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  • 专利标题:   Use of high aza-graphene nanosheet for water-based drilling fluid, where water-based drilling fluid is added with high aza-graphene nanometre sheet, high aza-graphene nano sheet is prepared by premixing raw material inorganic salt, carbon-containing compound and nitrogen-containing organic compound.
  • 专利号:   CN115627158-A
  • 发明人:   GONG G, ZENG C, CHEN H, LI L, ZHANG X, ZHANG Z, WANG F, LUO C, ZHOU C
  • 专利权人:   DRILLING ENG INST SINOPEC SOUTHWEST PETR, SINOPEC OILFIELD SERVICE CORP
  • 国际专利分类:   C01B032/184, C09K008/03, C09K008/12, C09K008/16, C09K008/24, C09K008/36
  • 专利详细信息:   CN115627158-A 20 Jan 2023 C09K-008/03 202317 Chinese
  • 申请详细信息:   CN115627158-A CN11254949 13 Oct 2022
  • 优先权号:   CN10296033

▎ 摘　　要

NOVELTY - Use of high aza-graphene nanosheet is claimed for water-based drilling fluid, where water-based drilling fluid is added with high aza-graphene nanometre sheet, the nitrogen atom content of the whole material surface of the high aza-graphene nanometre sheet is 3.5 to 8 wt.%. USE - High aza-graphene nanosheet for water-based drilling fluid. ADVANTAGE - The sheet shows that the content of the graphite alkene nitrogen atom is positively correlated with the co-lubricating plugging effect of the added drilling fluid.