Illuminating the shadows: Tomography, attenuation, and pore‐pressure processing in the South Caspian Sea

Autor:	Stan Lee, Bill Troyer, Jane Burger, Rachel Ho, S. Singh, Jesse Shaw
Rok vydání:	1998
Předmět:	Tectonics Pore water pressure Geophysics Attenuation Distortion Shadow Geology Sedimentary rock Tomography Seismology Mud volcano
Zdroj:	The Leading Edge. 17:777-782
ISSN:	1938-3789 1070-485X
DOI:	10.1190/1.1438053
Popis:	The South Caspian Sea is a major oil and gas producing area, characterized by thick sedimentary deposits and complex tectonic structure. Structural trends include anticlinal folds, steep dips, and mud volcanoes. Many of the large anticlinal folds contain world‐class producing fields. However, conventional processing of seismic data often fails to correctly image through the seismic “shadow zones” frequently observed in this region. These shadow zones are characterized by low‐amplitude events or low signal‐to‐noise ratio, arrival‐time delay, attenuation of high‐frequency information, and distortion of underlying reflectors. This often makes interpretation difficult to impossible.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d43ae9d69827adec16408ab5b6b3b899 https://doi.org/10.1190/1.1438053 Zobrazit plný text záznamu