Pre-coated film propping agent, preparation method of pre-coated film propping agent and sand prevention method adopting pre-coated film propping agent

Pre-coated film propping agent, preparation method of pre-coated film propping agent and sand prevention method adopting pre-coated film propping agent

  • CN 102,660,245 B
  • Filed: 03/31/2012
  • Issued: 05/14/2014
  • Est. Priority Date: 03/31/2012
  • Status: Active Grant
First Claim
Patent Images

1. a sand-proof method for oil-gas well, wherein pre-overlay film propping agent is mixed with epoxy resin and underwater curing agent, inject Oil/gas Well by sand-carrying agent and carry out sand control, wherein said epoxy resin is liquid bisphenol A epoxy resin and/or liquid bisphenol f type epoxy resin;

  • Described pre-overlay film propping agent is made up of propping agent, pre-film covered resin, pre-overlay film solidifying agent, coupling agent and lubricant;

    Described pre-film covered resin is bisphenol A type epoxy resin, bisphenol f type epoxy resin and/or novolac epoxy;

    Described pre-overlay film solidifying agent is alicyclic polyamine, modified alicyclic polyamine, aromatic polyamine and/or modified aromatic polyamine;

    Described coupling agent is organo silane coupling agent;

    The content of wherein said pre-film covered resin is 0.3~

    1.5 quality % of described pre-overlay film propping agent quality, the content of described pre-overlay film solidifying agent is 10~

    40 quality % of described pre-film covered resin quality, the content of described coupling agent is 0.1~

    2 quality % of pre-film covered resin quality, and the content of described lubricant is 1~

    10 quality % of pre-film covered resin quality.

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