April
2007
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© Copyright 2007
BDP Inc.
All Rights Reserved.
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Project News:
Compressor
Station Control and Safety System
BDP Inc. has
completed a front-end study to
develop a scope and design basis
for integration of three
compressor stations in
western Colorado. The three
stations provide inlet
compression for a central gas
treating facility. The
stations include individual unit
controllers supplied with each
compressor, and also include a
BDP Inc. supplied station control
panel that consists of separate
logic processors for process
control and safety interlocks.
The three compressor stations are
expected to be unmanned, and will
instead be operated remotely from
the central gas treating
facility. The compressor
station control systems will be
linked to the central treating
facility using a secure wireless
Ethernet network. The
chosen architecture provides both
engineer and operator functions
at the central treating facility
to support the common control
systems at all four sites, which
reduces overall staffing and
still improves response time for
process upsets and control system
troubleshooting.
Currently, the
control system configuration and
panel assembly is underway in
Houston and Denver. BDP
Inc. is working closely with the
control system vendor to design,
assemble, program, and test the
three station control panels
prior to shipment for
installation by others. The
process controller for each
station includes a combination of
Foundation Fieldbus instrument
and valve controllers, DeviceNet
motor controls, and traditional
hard-wired loops, to
control yard valves, gas
dehydration, and pressure
profiles at the station.
The process controller also
includes serial interfaces to
connect to the individual unit
controllers, to packaged burner
management systems, and to
station flow meters. A
separate logic processor is
included to segregate critical
shutdown functions from the
process controller. The
safety controller uses only
traditional hard-wired devices to
monitor safety interlocks and to
execute a safe shutdown of the
station. The station
control panel design includes
redundancy for
controllers, power supplies, and
Ethernet communications to
minimize potential control system
downtime. Each compressor
station also includes a single
engineer/operator workstation
that will be used for initial
station start up, and for local
operation and maintenance.
BDP Inc. is
consulting on several projects
with operating companies and
engineering contractors to best
utilize wireless systems,
Fieldbus instruments, and motor
automation networks to reduce
installation and commissioning
costs and to enable remote
operation centers. Contact BDP Inc. for more
information on similar control
system services and process
control improvements to enhance
your plant operations today.
Partial
List of Current Projects at BDP:
<> Configuration
and commissioning support for a
DCS upgrade including segregation
of safety logic into dedicated
safety controllers at a CO2
recovery plant in western
Colorado.
<> Engineering,
configuration, system assembly,
and commissioning support for
Hybrid control systems to
automate three compressor
stations in western Colorado.
<> Engineering,
configuration, and loop cutover
support to upgrade PLC/HMI
systems and field instruments for
surface facilities at an oil
field in west Texas.
<> Equipment
selection, I&E design, panel
assembly, and PLC/HMI programming
to automate high pressure gas
wells at a production field in
central Texas.
<> Engineering,
configuration, and commissioning
support for Station PLC systems
at several compressor stations in
Texas.
Partial
List of Systems included in
recent BDP projects:
<> Emerson Delta V control
system.
<> Emerson
Ovation control
system.
<> Universal Server by MTL
Open System Technologies LP.
<> Wonderware
Industrial
Application Server and InSQL Historian.
<> Wonderware
InTouch HMI with
Allen-Bradley
ControlLogix PLC.
<> Modicon
Premium PLC with
Maple Systems
Gold Series operator
interface. |
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