作者: John H. Duerksen , Donald J. Anderson , Doug J. Mccallum , Mark Petrick
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摘要: Production of viscous hydrocarbons is initiated by first injecting an injection fluid down at least two tubing strings in a wellbore having multiple therein. Following initiation phase, flow the production string ceased, and formation to surface commenced heated tubing. The fluids controlled, entry uncondensed steam from into avoided maintaining liquid level which above perforations.