一种复合堵漏剂及其应用
本发明提供了一种复合堵漏剂,包括如下质量份的组分:聚合物凝胶颗粒5~15份,可固结颗粒材料15~40份,惰性颗粒材料40~70份,纤维材料5~10份,片状材料5~10份;上述各组分的质量份数之和为100份。本申请还提供了一种水基钻井液条件下的堵漏剂。本申请提供的复合堵漏剂是一种易驻留微固结桥塞复合堵漏剂,其具有优异的漏层适应性和高效封堵性,能够有效解决长裸眼段多点漏失且含薄弱地层的水基钻井液堵漏问题。
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