• 专利标题:   Temperature-resistant and oil-resistant composite graphite plugging agent for oil-based drilling fluid, comprises graphene oxide, modified graphene oxide, and polymer/graphene oxide with polyester, polyamide and/or polymethyl silicone resin.
  • 专利号:   CN116042196-A
  • 发明人:   LI Q
  • 专利权人:   SICHUAN KANGRONG PETROCHEM TECHNOLOGY CO
  • 国际专利分类:   C09K008/03, C09K008/36, C09K008/42, C09K008/467, C09K008/48, C09K008/487
  • 专利详细信息:   CN116042196-A 02 May 2023 C09K-008/42 202347 Chinese
  • 申请详细信息:   CN116042196-A CN11318765 26 Oct 2022
  • 优先权号:   CN11318765

▎ 摘  要

NOVELTY - A temperature-resistant and oil-resistant composite graphite plugging agent comprises graphene oxide, modified graphene oxide and polymer/graphene oxide. The modified graphene oxide is graphene oxide modified by at least one of carboxyl, amide, sulfonic acid, benzenesulfonic acid, hydroxyl and silicon-oxygen bonds. The polymer in the polymer/graphene oxide is one or more of polyester, polyamide and polymethyl silicone resin. USE - Temperature-resistant and oil-resistant composite graphite plugging agent used in oil-based drilling fluid (claimed). ADVANTAGE - The plugging agent has excellent high temperature resistance, stable pressure bearing performance, excellent plugging performance for microcracks and excellent compatibility with oil-based drilling fluid, and effectively reduces the fluid loss of drilling fluid. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for use of temperature-resistant and oil-resistant composite graphite plugging agent in oil-based drilling fluid