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Book Chapter

Mapping Sediment-Dispersal Characteristics from the Shahejie-1 to Minghuazhen Sequences Using Seismic Sedimentology: Example from Qinan Sag, Huanghua Depression, China

By
Yanlei Dong
Yanlei Dong
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Xiaomin Zhu
Xiaomin Zhu
Faculty of Geoscience State Key Laboratory of Petroleum Resources and Processing China University of Petroleum Beijing 102249, China Also: College of Geosciences China University of Petroleum Beijing 102249, China
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Hongliu Zeng
Hongliu Zeng
Bureau of Economic Geology Austin, Texas, U.S.
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Shutao Bian
Shutao Bian
Faculty of Geoscience State Key Laboratory of Petroleum Resources and Processing China University of Petroleum Beijing 102249, China Also: College of Geophysics and Information Engineering China University of Petroleum Beijing 102249, China
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Kenan Chen
Kenan Chen
Greatwall Drilling Company Mudlogging International Department Beijing 100101, China
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Ping Wang
Ping Wang
Sinopec International Petroleum Exploration and Production Corporation Beijing 100083, China
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Published:
December 01, 2010

Abstract

A seismic-sedimentologic study was performed to map sediment-dispersal characteristics from the Shahejie-1 to Minghuazhen sequences in Qinan sag, Huanghua depression, China. Guided by third-order sequence-stratigraphic correlations from seismic and wireline-log data, we prepared stratal slices from a three-dimensional seismic volume to reveal high-resolution (10-m levels) sediment dispersal characteristics in a relative geologic-time domain. The strata from the Shahejie-1 to Minghuazhen sequences in Qinan sag can be divided into two second-order sequences and 10 third-order sequences. These sequences underwent a structural evolution history from stable rift faulting, to declining rift faulting, to depression with normal subsidence rate, to depression with accelerated subsidence rate. Many factors related to the structural evolution history controlled the sediment-dispersal characteristics, such as type of basin, dynamic mechanism, faulting activity, subsidence rate, presence of paleohighs, and others. Stratal slices depicted that the depositional evolution of these sequences was from braided-delta front, to delta front, to braided river, and finally to meandering river system.

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Contents

GCSSEPM

Seismic Imaging of Depositional and Geomorphic Systems

Lesli J. Wood
Lesli J. Wood
Houston, Texas
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Toni T. Simo
Toni T. Simo
Houston, Texas
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Norman C. Rosen
Norman C. Rosen
Houston, Texas
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SEPM Society for Sedimentary Geology
Volume
30
ISBN electronic:
978-0-9836096-0-5
Publication date:
December 01, 2010

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