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The AAPG/Datapages Combined Publications Database
Showing 4,126 Results. Searched 196,377 documents.
Into the Abyss!
William Wills
GEO ExPro Magazine
... incorporates localised low velocity zones or takes into account anisotropy, resulting in velocity models which may be too deep and too steep, thus...
2012
Log Evaluation of a Fractured Reservoir Monterey Shale
D. E. Cannon
Pacific Section SEPM
... between the R x o and Rj measurements due to anisotropy. Muds need not be salted to attain the desired resistivities. The same effect can be achieved...
1981
Grain Orientation in Shallow Marine -- Shoreface Sandstones
John W. Shelton, H. Richard Burman
Oklahoma City Geological Society
... depositing current. Grain orientation was measured primarily by use o Shell Development Company's COBRA a conductivity anisotropy instrument...
1976
Petrophysics in High Angle and Horizontal Wells
David Maggs, Silvia Lattuada, Roger Griffiths, Mauricio Mele, Antonio Valdisturlo
GEO ExPro Magazine
... layers, local layering or resistivity anisotropy, and polarisation Geological section of example well A showing the target layers and faulting. Note...
2014
Introduction to Ground-Water Hydrology, 1993 - Introduction
New Orleans Geological Society
...-rock aquifers is anisotropy. All that means is that ground-water flow is easier is some directions than others. This has implications for contaminant...
1993
Introduction to Ground-Water Hydrology, 1993 - The Theis Equation
New Orleans Geological Society
... aquifers, partially-penetrating wells, anisotropy, and dozens of other possibilities. A good source for exploring these topics is Kruseman and de Ridder...
1993
Improving Reservoir Characterisation
Lucy Macgregor
GEO ExPro Magazine
... and resistivity anisotropy. Second, these physical properties are then coupled through rock physics relations and jointly interpreted to provide...
2015
Iraqi Kurdistan: Its All in the Timing
Abdullah Awdal, Jon Gutmanis
GEO ExPro Magazine
... they are evidenced in production data. In folded rocks, the existence of a pre-fold fracture network contributes to a mechanical anisotropy of the strata...
2015
Laboratory Determination of the Continuous Stress-Dependent Permeability of Unconventional Oil Reservoir Rocks
Daisuke Katsuki, Marte Gutierrez, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
... anisotropy of microstructure attributed to the planar clay minerals aligned in a specific direction. Such structural anisotropy is also related...
2013
Rediscover Your Reservoir
Marybeth Wegner, Grant A. Myers, Nathan Nicholas
GEO ExPro Magazine
.... Anisotropy affects it, a b as the material polishes up differently based on which face is oriented upwards. This forces the petrographer to locate...
2018
An Innovative Workflow to Refine Exploration Phase Assessment of Unconventional Prospects; Using Xrf Analysis and 3-D Geo-Modeling Techniques
Francois Marechal
Unconventional Resources Technology Conference (URTEC)
... anisotropy in the 140 to 150 degree range – translating to a north by northwest trend. This can be seen in the variography for zone 3 and 5 in the table...
2014
Flow Modeling in Multi-Stage Hydraulic Fracturing Patterns to Optimize Shale Reservoir Production
Abdulraof Almulhim, Azra N. Tutuncu, Hossein Kazemi
Unconventional Resources Technology Conference (URTEC)
... (psi) (Rafiee et al., 2012a). Stress anisotropy is defined as the difference between the principal maximum and minimum horizontal stresses...
2014
ABSTRACT: Influence of the Petroleum Chemical Composition on the Coke Quality
Maria M. Escallón, Parvana Gafarova, Gareth D. Mitchell, Ömer Gül, Harold H. Schobert, Leslie Rudnick
The Society for Organic Petrology (TSOP)
... under polarized light. A higher reflecting carbon textural element identified from decant oil materials that displays optical anisotropy...
2005
Seismic Foldout: New Geo Streamer X data for exploration, ILX and appraisal in the Norwegian Sea
Kjetil Roverud, Stefan Möller, Eric Mueller, Jens Beenfeldt, PGS
GEO ExPro Magazine
... impedance contrasts, rough surfaces, complex velocities, and complex anisotropy. In addition, shallow glacial morphology generates strong noise and multiples...
2023
Frequency Attenuation: A Fracture Indicator
Ilyas J. Najmuddin
Houston Geological Society Bulletin
..., Geophysics, Vol. 50, p. 11311. Pyrak-Nolte, L. J., L. R. Myer, and N. G. Cook, 1990, Anisotropy in Seismic Velocities and Amplitudes from Multiple...
2001
Rock Mechanical Behavior at the Inch Scale in a Thinly Laminated Unconventional Formation
Smaine Zeroug, Bikash K. Sinha, Ting Lei, John Jeffers
Unconventional Resources Technology Conference (URTEC)
..., their averaging effects can be parametrized in terms of acoustic anisotropy. For a vertical pilot well penetrating a horizontally layered unconventional...
2016
New Insights Into the Geological Development of the Deepwater Mahakam Delta and Makassar Straits
Peter Baillie, Paul Gilleran, Wayne Clark, Steve Moss, Alan Stein, Edy Hermantoro, Suryadi Oemar
Indonesian Petroleum Association
... of anisotropy, the focus for small-scale fault movements. The result of modeling of the gravity data across the Makassar Straits has supported the oceanic...
2000
Utilizing A Viscoplastic Stress Relaxation Model to Study Vertical Hydraulic Fracture Propagation in Permian Basin
Shaochuan Xu, Fatemeh Rassouli, Mark Zoback
Unconventional Resources Technology Conference (URTEC)
... the anisotropy of both Young’s modulus and stress relaxation index, n More viscoplastic constitutive parameters across North America were measured in our...
2017
Direct imaging of alteration with high-resolution hard-rock 3D seismic data at the Darlot Gold Mine
G. Hird, W. Turner
Petroleum Exploration Society of Australia (PESA)
... contrast at the alteration halo front, and, Mineral alignment in shears producing anisotropy of Vp. Rock property measurements on core drilled from...
2019
New insights into the Exmouth Sub-basin: Seismic acquisition, processing and imaging
Alexander Karvelas, Bee Jik Lim, Lianping Zhang, Haryo Trihutomo, Oliver Schenk, Sugandha Tewari
Petroleum Exploration Society of Australia (PESA)
... workflow, applying seismic azimuthal anisotropy addressed the complex azimuthaldependent velocity variation within the Barrow Group interval...
2019
Mapping Unconventional Reservoir Stress Conditions: An Integrated Workflow Using Geological, Stimulation and Microseismic Data
Orlando J. Teran
Unconventional Resources Technology Conference (URTEC)
... is a good indicator of a relatively high horizontal stress anisotropy. Another interesting aspect of the fracture systems in this reservoir...
2017
Geostatistics and its Application for the Evaluation of Tin Deposits
L. Sandjivy
Geological Society of Malaysia (GSM)
...) show the spatial Several characteristics of the deposit such as anisotropy, continuity or small scale variations, zones of influence of a sample can...
1982
Lithology-Controlled Stress Variations: A Case Study of the Woodford Shale, Oklahoma
Xiaodong Ma, Mark Zoback
Unconventional Resources Technology Conference (URTEC)
... anisotropy (SV - Shmin), given that the formation is close to the frictional equilibrium and the stress regime remains relatively constant (i.e., constant...
2017
3D Geomechanical Analysis of Refracturing of Horizontal Wells
Dharmendra Kumar, Ahmad Ghassemi
Unconventional Resources Technology Conference (URTEC)
...). In this case, the fracture propagation is governed by the in-situ stress anisotropy and the degree of fracture curving depends on the magnitude...
2017
Memorial: Perry Owen Roehl (1925-2010)
John Long
AAPG Non-Technical and Memorials
... Anisotropy in Microsucrosic Dolomites” and subsequently performed various duties for GCAGS. He presented many talks at SIPES meetings and served several...
2011