Shiells Canyon CO2 Plant

Problems

• New production was causing sales gas quality to decrease because of higher CO2 content.

Solutions

• A new Amine Plant was constructed (by others) to strip the CO2 out of the sales gas stream.
• Installed a PLC to control the new Amine Plant.
• A new HMI was installed (by others) to allow the operators to interact with the PLC and to control process conditions.
• A new satellite-based SCADA system was installed (by others) to allow operators to remotely access remote flow meters.
• Added a phone dialer to the SCADA system to alert operators to any alarms or abnormal process conditions.

Results

• Increased product quality.
• More productive employees.

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Details

Client: Vintage Petroleum, Inc.
Location: Piru, CA

PLCs:

• (1) Allen Bradley SLC 5/05
• 160 discrete, 40 analog

HMIs:

• (2) SCADA nodes - CygNet (provided by others)

Remote Alarming:

• United Security Products AD-2000

Data Historian:

• none

Other Components Integrated through SCADA:

• ABB TotalFlow - 6713 flow meter
• WindowsXP service pack 2

Networking, Protocols, and Drivers:

• Modbus RTU
• TCP/IP
• EIA-568A
• RS-232
• RS-485
• ABTCP (AB Ethernet driver)