Petroleum Exploration and Development >

2017 , Vol. 44 >Issue 6: 907 - 918

DOI: https://doi.org/10.11698/PED.2017.06.08

PETROLEUM EXPLORATION

Fine prediction of reef boundary based on slope attributes: A case study of Permian Changxing Formation in Luodingzhai area, Sichuan Basin, SW China

  • WU Yong ,
  • ZHOU Lu ,
  • ZHONG Feiyan ,
  • ZHONG Kexiu ,
  • YUAN Bing ,
  • ZHOU Jieling
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  • 1. School of Geosciences and Technology, Southwest Petroleum University, Chengdu 610500, China;
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China;
    3. School of Electrical Engineering and Information, Southwest Petroleum University, Chengdu 610500, China;
    4. Northeast Sichuan Gas Gield, Southwest Oil & Gasfield Company, PetroChina, Dazhou 635000, China;
    5. Chuanqing Drilling Engineering Company, Geophysical Exploration Company, PetroChina, Chengdu 610213, China

Received date: 2017-04-20

  Revised date: 2017-10-16

  Online published: 2017-11-24

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Abstract

Based on the slope theory in geomorphology, a method, which can identify the boundary of platform reef by high precision slope attribute calculation based on the horizon data of fine seismic interpretation, combining the ancient geomorphic analysis method, was established. The conventional seismic prediction methods, drilling results and the thickness data of Changxing Formation were used to verify and supplement this method. Then, this method was used to identify the boundary of uplifted reef on the planar image in the Permian Changxing Formation in Luodingzhai area of Sichuan Basin. The results show that the reef boundary imaged by this method is consistent with the reef distribution revealed by the drilling, and is clearer in local details. Compared with conventional seismic prediction methods, the reef boundary identified based on the same fine seismic horizon interpretation results by this method has no multiple solution on the planar image.

Key words： Sichuan Basin; Permian Changxing Formation; reef; seismic interpretation; slope; boundary identification

Cite this article

WU Yong , ZHOU Lu , ZHONG Feiyan , ZHONG Kexiu , YUAN Bing , ZHOU Jieling . Fine prediction of reef boundary based on slope attributes: A case study of Permian Changxing Formation in Luodingzhai area, Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2017 , 44(6) : 907 -918 . DOI: 10.11698/PED.2017.06.08

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