reply to post by tanker292
Tanker292
By volcanic activity - we take it to mean magma being formed and rising (due to difference in density) to the top. Since it is regional, you normally
have a volcanic arc (a chain of volcanoes). You can read more at the USGS website.
So for the magma volcanic activities to reactivate, it needs for more than just drilling - so if the geologic processes are not there you cannot have
magma volcanoes.
Having said that, I have seen from the videos here what seems to be hard layers / beds gently folded or flow. The video is very blur so there is a bit
of guess work. Such folded beds at the seafloor do not appear to be consistent with the seabed morphology and the shallow stratigraphy of the area. So
on that basis, a magma volcano is quite possible in the past but not in the present.
However, past magma activities do introduce structural deformities and the old volcano would provide a good conduit to for migration paths of asphalt
and petrogenic gas. So mud volcanic activities (essentially hydrocarbon leaking out thru the volcanic vents) dissolving the clay to create mud slurry
and flowing thru to the seafloor; yes.
The drilling and subsequent blow and oil gushes probably caused more underground cavitation and erosion along all the pathways which might have been
blocked before. See my past articles at bklim.newsvine.com.
So in this sense, yes the drilling reactivated or increased the flow of hydrocarbon fluid out of the reservoir. Once it started the chain of events,
it was difficult to close it back as the friable formation would have been worn off badly. That is why many geologists think (like I do) that BP
would not be able to close back the reservoir.
Instead of accepting this fact and taking the appropriate remedial actions, they chose to fool the world at large.
It is just plain reckless and selfish. You should read my latest posting because it gives me heartache when BP could have done the right thing instead
of trying to cover up. In the first place, it was plain obvious they should have relocated the drilling location to a safer location just 1 or 2 km
south. They couldn't have chosen the worst possible location to drill into an accident. With all the advanced technology, it almost appeared as if BP
had wanted the blowout to occur.
So in summary, mud volcano yes, lava (magma) volcano no. But it does really matter because the old lava and mud volcanic activities had already set
the stage for this disaster and BP just walked in blindly. BP is willfully negligent and everyone in the GUlf region affected by it should initiate a
class action against BP. I will be willing to testify in court. I have written to a few lawyers but none seems anxious to take it up. Probably BP is
too big a giant.
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edit on 13-11-2010 by BK Lim because: (no reason given)