聚醚胺基烷基糖苷对钾铵基钻井液性能影响研究
Advances in Fine Petrochemicals(2017)
Abstract
室内试验研究抑制剂聚醚胺基烷基糖苷(NAPG)的用量对钾铵基钻井液流变性能、膨润土含量及抑制防塌性能的影响.结果表明:NAPG与钾铵基钻井液配伍性良好,钾铵基钻井液加入NAPG后,表观黏度和切力略有降低,其他流变性能保持稳定,同时降低了钻井液膨润土含量;NAPG加量为1.0%时,钾铵基钻井液岩屑一次滚动回收率由89.7%提高至96.1%;NAPG加量为5.0%时,钾铵基钻井液页岩膨胀高度由3.39 mm降至1.81 mm,表明NAPG抑制剂可进一步提高钾铵基钻井液的抑制防塌性能.
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