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介绍了室内评价钻井液及处理剂抑制性的四种方法及实验。实验结果表明,页岩滚动回收率法能直观地反映出钻井液及处理剂抑制性强弱,而且与现场反馈的资料相吻合;比表面法测无机盐抑制性时可比性较好,但测大分子阴离子型处理剂时误差大;体积膨胀法测无机盐和非极性处理剂抑制性时可比性较好;高温高压膨胀法能模拟温度、压力,所测数据可以与页岩滚动回收率法相对应,可比性强。
Four methods and experiments for evaluating the inhibition of drilling fluid and treating agent in the room are introduced. The experimental results show that the shale rolling recovery method can intuitively reflect the inhibition strength of drilling fluid and treatment agent, and is in good agreement with the field feedback data. Compared with the surface method, the comparability of inorganic salt inhibition is better. However, Macromolecular anion treatment agent error; volume expansion method to measure inorganic salt and non-polar treatment agent comparability is better; high temperature and pressure expansion method can simulate temperature and pressure, the measured data can be compared with the shale rolling recovery Law corresponding, comparable.