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The AAPG/Datapages Combined Publications Database

Showing 44,985 Results. Searched 200,619 documents.

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Stratigraphy and Structural Analysis in the Gunung Bijih (Erstberg) Mining District, Irian Jaya

Firdaus Akhmad

Indonesian Petroleum Association

... Formation and the Early to Middle Miocene, Kais Formation. a. Waripi Formation This formation is the basal unit of the New Guinea Limestone Group...

2002

Frequency-dependent seismic anomalies resulting from anisotropic permeabilities in hydrocarbon-bearing fractured porous rocks

Xuehua Chen, Xiaomin Jiang, Shengyi Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... matrix. ci and ρi are the hydraulic conductivity and density  of fractures, respectively. A is the far-field pressure gradient. E is the unit matrix...

2024

Frequency-domain GFDM with optimal coefficient for undulating interface

Zongfeng Jia, Guochen Wu, Bo Zhang, Hongying Liu, Sen Yang

International Meeting for Applied Geoscience and Energy (IMAGE)

... influence the point has on the central point. Partial derivative vector 𝐃 𝑢 of 𝑢0 is as shown below. Du  ( u0 u0  2u0  2u0  2u0 T , , , , ) x z...

2024

Direction correction and energy normalization of vibrator for 3D9C seismic wave data

Zhiwen Deng, Rui Zhang, Xiusong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... energy can be considered as a unit value, and only the directions need to be corrected. The matrix will be simplified as: 𝐷 = 𝑃3 −1 = −1 𝑠𝑖𝑛𝛽1...

2024

The direct linear electromagnetic inverse with constraints

Peter Walker

International Meeting for Applied Geoscience and Energy (IMAGE)

... the ontology, O, 0 ≤ O ≤ 1, of the problem to be the sum of the eigen-resistance unit vectors that span the model parameter space. The inverted...

2024

Seismic Modeling of Reservoir Heterogeneity Scales: An Application on Gas Hydrate Reservoirs

Search and Discovery.com

... σ1 values. To have a zero mean weight factor can be decided from the mean value: w1=μ2/(μ2-μ1), and to have a unit variance the second 2 variance...

2013

Abstract: Beyond the Dots in the Box - Microseismicity-Constrained Fracture Models for Reservoir Simulation; #90172 (2014)

Leo Eisner, Sherilyn Williams-Stroud, Andrew Hill, Peter Duncan, Mike Thornton

Search and Discovery.com

...  r c 3 (2) Where ρ is density, r is the distance between source and receiver, c is P-wave velocity, γi are components of a unit vector from source...

2014

Abstract: Seismic Efficiency, Overshoot and Enhanced Dynamic Weaking of Fractures Associated with Stimulation in Heavy Oil Reservoirs; #90224 (2015)

Lindsey N. Meighan, Ted Urbancic, and Adam Baig

Search and Discovery.com

... energy per unit area of slip. Thus, we expect source properties of smaller and larger earthquakes to vary. The amount of energy available to be radiated...

2015

Facies Distribution in Collapsed Carbonate Karsts: A Mechanical Approach; #50492 (2011)

Marc-Olivier Titeux, Xavier Janson, Sanjay Srinivasan, and Larry Lake

Search and Discovery.com

... vector C: damping matrix Fint and Fext: internal and external forces Material properties and fracturing Elfen has a single surface rate independent...

2011

Antialiasing 5D Interpolation; #41497 (2014)

Stephen K. Chiu

Search and Discovery.com

... example is offset-vector-tile (OVT) inline, OVT crossline, inline within an OVT, crossline within an OVT, and time. Since sampling in time is always...

2014

Improving Resolution and Clarity with Neural Networks; #41911 (2016)

Christopher P. Ross

Search and Discovery.com

... accurately the thicker carbonate strata, and better approximates the lower impedance clastic unit’s thicknesses. Since it was computed at half of the sample...

2016

A Parsimonious Approach to Gravity Inversion for Salt Shape Delineation; #42417 (2019)

Simone Re, Luca Masnaghetti, Elena Medina

Search and Discovery.com

... (purple curve in Figure 1b), we obtain a residual anomaly (green line) that is caused by a unit that has the same shape of the salt body and a negative...

2019

The Climate System - A Brief Primer

Eric J. Barron, George T. Moore

Special Publications of SEPM

... of energy passing through a unit surface, perpendicular to the wave, per unit time and is measured in Watts per square meter. The energy flux from the sun...

1994

Notes: "Basal Sandstone", Existence and Hydrocarbon Potential in the North Sumatra Basin: A Case Study in Batang Sarangan, Langkat and Gebang Areas

Slamet Riadhy, Adji Gutomo

Indonesian Petroleum Association

... Slamet Riadhy, Adji Gutomo 1993 265 283 The Basal Sandstone was recognized as an equivalent unit to the Parapat/Bruksah Formation of Eocene-Oligocene...

1993

The Application of Lattice Gas Automata to Study Fluid Flow in Porous Media

Dedy Kristanto, Mariyamni Awang

Indonesian Petroleum Association

... is divided into the triangular lattices which facilitates to ensure isotropic particle motion as shown in Figure 1. The particles of unit mass and unit...

2002

Quantifying Crack Properties of Source Rocks from Elastic Stress Sensitivity

Jihui Ding, Anthony C. Clark, Tiziana Vanorio, Adam D. Jew, John R. Bargar

Unconventional Resources Technology Conference (URTEC)

... with a surface area A r ; nir , n rj , nkr , and nlr are ith, jth, kth, and lth components of the unit vector normal to the surface of the rth crack...

2021

A Long-Axis Clast Fabric Comparison of the Squantum "Tillite", Massachusetts and the Gowganda Formation, Ontario: NOTES

John F. Lindsay , C. H. Summerson, P. J. Barrett

Journal of Sedimentary Research (SEPM)

... to determine the direction of the local paleoslope. the vector resultant for each data set was determined using the method of Fisher (1953). The radius...

1970

Yukon River Sediment on the Northernmost Bering Sea Shelf

Dean A. Mcmanus, Kolla Venkatarathnam, David M. Hopkins, C. Hans Nelson

Journal of Sedimentary Research (SEPM)

... Cenozoic time: Internord, no. 12, p. 121-150. IMBRIE, J., AND TJ. H. VAN ANDEL, 1964, Vector analysis of heavy-mineral data: Geol. Soc. America Bull., v...

1974

Abstract: Enhancing Drilling Efficiency Using a New Robust Correlation of Rate of penetration; #91204 (2023)

Mohammed Murif Al-Rubaii

Search and Discovery.com

... of drilling and has a defined drilling unit in most of times that is feet per hours (ft/hr) or meter per hours (m/hr). Rate of penetration (ROP) while...

2023

Upper Carboniferous Fine-Grained Turbiditic Sandstones from Southwest England: A Model for Growth in an Ancient, Delta-Fed Subsea Fan

John Melvin

Journal of Sedimentary Research (SEPM)

... in the coastal section 200 m south of Duckpool, a paired unit of lithofacies 1 and 2 is present, which passes within a few meters along strike through...

1986

Antarctic Circumpolar Deep Water: A Quaternary Paleoflow Record from the Northern Scotia Sea, South Atlantic Ocean

John A. Howe , Carol J. Pudsey

Journal of Sedimentary Research (SEPM)

... for the upper meter. Vector-averaged speeds for the one-year and two-year periods were only 2.9 cm s-1 towards 077° and 065°. Figure 2B...

1999

Reexamination of Mohnian Type Section: ABSTRACT

David W. Ford

AAPG Bulletin

... than Hoots' unit 5. Bulimina unvigerinaformis, formerly considered not to range above unit 6, has been found through unit 8 and rarely in unit 9...

1973

Magnetic Fabric of Some IPOD Sediment Cores from the Southwestern Sector of Africa

S. L. Folami

Journal of Sedimentary Research (SEPM)

... of the DSDP Leg 75) coring proceeded from a depth of 125 m sub-bottom from Unit 2 (Table 1). The dominant lithologies in Unit 2 are nannofossil marls...

1988

Grandfather Mountain Formation: Depositional Environment, Provenance, and Tectonic Setting of Late Precambrian Alluvium in the Blue Ridge of North Carolina

Frederic L. Schwab

Journal of Sedimentary Research (SEPM)

..., and siltstone interbedded with basalt and rhyolite. The unit is between 3,000 and 9,000 m thick and is exposed only within the Grandfather Mountain window...

1977

Eolian-Aqueous Interactions in the Development of a Proterozoic Sand Sheet: Shikaoda Formation, Hosangabad, India

Tapan Chakraborty, Chandan Chakraborty

Journal of Sedimentary Research (SEPM)

... identified an eolian unit comprising a small longitudinal dune deposit within the Shikaoda Formation occurring around Maihar (Fig. 1). The succession...

2001

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