Petroleum and Natural Gas Fields in Wyoming Page: 25
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REVIEW OF OIL AND GAS FIELDS
Beaver Creek field was discovered in 1938
with completion of a well in the SE1/4SEl/1
sec. 3, T. 33 N., R. 96 W. This well had an
initial daily production of 9 million cubic feet
of gas from the Lakota sandstone from 8,230
and 8,285 feet, after failure to find oil or gas
in the Nugget sandstone at 8,920 feet. The
field was shut in until a market for the gas was
established in November 1944. Development
of the field was resumed in July 1945.
Unit well No. 7 in the SE1/4SE1/4 sec. 4
was completed in April 1947 as a gas well in
the Muddy sand. Initial daily gas production
was 2.25 million cubic feet, with a shut-in
pressure of 3,200 p.s.i. The producing inter-
val was 8,515 to 8,550 feet.
Unit well No. 3 in the NW1/4NE1/4 sec. 14
was "worked over" in November 1948 and re-
completed in the Frontier formation as a gas
well. Initial daily production was 2.6 million
cubic feet of gas, 60 barrels of distillate, and
3 barrels of water. The producing zones were
as follows: Second Frontier, 7,655 to 7,691
feet; Third Frontier, 7,720 to 7,785 feet;
Fourth Frontier, 7,970 to 7,982 feet; and
Fifth Frontier, 8,064 to 8,123 feet.
Oil was discovered at Beaver Creek in Feb-
ruary 1949, when a well in the NE1/4NW14
SE1/, sec. 10 was completed in the Tensleep
sandstone. Initial daily flowing production
was 481 barrels of 450 API gravity oil. Gas
was produced on this test at a ratio of 431
cubic feet per barrel of oil. This gas contained
4.41 percent hydrogen sulfide by volume. The
producing interval in the Tensleep sandstone
was 10,442 to 10,894 feet. The Tensleep for-
mation at Beaver Creek is very hard and
tight. Core samples show the porosity to be
about 8 percent and the permeability less than
In July 1951 the Mesaverde formation was
proved oil productive. The discovery well,
unit well No. 15, in the SE/4SW1/4NW1/4 sec.
10, was completed for an initial daily flowing
production of 288 barrels of 38.4 API gravity
oil. The original gas-oil ratio was 413 cubic
feet per barrel. The producing horizon was
3,702 to 3,825 feet.
In January 1954 the Madison formation
proved to be the field's third oil-producing
zone. Unit well No. 30-M in the S1/NWW
NE1/4, sec. 10, flowed initially 515 barrels of 420
API gravity oil and 77,000 cubic feet of gas a
day. The well log shows the depth, in feet, to
the top of formations as follows: Mesaverde,
2,440; Cody, 3,754; First Frontier, 6,717;
Second Frontier; 6,820; Third Frontier, 6,913;
Fourth Frontier, 7,113; Fifth Frontier, 7,235;
Mowry, 7,402; Muddy, 7,920; Lakota, 8,264;
Morrison, 8,298; Nugget, 8,833; Chugwater,
9,167; Dinwoody, 10,252; Phosphoria, 10,295;
Tensleep, 10,625; Amsden, 11,088; Darwin
sand, 11,133; and Madison, 11,204. Drill-
stem tests in some of the wells show that the
Darwin sand contains oil in noncommercial
Although shut-in tubing pressures of wells
in the Lakota sandstone were as high as 3,200
p.s.i., the wells would not produce a substantial
volume of gas. To test the effect of shooting
'the sand, wells Nos. 3 and 6 were shot with
solidified nitroglycerin. Well No. 3 was shot
from 9,115 to 9,153 feet with 110 quarts of
solidified nitroglycerin, and the productivity
of the well was increased from 900,000 to
2,000,000 cubic feet of gas a day. Well No.
6 was shot from 8,246 to 8,323 feet with 140
quarts of solidified nitroglycerin; as a result,
the productivity increased from 1.5 million to
3.25 million cubic feet of gas daily. During
1948 serious corrosion of the tubing and well-
head equipment was noted in the wells pro-
ducing from the Lakota The corrosion was
caused by organic acids in the well effluent.
Chemical treatment to retard or eliminate the
corrosion was started.
Analyses of oil from the Mesaverde, Fron-
tier, Muddy, Lakota, and Tensleep formations
are given on pages 330 to 332. Analyses of
gas from Mesaverde, Frontier (five sands),
Muddy, Lakota, and Tensleep are given in
table 8 (p. 287). Analyses of water from the
Mesaverde, Muddy, Cloverly (Lakota?), Mor-
rison, Tensleep, and Madison formations are
given in table 9 (p. 292).
On January 1, 1956, the well status and daily
production, by formations, were as follows:
Mesaverde, 9 oil wells producing 875 barrels
of oil and 86 barrels of water; Tensleep sand,
5 oil wells producing 655 barrels of oil and 30
barrels of water; Madison lime, 10 oil wells
producing 4,377 barrels of oil and 231 barrels
of water; Frontier sands, 6 gas wells produc-
ing 11.6 million cubic feet of gas and no water;
and 7 Lakota and 2 Muddy gas wells produc-
ing 13.7 million cubic feet of gas and negligi-
Oil and gas produced at Beaver Creek field
in 1956 amounted to 2,311,599 barrels and 8.17
billion cubic feet. To January 1, 1957, the
cumulative oil and gas produced amounted to
6,413,203 barrels and 73.7 billion cubic feet.
Gas from the field is piped to the Big Sand
Draw, where it enters the main gas-pipeline
system of the Northern Utilities Company.
Oil from the field is piped to Riverton Dome
field, thence northeastward to about 4 miles of
Shoshoni, where it enters the Winkleman-Lost
Cabin section of the Service Pipeline.
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Biggs, Paul & Espach, Ralph H. Petroleum and Natural Gas Fields in Wyoming, report, 1960; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc38797/m1/39/: accessed April 28, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.