principal stress trajectory rotation/swap...

Problems of Fault Nomenclature: DISCUSSION

Donald H. Kupfer

AAPG Bulletin

..., however, is three-dimensional and can not be represented in a plane. It is best described by components in a set of rectangular coordinates: a horizontal...

Discrete Fracture Characterization Applied To The Margarita Field, Bolivia

T. Zapata, H. Araujo

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... a programme to perform a sidetrack and drill a horizontal section was proposed. Both, image logs interpretation and outcrops analogue study, provided...

Late Cenozoic Faulting and Progressive Folding of Northern Santa Rosa Island and Southwestern Santa Barbara Channel, California

Christopher C Sorlien, Erick H McWayne, Marc J Kamerling, James M Galloway

Pacific Section of AAPG

... and mappable (>∼10 m of vertical separation) faults. Horizontal slip predominates, with both normal and reverse components on oblique slip faults (fig...

Abstract: Reflectivity Color Correction in Gabor Deconvolution; #90211 (2015)

Carlos Montana and Gary Margrave

Search and Discovery.com

..., surface reflections and geophone response (e.g. Robinson, 1985). Deconvolution is the process of removing the wavelet from the seismic trace...

Interpreting the Direction of the Gravity Gradient Tensor Eigenvectors: The Main Tidal Force and its Relation to the Curvature Parameters of the Equipotential Surface

Carlos Cevallos

Petroleum Exploration Society of Australia (PESA)

... the gravity gradient tensor about a vertical axis by an appropriate angle allows one to express its components as functions of the curvatures...

Pore Pressure and Elastic Moduli Estimation Considerations for a Simplified Geomechanical Model for Unconventional Plays. A case study in the Vaca Muerta Formation

Sergio Cuervo, Ezequiel Lombardo

Unconventional Resources Technology Conference (URTEC)

... stress rotation and in general low breakout angles. It is inferred from our failure models honoring breakout occurrence that horizontal stress...

Non-opaque and Opaque Grain Fabrics of Siltstones in Red Peak Member (Triassic), Central Wyoming

M. Dane Picard, Douglas D. Beckmann

Journal of Sedimentary Research (SEPM)

... facies and the upper platy facies at north Rawlins dip about 8-9 degrees; therefore the orientation data were not restored to horizontal. Rotation...

Initiation and growth of salt diapirs in tectonically stable settings: Upbuilding and megaflaps

Maria A. Nikolinakou, Mahdi Heidari, Michael R. Hudec, and Peter B. Flemings

AAPG Bulletin

..., the differential stress decreases (point a to point b in Figure 5) until all stress components become equal (after ∼37.6 m.y.). Further decrease in horizontal...

Abstract: Permeability Anisotropy in Microsucrosic Dolomites

Perry O. Roehl

GCAGS Transactions

... cos b - cos kx sin b, assumes that there is one maximum and one minimum value lying within 180° horizontal rotation, since permeability is a two...

Permeability Anisotropy in Microsucrosic Dolomites: ABSTRACT

Perry O. Roehl

AAPG Bulletin

... [EQUATION] assumes the existence of one maximum value and one minimum value lying within 180° horizontal rotation, because permeability is a two-directional...

Abstract: A Finite Element Method to Restore a Folded and Faulted Gridded Surface, by M. D. Ward, D. D. Clarke, and H. G. Adams; #90958 (1995).

Search and Discovery.com

Getting the Most out of Core during Fracture Studies

John Lorenz

Search and Discovery.com

... of the scribe rotation to the survey data, and depth correlations must be made by comparing the locations of spin-offs, connection breaks, rubble zones...

ABSTRACT: Long-Term Evolution of Normal Fault Systems: Controls on the Development and Evolution of Extensional Structures in the Neotectonic Kenyan Rift, East Africa; #90013 (2003)

Jonathan P. Dunningham, John R. Underhill, J. Barry Dawson

Search and Discovery.com

... of the footwall scarps and the flow thickness changes along the length of the scarps. Rotation of GPS points recorded along the upper surface of each onlapping...

ABSTRACT: 3-Dimensional Architecture of a Submarine Slope Channel Complex: Interpreting Stratal Architecture from Outcrops with the Aid of 3D Laser Scanning; #90017 (2003)

Jeremy J. Willson, Ru Smith, Irene Espejo

Search and Discovery.com

... capture of exposed sediment architectures enables removal of tectonic rotation and viewing of stratal geometries relative to palaeo-horizontal...

Getting the Most out of Core during Fracture Studies

John Lorenz

Search and Discovery.com

... of the scribe rotation to the survey data, and depth correlations must be made by comparing the locations of spin-offs, connection breaks, rubble zones...

Sliding Continents and Tidal and Rotational Forces

Frank Bursley Taylor

AAPG Special Volumes

... in a horizontal direction, especially in time geologically so recent as the Tertiary, would have been looked upon as much too venturesome; yet this theme is one...

Design and manufacture of Micro Turbine Tj-24

Eira P. Arief, Tri Yus Widjajanto Zaenuri, Firman Hartono

Indonesian Petroleum Association

... compressor efficiency, combustor operating temperature, and air mass flowrate. Some components needed to be re-designed to suit the new operating...

Structural styles in the deep-water fold and thrust belts of the Niger Delta

Freddy Corredor, John H. Shaw, Frank Bilotti

AAPG Bulletin

... fault ramps, with upward shallowing of dips in growth strata above the backlimbs suggesting components of progressive limb rotation. Forelimbs are short...

The Isolation of Settling-Velocity Fractions of Sand-Size Material: New Possibilities for the Settling Tube Technique: RESEARCH METHOD PAPER

Reinhard Oehmig , Klaus H. Michels

Journal of Sedimentary Research (SEPM)

... velocities the range of Y represents more easily entrainable components than the range of X (Komar and Clemens 1986). This indicates that the mixture...

Abstract: Depletion-induced Stress Orientation Changes in Bounded Reservoirs; #90063 (2007)

Search and Discovery.com

Calibration of PS Shear Wave Anisotropy in a Mississippi Lime Play, North-Central Oklahoma

Scott Singleton, Shihong Chi, Lisa Sanford, Paul Constance

Unconventional Resources Technology Conference (URTEC)

... rotation in the maximum horizontal stress direction with depth (time). An inverse problem can be formulated that solves for the optimal fast shear wave...

Deformation Structures of Sedimentary Origin in the Lower Limestone Shales (Basal Carboniferous) of South Pembrokeshire, Wales

Gilbert Kelling, Brian P. J. Williams

Journal of Sedimentary Research (SEPM)

...-horizontal shear deformation and translation. It is suggested that many structures may have originated through a combination of these two modes...