中国石油获得发明专利授权:“用于裂缝性地层恶性漏失的承压堵漏材料、钻井液及应用”

证券之星企业动态
Sep 13, 2025

证券之星消息,根据天眼查APP数据显示中国石油(601857)新获得一项发明专利授权,专利名为“用于裂缝性地层恶性漏失的承压堵漏材料、钻井液及应用”,专利申请号为CN202310492626.8,授权日为2025年9月12日。专利摘要:本发明特别涉及一种用于裂缝性地层恶性漏失的承压堵漏材料、钻井液及应用。所述堵漏材料包括:堵漏剂20?25重量份、充填胶结剂2?6重量份、活性剂1?2重量份、分散剂1...

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