Advantages of Wireless Technologies for Gas Well Automation
Transcript of Advantages of Wireless Technologies for Gas Well Automation
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Gas Well De-Liquification WorkshopDenver, Colorado
February 27 - March 1, 2006
Advantages of Wireless Technologies for Gas Well AutomationLarry Compton, PresidentCo-author - Cham Ocondi, Manager of TechnologyVECO Gas Technology, Inc.
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Feb. 27 - Mar. 1, 2006 2006 Gas Well De-Liquification Workshop Denver, Colorado
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Outline
• Wireless technologies
• Wireless virtual-RTU system
• Advantages
• Added complexities and costs
• Complete production automation system
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Feb. 27 - Mar. 1, 2006 2006 Gas Well De-Liquification Workshop Denver, Colorado
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Wireless Technologies
• Spread-spectrum radios
• Remote I/O devices
• Virtual RTU hardware
• Wireless field network
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Feb. 27 - Mar. 1, 2006 2006 Gas Well De-Liquification Workshop Denver, Colorado
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Wireless Technologies
Spread-spectrum radios(RTU to remote I/O units) (RTU to multiple host computers)
Type #1 Type #2 Type #3
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Feb. 27 - Mar. 1, 2006 2006 Gas Well De-Liquification Workshop Denver, Colorado
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Wireless Technologies
Remote I/O devices• Digital / analog inputs
• Pulse rate inputs
• Digital outputs
• RS-485 connector
• RS-232 connector
• RS-485 connector
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Feb. 27 - Mar. 1, 2006 2006 Gas Well De-Liquification Workshop Denver, Colorado
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Wireless Technologies
Conventional RTU Typical I/O Capabilities• Digital / analog inputs
• Pulse rate / pulse counter inputs
• Digital to analog outputs
• Digital outputs
• RS-232 connectors
• RS-485 connectors
• USB connectors
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Feb. 27 - Mar. 1, 2006 2006 Gas Well De-Liquification Workshop Denver, Colorado
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Wireless Technologies
Virtual RTU Expanded I/O Capabilities• Typical I/O capabilities of a conventional RTU plus additional:
• Digital / analog inputs
• Pulse rate inputs
• Digital outputs
• RS-232 connectors
• RS-485 connectors
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Feb. 27 - Mar. 1, 2006 2006 Gas Well De-Liquification Workshop Denver, Colorado
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Wireless Technologies
• Wireless field network– Virtual field office
– Monitor & control
– Every well in multiple fields
– Simultaneously from any host computer
• Field office
• Corporate headquarters
• Truck
• Hotel room
• Home
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Feb. 27 - Mar. 1, 2006 2006 Gas Well De-Liquification Workshop Denver, Colorado
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Wireless Technologies
Internet
FieldMaster Host Remote Host
FieldLAN Server
Field Modem
Well#1
Well#2
Remote Host
Comm. Tower
Truck Host
Well#3
Wireless Field Network
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Feb. 27 - Mar. 1, 2006 2006 Gas Well De-Liquification Workshop Denver, Colorado
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Wireless Virtual-RTU System
Master Host
Remote I/O
Truck Host
Wireless Technologies
RTU
Remote I/O
Remote I/O
Short-Range RadiosLong-Range Radios
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Advantages
Cost reductions usually offset the additional cost of the remote I/O devices
Installation
Add < $1,600 / WellRemote I/O Devices
75%RTU communications, solar power equipment and installation materials
75%RTU hardware
NoneInstrument end devices
Per Well Savings
(4 Wells Per RTU)
• Minimize Hardware Investment
Item
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Advantages
• Reduce installation costs and improve safety by:– Minimizing or eliminating excavation and trenching around well sites
– Eliminating long-distance trenching and long U/G cable runs
– Eliminating installation of RTUs at wells with remote I/O units
• Enhance system reliability by:– Eliminating induced transient currents in long U/G cables
• Increase operations productivity by:– Providing field personnel with multiple access to the wireless network
including from a laptop in a truck
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Added Complexities & Costs
Legacy Hardware
Open Standards
&
Custom Drivers
Business Systems
Enterprise Software
Interface w/ Production
Organization Systems
Software
Merge Wireless Technologies Wireless Field
NetworkSpread-Spectrum
Radios
Remote I/O Devices
Virtual-RTUs
Software
Custody Transfer
EFM
Well Controller / Optimizer
Multiple Host Software
Communications System Integrate
Multiple Functions
Software
Connect to System
Components
Instrument
End Devices
Solar Power
Communications Equipment
Electrical & Mechanical
Systems
Software
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Complete Production Automation System
Office
Field
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Summary
• Wireless technologies
• Wireless virtual-RTU system
• Advantages
• Added complexities and costs
• Complete production automation system
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Gas Well De-Liquification WorkshopDenver, Colorado
February 27 - March 1, 2006
Thank You!