During 1994 - 1995, Wascana Energy Inc. implemented a supervisory cont
rol and data acquisition system (SCADA) covering its entire southeast
Saskatchewan operating area. This SCADA system was implemented to impr
ove operating efficiencies by reducing operating costs and increasing
production volumes. The system provided for remote monitoring and cont
rol of certain production facilities and wells. Wascana contracted an
automation system integrator to assist in customizing the graphical us
er interface and configuring the PC based computer system to communica
te with various end devices in several fields. The master polling stat
ion and backup PC are located in Wascana's Estevan office. Data commun
ications between the Estevan office, the field and district offices is
accomplished with a UHF radio system and existing phone lines. Select
ed real time data is stored on an SQL database server, located on Wasc
ana's local and wide area networks (LAN, WAN) to support corporate wid
e data sharing. Field automation includes wellhead managers (WHM) on a
ll horizontal producers for pump off control and real time dynamometer
analysis, remote tank level monitoring, electronic flow measurement,
water injection facility control and flowline leak detection.