Impact of Bioturbation on Reservoir Quality and Production – A Review

Abstract

Bioturbation is a typically small scale yet potentially significant geological process altering rock properties by reworking. For many years, bioturbation studies found application in exploration geology to estimate paleobathymetry, interpreting depositional environment and identifying key stratigraphic surfaces. These act as vital inputs to the geological models, for determination of source rock potential, reservoir quality and modeling of petroleum systems. Recently geologists extended the application of bioturbation studies to address production related challenges. Recognizing the bioturbation effects and incorporating them in reservoir simulation models can improve production predictions and enhanced oil recovery operations. This paper discusses bioturbation and its effects on reservoir quality, its performance and production.

Global Carbon Cycling on a Heterogeneous Seafloor

“…The functioning of most of the global seafloor depends largely upon the addition of oxygen and organic matter to the sediment-water interface [7] (Figure 1). Biogeochemical and ecological approaches both have value in assessing these processes, but remain poorly reconciled [8], an issue also noted in geological [9] and paleobiological [10] studies. Previous authors have highlighted the need for all types of model to improve how they represent sedimentary processes [8,11,12].…”