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Methods for placing a barrier material in a wellbore to permanently leave tubing in casing for permanent wellbore abandonment
Methods for placing a barrier material in a wellbore to permanently leave tubing in casing for permanent wellbore abandonment
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机译:将阻隔材料放置在井眼中以将管道永久留在套管中以永久弃井的方法
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摘要
Methods for sealing a wellbore include placing a barrier material within an annular space between a wellbore tubing and a wellbore casing, wherein a seal is placed across or below openings in the wellbore tubing at at least one location above a lowermost tubing to annulus opening. In some embodiments, an intervention tubing may be used to insert the barrier material into successively exposed ones of the annulus openings, whereby no seal sleeve is needed.
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