American Oil and Gas Reporter - December 2022 - 79

SpecialReport: Completion Technology
Upon flowback, the shallow interval was
responsible for the highest water and oil
returns. Figure 6 shows the returns from
the three-interval treatment. Since all of
the intervals were subjected to the same
acid treatment, the PGT diagnostics were
able to determine which interval contributed
the highest returns of water and
oil tracer. This would have not been possible
by batch tracing the acid on surface.
PGT provides a way to inject tracers
down to the cluster-level of resolution. It
is a highly versatile technology that can
CHRIS
SQUIRES
Chris Squires is the regional engineering adviser for ProTechnics, a division of Core Laboratories, in
Pittsburgh. He works with operators to interpret the results of tracer diagnostic projects used to evaluate
completions designs and hydraulic and hydrocarbon communication between wells. Squires started working
in the energy industry in 2007 as an engineer for the cementing, fracturing and acidizing business units for
Halliburton Energy Services in the Appalachian Basin. Squires then worked as the senior completions engineer
for Consol Energy (CNX Resources) during the development of its early Marcellus and Utica wells.
He holds a degree in mechanical engineering from Pennsylvania State University.
be used with perforation guns containing
numerous combinations of number of
holes, entry-hole diameters, shaped charges
and phasing. It is especially well suited
for scenarios such as refracturing or highintensity
perforating, where multiple open
clusters of perforations are subjected to
the same treatment fluids. Without PGT,
a determination of which clusters are returning
the most oil or water and which
clusters may not be returning at all would
require permanent monitoring hardware
or an intervention for production logging.
In addition, PGT also can be used to
obtain flow assurance, well-to-well communication
and even FDI diagnostics.
The tracers inside the PGT system are
shelf-stable and can be stored and used
when ready, and do not require a dedicated
on-site representative.
❒
Editor's Note: For additional information
on PGT technology or field applications,
see SPE 210134, a technical
paper presented at the 2022 SPE Annual
Technical Conference & Exhibition.
BRAD
LEONARD
Brad Leonard is the regional sales manager for ProTechnics, a division of Core Laboratories. He began
his career in 2007 as an account technician for BJ Services, advancing to account manager for the BJ Services'
chemical division in the Barnett Shale. Leonard joined ProTechnics in 2010 to manage all sales in the
Dallas/Fort Worth area. During his 12-year career with ProTechnics, he has assisted numerous operators
to better understand their completions by providing necessary solutions to increase their return on investment.
Leonard is a graduate of Texas A&M University.
SHAUN
GEERTS
Shaun Geerts is the energetics engineering manager at Owen Oil Tools, a division of Core Laboratories.
His 11 years of service at the company include perforation design, testing design and management roles.
He holds a B.S. in mechanical engineering and M.S. degrees in explosives engineering and engineering
management from the New Mexico Institute of Mining and Technology.
MATTHEW
CLAY
Matthew Clay is the director of engineering at Owen Oil Tools. He began his career in 1996 as a ballistics
technician for Schlumberger-Rosharon, and then joined Titan Energetics in 2001 as a shaped charge
designer until 2006. His 16 years of service at Owen Oil Tools include engineering management roles in
energetics engineering and ballistics engineering. He is a graduate of Texas State Technical College and
LeTourneau University.
DECEMBER 2022 79

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