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The AAPG/Datapages Combined Publications Database

Showing 6,613 Results. Searched 188,958 documents.

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Sonic Log Analysis from Isotropic and Anisotropic Media In Carbonate Reservoir, the Case Study at Stella Alpina Field

Wahyu Tri Sutrisno, Septian Prahastudhi, Ari Teguh Sugiarto, Ayi Syaeful Bahri, Dwa Desa Warnana, Yulia Putri Wulandari

Indonesian Petroleum Association

... difficult to measure): Rock formations with a vertical transverse isotropy (VTI) constituent are defined by a stiffness matrix with five independent...

2014

Fracture Curving Between Tightly Spaced Horizontal Wells

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

Unconventional Resources Technology Conference (URTEC)

....) (SHmax) Reservoir Height: 100 m Fracture Height: 70 m (a) (b) (Shmin) Figure 6. (a) Single well with five parallel transverse fractures...

2015

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... demonstrated the impact of a specific type of anisotropy, namely tilted transverse isotropy (TTI), on the positioning of pre-drilling target locations...

2015

3-D Geomechanical Modeling for Field Development of a Colombian Shale Play

Leonardo Arias Medina, Azra N. Tutuncu

Unconventional Resources Technology Conference (URTEC)

.... Pre-stack time migration (PSTM) was used to populate the model and Vertical Transverse Isotropy (VTI) was applied to calculate the anisotropic...

2019

Abstract: The Effect of Resistivity Anisotropy on Transient Electromagnetic Earth Responses; #90171 (2013)

Bruce Hobbs, Dieter Werthmuller, and Folke Engelmark

Search and Discovery.com

...). For general anisotropy the physical property under consideration may vary in all three spatial directions. The simplest problems involve transverse...

2013

Anisotropic depth migration in the Colombian Llanos Foothills as a key to understanding the structure in depth

emamedov

Search and Discovery.com

... of data where transverse isotropy with a tilted axis of symmetry is present. The dashed lines represent the result of isotropic processing...

Unknown

A Simplified Workflow for Estimation of Elastic Anisotropy in Vaca Muerta, #42002 (2017).

Ezequiel Lombardo, S. Cuervo

Search and Discovery.com

... is negligible. This specific case of anisotropy, common in shale plays, is known as TIV (transverse isotropic vertical), which is a fairly accurate...

2017

What Are You Interpreting? Your Seismic Image Could Be Misleading You!

R. T. Newrick, E. P. Gomez, J. K. Pullishy, S. D. Jensen, J. M. de Armas

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... model, Vεδθ, in the case of anisotropy, specifically transverse isotropy that may be described using the Thomsen parameters ε and δ (Thomsen, 1986...

2006

Abstract: An Effective Medium Model for a Fractured Carbonate Reservoir Undergoing CO2 Flood at Weyburn Field, Saskatchewan; #90174 (2014)

Chris Blackwood

Search and Discovery.com

... is extended to the case of horizontal transverse isotropy (HTI) by incorporating fluid-saturated fractures through linear slip theory. Introduction The Weyburn...

2014

Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

... transverse isotropy (VTI) was used, with an effective η incorporating both the effects of the anisotropy and the curved raypaths of the depth-dependent...

2014

Incorporation of Geology, Wells, and Rock Physics into Anisotropy Estimation for Seismic Depth Imaging Enables True Earth ModelŽ, #40828 (2011)

Huyen Bui, Peck-Hwa David Ng, Jenny Zhou, Chih-Wen Kue, Mart Smith

Search and Discovery.com

... to compare how we can improve with tilted transverse isotropy (TTI). Case Study The well under consideration is located in the Green Canyon area...

2011

Orthorhombic Imaging for Orthogonal Wide Azimuth Surveys in Mississippi Canyon, Gulf of Mexico; #30391 (2014)

Yang He, Adam Gersztenkorn, Sherry Yang, Bin Wang

Search and Discovery.com

... fractures are present, azimuthal anisotropy needs to be seriously considered. Tilted Transverse Isotropy (TTI), which only considers polar anisotropy...

2014

Using Multiazimuth Seismic Data for Anisotropy Estimation in an Unconventional Reservoir

Surabhi Mishra

Petroleum Exploration Society of Australia (PESA)

... be simplified into two types of anisotropy: 1) 2) Vertical Transverse Isotropy (VTI) with a vertical axis of symmetry. This is associated with layering...

2018

Permeability Multiplier Prediction Utilizing Wide Azimuth 3D OBC Seismic Data; #41349 (2014)

T. Matarid

Search and Discovery.com

... propagation in anisotropic heterogeneous media can be simplified in two types of anisotropy and they are Vertical Transverse Isotropy (VTI...

2014

Using Sonic and Resistivity Effective Medium Theories to Quantify the Influence of Rock Fabric on the Mechanical Properties of Organic Mudrocks

Paul Sayar, Carlos Torres-Verdín

Unconventional Resources Technology Conference (URTEC)

... axis, with normal to alternating planes of isotropy. Vertically transverse isotropy is a manifestation of the fine layering of shale and sand layers...

2015

Joint VTI and Mud Slowness Inversion Using Multiple Modes and Adaptive Weighting

Mark Collins

Unconventional Resources Technology Conference (URTEC)

... to measure azimuthal anisotropy, also known as horizontal transverse isotropy (HTI). The presence of azimuthal anisotropy is an indication of dipping beds...

2013

Unleashing the Mad Dog

Thomas Smith

GEO ExPro Magazine

... orientation; (C) the 2005 addition of the wide azimuth towed steamer data; and (D) the 2009 tilted transverse isotropy (TTI) reprocessing of that data. Dr...

2013

PSDM for Unconventional Reservoirs? A Niobrara Shale Case Study

Morgan P. Brown, Joseph H. Higginbotham, Dave List, Chris Lang

Unconventional Resources Technology Conference (URTEC)

... the well tops. Shaly sediments exhibiting vertical transverse isotropy (VTI) are the culprit. The Thomsen  parameter primarily controls depthing...

2013

Detailed Oriented Seismic Processing Leads to More Accurate Elastic Attribute Results in the Delaware Basin

Marianne Rauch-Davies, Steve Smith, Alyona Bashkirtseva Hall

Unconventional Resources Technology Conference (URTEC)

... in acquisition holes. Vertical transverse isotropy (VTI) was corrected and horizontal transverse isotropy (HTI) was investigated but the effect was not large...

2017

PSDM for unconventional reservoirs? A Niobrara Shale case study; #80405 (2014)

Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez, Dave List, Chris Lang

Search and Discovery.com

... transverse isotropy (VTI) are the culprit. The Thomsen δ parameter primarily controls depthing. The anellipticity parameter η, which is ε-δ, causes so...

2014

The Effect of Resistivity Anisotropy on Earth Impulse Responses

Folke Engelmark, Bruce Hobbs, Dieter Werthmüller

Indonesian Petroleum Association

... results, such as target depth estimated too shallow, exaggerated transverse resistivity for the target zone, and underestimated background resistivities...

2009

Integration of Microseismic With Rock Properties From Multi-Component Seismic Data, Mississippi Lime Play, North-Central Oklahoma

Scott W. Singleton, Shihong Chi, Crystal Lapaire, Lisa Sanford, Paul Constance

Unconventional Resources Technology Conference (URTEC)

... as dynamic (amplitude) variations. These variations can occur because of layered stratigraphy, which causes vertical and tilted transverse isotropy (VTI...

2015

Integrating Data Types for Reservoir Characterisation

Scott Singleton

GEO ExPro Magazine

... Thomsen’s gamma (ratio of vertical to horizontal shear velocity), meaning that it does not contain Vertical Transverse Isotropy (layering) anisotropy...

2015

Abstract: Mechanism of Transverse Petroleum Migration

Henry David Olson

Houston Geological Society Bulletin

...Abstract: Mechanism of Transverse Petroleum Migration Henry David Olson 1965 20 20...

1965

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