为了改善强黏性地层中井眼的稳定性,提高机械钻速,开发并研制了可以替代IEM的新型水基泥浆。这种新型泥浆体系具有和地层配伍性良好、容易配置、使用方便、主体组分生物降解、不污染环境等特点。通过在全球的现场应用表明,该泥浆体系在钻遇强黏性地层时,能够保持井眼稳定,提高机械钻速,节约钻井成本。 In order to improve the stability of wellbore in strong cohesive formation and increase ROP, a new type of water-based mud that can replace IEM was developed and developed. This new mud system has the characteristics of good compatibility with formation, easy configuration, easy to use, biodegradation of main components and no environmental pollution. Through on-site field applications around the world, the mud system has been shown to maintain wellbore stability, improve ROP and save drilling costs when drilling in highly viscous formations.