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在复杂层的钻进中,运用含有4～5％粘土的低固相PHP-CMC-KHM浆液和适应本地区的阴离子型皂化油,有效地解决了钻孔的冲洗、润滑和护壁问题。
In the drilling of complex layers, the flushing, lubrication and wall protection of drilling holes are effectively solved by using low solid PHP-CMC-KHM slurry containing 4-5% clay and anionic saponification oil in this area.