The advent of amplitude varying with offset (AVO) and inversion technologies and pioneering geophysical work brought about increased usage of seismic attributes, solving various problems of geologic interpretation. Seismic data acquisition and processing have resulted in significant improvement in data quality and hence success of attribute application.
The course deals with the seismic attributes analysis and the challenge. Exploration efforts and focused plays include (1) inversion structural plays, (2) stratigraphic channels, (3) fracture basement, (4) deep high pressure (HP) and high-temperature (HT) plays, (5) steep-dip overthrust plays, (6) deepwater turbidite plays, (7) carbonate plays, and (8) thin beds pay.
Upon completion of this course, participants will be able:
- Understand theoretical and practical aspects of seismic attributes.
- Describe the seismic attributes classification and how to interpret the seismic attributes.
- Analyze the seismic attributes for different issues and challenges in hydrocarbon prediction.
Prof. Dr. Deva Prasad Ghosh,
obtained a BSc. in Geology and Physics, an MSc. in Geophysics both from Banaras Hindu University India and a Ph.D. (1970) from Delft University, the Netherlands. He worked at Banaras Hindu University as an Associate Professor in Geophysics for about 8 years.
He worked in Shell from 1974-1999 holding various technological and management positions.
Prof Deva joined PETRONAS in 2000 and was responsible for research, development, and application of geophysical technology worldwide. In 2011, he joined Universiti Teknologi PETRONAS (UTP) as a Professor in Geophysics and is currently responsible as the Head of Center of Excellence in Subsurface Seismic Imaging & Hydrocarbon Prediction (CSI).
He is passionate about geophysics, developing local staff, and transfer of technology. His field of interest is in Seismic Imaging, Seismic Attributes and Hydrocarbon prediction. He is a member of AAPG, SPE, EAGE and SEG, and a former editor of EAGE. He was SEG-Shell Distinguished Lecturer for SE Asia in 2010 and EAGE Lecturer 2012.
Ms. Siti Nur Fathiyah Jamaludin,
holds an MSc in Petroleum Geoscience from Universiti Teknologi PETRONAS in 2014 and a BSc in Applied Geology from Curtin University of Technology, Perth, Australia in 2009. She had three years experience working as Processing Geophysicist at CGG, Malaysia from 2009-2012 before she left for her MSc.
During her MSc study, she had done an excellent research related to impact of tectonic and structural on the growth of carbonate platforms in Central Luconia, using structural balancing and reconstruction technique. She had integrated the knowledge of geology in geophysical data and geophysical techniques to come out with new interpretation idea for the growth of carbonate platforms in Central Luconia in relation to the regional structure in this region.
After her MSc, she had been working as a lecturer at the Geosciences Department in UTP. She is actively involved in designing and teaching Seismic Attributes & 3D Visualization subject for third year students in B.Tech of Technology (Petroleum Geoscience). Through continuous teaching and her passion towards seismic technology, Fathiyah was nominated for Effective Education Delivery Award for UTP Quality Day for Year 2015 and Year 2016.
This three-day course will cover the following aspects (case studies may be included in some topics):
- Meaning & Significance of Seismic Attributes
The course explains how useful seismic attributes are developed and how they highly impacted the seismic interpretation. Stratigraphic interpretation and routine investigation of amplitude variation, which leads to the discovery of the first direct hydrocarbon indicators; bright spot, will be highlighted. Note that the great success of bright spot exploration quickly established seismic amplitude as the key tool of exploration geophysics, and stimulated the search for other hydrocarbon indicators until now.
- Classification of Seismic Attributes
The course will teach how to classify the seismic attribute in order to be effectively used according to users purposes. Three classes of attribute, and their usefulness, will be introduced, i.e. structural/geomorphological attributes, spectral attributes, and fluid/lithological attributes. Structural/geomorphological classified attribute aims to map the geological structure and help the geomorphological analysis. Spectral attributes are important in improving resolution for thin beds pay estimation, for instance, which very critical. The objective of fluid/lithology classification attributes is to relate seismic amplitude to geology, i.e. to lithology, and/or pore fill. Knowing that all physical factor influence the seismic amplitude is necessary. This course will discuss all mentioned factors as well as analyze their pit falls.
- Domain of Application
Besides classification, knowing about the domain an attribute will be properly used is also important. Some attributes are very useful when it is applied in geological domain (structure, stratigraphic, facies, etc.), while some more suitable in E&P domain (resolution, thin-bed, coal bed removal, etc.) or QI domain (reservoir quality, HC prediction, etc.). Participant will learn how to place seismic attributes in proper domain of application.
Some powerful algorithm will be elaborated in this course, e.g. Dip/Azimuth, curvature, coherency, spectral decomposition, waveform & facies, complex attributes, phase, Hilbert transform, strata slicing, spectral decomposition, AVO, EI, etc.
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