The usage of dipole-dipole array in Lumpur Sidoarjo (Lusi)

[aruhiruna]

TL;DR Summary

Does anyone know whether the dipole-dipole configuration has been used for extracting resistivity tomography in Mud Volcano of Lumpur Sidoarjo (Lusi) in Sidoarjo, Indonesia?

Does anyone know whether the dipole-dipole configuration has been used for extracting resistivity tomography in Mud Volcano of Lumpur Sidoarjo (Lusi) in Sidoarjo, Indonesia?. If there has already exist, please inform me... Thank you for the help.

 

[Baluncore]

Welcome to PF.

https://en.wikipedia.org/wiki/Sidoarjo_mud_flow
There may be someone here who knows the answer, but this question is probably better answered by a search of geophysical survey journals.
https://www.agiusa.com/dipole-dipole​-​array​

Since the mud-volcano is very flat, and access is difficult, I doubt it would be possible to extract an underground structure using resistivity methods. Resistivity tomography is more applicable to mapping the depth of horizontal stratigraphic sequences, or to locating discontinuities or faulted boundaries below overburden.

What information do you required?
What might be done if more information was available?

 

[aruhiruna]

Thank you for the answer. I am beginning to explore the Lusi in Wikipedia. I am especially in need of the information on electrode deployment. Then, I might adapt it to my own tool setting. Thank you

 

[Baluncore]

I think the mud is probably marine, originally volcanic ash, washed into the sea. That mud will probably be more conductive than the local solid rock layers that cap the mud formations. I think the layer of conductive mud on the surface, will screen or hide what is happening below from your electrodes on the surface.

If I wanted to study the Lusi, I think I would place seismic geophones around the site. It should be possible to correlate and plot the sounds in 3D, giving a model of the mud flow where it meets the solid rock. That will show the depth and diameter of the column of rising mud. How much noise is made at depth?

If a circular wall or coffer dam could be built on the surface, around the mud outflow, as the wall gets higher and the mud deeper, the hydrostatic weight of mud might be sufficient to stop the flow. What was the mud static pressure when it was drilled, and how high would the wall need to be?