Research Article
The Preparation and Performances of Self-Dispersed Nanomicron Emulsified Wax Solid Lubricant Ewax for Drilling Fluids
Table 3
Impact of Ewax on drilling fluid rheology.
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Remarks: afresh water based mud is 6.0 wt% sodium-bentonite based mud. bDrilling fluid is 4.0 wt% sodium-bentonite based mud + 0.2 wt% HV-CMC + 0.3 wt% NPAN + 0.2 wt% SiM + 0.1 wt% KPAM. cHV-CMC is technical-grade high-viscosity carboxymethylcellulose as viscositier; NPAN is hydrolysed ammonium polyacrylonitrile as filter loss control agent; SiM is silicone grafted starch film former as inhibitor; KPAM is potassium copolymer of acrylamide and acrylic acid as flocculant. |