RESOLUTION OF SUB-SEISMIC RESERVOIRS BY THE APPLICATION OF SPECTRAL DECOMPOSITION AND SPECTRAL INVERSION METHODS IN BOONSVILLE FIELD, NORTH CENTRAL TEXAS.

Constrained least squares-spectral analysis (CLSSA) and high resolution spectral inversion are applied to 3D seismic dataset from Boonsville field to overcome the wavelet interference arising from complex reflection patterns created by thin layering within Atoka conglomerate that forms the producing unit in this field. The Atokan conglomerate is a case of thin bed reservoir with discontinuous beds that depict seismic resolution below the typical Widess limit, making bed thickness estimation using conventional means almost impossible. Apparent bed thickness estimates are obtained from analyzing high resolution spectral inversion attribute volumes and the result compared with true bed thickness estimated from stratigraphic correlation of well log data. The results are found to be highly correlated, showing a great improvement in the temporal resolution from the high resolution volume. The inverted data furthermore revealed several minor faults and also enhances lateral bed continuity that were initially interpreted discontinuous due to wavelet distortion on seismic. These comparative analyses clearly show that spectral analysis using CLSSA and spectral inversion give temporal resolutions that are not achievable using the conventional Widess theory.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

Masters

Discipline thesis:degree_discipline

Geophysics

Grantor

University of Houston

Year dc:date.issued

2013

Author dc:creator

• Babalola, Ayodeji 1984-

Advisor dc:contributor.advisor

• Castagna, John P.

Committee members dc:contributor.committeemember

• Chesnokov, Evgeni M.
• Rauch-Davies, Marianne

• Spectral decomposition
• Spectral inversion
• Thin-bed resolution

Statement dc:rights

• The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/10657/568

OAI identifier oai:identifier

oai:uh-ir.tdl.org:10657/568