| Message: | MH-I Anti-high temperature Chrome-free lignosulfonate is a thinner used in drilling fluid and fluid loss control agent. t is mainly suitable to the all kinds of dispersed muds.
A. Physical and chemical and Mud performance:
Item Requirement
Appearance Brown powder
Moisture (%) ≤8.5
PH(2% water solution) 2.8~4.8
B. Mud performance:
Item Fresh water drilling mud Salt water drilling mud
Normal temperature
Apparent viscosity (mPa.s) ≤20 ≤25
Rate of reducing viscosity( %) ≥80 ≥60
High temperature
Apparent viscosity mPa.s ≤35 ≤45
Rate of reducing viscosity % ≥60 ≥50
C. Characteristics：
1.With excellent thinning performance and filtration control capacity ,the mud performance of fresh water is better than salt water mud.
2. Anti-high temperature can reach 150 ℃, it can cooperate with other admixture agent.
3. It’s security product, non toxic, non corrosive, non flammable and explosive materials. It`s safe to use and causes no pollution to the environment.
D.Application:
1.MH-I Chrome-free thinner can be added into drilling fluids either in the form of solution or powder. After that, the PH of drilling fluids will decrease a little, so sodium hydroxide should be added to keep PH between 10.0~10.5.
2.As a thinner ,the recommended dosage is 1.0%(W/V) in fresh water mud , 1.5%(W/V) in salt water mud .
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