New insight of broadseis data acquired in some blocks offshore Southern Vietnam
Abstract
Exploration on the Vietnamese continental shelf has been underway for more than 40 years, leading to the discovery of a number of oil and gas fields, including those with major and unique reserves.
In order to gain a detailed insight into the geology of sedimentary cover and identify productive zones as well as explore new prospective targets, Petrovietnam has initially applied a new method in seismic acquisition and processing - BroadSeis. BroadSeis was acquired with both 2D and 3D surveys over some blocks off shore southern Vietnam. This resulting seismic image has a much wider bandwidth at both ends of the spectrum than an image produced with conventional data.
This paper introduces some innovative enhancements to the traditional technique by the BroadSeis data acquisition and processing using CGG's BroadSeis technology for the first dataset that was recorded over a part of Block 12/11 as well as the experiment 2D BroadSeis belonging to PVN-12 survey.
References
2. R.Soubaras, R.Dowle, R.Sablon. BroadSeis: Enhancing interpretation and inversion with broadband marine seismic. CSEG Recorder. 2012; 37(7).
3. Vietnam Oil and Gas Group. 3D sesimic data processing in Block 12/11 report. 2013.
4. Vietnam Oil and Gas Group. Interpretation of 3266 m2 3D PrSTM and 600km2 3D PrSDM in Block 12/11 report. 2015.
5. Vietnam Oil and Gas Group. 2D broadband seismic data processing report. 2015.
6. Vietnam Oil and Gas Group. Seismic data PVN12 processing and interpretation report. 2015 - 2016.
7. R.Soubaras. Deghosting by joint deconvolution of a migration and mirror migration. SEG Technical Program Expanded Abstracts. January 2010: p. 3406 - 3410.
8. Dechun Lin, Ronan Sablon, Yan Gao, Damien Russier, Danny Hardouin, Bruno Gratacos, Robert Soubaras, Peter Whiting. Optimizing the processing flow for variable - depth streamer data. First Break. 2011; 29: p. 89 - 95.
9. R.Sablon, et al. Demultiple for depth variant cable data from deep water to shallow water. Submission to 81th SEG Annual International Meeting. 2011.
10. Ronan Sablon, Damien Russier, Oscar Zurita, Danny Hardouin, Bruno Gratacos, Robert Soubaras, Dechun Lin. Broadband marine data require new processing techniques. 74th European Association of Geoscientists and Engineers Conference and Exhibition. January 1, 2013.
1. The Author assigns all copyright in and to the article (the Work) to the Petrovietnam Journal, including the right to publish, republish, transmit, sell and distribute the Work in whole or in part in electronic and print editions of the Journal, in all media of expression now known or later developed.
2. By this assignment of copyright to the Petrovietnam Journal, reproduction, posting, transmission, distribution or other use of the Work in whole or in part in any medium by the Author requires a full citation to the Journal, suitable in form and content as follows: title of article, authors’ names, journal title, volume, issue, year, copyright owner as specified in the Journal, DOI number. Links to the final article published on the website of the Journal are encouraged.