Third and Fourth Dimensions in Exploration

John Daly

AAPG Bulletin

... point to be reflected by each of these straight segments is shown in the lower right and lower left of the figure. The dashed line tangent to the left...

Dimensional Grain Orientation Studies of Recent Coastal Sands

Joseph R. Curray

AAPG Bulletin

..., 1956). The system is briefly to consider an individual grain-orientation observation as a vector with direction and with unit magnitude. Because...

Beaches: Part 3. Deposits Associated with Strand Line

James H. C. Martens

AAPG Special Volumes

... and tangent of the slope of the foreshore for more than one hundred sands from New Jersey beaches, and summarizes the results of these measurements...

Methodology for Enhancing and Evaluating Geologic Effects of Time Series Models: A Case of Ground Response in Santa Clara Valley, California, #41097 (2012)

Olusola Samuel-Ojo, Lorne Olfman, Linda A. Reinen, Arjuna Flenner, David D. Oglesby, Gareth J. Funning

Search and Discovery.com

... models are built. These models constitute threads, a computer executable unit that can concurrently be processed by server clusters to achieve high...

Structurally controlled hydrothermal dolomite reservoir facies: An overview

Graham R. Davies, Langhorne B. Smith Jr.

AAPG Bulletin

..., 1990) (Figure 9). If correctly identified as to shear type, the orientation of the en echelon structures may allow determination of the vector (dextral...

Introduction to Fractals

Roy E. Plotnick

Special Publications of SEPM

... a tangent of the circle. A self-similar fractal object, the Koch curve, is illustrated in Figure 1.31D. The self-similarity of the Koch curve can...

Experimental Deformation of Sedimentary Rocks Under Confining Pressure: Pore Pressure Tests

John Handin , Rex V. Hager, Jr. , Melvin Friedman , James N. Feather

AAPG Bulletin

....(FOOTNOTE 3) Several-fold increases of ultimate FOOTNOTE 3. The bar, the fundamental unit of pressure, is 106 dynes/cm.2; 1 bar is approximately 14.5 psi...

The Elements of the Oil-Well-Spacing Problem. A Summary of the Factors Influencing the Distance Apart at Which Oil Wells May Be Economically Spaced

Lester C. Uren

AAPG Bulletin

... and gas produced during unit time intervals. Laboratory studies have shown that the pressure resulting from natural gas provides a force of great...

BASEMENT WEDGES, BACK-THRUSTING AND THIN-SKINNED DEFORMATION IN THE NORTHWEST BEARTOOTH MOUNTAINS NEAR LIVINGSTON, MONTANA

E.A. Robbins, E.A. Erslev

Montana Geological Society

... of en echelon folds, characteristic of strike-slip motion between covered basement blocks (Garrett, 1972). The presence...

Advanced Machine Learning Methods for Prediction of Fracture Closure Pressure, ClosureTime, Permeability and Time to Late Flow Regimes From DFIT

Mohamed Ibrahim Mohamed, Dinesh Mehta, Mohamed Salah, Mazher Ibrahim, Erdal Ozkan

Unconventional Resources Technology Conference (URTEC)

... a model that can be used to predict the new output from the same type of feature vector. In the past decade, machine learning has been used in areas...

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...

Locating, permitting, and operation of construction aggregate mining operation in Alabama. Road Logs.

Robert S. Fousek

Alabama Geological Society

... along the CSX right-of-way. Reconnaissance mapping suggests that this unit cores a broad northeast-trending fold and exhibits a general foliation...

Artificial Lift Selection and Its Applications for Deep Horizontal Wells in the Unconventional Reservoirs

Piyush Pankaj, Katherine Escobar Patron, Haidan Lu

Unconventional Resources Technology Conference (URTEC)

... the unit on an incline in the straight tangent section of the wellbore curve around the kickoff point. Special deviation analysis includes maximum DLS...

Modeling of Distributed Strain Sensing (DSS) and Distributed Acoustic Sensing (DAS) Incorporating Hydraulic and Natural Fractures Interaction

Kildare George Ramos Gurjao, Eduardo Gildin, Richard Gibson, Mark Everett

Unconventional Resources Technology Conference (URTEC)

...) an interrogator unit generates a light pulse that propagates along fiber and interacts with glass microscopic defects; (2) local conditions (thermal...

Recent Trends in Geological-Geophysical Exploration and Methods of Improving Use of Geophysical Data

R. Clare Coffin

AAPG Bulletin

... alone reported a total of three seismic units and one gravity-meter unit in operation in Mexico and South America in 1942, and 21 seismic units and 10...

A Combined Discontinuous Galerkin / Cohesive Zone Model Numerical Simulator for Hydraulic Fracturing and Application to Frac Hits Mitigation

Santiago Serebrinsky, Mauro Baldini, Federico Castez, Humberto Celleri, Isaías Gallana, Julieta Gutiérrez, Damián Smilovich

Unconventional Resources Technology Conference (URTEC)

... 𝒏 and 𝒎 are average unit vectors, respectively normal and tangent to the cohesive surface. URTeC 3869162 4 Figure 1: Linear decreasing effective cohesive law...

Formation and Deformation of Subglacial Intrusive Clastic Sheets in the Dwyka Formation of Northern Natal, South Africa

V. Von Brunn, C. J. Talbot

Journal of Sedimentary Research (SEPM)

...). Isolated clasts, mostly of pebble size, constitute <5% of this sedimentary unit, which is 5-10 m thick. The arenaceous diamictite overlying these rocks...

Environmental Compliance for the Long Beach Unit

Kathye A. Griffis

Pacific Section of AAPG

...Environmental Compliance for the Long Beach Unit Kathye A. Griffis 1996 93 94 See PDF...

Swan Hills Unit #1: Adding Value with Seismic Through Reservoir Delineation and Characterization

J.D. Uffen

CSPG Special Publications

...Swan Hills Unit #1: Adding Value with Seismic Through Reservoir Delineation and Characterization J.D. Uffen 1994 139 140...

Star Corral Unit

Wyoming Geological Association

...Star Corral Unit 1992 295 295 NOTE: Deep test information not provided. See PDF for map...

Elkton Facies and Diagenesis - Crossfield Elkton “B” Unit

Daniel E. Edwards, Alan A. Gordon

CSPG Special Publications

...Elkton Facies and Diagenesis - Crossfield Elkton “B” Unit Daniel E. Edwards, Alan A. Gordon 1995 180 180...

Sediments of Lower Chesapeake Bay, With Emphasis on Mass Properties

W. Harrison, M. P. Lynch, A. G. Altschaeffl

Journal of Sedimentary Research (SEPM)

... properties: gross saturated mass unit weight, 1.16-2.00 g/cm3 (in air) and 0.15-0.96 g/cm3 (submerged); average specific gravity of grains, 2.66-2.74...

Summary of Middle Ordovician Stratigraphy and Tectonics, Northern Utah, Southern and Central Idaho

Robert Q. Oaks Jr., W. Calvin James, G. Gregory Francis, Warren J. Schulingkamp II

Wyoming Geological Association

... sediments in the southern bight of the North Sea. Geologie en Mijnbouw, v. 74, p. 245-273. Irving, E., 1964, Palaeomagnetism and Its Application...

Characterization of the natural fracture system of the Eagle Ford Formation (Val Verde County, Texas)

Raphaël Gottardi, and Shanna L. Mason

AAPG Bulletin

..., Eagle Ford Shale variability: Sedimentologic influences on source and reservoir character in an unconventional resource unit: Gulf Coast Association...

Coal Identification Using Neural Networks with Real-Time Coalbed Methane Drilling Data

Ruizhi Zhong, Raymond Johnson Jr, Zhongwei Chen, Nathaniel Chand

Australian Petroleum Production & Exploration Association (APPEA) Journal

... equations are sigmoid (or logistic), hyperbolic tangent (tanh), and rectified linear unit (ReLU) activation functions, respectively. All these activation...