American Oil and Gas Reporter - February 2023 - 63

greater accuracy under suitable wellbore
conditions. When fluid clarity allows them
to collect meaningful data, they should be
considered the primary data source.
In fluids with low optical clarity, ultrasound
sensors can provide measurements
that capture general trends in proppant
placement. They are less suitable when
more accurate dimensional analysis is required
(for example, to determine cluster-to-cluster
variability), but their ability
to measure area can be improved when
TOBBEN TYMONS is a member of
the senior management team and the visual
analytics director for EV, which
provides downhole analytics services.
Having spent 25 years in the upstream
sector, he has experience managing and
leading product development, data analytics
and sales and marketing. Tymons
received a B.S. in physics and computer
science from the University of Reading
in 2000 before starting his career as a
research and development engineer for
specialized downhole equipment.
GLYN ROBERTS is a global technical
adviser with EV who specializes in vivideo-based
measurements are available
to provide a reference.
Ultrasound sensors also can provide
extremely detailed inner diameter and wall
thickness measurements that can help
quantify unwanted erosion, such as plug
bypass damage, and define areas of casing
deformation. Together with cameras, they
can deliver comprehensive fracture treatment
diagnostics that not only confirm
proppant placement and distribution but
also evaluate plug performance.
❒
sual analytics services that combine
downhole video diagnostic information
with computational analysis. He has
more than 30 years of experience in
reservoir and wellbore evaluation, and
has held roles for leading service
providers related to acquiring data, managing
operations and geoscience work,
and developing log analysis software.
Today, he concentrates on developing
video diagnostics that help optimize unconventional
reservoirs.
DUNCAN TROUP is Archer's global
product champion focusing on developing
and introducing new logging technologies.
He began his career in 1988
as a wireline logging field engineer,
working mostly international assignments
in Southeast Asia and Africa.
Following time in new product development,
sales and support, Troup returned
to managing wireline field
operations in the Middle East region
and joined Archer in 2011. After holding
region manager and global technical
manager positions, he moved into
the product champion role, where he
helped develop proprietary passive
acoustic and phased-array imaging
tools and the ComTrac carbon composite
rod conveyance system.
Editor's Note: This article was derived
from SPE-212322-MS, a paper
originally presented at the SPE Hydraulic
Fracturing Technology Conference
on Feb. 1. The paper illustrates a
few of ultrasonic sensors' applications,
explains the mechanisms behind optical
and ultrasonic sensors' strengths and
limitations, and provides more detailed
guidance on when they should be deployed
together.
FEBRUARY 2023 63
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