11. Case History 6 Effective Depth Conversion: A North Sea Case Study

Zijlstra, D. M.; Made, P. M. van der; Bussemaker, F.; Riel, P. van

doi:10.1190/1.9781560802754.ch11

Cited by 2 publications

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“…Stacking velocity inversion was first presented by Gerritsma [9] and later by Van der Made [10], Toldi [11], and Zijlstra [12]. This method utilizes the stacking velocity to generate the interval velocity values.…”

Section: Stacking Velocity Inversionmentioning

confidence: 99%

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Study of Constrained Velocity Inversion of Seismic Data in North Sumatra Basin

Rubiyana

Nurcahya

2021

J. Eng. Technol. Sci.

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Constrained velocity inversion is an interval velocity analysis using an exponential asymptotically bounded velocity model, which can show a delineation match between the model and the velocity inversion functions. The constrained velocity inversion results were adequate for use as seismic velocity input data and produced a better seismic section than the root mean square velocity input data, indicated by clear continuity of the reflectors and the fault. Constrained velocity inversion applied to seismic data in the North Sumatra Basin showed a more rigorous seismic section compared to that from the root mean square velocity analysis.

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Section: Stacking Velocity Inversionmentioning

confidence: 99%

“…The interval velocity is controlled in order to approach the velocity of the global trend according to Eq. (12). The picking function is used as a velocity constraint of interval velocity inversion to approach the RMS velocity data in Eq.…”

Section: Constrained Velocity Inversionmentioning

confidence: 99%

Study of Constrained Velocity Inversion of Seismic Data in North Sumatra Basin

Rubiyana

Nurcahya

2021

J. Eng. Technol. Sci.

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Validation of seismic data processing and interpretation with integration of gravity and magnetic data

Horscroft¹,

Bain²

1996

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integration of gravity and magnetic data with seismic interpretations provides a definitive means of section validation. Traditionally this has been achieved as a two stage and separate process — seismic interpretation in the time domain and the potential fields model in the depth domain. Recent advances in software technology now enables interactive simultaneous real-time modelling of seismic gravity and magnetic data. In addition to conventional interpretations, modern uses of modelling now includes: quality control of seismic depth conversion, control of the potential field model using offset raytracing; derivation of a high quality depth model as a starting point for processes like pre-stack depth migration or turning wave analyses. Integration too can be used to differentiate between geometrically similar but lithologically different seismic structures. This paper describes the advantages of dynamically linking velocity, density and susceptibility in the modelling process illustrated by three different North Sea geological examples. (a) Depth-velocity modelling of salt structures in the Central Graben. (b) Structural interpretations of the Rattray volcanic rocks in the Outer Moray Firth. (c) Shallow sand channels and velocity models from high resolution aeromagnetic data.

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11. Case History 6 Effective Depth Conversion: A North Sea Case Study

Cited by 2 publications

References 0 publications

Study of Constrained Velocity Inversion of Seismic Data in North Sumatra Basin

Study of Constrained Velocity Inversion of Seismic Data in North Sumatra Basin

Validation of seismic data processing and interpretation with integration of gravity and magnetic data

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