Bioturbation: Reworking Sediments for Better or Worse

Publication: Oilfield Review
Volume: 26
Issue: 4
Publication Date: 12/03/2014

Bioturbation is the disturbance of sediments or soil by living organisms. Petroleum geologists use bioturbation to recognize key sequence stratigraphic surfaces and infer characteristics of the depositional environment. Bioturbation often affects porosity and permeability. Field examples show that bioturbation, which can be identified in core samples and image logs, can have a significant impact on hydrocarbon production.