Advanced Marine Seismic Acquisition Techniques
|Dr Mike Branston (WesternGeco, London, United Kingdom)|
|1 or 2 days|
|Geophysics – Seismic Acquisition|
|5 or 10 CPD points|
3D OBC P‑WAVE PRM RESERVOIR ENGINEERING SIMULTANEOUS SOURCE WIDE‑AZIMUTH
The course is designed to familiarize the student with the latest developments in Marine Seismic Acquisition including Wide-Azimuth with its many geometry variants, Broadband techniques (boosting the high and low frequencies), seabed receivers for both P-wave and Converted-wave recording, simultaneous source acquisition, and methodologies to improve efficiency.
The course starts with an overview of conventional 3D towed streamer seismic acquisition and then concentrates on recent advances that have enabled dramatic improvements in seismic data quality and interpretability. While the development of 3D marine seismic acquisition since the 1980s has been arguably the single most effective technique in improved drilling success, the recent addition of "true 3D" or "wide-azimuth" techniques has led to improved sub-surface illumination and imaging. In addition to improved imaging, improved resolution has been achieved through so-called broadband techniques achieved through novel source and streamer geometries and multi-component receivers. The course compares wide-azimuth towed streamer seismic acquisition as well as sea-bed seismic acquisition, ocean bottom cable (OBC) and ocean bottom node (OBN). Design and practical implementation considerations are reviewed; together with relative cost-benefits. In the case of sea-bed seismic, the value of multi-component recording is reviewed. Broadband seismic techniques are explained in terms of source and receiver design, practical implementation and interpretational benefits. The course reviews the latest developments in simultaneous source technology, which are attempting to improve the data density and / or operational efficiency of seismic acquisition. Finally the course reviews the other operational methodologies and designs that have been developed to improve acquisition efficiency.
A practical approach is adopted and is designed to provide the student with an up-to-date understanding of recent developments in marine seismic acquisition technology. At the end of the course the student will be able to understand why and where these new technologies are applicable, understand what studies are required to design new surveys and understand the relative costs of acquiring and processing the seismic data compared to conventional acquisition.
The course is designed for geophysicists and explorationists who wish to gain an overview of recent developments in 3D marine seismic acquisition. Participants are assumed to have a working knowledge of conventional seismic acquisition techniques and their use in exploration and development of hydrocarbon resources.
Participants should have a working knowledge of conventional seismic acquisition techniques and their use in exploration and development of hydrocarbon resources.
About the instructor
Mike Branston manages WestenGeco's Solution Design and Modeling activities across the Eastern Hemisphere. He has been based in Norway, Malaysia and the UK. Mike holds both a BSc and a PhD in geophysics and was awarded Chartered Geologist status by the Geological Society of London in 2006.
Since 2014 he has volunteered his time and expertise to assist the PESGB (Petroleum Society of Great Britain) in the organisation of their biannual petroleum exploration conference (PETEX); initially as a member of the technical committee and more recently as chairman of that committee.
Explore other courses under this discipline:
Instructor: Dr Mike Branston (WesternGeco)
The course is designed to familiarize the student with the latest developments in Marine Seismic Acquisition including Wide-Azimuth with its many geometry variants, Broadband techniques (boosting the high and low frequencies), seabed receivers for both P-wave and Converted-wave recording, simultaneous source acquisition, and methodologies to improve efficiency. The course starts with an overview of conventional 3D towed streamer seismic acquisition and then concentrates on recent advances that have enabled dramatic improvements in seismic data quality and interpretability.
Instructor: Mr Jack Bouska (Independent Consultant)
This course covers modern techniques in 3D seismic acquisition, from the perspective of seismic as an integrated system comprising: acquisition design, field operations, data processing, imaging, and interpretation. This one day course will review the basics of 3D survey design, with emphasis on how practical aspects of interpretation, data processing, imaging and/or field operations can either constrain.
Instructor: Mr Jan de Bruin (Project Manager - Seismic Acquisition)
Existing courses and books with the title `seismic acquisition' typically deal with designing seismic surveys. Although I treat design in a somewhat less conventional way, it is an important part of this course too, but other equally important subjects receive equal attention. These are: Clients, Finance, Procurement, Scouting, Communities, Execution, Equipment, HSE and Project Management. Any serious flaws in either of these can make a seismic survey less successful or fail altogether. Although these elements have nothing to do with Geophysics, they are essential ingredients of Seismic Acquisition. The course will look at all this from the perspective of seismic companies as well as oil companies
Instructor: Dr Cyrille Reiser (Petroleum Geo-Services)
The main aim of this course is to provide a very accessible overview of the many concepts behind broadband seismic (primarily offshore) and its implication for the reservoir focused asset based geoscientist. This will be done through the a very comprehensive set of case study material from all regions of the world and for various stages of the exploration, appraisal and development asset life cycle. The course aims to objectively discuss the various broadband seismic technologies and commercial offerings available today and their respective merits with regards to quantitative reservoir characterization and reservoir imaging using real world application examples. The course will further attempt to identify possible pitfalls and issues with regards to the treatment of broadband data that might lead to flawed or erroneous QI.
Instructor: Dr Robert Soubaras (CGG)
This one-day course is intended to explain how, by combining advances in equipment, acquisition design and processing, the bandwidth of marine seismic images has been increased recently from 3 to 6 octaves. The course starts with a theoretical part that provides a unified framework allowing to cover the theory of the various marine broadband methods that are currently used (over-under, dual sensor, variable-depth), with the aid of synthetic examples as well as real data results based on the variable-depth streamer method. After the specific receiver deghostings are addressed, other processing steps that have to be adapted to broadband data are described.
Instructor: Mr Cedric Fayemendy (Statoil)
Geophysical Reservoir Monitoring (GRM) of reservoirs relies on frequent time-lapse observations with high-survey repeatability. This technology is a key enabler for maximizing the oil recovery of oil and gas fields. The GRM technology aims at understanding and updating the knowledge of producing reservoirs. This is achieved through mapping the movement of fluid and pressure fronts and fluid contacts during production and injection. The combination of production monitoring with repeated seismic acquisition and geological and reservoir information provides reliable estimates of static and dynamic reservoir parameters. The lecture will first review the geophysical reservoir monitoring history at Statoil. We will share our experience with 4D processes, resources allocation and the overall monitoring strategy. The lecture will also cover challenges in understanding the 4D responses and value creation. Finally, we will look at how we push the GRM technology towards higher use of quantitative results.
Instructor: Dr Anatoly Cherepovskiy (Independent Consultant)
This course will provide information related to recent trends and advances in land seismic data acquisition technology, equipment and the methodologies that are being utilized to improve seismic imaging quality and productivity of 3D acquisition with an emphasize on the high-end surveys as performed in open areas. The course will not cover the fundamentals of 3D and multicomponent seismic survey design, although there will be a section that will give a review of recent survey design approaches and principles.
Instructor: Mr Paul Ras (SD2I Geophysical Consulting)
Several significant land seismic acquisition technology advances have emerged in the last decade: high-channel count single sensor (point receiver), simultaneous source high-productivity vibroseis, broadband and wireless nodal systems. To get the most out of these new technologies, the survey design process has been evolving as well and now includes single sensor, single source, simultaneous source, broadband, symmetric sampling, cross-spreads, spatial continuity and more powerful 5D interpolation methods. This course presents an integrated approach to modern land 3D seismic survey design as it has a key role in the seismic value chain going from acquisition to processing, imaging and inversion & characterization.
Instructor: Dr Jaap C. Mondt (Breakaway, Netherlands)
This course presents various geophysical methods from gravity to magnetics, electrical, electro-magnetic, refraction and reflection seismic.
Instructor: Dr Jaap C. Mondt (Breakaway, Netherlands)
The course deals with advanced methods of seismic acquisition and processing. It will be taught not only by explaining the methods, but above all by applying the theory in mainly Excel based assignments.