Great info PuterMan
Here is something I found:
A relief well provides access to a blown-out well far beneath the seabed, at or close to the bottom of the problem well.
* Typically, it is drilled parallel to the problem well through multiple layers of rock and sometimes salt. Then the drillbit curves to intersect with
the problem well. This is how BP's relief wells are being drilled.
* As of June 18
, the first well had been drilled to 10,677 feet (3,254 metres), or 2 miles (3.2 km), beneath the seabed. The second well had
reached 4,662 feet (1,421 metres), or eight-tenths of a mile (1 km).
The first well also was within 200 feet (61 metres) of the side of the blown-out well, but had to continue drilling down to find the right intersect
* The drilling process is lengthy because it must stop at points along the way. That allows drillers to insert piping, called casing, to hold the well
open and prevent a cave-in.
What I don't like if the final point in this article:
* If the Macondo well is too damaged to revisit, it is possible the company could turn one of the relief wells into a producing well.
If you want to read this yourself: www.godlikeproductions.com...
This is confusing. How could they have been that close so long ago?