KRH1快钻剂的研究与应用

Research and Application of KRH-1 Fast Drilling Agent

为提高钻井速度,研制了快钻剂KRH-1。在室内对其润滑性能、抑制性能和抗温能力及对钻井液性能和机械钻速度的影响进行了评价,结果表明:快钻剂KRH-1具有良好润滑和抑制性能;能抗150℃的高温;与水基钻井液配伍性良好,对其性能影响不大;可明显提高钻井速度。现场应用也表明,快钻剂KRH-1具有良好的抑制性能和抗温能力,能大幅提高钻井液的润滑能力,加入快钻剂KRH-1后钻井速度明显提高。

The KRH-1 fast drilling agent was developed in order to improve drilling speed. The properties of this agent were tested in laboratory, including lubricity, inhibition, thermal-resistance, affects on drilling fluid and the rate of penetration. Test results indicate that the KRH-1 fast drilling agent performs better lubrieity and inhibition, thermal resistance of 150 ℃, suitable for water-based drilling fluid, etc. and thus allows higher drilling speed. In-situ applications also demonstrate that the fast drilling agent behaves good inhibition and reliability at high temperature, and can increase lubricity of drilling fluid. The rate of penetration is increased obviously by adding the KRH-1 agent.