Study of Subsurface Flow Direction in North Perth Basin -By Investigation of Existing Contemporary Stress Measurements and Electromagnetic DatasetsChen Junming - 2013
Australian school of petroleum (ASP)
University of Adelaide
Firstly, both Magnetotelluric (MT) phase data and stress regime data are sensitive to subsurface current flow, to more specifically, MT phase data is sensitive to resistivity which is mainly affected by underground flow while the stress regime is the main reason of subsurface structures including faults and fractures that serves as a pathway for fluid to flow. Hence, it is possible to qualitatively find the correlation between MT data and stress data. Secondly, the MT phase data (impedance tensor) is considered to be a second rank tensor while the stress regime data is also a second rank tensor, which may be a potential clue that the relationship between MT data and stress data can be determined quantitatively by using mathematic method. In general, it is highly feasible to find the correlation between MT data and stress data both qualitatively and quantitatively.