American Oil and Gas Reporter - March 2019 - 55

FIGURE 5
Parent Well Gas (Red), Condensate (Green) and Water (Blue)
Production Rates versus Time

KIMBERLY
AYERS

that one independent variable is more
significant than another, but from these
independent variables, the analysis revealed
that the most accurate in their predictive
tests were formation, azimuth, 100-mesh
proppant, total proppant, 30/50-proppant
and interwell spacing.
After phase two completion operations
were finished, the P3-M parent well was
returned to production while the five
child wells remained shut in for an additional two months. Initially, the P3M's water rate increased while the condensate rate decreased because of liquid
loading from the child well fracs (Figure
5). The gas rate showed an initial increase
compared with its average prior to completing the child wells, likely from pressure buildup within the wellbore. However, gas rates on the parent well decreased to below the previously established decline profile once the child
wells began producing.
The child wells have not been in proTABLE 2
Logistic Regression Testing Results
Variable Tested
Formation
Azimuth
Proppant - 100 Mesh
Proppant - Total
Proppant - 30/50 Mesh
Interwell Spacing
Stage Length
Fluid - Total Clean
Pressure - ISIP
Order of Frac
Fluid - Biocide
Fluid - Scale Inhibitor Vol
Water SG
Rate - Max
Rate - Avg

Logworth
33.0
26.5
23.4
18.8
17.7
17.6
14.8
12.6
12.3
10.3
5.7
4.3
2.5
2.5
2.4

duction long enough to examine the stimulation effectiveness with RTA or identify
the presence or effect of long-term fracture-to-fracture interactions. Based on
the RTA results and successfully executed
stimulations, we expect the Marcellus
child wells to perform as if the parent
well had not been produced and the two
Burket wells to exhibit the characteristics
of stand-alone wells without any evidence
of reservoir depletion.
❒
Editor's Note: Multiple software programs were utilized in the parent/child
well study, including the TIBCO Spotfire®
data analytics and visualization solution;
ARIES® petroleum economics and reserves
software from Landmark, a Halliburton
business line; JMP® statistical software;
the IHS Markit Harmony™ engineering
and reserves evaluation platform; and Barree & Associates' GOHFER® geomechanical fracture simulator. For more detailed
information on the analysis and results,
see SPE 191785, a technical paper presented at the 2018 Society of Petroleum
Engineers/American Association of Petroleum Geologists Eastern Regional Meeting, held October 7-11 in Pittsburgh.

Kimberly Ayers is founder and senior
reservoir engineering consultant at
Ayers Petroleum Consulting LLC in
Washington, Pa., where she applies
advanced evaluation techniques to both
conventional and unconventional Appalachian Basin properties. Ayers previously served in reservoir and petroleum engineering roles at LOLA Energy,
Inflection Energy, Tenaska Resources,
Northeast Natural Energy, and Larch
Oil & Gas. She holds a B.A. in chemistry
and a B.S. in mathematics from West
Virginia Wesleyan College, and an M.S.
in petroleum and natural gas engineering from West Virginia University.

HENRY
JACOT

Henry Jacot is president of HFrac
Consulting Services LLC in Canton,
Oh. With more than 30 years of experience in well completion and stimulation, he previously served as manager
of completion technology in Chevron's
North America business unit, vice
president of completion technology at
Atlas Energy and technical manager
at Meyer & Associates Inc. Jacot holds
a B.A. in business administration from
Texas Christian University.

Coming In April
The Texas Independent Producers & Royalty Owners Association held its 2019 annual
meeting, Feb. 26-27 at the
Sheraton Austin Hotel in
Austin, Tx. See the Official
Convention Coverage in the
April issue of The American
Oil & Gas Reporter.

ALIVIA
AYERS

Alivia Ayers is an engineering
technician at Ayers Petroleum Consulting LLC. She studied industrial
engineering and statistics at West
Virginia University.
MARCH 2019 55



American Oil and Gas Reporter - March 2019

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Contents
American Oil and Gas Reporter - March 2019 - Intro
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