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The AAPG/Datapages Combined Publications Database
Showing 44,985 Results. Searched 200,616 documents.
Facies Relations in the Eocene Tejon Formation of the San Emigdio and Western Tehachapi Mountains, California
T. H. Nilsen
Pacific Section of AAPG
... or absent over topographically high areas. The composition and lithology of the Uvas are characterized by abrupt lateral and vertical changes. The unit...
1973
Magnetic and Electrical Study of a Roll-Front URanium Deposit in the Denver Basin, Colorado
Louis J. O'Connor, Bruce D. Smith
Rocky Mountain Association of Geologists
.... This study reports on the results of surface electrical and magnetic measurements made over a roll-front-type uranium deposit in the basal unit...
1978
Use of Gravimetry for Direct Exploration for Oil and Gas
I. O. Tsimel’zon
Petroleum Geology: A Digest of Russian Literature
... the Khoshmenzil gas field; they yielded a very ambiguous vector picture. Figure 1. Map of the gravity anomaly in the region Duzlak-Dagestan Ogni (compiled...
1959
Visualization of oil and gas reservoir simulation models based on large-scale unstructured mesh
Pavel Novikov, Denis Sabitov, Nikita Bukhanov, Marwan Charara, Michel Cancelliere, Fahad Rashed, Abdulaziz Baiz
International Meeting for Applied Geoscience and Energy (IMAGE)
...ed slicing algorithm is implemented into the second plugin. The slicing plane’s unit normal vector ⃗𝑛3×1 and a point on this plane 𝑐1×3 are control...
2022
Fracture, Fracture Everywhere: Part II: How and Why Do Fractures Occur in Rocks?
Rasoul Sorkhabi
GEO ExPro Magazine
...’s surface. Fracture Modes Stress: Principal, Normal and Shear Stress (σ) and pressure (P) are both defined as force (F) per unit area (A), and have...
2014
Application of Common Contour Binning (CCB) and Back Propagation Neural Network (BPNN) for Oil Water Contact Prediction in Carbonate Reservoir (The Case Study at G404 Field)
Wahyu Tri Sutrisno, Septian Prahastudhi, Ayi Syaeful Bahri, Yulia Putri Wulandari
Indonesian Petroleum Association
... layers until they reach the output layer. Every processing unit sums its respective inputs and then applies a function to compute its output. The most...
2013
Magnetic Stratigraphy and Tectonic Rotation of the Oligocene Alsea, Yaquina, and Nye Formations, Lincoln County, Oregon
Donald R. Prothero, Clio Z. Bitboul, George W. Moore, Alan R. Niem
Pacific Section SEPM
... the Oligocene has been controversial. It also yields Zemorrian benthic foraminifera, and marine mammals. Conformably overlying this unit is the Nye...
2001
Cross-Bedding Directions in Upper Triassic Sandstones of West Texas
Charles J. Cazeau
Journal of Sedimentary Research (SEPM)
... outcrops exhibited more than one well-defined sedimentation unit although all sedimentation units were measured when present. The study was later...
1960
ABSTRACT: Dating Groundwater Associated with Coalbed Methane Gas Wells in the San Juan Basin, USA; #90013 (2003)
ZHENG ZHOU, CHRIS J. BALLENTINE, ROLF KIPFER, MARTIN SCHOELL, STEVE THIBODEAUX
Search and Discovery.com
... of groundwater in the generation of coalbed methane remains an open question. Some research shows that it provides the vector for microbial fertilization...
2003
Structural Modification of Corals in Relation to Waves and Currents: Reef Biota
Richard R. Graus , John A. Chamberlain Jr. , Alexa M. Boker
AAPG Special Volumes
... branch in a current (heavy arrow), dr, drag; lf, lift; w, weight; WN, normal weight component; FN, vector sum of normal lift and drag components; FL...
1977
Flow Behavior Analysis of Multi-Well Communication Through Secondary Fractures in Tight Oil Reservoirs Using a Laplace Domain Hybrid Model: A Field Example From Western Canadian Sedimentary Basin
Pin Jia, Linsong Cheng, Christopher Clarkson, J.D. Williams-Kovacs
Unconventional Resources Technology Conference (URTEC)
... the elements are determined by the transmissibility of the adjacent segments. B is an NS×NS diagonal matrix and b is an NS×1 vector. For matix flow...
2017
Finite Element Modeling of PDC Cutter Performance in Air Drilling Applications for Geothermal Wells
Carlos Vega-Ortiz, Eric Edelman, Pengju Xing, John D. McLennan
Unconventional Resources Technology Conference (URTEC)
... how thermal energy is absorbed and dissipated, with WC’s high density allowing it to store more thermal energy per unit volume than HWS or PDC...
2025
Hydrocarbon Generation Indication from Source Rock to Reservoir Rock: Case Studies of Anambra and Abakaliki Basins South-Eastern Nigeria
Samuel Salufu, Rita Onolemhemhen, Sunday Isehunwa
Africa Energy and Technology Conference, 2016
... Anambra Basin fall out of these ranges. The shale unit in the Mamu Formation is the major source rock for oil generation in the Anambra Basin while others...
2016
Paleomagnetism of Franciscan Basalt, Marin County, California, Revisited
Sherman Gromme
Pacific Section SEPM
... downward. D, declination In degrees eastward. PLA, latitude of pole in degrees north. PLO, longitude of pole in degrees east. R, vector sum of N unit...
1984
Sublittoral Sheet Sandstones
Roland Goldring, Paul Bridges
Journal of Sedimentary Research (SEPM)
... of a series of sections through two specimens of laminated, very fine sandstones revealed preferred orientations, but a wide range in the vector mean (Figs. 4...
1973
Upper Precambrian to Paleozoic Paleogeographic Reconstruction of the Mojave Desert, California
Mark W. Martin, J. Douglas Walker
Pacific Section SEPM
... to be Precambrian age, although the unit probably was derived from mainly Mesozoic plutonic, and Cambrian to Permian stratified rocks. Similar very...
1991
Depositional Systems, Upper Cretaceous Mancos Shale and Mesaverde Group, Northwestern Colorado: Part II
Louise W. Kiteley
Rocky Mountain Section (SEPM)
... and shales. Descriptive and Interpretive Data Unit (1) The unnamed sandstone member of B. asperiformis age is a 10.9 m thick coarsening upward, fine grained...
1981
Genesis and Evolution of a Mid-Shelf, Storm-Built Sand Ridge, New Jersey Continental Shelf, U.S.A.
John W. Snedden, Roderick W. Tillman, Stephen J. Culver
Journal of Sedimentary Research (SEPM)
..., Influence of superimposed bedforms and flow unsteadiness on formation of cross strata in dunes and unit bars: Sedimentary Geology, v. 202, p. 281–296...
2011
Acquisition geometry design based on full-wavefield migration
Billy A. Revelo Obando, Gerrit Blacquire
International Meeting for Applied Geoscience and Energy (IMAGE)
... density function that determines the number of receivers per unit area. We optimize this receiver density function through an iterative gradient...
2022
Nonuniform dispersed source arrays for broadband seismic acquisition
Joaqun A. Acedo, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... components covers the entire temporal and spatial bandwidth requirements. Given this configuration, each regularly sampled source unit needs different Nyquist...
2023
Viking Lowstand Deposits in West Central Saskatchewan: Depositional Model for the Reservoir Units in Dodsland-Hoosier Area, Saskatchewan, Canada, #51076 (2015).
Hasan Ferdous, Katherine Bergman, Hairuo Qing
Search and Discovery.com
... of Skolithos and Thalassinoids up to 5-7 cm long that penetrate into the underlying unit. The mudstone and trace fossil assemblage suggest...
2015
The Semail Gap Fault Zone (Oman Mountains) - Influences of an Inherited Basement Structure on Cenozoic Deformation?; #51662 (2020)
Andreas Scharf, Frank Mattern, Daniel Moraetis, Ivan Callegari, Christian Weidle
Search and Discovery.com
... to Miocene in the course of orogenic collapse (Scharf et al., 2019). The hanging-wall block appears to be a relatively thick but thin-skinned gravity unit...
2020
Interpreting pre-vegetation landscape dynamics: The Cambrian Lower Mount Simon Sandstone, Illinois, U.S.A.
Arnold Jan H. Reesink,, Jim Best, Jared T. Freiburg, Nathan D. Webb, Charles C. Monson, Robert W. Ritzi
Journal of Sedimentary Research (SEPM)
... by dunes, and two unit bars with superimposed dunes. The river channel was oriented towards the shoreline in the east (mean vector 88°), and its flow...
2020
Mechanics of Hydraulic Fracturing
M. King Hubbert , David G. Willis
AAPG Special Volumes
... reduced, thereby increasing the radius of the stress circle until it becomes tangent to the Mohr envelopes. At this point, unstable conditions of shear...
1972
Dextral Transpression and Late Carboniferous Sedimentation in the Fundy Coastal Zone of Southern New Brunswick
R. Damian Nance
CSPG Special Publications
... Group” (Hayes and Howell, 1937; Alcock, 1938). The “West Beach Formation” was erected to describe a largely bimodal volcanic unit comprising felsic tuff...
1987