Sub-basalt seismic imaging in southeastern Greenland, Arctic

被引：0
|
作者：
Wu Q. [1 ]
Liu Q. [1 ]
Fang Z. [2 ]
Zhang W. [3 ]
Liu J. [2 ]
Zhang Z. [2 ]
机构：
[1] College of Petroleum Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, Guangdong
[2] Tepu, GEO-COSL, CNOOC, Zhanjiang, 524057, Guangdong
[3] CNOOC International Limited, Beijing
来源：
Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting | 2019年 / 54卷 / 04期
关键词：
Acoustic wave equation; Arctic; Basalt; Broadband; Forward modeling; Sub-basalt imaging;
D O I：
10.13810/j.cnki.issn.1000-7210.2019.04.007
中图分类号：
学科分类号：
摘要：
Volcanic basalts are widely distributed in JMY area of southeastern Greenland, Arctic. It is often compromised in sub-basalt imaging. Numerical simulation results show that low frequency is useful for geometrical characteristics and physical properties of the Mesozoic sediments, which are covered by Eocene and Oligocene basalt. The ana-lysis results are used to guide the processing of broadband seismic data and protect low frequencies signal of deeper reflectors. It is noticeable that the data quality of deep data is improved by broad-band recording through ghost elimination. The results provide a more relieable interpretation, which reveal the thickness and distribution of Mesozoic sediments source, is conducive to the hydrocarbon exploration. © 2019, Editorial Department OIL GEOPHYSICAL PROSPECTING. All right reserved.
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页码：775 / 781
页数：6
相关论文
共 28 条
  • [1] Lei S., Yin J., Arctic petroleum development: status quo and China's oil companies's strategy, China Mining Magazine, 23, 2, pp. 16-19, (2014)
  • [2] Ziokowski A., Hanssen P., Gatliff R., Et al., Use of low frequencies for sub-basalt imaging, Geophysical Prospecting, 51, 1, pp. 169-182, (2003)
  • [3] Planke S., Alvestad E., Eldholm O., Seismic characteristics of basaltic extrusive and intrusive rocks, The Leading Edge, 18, 3, pp. 342-348, (1999)
  • [4] She D., Guan L., Xu Y., Et al., Applying of low-frequency signal to improve imaging quality below shielding high-velocity basalt, Oil Geophysical Prospecting, 42, 5, pp. 564-567, (2007)
  • [5] Sun W., Fu L., Wan X., Seismic illumination analysis based on phase coding, Oil Geophysical Prospecting, 42, 5, pp. 539-543, (2007)
  • [6] Sun W.J., Zhou B.Z., Hatherly P., Et al., Seismic wave propagation through surface basalts: Implications for coal seismic surveys, Exploration Geophysics, 13, 1, pp. 1-8, (2010)
  • [7] Fu L., Xiao Y., Sun W., Et al., Seismic imaging studies of complex high and steep structures in Kuqa depression, Chinese Journal of Geophysics, 56, 6, pp. 1985-2001, (2013)
  • [8] Zhou B.Z., Hatherly P., Peters T., Et al., Coal seismic surveying over near-surface basalts: Experience from Central Queensland, Australia, Geophysics, 79, 2, pp. B127-B140, (2014)
  • [9] Widow E., Sources of ocean island basalts: A review of the osmium isotope evidence, Physica A, 244, 1-4, pp. 484-496, (1997)
  • [10] Ali J.R., Lo C.H., Tompson G.M., Et al., Emeishan basalt Ar-Ar overprint ages define several tectonic events that affected the western Yangze platform in the Mesozoic and Cenozoic, Journal of Asian Earth Science, 23, 2, pp. 163-178, (2004)
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