|Session:||Session I - Acquisition|
About the talk
Title: Broadband seismic: Has it delivered on its promise?
"Much has been said about broadband seismic. The initial excitement has passed, and we can now take time to reflect on what we have learned, what we have gained from the new technologies, and whether our new data have lived up to our expectations.
First, I will present a brief history of broadband will be presented. Which are the key technological advancements that have led us here, and which have been superseded or have fallen out of favor? What can we expect and what should we demand from our future surveys?
Secondly, many promises have been made about broadband. I will show a few examples from Statoil’s broadband portfolio from Brazil and the rest of the world that illustrate to what extent the data have delivered on these promises." (Aaron Pearson)
About Aaron Pearson
Aaron spent his formative geophysical years in Alaska, first on a North Slope seismic crew, and then at the University of Alaska Fairbanks studying the shallow seismicity of volcanoes. After ten years focused primarily on onshore seismic, Aaron left the U.S. and moved to Norway with Statoil. The last five years (three in Bergen, two in Rio) have been an exciting time to learn the marine seismic business, with major advancements in depth imaging, FWI, acquisition design, and broadband.
In his spare time, Aaron can be found with his wife and two kids either listening to chorinho at Praça São Salvador or climbing a morro. His best geophysical thinking is done while running at the Aterro do Flamengo.
|Who:||Mehmet C. Tanis|
|Session:||Session II - Processing I|
About the talk
Title: Broadband Seismic – Opportunities and Challenges
Broadband or extended bandwidth seismic over the last few years has grown to become nearly the standard for marine acquisition method while the acquisition and processing of ultra-low and high frequencies still remain a challenge for both marine and land. These seismic broadband solutions range from acquisition based approaches using various purpose built marine streamer configurations to processing based solutions that aim to remove the effects of the ghosts from the conventional seismic data.
While acquisition based broadband solutions in general provide an effective and reliable solution, for the conventional seismic, however, this matter is more complicated. In recent years a multitude of broadband processing workflows and solutions have been proposed in the industry. While all these various methods and workflows aim to extend the seismic bandwidth on both the low and high end of the spectrum, there are still many questions to answer to reach an industry-wide standard such as
- What benefits do these workflows provide over post-stack noise attenuation and spectral shaping?
- How effective are they compared to various acquisition approaches?
- What are the data assumptions for a successful outcome in regards to S/N, sampling, tow depths, amplitude, phase etc?
- How different approaches compare relative to each other?
- What issues and challenges these approaches present for 4D seismic?
It is important that the industry converges on a set of guidelines addressing these important questions.
Regardless of its acquisition or processing origin, another important aspect for broadband seismic is, it requires more than ever the input and involvement of the integrated geoscientists for establishing and revising interpretation and analysis guidelines to extract maximum value from the broader band seismic on their workstation.
About Mehmet C. Tanis
Mehmet has received his PhD from the University of Texas at Austin. Over his 16-year BP career, Mehmet has been involved in a range of acquisition and processing projects in support of BP worldwide business at GoM, Caspian, Black Sea, North Sea, Trinidad, Egypt Nile Delta, Gulf of Suez as well as onshore US, Libya and Brasil. More recently he has been providing support for a number of Broadband acquisitions and processing projects in Brasil and Uruguay.
He enjoys spending his spare time with his family and friends.
|Session:||Session V - Inversion and Reservoir Characterisation|
About the talk
Title: Broadband Data – Integration of the Knowledge
Broad Band technology used for seismic data acquisition opened many possibilities for detail data interpretation and reservoir characterization in a complex areas where resolution is necessary. During the last few years our industry saw many examples of fantastic dataset with significant data quality improve in terms of signal to noise ratio, vertical and lateral resolution and etc..
Is this enough to assume that Broad Band data by definition will provide the superior data quality ? Is there an additional work that should be done to guarantee that results will meet the expectations? And how should we set those expectation? These are some of many questions we need to find answers before we commit to broad band or any kind of new technologies.
About Diana Sineva
Senior exploration geophysicist in Repsol Sinopec Brazil since 2008.
More than 15 years of experience in seismic data processing&imaging . Mainly working with Seismic quality assurance through seismic data acquisition planning and execution, processing, data Imaging, data preconditioning for reservoir characterization, Involved in several reservoir characterization projects as technical adviser.
Graduated from Russian State University of Oil and Gas. Master of science in geophysics.
|Session:||Session VII - Future Trends|
About the talk
Title: QGEP Experience with Broadband Seismic Data - Examples in Pre-salt Session and Eocene Oil Field -Santos Deep Water
Two Santos Basin - both post- and pre-salt - broadband data examples will be presented. Focus will be to show data (including outstanding results from spectral decomposition on Eocene turbidite), comparison with 'conventional' and legacy data and some interpretation and reservoir characterization results.
About Carlos Rodriguez
Manager for Geophysics and Reservoir Characterization at Queiroz Galvão E&P since 2011, Carlos has almost 30 years' experience in the oil business, on Exploration and Reservoir Characterization and a PhD from University of Calgary on Exploration Seismology. He had been at Petrobras for more than 25 years, working on marine seismic acquisition, processing, interpretation and reservoir characterization on giant fields (Marlim and Roncador). He moved to International Area in 2006, working on Exploration, Development and Production projects for18 different countries. His areas of interest are seismic attribute analysis, seismic acquisition and processing, rock-logs-seismic integration, seismic inversion, 4D seismic, multi-component seismic, and PSDM velocity modeling and algorithms.