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The AAPG/Datapages Combined Publications Database

Showing 16,597 Results. Searched 200,291 documents.

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Imaging Solutions for Geophysical Challenges in South East Asia (Paper A13)

N. El Kady, Z. Mohd Dom, Y. Prasetyo, M. Bayly, G. Nyein, P. Vasilyev, N. Mat Don Ya

Geological Society of Malaysia (GSM)

... reflection strength and very often deeper target reflectors show anomalous attenuated amplitudes with frequency(Ghosh et al., 2010). This is obviously...

2012

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... model with horizontal anisotropy axis is used to study fractured reservoirs. Reflection moveout in fractured media is usually used to determine...

Unknown

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... model with horizontal anisotropy axis is used to study fractured reservoirs. Reflection moveout in fractured media is usually used to determine...

Unknown

Free Hydrocarbons in Uinta Basin, Utah

Ganjavar Khavari-Khorasani

AAPG Bulletin

...: Proceedings of the Royal Society, series A, v. 209, p. 196-218. Gilbert, L. A., 1962, Refractive indices and absorption coefficients of coal in bulk measured...

1984

Integrating Surface Seismic, Microseismic, Rock Properties and Mineralogy in the Haynesville Shale.

Neil Peake, Gabino Castillo, Norbert Van de Coevering, Simon Voisey, Antoine Bouziat, Kevin Chesser, Guy Oliver, Chi Vinh Ly

Unconventional Resources Technology Conference (URTEC)

... pressure, in addition to tectonic stresses acting in the subsurface. Observation of azimuthal variations of velocity and reflection coefficients was used...

2014

Interpretation of 2-D Seismic Data

Bruce S. Hart

Special Publications of SEPM

... logs, then converting to reflection coefficients . The reflection coefficients are then convolved with a wavelet that is thought to atch the frequency...

2000

Seismic Detection of Source Rocks

Ian Davison, Karyna Rodriguez, David Eastwell

GEO ExPro Magazine

... in acoustic impedance at the base. Extensive, high amplitude ‘soft’ reflection associated with decrease in AI at the top of the source rock sequence. Extensive...

2018

Marine Seismic Sources: Part II: Air-Gun Arrays for Non Experts

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

.... The reflection strength is given by the reflection coefficient for the interface between the water layer and the layered bottom. For small angles...

2010

Estimation of Seismic Attenuation (Q): More Insight from Zero-Offset VSP

Mohammad Risyad

Indonesian Petroleum Association

... of reflection and transmission processes in the earth (Hardage, 1998). * Zero-Offset VSP is one of many widely performed VSP measurement methods with minimum...

2018

Practical Use of Borehole Seismic in Exploration; Goals and Shortcomings

F. Sandnes, L. Nustt, S. G. Henry

Indonesian Petroleum Association

... simulating a synthetic trace which matches the processed VSP data by iterative modeling of reflection coefficients. It is from the reflection...

1983

The Grandison Complex, Lafourche and Jefferson Parishes, Louisiana

Ramsey L. Oakes

GCAGS Transactions

... change across the closely controlled Coffee Bay fault and onto the anticlines, no accumulation occurs. Two separate reflection seismic surveys failed...

1959

Seismic expressions of a Miocene prograding carbonate margin, Mut Basin, Turkey

Xavier Janson, Gregor P. Eberli, Florence Bonnaffe, Fabrice Gaumet, Vincent De Casanove

AAPG Bulletin

...-tracing method (Fagin, 1991), which uses only rays that travel at a 90 angle to the reflecting surface (Figure 11A). Reflection coefficients...

2007

Formation and Early Diagenesis of Varved Evaporite Sediments in a Coastal Hypersaline Pool

Jacob Kushnir

Journal of Sedimentary Research (SEPM)

... partition coefficients. The major parameter that affects the coprecipitation of all cations with gypsum is the rate of growth of the crystals. The amount...

1981

Discussing Demigration Uncertainties Applied to Active Focused Seismic Monitoring

Baptiste Penot, Bruce Webb, Michele Buia, Gianluca Dell’Elce

Carbon Capture, Utilization and Storage (CCUS)

... reflection monitoring are highlighted. This study relies on the use of a ray-tracing based de-migration algorithms on different perturbed propagation...

2025

Tinggi Field - Analyzing the DHIs

Harun Mohd. Noor

Geological Society of Malaysia (GSM)

... We have used the log values for the interval velocities of the shale, gas sand and the water sand to calculate reflective coefficients for the gas-sand...

1987

Seismic Modeling of Acid-Gas Injection in a Deep Saline Reservoir

Search and Discovery.com

... and reflection coefficients to fluid substitution. Using acid-gas properties from the Peng-Robinson equation of state and fluid substitution effects from...

2013

Cableless Confusion

Robert Heath

GEO ExPro Magazine

... and NBR. Currently available for: • Barents Sea, utm zone 34 • Mid-Norway, utm zone 32 • North Sea, utm zone 31 Dan Braden transmission...

2012

Settling the Eighth Continent „ Three Steps to Mankind's Colonization of the Moon; #70150 (2013)

Bruce L. Cutright and William A. Ambrose

Search and Discovery.com

... and critical material challenges in the 21st century and beyond. …[it] , is a clear reflection of AAPG's vision of advancing the science...

2013

Enso and Sunspot Cycles in Varved Eocene Oil Shales from Image Analysis

Maurizio Ripepe , Lillian T. Roberts , Alfred G. Fischer

Journal of Sedimentary Research (SEPM)

... variation in light transmission (Fig. 3E). Finally the curves derived from successive images of a single acetate peel replica were concatenated...

1991

Oil and Gas Developments in Maryland, Ohio, Pennsylvania, Virginia, and West Virginia

William S. Lytle, Theodore A. DeBrosse, E. Perry Bendler, William J. Bushman, Allan W. Johnson, Jonathan Edwards, Jr., David M. Young, Douglas G. Patchen

AAPG Bulletin

... by the Columbia Gas Transmission Corporation (formerly United Fuel Gas Company) that started in 1970 continued during 1971 with the drilling of 13 wells...

1972

Carbonate Textures: Carbonate Techniques

AAPG Special Volumes

..., scanning and transmission electron microscopy have prov d to be the most effective techniques for the detailed examination of fine-grained sediments...

1978

Petroleum Developments in Australia in 1976

E. F. Durkee

AAPG Bulletin

... for 1976 consisted of 4 short reflection surveys totaling 2.3 End_Page 1888------------------------------ crew-months (224.5 line-km) and a 1-month...

1977

Mineralogical and Fabric Changes of Shale During Burial Diagenesis and Their Effects on Petrophysical Properties

Jin-wook Kim , William R. Bryant , Joel S. Watkins , Thomas T. Tieh

GCAGS Transactions

... by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and x-ray powder diffraction (XRD) to study the relationship between clay...

1998

Limitations of Reflection Seismograph

L. E. Nugent, Jr.

AAPG Bulletin

... re-reflected upward to the surface. These phenomena are commonly associated with relatively shallow interfaces with large reflection coefficients...

1953

Seismic impedance inversion via neural networks and linear optimization algorithm

Bo Zhang, Yitao Pu, Ruiqi Dai, Danping Cao

International Meeting for Applied Geoscience and Energy (IMAGE)

..., DDNNs, and SSI. Table 1 shows the average correlation coefficients between the inverted impedance and true impedance. Figure 4 shows the comparison...

2024

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