About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

Southeast Asia Petroleum Exploration Society (SEAPEX)

Abstract


Proceedings of the 2017 South East Asia Petroleum Exploration Society (SEAPEX) Conference, 2017
Page 4b

Abstract: Well Failure; the Fairway to Success. How Understanding Failures can be the Key to Discoveries

Jono Weir,1 Greg Browne,2 Tusar Sahoo3

Abstract

Oil and gas drilling is a high cost activity with an inherently low overall success rate. This low probability of success occurs despite the significant level of “science” that is brought to bear by industry, and illustrates the complexity of factors that must align for volumes of hydrocarbons to accumulate and be discovered.

Key to understanding this complexity is historic well data. Many poor well results lead to negative assumptions about their associated plays. More often than not, these assumptions are held in ‘lore’ even if they have not been subjected to rigorous post well Previous HitanalysisNext Hit and often persist over generations.

By taking a holistic approach to exploration that incorporates technical results, an improved understanding of the petroleum system and Previous HitplayNext Hit types that were targeted can be made. Such Previous HitanalysisNext Hit will in turn help increase the chance of success in future wells targeting those plays.

The National Well Audit (NWA) is a comprehensive and auditable reference database and collation of all offshore exploration well data. Each Previous HitplayNext Hit for every well, will be thoroughly assessed for the presence of effective reservoir, seal, trap and charge. The resulting Previous HitanalysisNext Hit is presented on a well by well, Previous HitplayNext Hit by Previous HitplayNext Hit basis, incorporating a regional synthesis of exploration plays and associated key risk elements for each of New Zealand’s petroleum basins.

This staged programme recently assessed the Canterbury-Great South basins and has increased our confidence in understanding the Previous HitplayTop types, petroleum system and risks associated with as yet undrilled exploration targets in these basins.


 

Acknowledgments and Associated Footnotes

1 Jono Weir: New Zealand Petroleum & Minerals, Ministry of Business, Innovation and Employment, PO Box 1473, Wellington, New Zealand; GNS Science, PO Box 30368, Lower Hutt 5010, New Zealand

2 Greg Browne: New Zealand Petroleum & Minerals, Ministry of Business, Innovation and Employment, PO Box 1473, Wellington, New Zealand; GNS Science, PO Box 30368, Lower Hutt 5010, New Zealand

3 Tusar Sahoo: New Zealand Petroleum & Minerals, Ministry of Business, Innovation and Employment, PO Box 1473, Wellington, New Zealand; GNS Science, PO Box 30368, Lower Hutt 5010, New Zealand

Copyright © 2017 by Southeast Asia Petroleum Exploration Society (SEAPEX)