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Impact of Interbed Multiples on Reservoir Characterization – Permian Basin and Middle East Case Studies

August 27 @ 9:00 am – 10:00 am CDT

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Our Speakers:

Dr. Ali Tura
Professor of Petroleum Engineering, Colorado School of Mines

Abstract:

Seismic reflection amplitudes from a reservoir can be degraded by interbed multiples generated by high-velocity carbonate layers in the overburden. These multiples can “rain” onto the reservoir interval, contaminating the seismic signal.

This contamination can:

  • Weaken structural interpretation
  • Severely damage seismic amplitude–based reservoir property inversion
  • Impact accurate construction of static and dynamic flow models

The effect is particularly strong in:

  • Permian Basin reservoirs
  • Middle East reservoirs studied

This talk presents:

  • Specific examples of formation of interbed multiples
  • Examples of multiples “raining” onto target reservoirs
  • Demonstrations of how seismic interpretation is damaged
  • Impacts on reservoir characterization using field and synthetic data

We also discuss:

  • Use of Marchenko imaging to reduce or remove the impact
  • Methods to assess the magnitude and severity of the problem
  • Modern seismic data processing approaches

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Speaker Bios:

Dr. Ali Tura is Professor of Petroleum Engineering at the Colorado School of Mines (CSM) with over 30 years of industry experience prior to academia. Dr. Tura was Geophysical Senior Fellow at ConocoPhillips, Geophysical Advisor at Chevron, and Subject Matter Expert at Shell. He was also advisor on the Global Exploration Review Teams of international oil and gas projects for ConocoPhillips and Chevron.

Dr. Tura is currently Chief Scientist at Tulip Geosciences providing training and consulting on global project reviews and geophysical technology implementation with several energy companies. He is also co-director of the industry consortium Reservoir Characterization Project (RCP) at CSM which is entering its 42nd year with around 20 industry energy company sponsors.

Dr. Tura’s expertise is in oil and gas, carbon sequestration, and geothermal. In particular, reservoir characterization and monitoring, rock physics and AVO, multi-component and time-lapse seismic, borehole geophysics and fiber optics, machine learning, compressive sensing acquisition and processing, full waveform inversion and quantum computing.

Dr. Tura has been awarded Society of Exploration Geophysicists (SEG) Life Member in 2024. He was SEG Distinguished Lecturer in 2021 and received the Best Paper Award at SEGIMAGE conference in 2021 (out of over 700 industry/vendor/academia papers). He serves on multiple SEG, EAGE, and SPE technical committees and is actively involved in organizing various international conferences.