Overnight
the rig was moved slightly south from 2a to site 2b. We hypothesize that part of our
probklems may stem from the hole inclination as well as the swelling
clays and porous sandstones. We are thus inclining this hole only 15°
(as opposed to 30°) from vertical with and azimuth of south. |
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Rigg
being moved and set up at site 2b. We are hoping with a lower
inclination and our experience with 2a, we will be able to core deeper. |
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(1) coarse sandstones. |
(2) Gravelly sandstone. |
(3) Conglomerate. |
We
reached a depth of 85 ft today in a mixture of coarse clastics and less
abundant mudstones. These are clearly the Martha Butte beds. Some of
the sandstones are highly porous and nearly unconsoldated meaning they
will have to be cased off to prevent loss of circulation and hole
collapse. |