Branched epoxy resin pressure-bearing plugging material and oil-based drilling fluid

The invention discloses an epoxy resin pressure-bearing plugging material and an oil-based drilling fluid, and belongs to the technical field of oil and gas field drilling. The structure of the pressure-bearing plugging material is a branched type, the synthetic raw materials of the material comprise a cycloenol substance, epoxy chloropropane, a cycloenamine substance, graphene oxide and a silane coupling agent, the molar ratio of the epoxy chloropropane to the cycloenamine substance is (1-2): (2-3), and the silane coupling agent is glycidyl trimethoxy silane. The compressive strength of the branched epoxy resin pressure-bearing material can reach 130-150 MPa, compared with traditional bisphenol A epoxy resin, the pressure-bearing capacity of the branched epoxy resin pressure-bearing material is improved by 2-3 times, and the branched epoxy resin pressure-bearing material can be applied to drilling fluid leaking stoppage for pressure-bearing leaking stoppage. 本发明公开了一种环氧树脂承压堵漏材料及油基钻井液，属于油气田钻井技术领域。该承压堵漏材料结构为支化型