Increased Resolution of Seismic Data from a Dual-sensor Streamer Cable

Carlson, David; Söllner, Walter; Tabti, H.; Day, A.; Widmaier, M.

doi:10.3997/2214-4609.20147617

Cited by 3 publications

(7 citation statements)

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“…Unfortunately, these dual-sensor streamers did not perform satisfactorily, mainly because the velocity sensors were also sensitive to strum noise -transverse vibrations along the cable for which the hydrophones have a built-in cancellation technique. Finally, after many years of research, PGS (Petroleum Geo-Services) introduced a new version of the dual-sensor streamer that was a breakthrough (Carlson et al, 2007b;Tenghamn et al, 2007). Figure 5.25 illustrates that the ghost as "seen" by a velocity sensor has opposite sign to the ghost as seen by a hydrophone (Schneider and Backus, 1964).…”

Section: Dual-sensor Streamermentioning

confidence: 97%

“…A much nicer option is to use this technique in combination with over/under acquisition or, even better, with a dual-sensor streamer (Carlson et al, 2007b;Pharez et al, 2008). These techniques use much deeper streamers, so a depth can be chosen where the streamers are no longer affected by the turbulence caused by the source vessel.…”

Section: Zigzag Watsmentioning

confidence: 97%

“…As long as the first notch of the hydrophone data is well above 20 Hz (cable shallower than about 25 m), the velocity sensor can still be used to remove the first hydrophone notch from the recorded data (Cambois et al, 2009a). Processing results of data acquired with the dualsensor streamer can be found in Carlson et al (2007b) or in Pharez et al (2008). Figure 5.26 illustrates the power of combining the data acquired with the two types of sensor.…”

Section: Dual-sensor Streamermentioning

confidence: 99%

“…Note the complementary amplitude spectra for pressure versus particle velocity (after correction). The upgoing-pressure wavefield on the right is derived from the pressure and velocity wavefields on the left and in the middle (fromCarlson et al, 2007b).…”

mentioning

confidence: 99%

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3D Seismic Survey Design, Second edition

Vermeer¹

2012

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Section: Dual-sensor Streamermentioning

confidence: 97%

Section: Zigzag Watsmentioning

confidence: 97%

Section: Dual-sensor Streamermentioning

confidence: 99%

mentioning

confidence: 99%

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3D Seismic Survey Design, Second edition

Vermeer¹

2012

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“…• Slant streamer (Ray, 1982) • Over/under streamers (Sonneland, et al1986) • Hydrophone-vertical geophone streamers (Carlson, et al 2007) • Multicomponent (4C) towed-streamers (Robertsson, et al 2008) Slant streamer acquisition had very limited applications due to inadequate processing algorithms at the 1980s, particularly deghosting, or ghost-removal process. Over/under acquisition also had limited applications during that period due to deficiencies in marine acquisition technology related to lack of streamer control in vertical and horizontal planes, and reduced accuracy in receiver positioning along streamers.…”

Section: Introductionmentioning

confidence: 99%

Broadband Seismic Methods for Towed-streamer Acquisition

Moldoveanu¹,

Seymour²,

Manen³

et al. 2012

Proceedings

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One of the limiting factors in seismic resolution for marine towed-streamer acquisition is the ghost effect due to sources and receivers. The ghost is the reflection from the sea surface that interferes constructively or destructively with the primary reflections reducing the seismic bandwidth at the low end and the high end of the spectrum. Different acquisition and processing solutions were proposed during the years to address the ghost problem. In this paper we review these solutions and we introduce new slant streamertype acquisition with the processing based on prestack single-streamer deghosting.

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A variational formulation for interpolation of seismic traces with derivative information

2015

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We construct a variational formulation for the problem of interpolating seismic data in the case of missing traces. We assume that we have derivative information available at the traces. The variational problem is essentially the minimization of the integral over the smallest eigenvector of the structure tensor associated with the interpolated data. This has the physical meaning of penalizing the local presence of more than one direction in the interpolation. We show that the solution to the variational problem also satisfies an elliptic partial di↵erential equation. Moreover, this can be obtained by considering the steady state solution of a non-standard anisotropic di↵usion problem. We show existence and uniqueness for this type of anisotropic di↵usion. In particular, the uniqueness property is important as it guarantees that the unique solution to the variational problem that we constructed can be obtained by the numerical schemes we propose.

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Increased Resolution of Seismic Data from a Dual-sensor Streamer Cable

Cited by 3 publications

References 0 publications

3D Seismic Survey Design, Second edition

3D Seismic Survey Design, Second edition

Broadband Seismic Methods for Towed-streamer Acquisition

A variational formulation for interpolation of seismic traces with derivative information

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