American Oil and Gas Reporter - January 2015 - 99

Unconventional Resource Science
Production Validation
Cumulative 180-day production numbers
were compared with the actual 180-day
numbers for the two wells in the study. In
both cases, the actual production numbers
were higher than the model had predicted
(Table 3). In fact, the 180-day cumulative
production was approximately 30 percent
higher for the State of North Dakota 103HA and 25 percent higher for the Adam
Good Bear 15-22HW. Exceeding expectations was somewhat expected since the
model was not able to account for isolation
type or number of entry points.
No study of this size and scope is
without uncertainty from a variety of
sources, and acknowledging these risks is
necessary for continued improvement.
Some of the sources of uncertainty were
geologic assumptions, data acquisition limitations leading to nonunique or inconsistent

Stone Energy Completes
Point Pleasant Shale Well
LAFAYETTE, LA.-The Pribble 6HU
exploration well at the Pribble Pad in
West Virginia that is targeting the Utica
Shale produced from a 3,605-foot lateral
at an average gas sales rate of 30 million
cubic feet a day. Stone Energy Corp.
says production was for the last 24 hours
of a five-day test period on a final choke
size of 28⁄64 inches, with 6,500 psi of
flowing casing pressure.
The Pribble 6HU was completed in
the Point Pleasant formation with 17 fracture stages, with 210 feet of spacing between each stage and 375,000 pounds of
proppant in each stage. Stone Energy
says the well was drilled to a true vertical
depth of 11,350 feet.
The test flow calculates to a rate of
8.0 MMcf/d per 1,000 feet of lateral
length based on the total effective lateral
length of 3,605 feet for the test well,
which Stone Energy says is one of the
highest rates recorded for the Utica Shale
in the area.
"The results from the Pribble 6HU
well confirm the high potential of the
Utica Shale underlying our liquids-rich
Marcellus acreage position," says David
H. Welch, chairman, president and chief
executive of Stone Energy. "This well,
along with the numerous third-party Utica
tests surrounding our acreage, has derisked
our Utica position significantly."
r

data, nonstatistical samples, using numbers
to describe qualitative interpretations, and
differences in target metrics across the
study. Integrating independent datasets assisted in mitigating the impacts of some of
this uncertainty on study results.
The design components preferred by
different datasets or different target metrics
were not always in agreement. When the
studies agreed, confidence in the results
increased, and when they disagreed, a
lower level of confidence was acknowledged. Disagreement required that internal
experts discuss the relative strengths and
weaknesses of the studies for those specific

JESSICA BARHAUG is a senior
completions engineer at WPX Energy,
specializing in hydraulic fracturing
design and evaluation, completions, rate
transient analysis, and geomechanics.
Before joining WPX in 2011, she was a
production stimulation engineer with
Schlumberger Data & Consulting Services, specializing in tight gas and shale
formations. Barhaug holds a B.S. in engineering with an environmental specialty
and an M.S. in petroleum engineering
from the Colorado School of Mines.
VICTORIA MARTINEZ KING is the
completions engineering team lead for
the Williston Basin at WPX Energy. She
joined the company in 2008 as a completions engineer in the Piceance Basin,
before being promoted to completions
engineer in the Williston. Martinez previously served as a petroleum engineer
with Energy Corporation of America
in the Appalachian Basin. She holds a
B.S. in petroleum engineering from Colorado School of Mines.
ANDREW SCHMIDT is a senior com-

pletions engineer at WPX Energy, designing and optimizing completion
processes and methods for Bakken wells.
Before joining WPX Energy in 2010,
he served for seven years in completion
procedures at Schlumberger, including
as senior completions engineer, production stimulation engineer, product
development engineer, and a hydraulic
fracturing field engineer. Schmidt holds
a B.S. in chemistry from Bethel University and a Ph.D. in chemistry from
the University of Minnesota-Twin Cities.

contexts, and to make decisions about
which analytical results were more confident or plausible. Internal company expertise in multiple disciplines was necessary to work through data and interpretive differences to provide a quality
result with well understood strengths and
weaknesses.
In conclusion, the cross-discipline integrated analysis resulted in a modified
completion design that gave an as-predicted response in microseismic, tracer
and FPHM data, and outperformed the
multivariate prediction and the economic
goals.
r

ANGIE SOUTHCOTT is geology
team lead and senior geoscientist at
WPX Energy in the Williston Basin.
Before joining the company in 2011,
she was a senior geoscientist at Rosetta
Resources, a staff geophysicist at Oxy,
and a geophysicist at Resource Solutions.
Southcott holds a B.S. in geophysical
engineering from the Colorado School
of Mines.
LEE STEINKE is geology manager,
Williston Basin, for WPX Energy. Before
joining the company in 2011, she was
at Williams for six years, where she was
geology manager for the Powder River
Basin and a senior geoscientist in the
Piceance Basin. She began her career
at Texaco as a geoscientist. Steinke holds
a B.A. in geology and classics from the
University of North Carolina at Chapel
Hill, an M.S. in geology and geophysics
from Yale University, and an M.B.A.
from The Wharton School at the University of Pennsylvania.
HAROLD "HAL" HARPER has 34
years of experience as a geophysicist
and geoscientist working in basins and
settings around the world, including
the Norwegian Sea, North Africa, Gulf
Coast, Permian Basin, Mid-Continent,
and all Rocky Mountain basins. He has
worked at Professional Geophysics Inc.,
Conoco, Tom Brown Inc., Encana, Pioneer Natural Resources, Williams and
WPX Energy. Harper holds a B.S. in
geophysical engineering from the Colorado School of Mines

JANUARY 2015 99



American Oil and Gas Reporter - January 2015

Table of Contents for the Digital Edition of American Oil and Gas Reporter - January 2015

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