Page 6 - My FlipBook

DISASTER AT PLATFORM A

UNION OIL gas
Platform A D bubbles
0 ocean surface

200
C ocean
C oor
cement rock,
400 sheath sand, and
A sedimentary
B deposits
600
800 oil-bearing sands

1,000

1,200 A Most of the oil and gas
Feet below the surface of the ocean 1,600 B the end of the cement sheath.
1,400
leaked through the ssures at
These ssures for med due to
the immense pressure created
by capping the well at the
platform.
1,800
Some of the oil and gas leaked
through ssures in the earth
that formed about 100 feet
below the end of the cement
2,000
sheath.
shale
Well A-21
2,200 C Oil and gas rose to the ocean UNION OIL and sand
oor and then up to the surface
patches
of the water.
D Gas bubbles and oil on the
2,400 surface signaled that a blowout
had occurred.
2,600
2,800
3,000
impermeable
3,200 shale rock

3,400 oil and natural gas

3,600 salt water and
rock sandstone mud

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