Joint VSP and surface seismic tomography

Lapin, Sergey; Kisin, Sonja; Zhou, Hua‐wei

doi:10.1190/1.1817837

Cited by 7 publications

(2 citation statements)

References 1 publication

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“…In particular, the combination of data sets allows better subsurface velocity estimation, imaging, and thus interpretation thanks to complementary information brought by each data set. The simultaneous uses of surface and borehole data are more and more showing their worth (Chiu & Stewart 1987; Sexton 1998; Constance et al 1999; Vesnaver et al 1999a; Cao et al 2000; Rossi et al 2001; Chopra et al 2002; Lapin et al 2003; Leaney et al 2003). In this context, the paper focuses on the joint inversion of P waves from walk‐away transmitted arrivals and surface reflected arrivals.…”

Section: Introductionmentioning

confidence: 99%

Combining borehole and surface seismic data for velocity field estimation through slope tomography

Gosselet¹,

Bégat²

2009

Geophysical Journal International

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International audienceA joint traveltime and slope (or slowness) tomography method of marine surface reflections and walk-away transmitted arrivals is investigated. Based on our previous developments of 2-D isotropic slope tomography dedicated to reflection data, the transmitted arrivals are added into the inversion scheme. The results of the transmitted arrival tomography are compared to those of the joint (transmitted and reflected arrivals) tomography on synthetic data. Moreover, a quality control (QC) procedure is proposed. Finally, walk-away transmitted arrivals, surface reflected arrivals and joint tomography of both arrivals are applied on real data sets from Oseberg, North Sea. These data include 2-D surface and walk-away lines along the same direction. The resulting velocity fields are used for pre-stack depth migration, allowing us to conclude that joint inversion leads to significantly improved images both in terms of focusing and event location. A key point is that improvements are not restricted in the area covered by transmitted arrivals. As the number of available borehole receivers is small, this case study demonstrates the strong impact direct arrivals that may have on depth imaging

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Section: Introductionmentioning

confidence: 99%

Combining borehole and surface seismic data for velocity field estimation through slope tomography

Gosselet¹,

Bégat²

2009

Geophysical Journal International

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“…The VSP traveltime tomography can provide valuable information about complicated geological structures and produce a suitable velocity model for depth migration imaging (e.g., Zhou and Hou, 2000). Lapin et al (2003) carried out a joint VSP and surface seismic tomography. successfully used VSP tomography to delineate the salt-sediment boundary.…”

Section: Introductionmentioning

confidence: 99%

3C VSP tomography inversion for subsurface P‐ and S‐wave velocity distribution

Zhao

Zhou

et al. 2005

SEG Technical Program Expanded Abstracts 2005

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First break times (FBT) of P-wave and S-waves picked from three-component (3C) VSP data were used to produce tomographic velocity profiles and Vp/Vs ratio distribution. 3C Eigenvalue rotation is critical for correctly identifying and accurately picking FBTs of S-waves. The resultant tomographic images provide important information for formation evaluation and produce suitable velocity models for improving migration imaging of subsurface structures.

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Near-surface model reconstruction using pseudo well-surface simultaneous travel time tomographic inversion

Pei²,

Yan-hui

et al. 2010

Mining Science and Technology (China)

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Joint VSP and surface seismic tomography

Cited by 7 publications

References 1 publication

Combining borehole and surface seismic data for velocity field estimation through slope tomography

Combining borehole and surface seismic data for velocity field estimation through slope tomography

3C VSP tomography inversion for subsurface P‐ and S‐wave velocity distribution

Near-surface model reconstruction using pseudo well-surface simultaneous travel time tomographic inversion

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