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Book Chapter

Three-dimensional Seismic Survey in the DLB Prospect of the Bohai Bay Basin

By
Lu Banggan
Lu Banggan
Exploration Department, Ministry of Petroleum Industry, Beijing.
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Wen Yanjun
Wen Yanjun
Dagang Petroleum Administration Bureau, Ministry of Petroleum Industry.
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Published:
January 01, 1989

Abstract

We present an example of a 3-D seismic survey in the DLB area of Bohai Bay Basin, giving a detailed introduction on acquisition, interpretation, and geological correlation. This three-dimensional (3-D) project was carried out after two-dimensional (2-D) seismic exploration was completed and six wells drilled with only one well successful. The resolution of 3-D data is obviously better than 2-D data, with higher signal-to-noise (S/N) ratio and clearer faults. On the basis of the structural map of the oil horizon from 3-D data, all the suggested new wells drilled in the lower Tertiary layers have produced oil. A new and hopeful evaluation on hydrocarbon potential has resulted. The DLB area is in production now and is becoming a developing oil field. Petroleum reserves have about doubled in size since the 3-D survey was undertaken. The cost of the 3-D seismic survey corresponds roughly to the cost of one exploration well.

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Contents

Society of Exploration Geophysicists Geophysical References Series

An Overview of Exploration Geophysics in China — 1988

Zhao Jingxiang
Zhao Jingxiang
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Wang Yanjun
Wang Yanjun
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Fu Xuexin
Fu Xuexin
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Stanley H. Ward
Stanley H. Ward
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Society of Exploration Geophysicists
Volume
3
ISBN electronic:
9781560802662
Publication date:
January 01, 1989

GeoRef

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