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an peng zhu cai jian jing gu jing ji shu
Author(s): 
Pages: 104-106
Year: Issue:  2
Journal: PETROLEUM GEOLOGY AND ENGINEERING

Keyword:  安棚碱矿长封固碱井两凝漂珠低密度水泥浆固井技术;
Abstract: 安棚碱矿溶洞、裂缝发育,由于近几年大规模注水采卤开发,造成施工井地层易涌、易漏;特殊要求的采卤工艺,使固井封固段长,施工压力高,施工难度大;天然碱层溶解易污染水泥浆,再加上安棚地区高速3.6℃/100m地温梯度,使水泥浆体系性能要求更苛刺.针对上述难题,开展了注水泥前王液和泵入排量的合理设计、两凝低密度抗碱污粢能力强水泥浆体系的优选研究,在工艺简单、施工方便的前提下有效地解决了安棚注采碱井固井技术难题,取得了显著的施工效果.
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