One limitation of automatic interpretation methods such as seismic image flattening is their inability to handle geologic faults. To address this limitation, we propose to combine a method for automatic image unfaulting with seismic image flattening. First, using fault surfaces and fault throw vectors estimated from an image, we interpolate throw vectors to produce a throw vector field, which w...

This application paper introduces a suite of enhancement techniques for visualizing seismic data. These techniques provide a better understanding of the underlying propagation process in the complex time-dependent seismic data. Traditional techniques using the accumulated displacement as a scalar or vector field for volume rendering fail to capture the dynamic frequency variations, which is ess...

Normal reflection from a fractured reservoir is analyzed using frequency-dependent seismic attributes. Processing of 3D low-frequency seismic data from a West-Siberian reservoir produced an accurate delineation of the fractured hydrocarbon-bearing zones. P-wave propagation, reflection and transmission at an impermeable interface between elastic and dual-porosity poroelastic media is investigate...

There is a general consensus that 3D reference models can be used to isolate effects of wave propagation and thus help in improving characterization of seismic sources. Advances in computation and numerical method have made it possible to capture increasingly broadband, full wave generation and propagation in 3D earth models. The main objectives of this project are to construct hierarchical, mu...

Western gray whales (Eschrichtius robustus) aggregate off the northeastern coast of Sakhalin Island, Russia during summer-autumn to feed on benthic and near-benthic prey. During summer 2001, 3D seismic surveys were conducted during a six-week period in known gray whale foraging areas off Sakhalin Island. To test the hypothesis that the distribution of gray whales on the feeding ground would shi...

Seismic recordings represent convolution of a source wavelet with physical properties of the Earth’s interior, thus different components of the seismic recordings (e.g. traveltime of seismic phases, amplitudes and seismic waveforms) can be used to image structures and compositions of the Earth (e.g. Iyer and Hirahara, 1993; Nolet, 2008; Romanowicz, 2003; Stein and Wysession, 2002). By using dif...

This paper highlights the importance of using Remote Sensing and GIS for assisting the seismic risk assessment for historical town centres in Cyprus. The selected case study is the Paphos town centre including the archaeological area of Nea Paphos. The authors present their proposed methodology for inventory collection, which is based on the integrated use of aerial photos and satellite imagery...

Towed streamer operations in congested areas lead to gaps in 3D coverage making the OBC (Ocean Bottom Cable) method employing detectors on the ocean bottom a necessity. In order to ensure that high quality seismic data is obtained using this method one has to address the problem of water column reverberation at the acquisition stage itself. Every primary arrival at a detector location is follow...