Appeal No. 1999-0444
Application No. 08/758,655
Similarly, we also note that Crawford '642 discloses in
column 1, lines 22-40 that:
Presently some of the above mentioned
applications are performed by coil tubing units, and
others by solid wireline equipment. Although a few
applications can be performed by both, many
advantages can be realized by using coil tubing
units. For instance, the solid wireline units, in
many cases, cannot be used to service a well. A
wireline, cannot be lowered down the well hole where
there is an accumulation of debris or sand or
deviation of a hole; one additional example is
horizontal well completion...
A wireline does not have the strength of the
coil tubing unit which might be necessary to pull a
given device from the well.
Ross '860 teaches that electrically actuated downhole
well tools such as perforating guns and packers may be run in
a wellbore by either a wireline or tubing (see column 1, lines
19-31 and column 13, lines 5-20).
In view of the above advantages taught by either Ross
'860 or Council '046 or Crawford '642, it is on opinion that
one of ordinary skill in the art would have been motivated by
them to use a coiled tubing to run the tool of Leutwyler '803
into the well instead of the wireline used therein.
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