OIL DRILLING
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    Oil drilling

    Oil drilling

In oil dillig industrv,high-viscosity HEC is mainly used as viscosifier in well-completing orfinishing fluid; while low-viscosity HEC is mainly used as water loss controller. HEC usedasthickener will impart good mobility and stability to various slurries necessary for driling.completion, cementing and fracturing operations. In drilling. HEC can increase the sand carryingcapability of the slurry and extend the service life of drll bits Inlow-solid content completionfluidand cementing fluid, the excellent water loss control performance of HEC canprevent largeamount of water in the slurry from entering into the oill reservoir and enhancing the stabilizingcapability of the wallofthe reservoir.

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