Abstract

Surmont well pair 102-06 started SAGD operation in April 2009 with flow distribution control built into the horizontal liners for both the injection well and the production well. After preheat steam circulation, this liner system has allowed operation without a toe tubing string in either completion and has delivered superior steam chamber development and overall performance. The design also allowed reducing the liner and casing size for the injection well. Future SAGD well design may benefit by further reduction in liner and casing sizes for both the injector and producer which could allow longer completions by reducing liner drag and increasing directional drilling flexibility. Ultimately these SAGD well design changes could increase the amount of reservoir developed per well and per well pad using longer wells and more wells per pad while achieving superior SAGD performance.

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