Montana oil and mining journal. [volume] (Great Falls, Mont.) 1931-1953, 1932-04-23

sz10 Gast ID a four-gook nama
Then 81 12es feet me crew ran
five4ooR sdrew and is that
screw picked an aha top Of tbs
Ellis sand. which lie the normal
oil producing horizon Of Northern
Montana. A little oil appeared
at the top OF the sand--enouKh
to discolor the tools. bailer and
lines.
Ia 50 Feee Higher
The log Of the well shows sand
with one one-foot line break
to s77s feet where the formation
changed to gray lime. similar
to that found in tue HardweII we'll
ct 1856. The BardweIl wen was
drilled to ss10 and there aband-
oned. The saturated oil sand
rather than the showing Of oil
az TIE Bardwell well caused the
Standard 70 take additional leas-
es and to driil second test On
the structure. one and three
quarters miles north A struc-
tural difference Of from SO TO
20 feet between the two wells
indicates that there Is little Ques-
ton about the existence OF z
structure but the fact that there
was q saturated sand In the
first location and All water IL
the same sand In the second I
location. although the latter was
higher, Indicates, geolOgists sag
that there Is some interruption |
Of migration between the two.
Biologists for the Standard agree
with others that there Is spot
between the Two that is structur-
ally higher than the well on the
Ross farm. L. c. BardweIl. the
geologist who was responsible
for the development OF Utopia,
maintains that there is 8 trans
vsrse fault between the two wells
and points out evidence OF fault
ing in long coulee which crosses
the top Of the structure 70 sup
port his statement that the
fault has a displacement OF so
feet. which would definitely shut
off the migration Of oil. The
south side is the high" side Of
the fault
A well drilled on what was
known as Lincoln dome, east OF
the Bardwell wen and 500 feet
lower structurally. had a flow
OF 100000 feet Of gas. cor
responding in pressure the evil
dence OF gas in the Bardwell
wen. A second well drilled 400
feet down the southeast flank
OF Utopia structure near Joplin
had a quantity Of free oil At the
top Of the Ellis sand with only
a foot or two of saturation fol-
lowed by water The fact that
the Bardwell we'll had IA feet Of
saturation leads to the conclusion
by BardwelI that there Is COM
mercial accumulation on the
'high" side Of the fault and
while this win afford a limited
area. yet dt will CORE
,pond il both probable producing
area and in enclosure with the
structures which have produced =
80 per cent OF the oil in Montana
including the principal pools in
xevin-Sunburst Pondera and Cat
Creek fields The largest Kelvin q
sanburst pool. the East pool, c
overs 1900 acres. Cat Creek J
overs 600 acres. Pondera a
overs approximately 1909 acres. 7
NE proven area OF Bannatyne Q
overs less than 1900 acres.
Il would be willing to put my
money into another well" Bard
relI said Thursday. Il feel that vi
he California well merely serves g z,
0 prove the accumulation from q
he south and east and am "
onvinced that there is a pool. 6 6
18th big head Of water behind 81
!. against the fault" Mr. Is
IaraweM pointed out that wells Of
aver on structure we're flowing
-ater wells. rsflscting the hy~
rostatic head Of the region as =
leal for accumuIation and pro-
ucion Of Oh in the Utopia
iructure.