Abstract

The Tiehchanshan structure of NW Taiwan: A potential geological reservoir for CO2 sequestration

Highlights

  • For carbon dioxide (CO2) sequestration in the subsurface, fault-related folds are important sites for storage of CO2 either in saline aquifers or in existing oil and gas fields (Baines and Worden 2004)

  • One of the main purposes of this study is to use a grid of seismic sections and wellbore data to establish a 3-D geometry of the fold and the fold-forming thrusts

  • There several reasons for the Yutengping Sandstone to be selected as the target reservoir

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Summary

Introduction

For carbon dioxide (CO2) sequestration in the subsurface, fault-related folds are important sites for storage of CO2 either in saline aquifers or in existing oil and gas fields (Baines and Worden 2004). One of the main purposes of this study is to use a grid of seismic sections and wellbore data to establish a 3-D geometry of the fold and the fold-forming thrusts. Another purpose is to analyze lithofacies variation of the target reservoirs of the Upper Pliocene Yutengping Sandstone and its cap rock, the Lower Pleistocene Chinshui Shale. The reconstructed subsurface structure and facies features of the target reservoirs are combined to build a geological model for CO2 sequestration

Tectonic Settings of Foothills Belt
Late Paleogene and Neogene Lithostratigraphic Units
Previous Studies of Tiehchanshan Structure
Fault-Related Fold Models
Kinematics
Reservoir Stratigraphy
New Model for Fault Geometry of the Tiehchanshan Structure
Character of Transfer Between Folds of Opposite Vergence
Correspondence Between Fold and Fault Structures
Assessment of Geological Model for CO2 Sequestration
Findings
Conclusions
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