Hydrocarbon Processing - April 2022 - 85

Process Controls, Instrumentation and Automation
mation is illustrated with the following
four use cases.
Use Case 1: Quantifying
control improveautomatic
ments.
Comparing process performance
metrics before and
after automatic control modifications
is a common analytics task
for control engineers. In this use
case (FIG. 2), additional profits
can be attained if the target production
rate can be reached more
quickly following startup, with a
new control strategy implemented
to reach this goal.
Beginning with only the production
Advanced industrial data analytics has a prominent
role to play in process control and automation.
The success of process control and automation
efforts depends on the skilled design and
automation of process behavior understanding.
rate signal and the rate target, the control
engineer searches the data to identify
when the production is within a narrow
range of target, and then uses additional
contextualization functionality to join
the beginning of startup to when the rate
target is reached, creating " Startup Time
to Rate Target " capsule periods.
The startup related control performance
is then trended over each of the
most recent 12 runs in the analytics application's
chain view, which contextually
excludes all run data not of interest.
The " Time to Full Rate " for the old and
new control strategies is then quantified
and compared, and results show the time
has decreased from 150 min-200 min to
approximately 100 min. Utilizing analytics
and process knowledge, the control
engineer has rapidly quantified the before/after
performance for a new control
strategy implementation.
Use Case 2: Leveraging asset features
for control valve health monitoring.
Advanced analytics
solutions
take advantage of asset-organized data
structures to efficiently scale calculations
across all assets. Features within the analytics
solution apply the calculations-
created only once by the user-to all
similar assets (pumps, control valves,
etc.). Results can be viewed in high-level
visualizations like treemaps, with interactive
drill-down functionality to access
the individual asset's underlying process
data. Results can also be changed on the
fly to view how a particular asset is currently
operating.
This functionality provides the desired
wide range of analytics scaling because
results can be developed from the
micro (individual assets) to the macro
level (entire process sections). The abilFIG.
4. Reactor feed controller setpoint adjusted by operators to loosely control process inventory
(A). Histogram of reactor feed controller setpoint change magnitude by crew number (B).
Hydrocarbon Processing | APRIL 2022 85
tional roles, as well as the involvement of
management. Management reviews can
establish priority and generate workflow
actions for engineers and maintenance
personnel to address issues.
In this example, a control valve asset
tree contains analogous signals (e.g.,
valve output) related to each control
valve. The control engineer uses analytics
tools to create an overall valve health
score based on calculated metrics, such
as percent traveled, rate of travel, cycling
ers to poor control valve health. Clicking
on the asset in the treemap shows the related
data trends (FIG. 3B).
Use Case 3: Monitoring operator
interactions with the regulatory control
layer. While occasional operator
intervention is necessary, in some cases,
operators do not trust the control strategy,
and they unnecessarily place controllers
in manual mode; or, they simply
think they can improve operations by being
the feedback controller for their shift,
ity to view results at various levels promotes
collaboration among organizaand
other parameters. Red assets in the
generated treemap (FIG. 3A) alert the us

Hydrocarbon Processing - April 2022

Table of Contents for the Digital Edition of Hydrocarbon Processing - April 2022

Contents
Hydrocarbon Processing - April 2022 - Cover1
Hydrocarbon Processing - April 2022 - Cover2
Hydrocarbon Processing - April 2022 - Contents
Hydrocarbon Processing - April 2022 - 4
Hydrocarbon Processing - April 2022 - 5
Hydrocarbon Processing - April 2022 - 6
Hydrocarbon Processing - April 2022 - 7
Hydrocarbon Processing - April 2022 - 8
Hydrocarbon Processing - April 2022 - 9
Hydrocarbon Processing - April 2022 - 10
Hydrocarbon Processing - April 2022 - 11
Hydrocarbon Processing - April 2022 - 12
Hydrocarbon Processing - April 2022 - 13
Hydrocarbon Processing - April 2022 - 14
Hydrocarbon Processing - April 2022 - 15
Hydrocarbon Processing - April 2022 - 16
Hydrocarbon Processing - April 2022 - 17
Hydrocarbon Processing - April 2022 - 18
Hydrocarbon Processing - April 2022 - 19
Hydrocarbon Processing - April 2022 - 20
Hydrocarbon Processing - April 2022 - 21
Hydrocarbon Processing - April 2022 - 22
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Hydrocarbon Processing - April 2022 - 25
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Hydrocarbon Processing - April 2022 - 27
Hydrocarbon Processing - April 2022 - 28
Hydrocarbon Processing - April 2022 - 29
Hydrocarbon Processing - April 2022 - 30
Hydrocarbon Processing - April 2022 - 31
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Hydrocarbon Processing - April 2022 - 34
Hydrocarbon Processing - April 2022 - 35
Hydrocarbon Processing - April 2022 - 36
Hydrocarbon Processing - April 2022 - 37
Hydrocarbon Processing - April 2022 - 38
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Hydrocarbon Processing - April 2022 - 40
Hydrocarbon Processing - April 2022 - 41
Hydrocarbon Processing - April 2022 - 42
Hydrocarbon Processing - April 2022 - 43
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Hydrocarbon Processing - April 2022 - 63
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Hydrocarbon Processing - April 2022 - 66
Hydrocarbon Processing - April 2022 - 67
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Hydrocarbon Processing - April 2022 - 86
Hydrocarbon Processing - April 2022 - 87
Hydrocarbon Processing - April 2022 - 88
Hydrocarbon Processing - April 2022 - 88A
Hydrocarbon Processing - April 2022 - 88B
Hydrocarbon Processing - April 2022 - 89
Hydrocarbon Processing - April 2022 - 90
Hydrocarbon Processing - April 2022 - Cover3
Hydrocarbon Processing - April 2022 - Cover4
Hydrocarbon Processing - April 2022 - GP-1
Hydrocarbon Processing - April 2022 - GP-2
Hydrocarbon Processing - April 2022 - GP-3
Hydrocarbon Processing - April 2022 - GP-4
Hydrocarbon Processing - April 2022 - GP-5
Hydrocarbon Processing - April 2022 - GP-6
Hydrocarbon Processing - April 2022 - GP-7
Hydrocarbon Processing - April 2022 - GP-8
Hydrocarbon Processing - April 2022 - GP-9
Hydrocarbon Processing - April 2022 - GP-10
Hydrocarbon Processing - April 2022 - GP-11
Hydrocarbon Processing - April 2022 - GP-12
Hydrocarbon Processing - April 2022 - GP-13
Hydrocarbon Processing - April 2022 - GP-14
Hydrocarbon Processing - April 2022 - GP-15
Hydrocarbon Processing - April 2022 - GP-16
Hydrocarbon Processing - April 2022 - GP-17
Hydrocarbon Processing - April 2022 - GP-18
Hydrocarbon Processing - April 2022 - GP-19
Hydrocarbon Processing - April 2022 - GP-20
Hydrocarbon Processing - April 2022 - GP-21
Hydrocarbon Processing - April 2022 - GP-22
Hydrocarbon Processing - April 2022 - GP-23
Hydrocarbon Processing - April 2022 - GP-24
Hydrocarbon Processing - April 2022 - GP-25
Hydrocarbon Processing - April 2022 - GP-26
Hydrocarbon Processing - April 2022 - GP-27
Hydrocarbon Processing - April 2022 - GP-28
Hydrocarbon Processing - April 2022 - GP-29
Hydrocarbon Processing - April 2022 - GP-30
Hydrocarbon Processing - April 2022 - GP-31
Hydrocarbon Processing - April 2022 - GP-32
Hydrocarbon Processing - April 2022 - GP-33
Hydrocarbon Processing - April 2022 - GP-34
Hydrocarbon Processing - April 2022 - GP-35
Hydrocarbon Processing - April 2022 - GP-36
Hydrocarbon Processing - April 2022 - GP-37
Hydrocarbon Processing - April 2022 - GP-38
Hydrocarbon Processing - April 2022 - GP-39
Hydrocarbon Processing - April 2022 - GP-40
Hydrocarbon Processing - April 2022 - GP-41
Hydrocarbon Processing - April 2022 - GP-42
Hydrocarbon Processing - April 2022 - GP-43
Hydrocarbon Processing - April 2022 - GP-44
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