注下采上工艺技术
Oil Field Equipment(2008)
Abstract
为满足单井同时注采的需要,进行了注下采上工艺技术的研究。该技术可根据注下采上工艺及单井井况的需要,将管柱设计为机械封隔式双卡管柱及液压封隔式双卡管柱;确立了相应的施工工艺,并研制出转换器、插入密封总成、压差式油套连通阀、过桥泵等配套工具。现场应用表明,注下采上技术能实现一口井同时注采生产,提高了油井利用率。
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Key words
isolated interval,across bridge pump,transformer,pressure-differential communicating valve,injection-production strategy,plug in seal assemble
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