Wave-Front Diagrams in Seismic Interpretation

H. R. Thornburgh

AAPG Bulletin

...------------------------------ the disturbance, in passing a boundary, distorts the front out of circular form in the new medium. These are simple refraction phenomena, easily...

Geological Masks and Prejudices

Earl B. Noble

AAPG Bulletin

... in this same 10-year period; and one has already passed the 17,000-foot mark. Increase in exploratory activity is reflected in A.A.P.G. membership...

Heavy-Mineral Techniques and Their Application to Venezuelan Stratigraphy

Gustavo Feo-Codecido

AAPG Bulletin

... on the basis of their indices of refraction. One index is measured in isotropic minerals, two in uniaxial minerals, and three in biaxial minerals...

Gravity Survey of the Northern Channel Islands

J. D. Rietman, J. K. Aldrich

Pacific Section of AAPG

... contrasts which result from the sum total of all orogenic activity, both past and recent, in an area. Major structural trends such as those reflected...

Fault Structures Within the Central Papuan Basin — Implications for Petroleum Exploration

J. Pinchin, K. F. Fowler, C. S. Bembrick

Southeast Asia Petroleum Exploration Society (SEAPEX)

... or foothills. Many of the early seismic surveys from 1938 to 1959 used the refraction method but, after 1959, only reflection techniques were used...

Falling Water Level Ripple Marks

William F. Tanner

GCAGS Transactions

... with a current, one wave set with its reflection or refraction, or possible three or more wave sets. Combinations such as these are extremely varied...

The Photo-extinction Method for the Measurement of Silt-sized Particles

Gene Simmons

Journal of Sedimentary Research (SEPM)

... if representative results are to be obtained. In mounting, it is necessary that the mounting medium have an index of refraction that differs sufficiently...

Shallow Gas Identification using LWD Monopole Sonic: A Non-Radioactive Solution for Safe and Effective Logs Acquisition in Tunu Field, Mahakam Delta

Antonius Tri Santoso, Hidayat Mukmin, Haris Kurniawan Hidayat, Supriady

Indonesian Petroleum Association

.... critical refraction will occur when the formation compressional is faster than the compressional slowness of the drilling fluid (Blyth et al., 2013...

Notes on the Mineralogy and Origin of Glauconite

Y. K. Bentor, Miriam Kastner

Journal of Sedimentary Research (SEPM)

..., Determination of mixed layering in glauconites by index of refraction: Am. Mineralogist, v. 44, p. 1314-1318. HOWER, J., 1961, Some factors concerning...

Petroleum Developments in Far East in 1954

Godfrey F. Kaufmann

AAPG Bulletin

... geological field parties have spent 26 party-months in the field, carrying out surveys in six different areas. Three seismograph-refraction parties were...

Plate Tectonics in Petroleum Exploration of Convergent Continental Margins: Hydrocarbons

Thomas L. Thompson

AAPG Special Volumes

.... Shor, G. G., and Roland von Huene, 1972, Marine seismic refraction studies near Kodiak, Alaska: Geophysics, v. 37, p. 697-700. Stauder, William...

Authigenic Silicates in Marine Spencer Formation at Corvallis, Oregon

Harold E. Enlows , Keith F. Oles

AAPG Bulletin

... is a cloudy, generally cryptocrystalline, locally opaque mass which is pale yellowish orange by reflected light and grayish green by transmitted...

Seismic-Reflection Studies in Block Island and Rhode Island Sounds

Robert L. McMaster , Thomas P. Lachance , Louis E. Garrison

AAPG Bulletin

... refraction profiles, Narragansett Bay, Rhode Island: Geol. Soc. America Bull., v. 74, no. 11, p. 1305-1312. Bierschenk, W. H., 1956, Ground-water...

Preliminary Report on Geology Along Atlantic Continental Margin of Northeastern United States

J. P. Minard , W. J. Perry , E. G. A. Weed , E. C. Rhodehamel , E. I. Robbins , R. B. Mixon

AAPG Bulletin

..., and to correlate seismic reflection and refraction horizons. Core and grab samples from the slope are particularly valuable to this study. From these data...

A "Sigsbee Knoll" in Early Tertiary Bay of Biscay and Associated Turbidity Currents

Jorg Hanisch

AAPG Bulletin

... that produced the refraction or reflection. As a method of studying marine depositional environments, geologic and sedimentologic field work is still...

Wave-, Tide-, and Current-Controlled Sandbodies of Miocene Molasse, Western Switzerland

Peter Homewood , Philip Allen

AAPG Bulletin

.... Visser, R., 1980, Neap-spring cycles reflected in Holocene subtidal large-scale bedform deposits: a preliminary note: Geology, v. 8, p. 543-546. Wiegel...

Organic petrology and geochemistry of the Sunbury and Ohio Shales in eastern Kentucky and southeastern Ohio

Cortland F. Eble, Paul C. Hackley, Thomas M. Marty Parris, and Stephen F. Greb

AAPG Bulletin

... fluorescence-free immersion oil (index of refraction = 1.518). Maceral analysis involved the use of both reflected (incident) white and ultraviolet (UV...

Tengiz field fault shadows mitigation with combined joint FWI-tomography, Q-tomography, and least-square migration

Tianjiang Li, King Sim Lee, Bin Gong, Kai Yang, Kai Zhang, Assem Bibolova, Zhanibek Katrenov

International Meeting for Applied Geoscience and Energy (IMAGE)

...:  Iterative Joint FWI and Tomography Depth model building is an iterative process including refraction tomography for the near-surface velocity...

Current Production Logging

C. B. Davenport, R. S. Millhone

Indonesian Petroleum Association

... Injection Profiling Sonic logging techniques involve attenuation, reflection, refraction, and travel time concepts. All tools may suffer from multipath...

Deep learning Laplace-Fourier full-waveform inversion with virtual supershot gathers

Lei Fu, Daniele Colombo, Weichang Li, Ernesto Sandoval-Curiel, Ersan Turkoglu

International Meeting for Applied Geoscience and Energy (IMAGE)

... components of the signal based on their arrival time. The Laplace-Fourier domain can thus emphasize the contribution of transmitted or reflected...

Section Six: Use of Seismic on Diapiric Structures

New Orleans Geological Society

... contact distort reflected energy as well and usually are not sufficiently reliable to pinpoint the contact location. Thus, interpreted locations...

The Measurement of the Shapes of Rock Particles

Allen C. Tester

Journal of Sedimentary Research (SEPM)

... of length of the remnant edges. The use of the lowered condenser or refraction liquids is helpful. When the binoculars are used, a strong light reflected from...

Discovery and Development of the Badak Field, East Kalimantan, Indonesia

Roy M. Huffington, H. M. Helmig

AAPG Special Volumes

... 1968 and included aerial photographic and magnetic surveys, geologic field work, and reflection and refraction seismic surveys. Geologically, the Badak...

Improved subsalt imaging in the Eastern Mediterranean Sea with converted wave attenuation

Monica Hartmann, Jana Caskey, Benjamin Cole, James McLeman, Tom Rayment, Ares Ouzounis

International Meeting for Applied Geoscience and Energy (IMAGE)

... by reflection and refraction, different combinations exist, such as PSPP, and PSSP, all of which can be detected with a hydrophone. The three modes...

Noise Attenuation in Common Receiver Gather to Enhance S/N Ratio in Seismic Data

Dara Felisia A, Triswan Mardani Ade Surya, R.B.Fauzan Irshadibima, Firman Syaifuddin

Indonesian Petroleum Association

... frequency band of reflected energy. For this reason, a simple band-pass filter does little to attenuate the air noise while preserving the signal...