About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract

AAPG Bulletin, V. 101, No. 9 (September 2017), P. 1385-1394.

Copyright ©2017. The American Association of Petroleum Geologists. All rights reserved.

DOI: 10.1306/11291616122

A new approach to backstripping and sequential restoration in Previous HitsubsaltNext Hit sediments

Euan A. Macaulay1

1Midland Valley Exploration, 2 West Regent Street, Glasgow G2 1RW, United Kingdom; [email protected]

ABSTRACT

In this paper, a new approach to calculating and restoring the effects of physical compaction in Previous HitsubsaltNext Hit units is presented. The loading of Previous HitsubsaltNext Hit units and associated physical compaction is controlled by a combination of suprasalt sedimentation and salt movements. Here it is proposed that the change in load affecting the Previous HitsubsaltNext Hit units is equivalent to the thickness between paleosurfaces of the basin (regional levels) reconstructed for successive stratigraphic horizons. This is in contrast to suprasalt units, where the changes in load are equivalent to the thickness of the stratigraphic unit. The new approach is integrated into a complete workflow for sequential restoration in a salt basin, which involves (1) removing the effects of physical compaction in suprasalt units, (2) reconstructing the paleosurfaces of the basin (regional level), (3) restoring faults, (4) unfolding to the reconstructed regional level to restore the effects of salt movement in the suprasalt units, (5) reconstructing the change in load affecting Previous HitsubsaltNext Hit units and restoring the associated physical compaction, and (6) restoring any isostasy and postrift thermal subsidence. Results obtained using this workflow are compared with other methodologies to assess the differences in Previous HitsubsaltNext Hit sediment thickness and structural configurations. These results suggest that the workflow proposed in this paper will improve the accuracy of sequential restoration of Previous HitsubsaltNext Hit hydrocarbon plays, allowing their structural configurations through time to be more accurately quantified, and will ultimately reduce the risks in developing Previous HitsubsaltTop resources.

Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Watermarked PDF Document: $14
Open PDF Document: $24

AAPG Member?

Please login with your Member username and password.

Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].