证券之星消息,根据天眼查APP数据显示中国石化(600028)新获得一项发明专利授权,专利名为“木质素基堵剂原料组合物、木质素基调堵材料及其制备方法”,专利申请号为CN202210582919.0,授权日为2025年7月4日。专利摘要:本发明涉及石油开采技术领域,公开了木质素基堵剂原料组合物、木质素基调堵材料及其制备方法,所述木质素基堵剂原料组合物包含:纳米羟甲基化木质素、阴离子型丙烯酰胺类聚合物...
Source Link证券之星消息,根据天眼查APP数据显示中国石化(600028)新获得一项发明专利授权,专利名为“木质素基堵剂原料组合物、木质素基调堵材料及其制备方法”,专利申请号为CN202210582919.0,授权日为2025年7月4日。专利摘要:本发明涉及石油开采技术领域,公开了木质素基堵剂原料组合物、木质素基调堵材料及其制备方法,所述木质素基堵剂原料组合物包含:纳米羟甲基化木质素、阴离子型丙烯酰胺类聚合物...
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