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Application of Aluminium and Amine Drilling Fluid with Double Formation Sealing in Second Long Barefoot Interval
Author(s): 
Pages: 1-3,8
Year: Issue:  2
Journal: Journal of Chengde Petroleum College

Keyword:  成3井长裸眼煤层井壁稳定铝胺;
Abstract: 成3井是为探索侏罗系油藏而在准噶尔盆地中央坳陷部署的一口预探井,完钻井深4 821 m.二开裸眼段长3 200 m,井壁稳定难度大;西山窑组至八道湾组煤层发育,井壁失稳严重.通过使用铝胺抑制防塌钻井液,施工中采用合理密度支撑-多元协同抑制-双重封堵防塌措施,辅助相应的维护处理工艺,解决了长裸眼段和煤层段的井壁失稳难题,而且机械钻速得到显著提高.全井机械钻速7.68 m/h,创造该区块钻速新纪录.
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