01 Iav npuas ua tus neeg saib xyuas kom txo qis hauv cov roj Base Drilling Fluid rau MarginalLow-Permeabil ...
Hollow iav spheres, tseem hu ua iav npuas, raws li ib tug ceev txo tus neeg sawv cev nyob rau hauv ib tug drilling kua. Nyob rau hauv daim ntawv thov teb, ib tug proprietary roj-hauv-dej emulsion kua uas muaj hollow iav npuas tau siv thaum lub sij hawm lub drilling ntawm ib tug produci ...