Chrome Free Lignosulfonate was introduced to the drilling industry long time ago used as water-based mud reagent in a wide variety of drilling environments and over a broad temperature range.Has good thinning performance and filtration control capacity the mud performance of fresh water is better than salt water mud.With anti-high temperature 150℃,it can cooperate with other admixture agent.
|Material insoluble to water||2.5%max|
|pH(2% water solution)||2.8~3.8|
|Item||Fresh water drilling mud||Salt water|
|Normal temperature||Apparent viscosity mPa.s||≤20||≤25|
|Rate of reducing viscosity %||≥85||≥65|
|High temperature||Apparent viscosity mPa.s||≤35||≤45|
|Rate of reducing viscosity %||≥60||≥45|
1.free-Chrome thinner may be added into drilling fluids either in the form of solution or powder. PH:10.0~10.5
2.As thinner ,fresh water mud 1.0%(W/V), salt water mud 2.0%(W/V).
25kg net weight. With PE film bag inside and paper-plastic complex bag outside.