Modeling The Earth For Oil Exploration book cover

Modeling The Earth For Oil Exploration

Final Report of the CEC's Geoscience I Program 1990-1993

This volume presents an overview of the results of a European Union integrated program in which approximately two hundred earth scientists participated, drawn from all fields related to exploration.

Two classes of modeling were addressed - geological modeling - the relationship between the conditions of sedimentation and the resulting reservoir conditions; and wave-propagation modeling - the investigation of wave-propagation through media of various degrees of complexity. Wave-propagation modeling was carried out either mathematically or physically with the most modern tools. An important aspect of the project was the inversion of seismic data, that is the determination of the parameters of the medium from observations. This problem is closely related to modeling since it is based on the inversion of the mathematical steps and often uses modeling for verification and updating.

The geological data presents novel concepts with a coverage that is both broad in area and in discipline. The geophysical investigations are at the leading edge of current research. Although detailed results have been published separately by investigators, this volume is the only source of reference which summarises the results; but incorporating sufficient detail to enable the reader to follow the scientific reasoning.

Audience
For exploration and production specialists, both in industry and academia.

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Published: December 1994

Imprint: Pergamon

ISBN: 978-0-08-042419-4

Reviews

  • ...valuable text for all those involved in geophysical prospecting for hydrocarbons, especially those interested in developing collaborative projects with a multidisciplinary approach.
    AMF Reviews 24 (2)

Contents

  • The CEC Geoscience I Program: A Multidisciplinary Targeted Program in Exploration R&D (1990-1993). Introduction. Geological surveys. Geological modeling and interpretation. Seismic modeling. Seismic inversion. Software. Technical results of the program. Conclusions. From Sedimentology to Geostatistical Reservoir Modeling. Abstract. General presentation of the project. Geological presentation of the outcrops. Data acquisition and digitization. Construction and visualization of the reference models. Reconstructing the reference models from a limited dataset. General conclusions. References. Appendix. Geological Characterization of Fluvial Sediments. Abstract. Introduction (TUD). Geological framework (IGE–CSIC/UCM). Fluvial architecture (TUD and IGE–CSIC/UCM). Sandstone petrography (IGE–CSIC/UCM). Permeability analysis (TUD and TNO). Gamma-ray analysis (TUD and IGE–CSIC/UCM). Stochastic modeling (TUD and TNO). Seismic modeling (TNO). References. Systematics of Faults and Fault Arrays. Abstract. Introduction. Fault systematics. Definition and analysis of fault-related horizon and sequence geometries. Modeling of the displacement geometries associated with normal faults. References. Wave Propagation in Random Media. Abstract. Random-media research. Modeling 1D random media. Parameterization of 3D random media. Accurate and efficient seismic modeling in random media. Scalar wave transmission and localization in layered media. Scattering attenuation from VSP data: a numerical study. Model studies of coherence and bandwidth. Attenuation: analysis of North Sea data. Attenuation of seismic waves. Attenuation tomography. Tomography for anisotropic velocity parameters. Data processing. References. Exploration Oriented Seismic Modeling. Abstract. Introduction. Advanced seismic modeling. Directed seismic inversion. References. Seismic Inversion and the Impact of a Priori Information. Abstract. Impact of a priori information. 2D linearized elastic inversion - evalution of synthetic data. Abstract. The Mesa Verde outcrop: seismic modeling, processing and interpretation. Abstract. References. Physical Modeling of 3D Seismic Wave Propagation. Abstract. Introduction. Seismic modeling: a state-of-the-art. Laser ultrasonics, a breakthrough in seismic modeling. Some aspects of seismic modeling: laser ultrasonics versus numerical modeling. Some aspects of seismic modeling and imaging in (an)isotropic media using a mixed laser/piezoelectric system. Three-component recording using speckle interferometry. Critical evaluation of the laser technique and prospective views. Conclusions. Appendix A: Physical modeling using laser speckle interferometry. References. An Expert System for Reservoir Characterization. Abstract. System development methodology. The distributed problem-solving environment. A task model for subsurface modeling. E&P knowledge module implementation: ELL correlation based on siliciclastic sequence stratigraphy. E&P knowledge module implementation: stratigraphic seismic interpretation. Conclusion. References. An Exchange Format for Geological and Geophysical Data. Abstract. Introduction. The software development process. Results and discussion. POSC. Conclusions and recommendations. References. Appendix: The Research Contracts. Index.

    67 illus., 150 line drawings.

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