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Petrophysical changes associated with bioturbation

on . Posted in Published

nikki aapg

Nikki has just had her first "first author" paper published.  This is a piece of collaborative work that goes back to the days when Rudi Meyer was with us (now at Calgary), and constitutes Allison Moore-Turpin's first paper as well!

 

Tonkin, N.S., McIlroy, D., Meyer, R. & Moore-Turpin, A. 2010. Bioturbation influence on reservoir quality: A case study from the Cretaceous Ben Nevis Formation, Jeanne d'Arc Basin, offshore Newfoundland, Canada. AAPG Bulletin, 94, 1059-1078.

http://aapgbull.geoscienceworld.org/content/vol94/issue7/

 

The paper looks in detail at the effects of trace fossils and ichnofabric on reservoir quality relative to the host sediment.  The techniques used involve large thin slicing, probe-permeametry and petrography, combined with ichnofabric analysis.  In my opinion, this type of approach is the most important use of ichnofabric analysis (i.e. for reservoir characterization).  In this paper we propose a classification of bioturbational styles and hypothesise what their effects on reservoir quality should be.

 

Other ongoing, and proposed, work aims to classify the main bioturbating organisms in terms of our classification of trace fossils as "sediment mixers", "sediment cleaners"; "sediment packers"; "pipework builders".

 

Well done guys!