GEOPHYSICAL RESPONSE OF THE LIUHUA CARBONATE PLATFORM IN NORTHERN SOUTH CHINA SEA

ZHANG Guangxu; WU Shiguo; ZHUWeilin; SHI Hesheng; CHEN Duanxin

doi:10.3724/SP.J.1140.2011.04105

2011 Vol. 31, No. 4

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Article navigation > Marine Geology & Quaternary Geology > 2011 > 31(4): 105-112

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ZHANG Guangxu, WU Shiguo, ZHUWeilin, SHI Hesheng, CHEN Duanxin. GEOPHYSICAL RESPONSE OF THE LIUHUA CARBONATE PLATFORM IN NORTHERN SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2011, 31(4): 105-112. doi: 10.3724/SP.J.1140.2011.04105

Citation:

ZHANG Guangxu, WU Shiguo, ZHUWeilin, SHI Hesheng, CHEN Duanxin. GEOPHYSICAL RESPONSE OF THE LIUHUA CARBONATE PLATFORM IN NORTHERN SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2011, 31(4): 105-112. doi: 10.3724/SP.J.1140.2011.04105

GEOPHYSICAL RESPONSE OF THE LIUHUA CARBONATE PLATFORM IN NORTHERN SOUTH CHINA SEA

1. Graduate School, the Chinese Academy of Sciences, Beijing 100049;
2. Institute of Oceanology, the Chinese Academy of Sciences, Qingdao 266071, China;
3. China National Offshore Oil Corp, Beijing 100010;
4. Research Institute, Shenzhen Branch of CNOOC Ltd, Guangzhou, 510240

Received Date: 10 February 2011

Revised Date: 10 March 2011

Abstract

Abstract

The complexity of carbonate deposition and diagenesis leads to the carbonate reservoir heterogeneity. The analysis of the intersections of well logs in the area of the Liuhua oil field on Dongsha massif suggest that velocity, density and seismic acoustic impedance are the most relevant physical parameters of porosity. Based on the quantitative analysis of reservoir physical properties from 3d seismic and logging data, we summarized in this paper the heterogeneous characteristics of the reef carbonate platform, and described its physical properties, by using the techniques of seismic inversion and attributes analysis. The results show that the seismic reflection, acoustic impedance inversion, seismic amplitude attributes, and coherence can be used in description of carbonate reservoir characteristics. Finally, we analyzed the genesis of the heterogeneity of reservoir of the Lliuhua oil field. It is concluded that the karst and sinkhole caused by acid gas are one of the main reasons for the heterogeneity of a reservoir.
- Liuhua oil field /
- carbonate limestone /
- character of geophysical /
- heterogeneity /

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References

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