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超级胍胶压裂液技术在大庆油田的研究与应用

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摘要 针对海拉尔盆地低渗透储层物性条件复杂、对压裂液敏感性强,以及压裂液对油层伤害大的问题,开发了一种新型超级胍胶(SG)压裂液。经压裂液配方评价结果表明,超级胍胶配方增稠剂使用浓度比羟丙基胍胶降低了50%,压裂液的残渣含量降低了45%,具有优良的防膨、返排、破乳及降滤失性能。该技术共应用371口井875层,施工成功率为96. 7%。其中海拉尔油田共应用155口井339层,施工成功率为97.3%,压裂初期平均单井日产液10.30t;大庆外围低渗透油田应用216口井536层,施工成功率为95.0%,压裂初期平均单井日产油7. 30t,取得了较好的增产效果。
出处 《采油工程》 2012年第2期8-12,共5页 Oil Production Engineering
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