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Ehsan, Athar

Search and Discovery.com

... a finite-difference method: 𝜕𝑧 𝑣𝑔 = 𝜑′ (𝑧) (3) 𝜕𝑧 Using inverse functions derivation procedures 𝜕𝑧 1 = ′ (4) 𝜕𝑧 𝑣𝑔 𝜑 (𝑧) 1 𝜕2...

Abstract: 3D Time Domain Full Waveform Inversion Based on Multiscale Adapted Variable Grid Method Case Study Majunga Basin East African Coast; #91204 (2023)

Mukiibi Ssewannyaga Ivan, Jian-Ping Huang, Zi-Ying Wang, Jidong Yang, Jin Keji

Search and Discovery.com

... derivation procedures 𝜕𝑧 1 = ′ (4) 𝜕𝑧 𝑣𝑔 𝜑 (𝑧) 1 𝜕2 𝑧 𝜕𝑧 𝜑′′ (𝑧) 1 𝜑′′ (𝑧) 𝜑′ (𝑧) = 𝜕� = ′ =− ′ (5) � [𝜑 (𝑧)]3 𝜕𝑧 2...

Anisotropy and Petrophysics of a Gas Reservoir in a Horizontal Well with a High Angle Pilot Well, Burgos Basin, Mexico; #40525 (2010)

Hugo Avalos Torres, Heriberto Córdova Aguayo, Manuel Morales Leal, José Bernal Monjaras, Eric Pacheco P., Erik Martínez S., and Gelmunt Escamilla V.

Search and Discovery.com

...-deposition events, such as fracturing. The acoustic anisotropy in rocks can be characterized as intrinsic or induced by stresses (Jaeger and Cook, 1977...

The Development and Application of a New Semi-Analytical Model to Estimate Permeability from Mercury Injection Capillary Pressure

Sarin Apisaksirikul, Thomas A. Blasingame

Unconventional Resources Technology Conference (URTEC)

...-analytical (Huet) model and the Swanson model. Our derivation results support the application of the semianalytical model as a viable (and possibly superior...

Integrating borehole image logs with core: A method to enhance subsurface fracture characterization

F. Fernández-Ibáñez, J. M. DeGraff, and F. Ibrayev

AAPG Bulletin

... & Sons, 288 p. Davatzes, N. C., and S. H. Hickman, 2010, Stress, fracture, and fluid-flow analysis using acoustic and electrical image logs in hot...

A method to predict the resistivity index for tight sandstone reservoirs from nuclear magnetic resonance data

Liang Xiao, Yujiang Shi, Gaoren Li, Haopeng Guo, Junran Li

AAPG Bulletin

...., and E. A. Clerke, 2013, Permeability from porosimetry measurements: Derivation for a tortuous and fractal tubular bundle: Journal of Petroleum Science...

Metallogenesis in Southeast Pacific Ocean: Nazca Plate Project: Minerals

Cyrus W. Field , Jack R. Dymond , John B. Corliss , E. Julius Dasch , G. Ross Heath , Ronald G. Senechal , Herbert H. Veeh

AAPG Special Volumes

..., are ascribed to larger contributions of biogenic silica. We attribute the high and relatively invariant Fe:Mn ratios of the metalliferous sediments...

Depositional Architecture and Petrophysical Variability of an Oolitic Tidal Sand Shoal: Pennsylvanian (Missourian), Kansas, U.S.A.

Eugene C. Rankey, Hamilton Goodner, John Doveton

Journal of Sedimentary Research (SEPM)

... a subdivision of the succession into distinct depositional packages. These units include differences in porosity, acoustic (compressional and shear...

13C-Depleted Authigenic Carbonate Buildups from Hydrocarbon Seeps, Louisiana Continental Slope

Harry H. Roberts , Roger Sassen , Robert Carney , Paul Aharon

GCAGS Transactions

..., p. 153 - 166. End_of_Record - Last_Page 530------- High-resolution acoustic data sets and cores from the Louisiana continental slope collected...

Shatsky Rise Sediments: Correlation of Lithology and Physical Properties with Geologic History: GEOLOGICAL NOTE

Anthony C. Pimm

AAPG Bulletin

... respectively. The recovery of a jasper pebble and an amygdaloidal basalt pebble indicates that acoustic basement was in fact reached at Site 50...

Abstract: Nonlinear Seismic Wave Propagation in Heavy Oil; #90224 (2015)

Wubing Deng and Igor B. Morozov

Search and Discovery.com

... results of ultrasonic measurements of acoustic wave propagation and reflections in Crisco (Wong and Lines, 2013 and Lines et al. 2013). Crisco...

Evaluation of Water Hammer Analysis as Diagnostic Tool for Hydraulic Fracturing

Xiang Ma, Fuping Zhou, Jose Alberto Ortega Andrade, Shekhar Gosavi, Damian Burch

Unconventional Resources Technology Conference (URTEC)

... impedance testing (HIT) to analyze the free pressure oscillation in the wellbore to estimate the fracture geometry. In this method, a hydraulic well...

Abstract: Contrasting isotopic signatures as constraints for the paleogeographic reconstruction of the Avalon Composite Terrane

J. B. Murphy, D. R. Nance, J. D. Keppie, J. Dostal, B. L. Cousens

Atlantic Geology

... rocks reflect derivation from moderately depleted sources. The recurrence of ToM model ages between 0.95 Ga and 1.0 Ga is remarkable. In contrast...

Abstract: Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

...Abstract: Derivation of Seismic Depth Sections H. Buchholtz, W. Houba 283 Derivation of Seismic Depth Sections H. Buchholtz and W. Houba, Prakla...

W

John G. Dennis

AAPG Special Volumes

...W John G. Dennis 1967 162 163 M 7: International Tectonic Dictionary: English Terminology WELT Derivation: An elongate raised area on a surface...

Petrography and Origin of Krol Sandstones Around Solon, Northwestern Himalaya, India: ABSTRACT

Ajit Bhattacharyya, S. K. Chanda

AAPG Bulletin

... of their derivation from preexisting rocks. To resolve the problem of origin of roundness, i.e., "eolian" versus "inherited," size analyses of the rounded...

Abstract: Thermohaline Pore Water Trends of Southeastern Louisiana: Geologic Applications and Controls on Fluid Movement, by D. Marlin and B. Schramm; #90955 (1995).

Search and Discovery.com

Uranium in Volcanic Rocks: Progress: ABSTRACT

John W. Gabelman

AAPG Bulletin

...Uranium in Volcanic Rocks: Progress: ABSTRACT John W. Gabelman 1981 760 760 65 4. (April) Calc-alkaline rocks of crustal(?) derivation analyzed 0...

Porosity Reduction in Sandstone by Quartz Overgrowth: ERRATUM

Frederic Leder, Won C. Park

AAPG Bulletin

... reported are low by about 35%. However, because of a cancellation of errors, the results published for porosities are correct. The following derivation...

Evaluation of Laminated Gas Reservoirs Integrating Resistivity Anisotropy Measurements

Search and Discovery.com

Longshore Drift: Trapped in an Expected Universe

J.A.G. Cooper, O.H. Pilkey

Journal of Sedimentary Research (SEPM)

... transport volumes include sand traps, natural and artificial tracer grains, optical and acoustic techniques, and bedform observations (e.g., Komar and Inman...

Measuring Fracture Induced Stress Shadow Using Fiber Optic Sensing and Its Implications on Fracture Stimulation Design

Rob Bohn

Unconventional Resources Technology Conference (URTEC)

.... The light reflected is called “backscattered” signal, and is processed to calculate 1.) temperature, 2.) acoustic, and 3.) strain measurements along...

Aspects to the Resolving Power of 3D Seismic Surveys

Wolfgang Houba

Geological Society of Malaysia (GSM)

... respectively. -A cable departure angle measuring unit to pick up the horizontal angle, at which the streamer tow cable leaves the ship's centerline. -An acoustic...

Three-Dimensional Seismic-Reflection Techniques

Hermann Buchholtz

Circum Pacific Council Publications

... estimation procedures, a proper derivation of the 3-D velocity model, 3-D residual statics (to be applied in land seismic); (2) pre-migration processing...

Standardizing Texture and Facies Codes for a Process-Based Classification of Clastic Sediment and Rock

Kathleen M. Farrell, W. Burleigh Harris, David J. Mallinson, Stephen J. Culver, Stanley R. Riggs, Jessica Pierson, Jean M. Self-Trail, Jeff C. Lautier

Journal of Sedimentary Research (SEPM)

... are based on fabric (Dunham 1962; Trappe 2001), facies (e.g., Embry and Klovan 1971), composition (e.g., Folk 1956, 1959), or some other attribute...