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The AAPG/Datapages Combined Publications Database
Showing 44,980 Results. Searched 200,691 documents.
Adaptive Eigenstructure Classification and Stochastic Decorrelation Filters for Coherent Interference Suppression in the Acoustic Zoom Method, #41503 (2014).
J. Guigne, S. Azad, C. Clements, A. Gogacz, W. Hunt, A. Pant, J. Stacey
Search and Discovery.com
... the following operation: u = u + u⊥ = P {u} + (u − P {u}) 5000 180 0 180 0 m=1 The spatial vector component of A corresponding to the central τi value...
2014
Stratigraphic Control on Oil Field Performance in Clastic Reservoirs of the Norwegian Continental Shelf: An Insight from Machine-learning Techniques, #30612 (2019).
Kachalla Aliyuda, John A. Howell, Adrian Hartley
Search and Discovery.com
... of producing wells Wells per unit volume GOR Gas injection i Hydrocarbon API i Number of wells i Multivariate Statistical Approach (PCA...
2019
Stratigraphy of a Marine Sandstone in the Upper Cretaceous Frontier Formation, Johnson and Natrona Counties, Wyoming
E. A. Merewether, M. C. Huff, W. A. Cobban, G. L. Skipp
Wyoming Geological Association
... Bed is composed of the following, in ascending order: a unit of soft, muddy, very fine grained sandstone that contains fossiliferous, septarian...
1998
An Efficient Optimization Workflow for Field-Scale In-Situ Upgrading Developments
Guohua Gao, Jeroen C. Vink, Faruk O. Alpak, Weijian Mo
Unconventional Resources Technology Conference (URTEC)
... is used to generate searching points such that can converge to an optimum (at least a local optimum). Here, a searching point is a vector that may...
2014
Pebble Orientation in Relation to Cross-Stratification a Statistical Study: NOTES
Shibdas Bandyopadhyay
Journal of Sedimentary Research (SEPM)
... in different portions of a cross-stratified unit. Graphical comparisons of the orientations of elongated pebbles from various parts of cross-stratified...
1971
The Sorong Fault Zone Kinematics: The Evidence of Divergence and Horsetail Structure at NW Bird's Head and Salawati Basin, West Papua, Indonesia; #30264 (2013)
Putri Riadini and Benyamin Sapiie
Search and Discovery.com
... INTERPRETATION NEW INTERPRETATION • Unit 7 – Top Early Pliocene Continuous, low – medium amplitude, medium – high frequency • Unit 6 – Top Miocene...
2013
Sedimentologic and Paleocurrent Study of Mauch Chunk Sandstones (Mississippian), South-Central and Western Pennsylvania
Momin Ul Hoque
AAPG Bulletin
... Univ., Baltimore, 412 p. Otto, G. H., 1938, The sedimentation unit and its use in field sampling: Jour. Geol., v. 46, p. 569-582. Passega, R., 1964...
1968
Acoustic waveform inversion with the Lippmann-Schwinger equation constraint
Rahul Sarkar, Biondo Biondi
International Meeting for Applied Geoscience and Energy (IMAGE)
... method” (Wright et al., 1999). Thus for a vector of penalty parameters λ = {λs,ω > 0 : s ∈ S, ω ∈ W }, we define a family of objective functions...
2022
New method for monitoring steam injection for Enhanced Oil Recovery (EOR) and for finding sources of geothermal heat
Gordon Stove, G. Colin Stove, Michael Robinson
Petroleum Exploration Society of Australia (PESA)
... into the ground. Once the signal has been sent to the transmitting antenna a signal is sent to the receiving control unit to synchronise collection...
2018
The Management of Reservoir Simulation in Caltex
William E. Gerbacia, Norman D. McMullen
Indonesian Petroleum Association
... companies. Project Management Background The reservoir simulation unit at CPI has evolved from a group which fluctuated from 2 to 3 engineers to its...
1991
Particle Fabric and Sedimentation of Structureless Sand, Southern Iceland
Robert A. Duller, Nigel P. Mountney, Andrew J. Russell
Journal of Sedimentary Research (SEPM)
.... 307–326. Hughes, S.R., and Druitt, T.H., 1998, Particle fabric in a small, type-2 ignimbrite flow unit (Laacher See, Germany) and implications...
2010
Cross-Strike Discontinuities (Transverse Zones): Lateral Variations within the Moine Thrust Zone, NW Scotland; the Cantabrian Arc, Northern Spain and Comparisons with Appalachian Transverse Structures, #50596 (2012)
Michael J. Kelly, Stuart M. Clarke, Graham Leslie, Graham Williams
Search and Discovery.com
...-Correcillas Unit, Cantabrian Arc, northern Spain. These are compared with structures situated within the Anniston, Bessemer and Harpersville transverse...
2012
Seals: The Role of Geomechanics
Gary D. Couples
AAPG Special Volumes
..., instead of the scalar shear that can be directly related to the Q scalar representation of stress state.) If a tangent line is drawn to the point...
2005
Numerical modeling of PP and PS reflections in DAS VSP
Joseph J. Cherayil, James L. Simmons
International Meeting for Applied Geoscience and Energy (IMAGE)
... particle motion in the direction parallel to the fiber. For each receiver point (x, z), a unit vector aligned with the DAS fiber is computed...
2024
Flow Simulation of Complex Fracture Systems With Unstructured Grids Using the Fast Marching Method
Changdong Yang, Xu Xue, Michael J. King, Akhil Datta-Gupta
Unconventional Resources Technology Conference (URTEC)
...n N×2 vector array, consisting of the x- and y-coordinates of all N mesh-points. ⃗ (𝑝) denotes the force ?? 𝐹 ⃗ vector at correspondin...
2017
Preferred Clast Orientation in Volcaniclastic Mass-Flow Deposits: Application of a New Photo-Statistical Method
David Karatson, Orsolya Sztano, Tamas Telbisz
Journal of Sedimentary Research (SEPM)
... fabric in various types of volcaniclastic mass-flow deposits. Fabric strength (R) is defined as the resultant vector length of clast alignment computed...
2002
Chapter 12. Theory, Origin: a New Theory of Fracture
Raymond C. Wilson
Utah Geological Association
... becomes tangent to the Coulomb fracture envelope (Fig. 2). Figure 2. Plot of the Mohr fracture envelopes. The straight line indicates a constant...
1974
Limitations on Resolution of Seismic Reflections and Geologic Detail Derivable from Them: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data
Robert E. Sheriff
AAPG Special Volumes
..., and reflected and transmitted compressional waves. The situation is simplest at perpendicular incidence (when the wavefront is tangent to the interface...
1977
Structure Beneath Continental Shelf, Northeastern Gulf of Mexico
John W. Antoine , James L. Harding
AAPG Bulletin
... (7,872 to 10,529 ft/sec) layer is continuous across the entire section. Both the upper and lower interfaces of this unit were easily traced on all...
1965
Indirect Estimation of Fluid Transport and Rock Mechanical Properties from Elemental Compositions: Implications for Sweet Spot Identification in the Montney Formation (Canada)
A. Ghanizadeh, B. Rashidi, C.R. Clarkson, A. Vahedian, C.P. Vocke, A.R. Ghanizadeh
Unconventional Resources Technology Conference (URTEC)
... Output Layer Hyperbolic Tangent Linear Sigmoid UCS: unconfined compressive strength; EC: elemental composition; MH: mechanical (rebound) hardness...
2017
Fracture Development and Mechanical Stratigraphy of Austin Chalk, Texas
Kevin Corbett , Melvin Friedman , John Spang
AAPG Bulletin
... mechanical unit to delineate their relative mechanical behavior and to correlate this behavior with intrinsic rock properties such as porosity...
1987
Stratigraphy and Sedimentation of the Paleocene-Eocene Hoback Formation Western Wyoming
Darwin R. Spearing
Wyoming Geological Association
... mapping of this unit, it is considered to be the northern extension of the Conglomerate Member of the Wasatch Formation (Oriel, 1962). Figure 3. Idealized...
1969
An Experimental High-Resolution Seismic Survey over Tin-Mine Ponds
Surendra Singh, G. A. Van Klinken
Geological Society of Malaysia (GSM)
.... The data-acquisition system employed is a typical analogue seismic EG & G unit used in conventional highresolution offshore marine seismic surveys...
1984
Ramgundam Sandstone: A Middle Proterozoic Shoal-Bar Sequence
A. Chaudhuri, James D. Howard
Journal of Sedimentary Research (SEPM)
..., is a moderately thick (120 m) unit composed of lens-shaped bodies of arkosic sandstone and interbedded sandstone and shale. Outcrops are mostly limited...
1985
Diagenesis in the Lacustrine Facies of the Albert Formation, New Brunswick, Canada: A Geochemical Evaluation
D.J. Mossman, J.F. Macey,, P.D. Lemmon
CSPG Bulletin
... sections through the lacustrine facies have been analyzed using R-mode factor vector analyses. Three distinct associations of metals are recognized...
1987