Dense sampling in marine seismic: Efficiency in acquisition without compromising data quality

2018 Honorary Lecturer
South Pacific

Mazin Farouki

PGS Geophysical Advisor, Marine Contract, Asia Pacific
Kuala Lumpur, Malaysia

Summary

The marine seismic industry is constantly striving for greater efficiency in acquiring seismic data: the quicker a survey area can be acquired, the more competitive the cost to the customer. But acquiring large surveys with unconventional spreads can impose limitations on the recorded data, so that certain geophysical requirements for the exploration or development objectives may be compromised. This is especially the case in shallow water areas, where traditionally the width of the streamer spread is restricted in order to image the shallow section.

We will look at some modern acquisition approaches for towed streamer seismic currently offered in the industry; these are very different ideas, but each aims to provide increased cross-line density or improved acquisition efficiency, or indeed, both.

In particular, we will look at the use of multiple sources instead of the conventional dual-source configuration, the use of the cross-line component in multi-sensor recording, an approach based on compressive sensing, and an imaging approach that exploits free surface multiples to provide greater illumination of the near surface. 

For each of these approaches we look at its value proposition and ask how well it stacks up to its promise, and what are, if any, the associated limitations and concerns regarding the resulting “data quality”?

Biography

Maz Farouki

Maz Farouki has a BSc degree in physics from Manchester University and more than 40 years of industry experience with seismic contractors, mostly on overseas assignments. He has lived and worked in the United Kingdom, Zaire, Pakistan, Algeria, Egypt, the United States, Australia, Norway, Singapore and Malaysia, holding technical and management positions in data processing, imaging, and marine geophysics. Most of his tenure has been with two employers: the Seismograph Service Companies from the late 1970s and Petroleum GeoServices (PGS) from the 1990s. For a number of years he specialized in velocity model building and depth imaging at a time when the discipline was in its infancy in the industry. His current position is geophysical advisor for PGS Asia Pacific Marine Contract based in Kuala Lumpur, Malaysia. He is an active member of SEG and EAGE and has received ‘best paper’ awards at industry regional conferences and workshops.

Schedule

Please contact Host Sections for lecture locations and dates.

Date Locations Host
19 Mar Singapore, Singapore  National University of Singapore Geophysical Society
2 Apr Beijing, China China University of Petroleum (Beijing)
3 Apr Beijing, China Chinese Academy of Science
4 Apr Xi’an, China Chang’an University
6 Apr Xi’an, China Northwest University Geophysical Society
9 Apr Chengdu, China Chengdu University of Technology
10 Apr Chengdu, China Southwest Petroleum University, Student Chapter
11 Apr Changsha, China University of Central South Geophysical Society
13 Apr Singapore, Singapore  SEAPEX SINGAPORE CONFERENCE
20 Apr Kyoto City, Japan Kyoto University
24 Apr Tokyo, Japan SEGJ/SEAPEX Joint Meeting
1 May  Adelaide, Australia  ASEG SA/NT Branch
2 May  Perth, Australia  ASEG WA Branch
8 May  Brisbane, Australia University of Queensland
8 May  Brisbane, Australia ASEG QLD Branch
9 May  Canberra, Australia  ASEG ACT Branch
10 May  Melbourne, Australia  ASEG VICTORIA Branch
15 May Dunedin, New Zealand  Otago University
17 May Auckland, New Zealand University of Auckland
24 May Jakarta, Indonesia SEAPEX
TBD Kuala Lumpur, MY PETRONAS
TBD Ipoh, Malaysia University of Teknologi Petronas
TBD Penang, Malaysia  University of  Sains Malaysia

SEG Honorary Lecturers
Sponsored by:

Shell

 

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