Research Progress of High Temperature Resistant Loss Circulation Material while Drilling
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Beijing Institute of Exploration Engineering,Beijing Institute of Exploration Engineering,bBeijing Institute of Exploration Engineering,bBeijing Institute of Exploration Engineering

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P634.6

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    Abstract:

    In order to prevent lost circulation, increase the borehole wall stability and formation pressure, plugging material while drilling is usually added while drilling in permeable leakage formation, broken formation and low pressure formation. Especially in high temperature deep well, high temperature geothermal well and high temperature hot dry rock drilling, high temperature resistant plugging material must be added to drilling fluid. In this paper, the new progresses of high temperature resistant plugging material while drilling are introduced, including loss circulation agent while drilling based on bridge loss circulation material, expansive polymer plugging agent and ultra-low permeability agent. The composition and plugging mechanism of different high temperature resistant plugging materials while drilling were analyzed and the research direction of high temperature resistant plugging material while drilling was pointed out.

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History
  • Received:July 18,2016
  • Revised:July 18,2016
  • Adopted:November 15,2016
  • Online: December 21,2016
  • Published: